diff --git a/app/src/main/java/com/bintianqi/owndroid/MainActivity.kt b/app/src/main/java/com/bintianqi/owndroid/MainActivity.kt
index 7f0e837..88f1700 100644
--- a/app/src/main/java/com/bintianqi/owndroid/MainActivity.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/MainActivity.kt
@@ -6,7 +6,6 @@ import android.content.ComponentName
 import android.content.Context
 import android.os.Build.VERSION
 import android.os.Bundle
-import android.util.DisplayMetrics
 import android.widget.Toast
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
@@ -130,7 +129,7 @@ fun MyScaffold(){
         if(profileNotActivated){
             myDpm.setProfileEnabled(myComponent)
             sharedPref.edit().putBoolean("ManagedProfileActivated",true).apply()
-            Toast.makeText(myContext, myContext.getString(R.string.work_profile_activated), Toast.LENGTH_SHORT).show()
+            Toast.makeText(myContext, R.string.work_profile_activated, Toast.LENGTH_SHORT).show()
         }
     }
 }
diff --git a/app/src/main/java/com/bintianqi/owndroid/PkgSelector.kt b/app/src/main/java/com/bintianqi/owndroid/PkgSelector.kt
index adeb87e..2875e3d 100644
--- a/app/src/main/java/com/bintianqi/owndroid/PkgSelector.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/PkgSelector.kt
@@ -77,59 +77,54 @@ fun PackageSelector(navCtrl:NavHostController){
     Scaffold(
         topBar = {
             TopAppBar(
-                title = {
-                    Row(
-                        horizontalArrangement = Arrangement.SpaceBetween, modifier = Modifier.fillMaxWidth().padding(bottom = 2.dp),
-                        verticalAlignment = Alignment.CenterVertically
-                    ){
-                        Text(text = stringResource(R.string.pkg_selector))
-                        Row {
-                            Icon(
-                                painter = painterResource(R.drawable.filter_alt_fill0),
-                                contentDescription = "filter",
-                                modifier = Modifier
-                                    .padding(horizontal = 6.dp)
-                                    .clip(RoundedCornerShape(50))
-                                    .combinedClickable(
-                                        onClick = {
-                                            when(filter){
-                                                "data"-> {
-                                                    filter = "system"; co.launch {scrollState.scrollToItem(0)}
-                                                    Toast.makeText(context, context.getString(R.string.show_system_app), Toast.LENGTH_SHORT).show()
-                                                }
-                                                "system"-> {
-                                                    filter = "priv"; co.launch {scrollState.scrollToItem(0)}
-                                                    Toast.makeText(context, context.getString(R.string.show_priv_app), Toast.LENGTH_SHORT).show()
-                                                }
-                                                else-> {
-                                                    filter = "data"; co.launch {scrollState.scrollToItem(0)}
-                                                    Toast.makeText(context, context.getString(R.string.show_user_app), Toast.LENGTH_SHORT).show()
-                                                }
-                                            }
-                                        },
-                                        onLongClick = {
-                                            filter = "apex"
-                                            Toast.makeText(context, context.getString(R.string.show_apex_app), Toast.LENGTH_SHORT).show()
+                actions = {
+                    Icon(
+                        painter = painterResource(R.drawable.filter_alt_fill0),
+                        contentDescription = "filter",
+                        modifier = Modifier
+                            .padding(horizontal = 6.dp)
+                            .clip(RoundedCornerShape(50))
+                            .combinedClickable(
+                                onClick = {
+                                    when(filter){
+                                        "data"-> {
+                                            filter = "system"; co.launch {scrollState.scrollToItem(0)}
+                                            Toast.makeText(context, R.string.show_system_app, Toast.LENGTH_SHORT).show()
                                         }
-                                    )
-                                    .padding(5.dp)
-                            )
-                            Icon(
-                                painter = painterResource(R.drawable.refresh_fill0),
-                                contentDescription = "refresh",
-                                modifier = Modifier
-                                    .padding(horizontal = 6.dp)
-                                    .clip(RoundedCornerShape(50))
-                                    .clickable{
-                                        co.launch{
-                                            delay(100)
-                                            getPkgList()
+                                        "system"-> {
+                                            filter = "priv"; co.launch {scrollState.scrollToItem(0)}
+                                            Toast.makeText(context, R.string.show_priv_app, Toast.LENGTH_SHORT).show()
+                                        }
+                                        else-> {
+                                            filter = "data"; co.launch {scrollState.scrollToItem(0)}
+                                            Toast.makeText(context, R.string.show_user_app, Toast.LENGTH_SHORT).show()
                                         }
                                     }
-                                    .padding(5.dp)
+                                },
+                                onLongClick = {
+                                    filter = "apex"
+                                    Toast.makeText(context, R.string.show_apex_app, Toast.LENGTH_SHORT).show()
+                                }
                             )
-                        }
-                    }
+                            .padding(5.dp)
+                    )
+                    Icon(
+                        painter = painterResource(R.drawable.refresh_fill0),
+                        contentDescription = "refresh",
+                        modifier = Modifier
+                            .padding(horizontal = 6.dp)
+                            .clip(RoundedCornerShape(50))
+                            .clickable{
+                                co.launch{
+                                    delay(100)
+                                    getPkgList()
+                                }
+                            }
+                            .padding(5.dp)
+                    )
+                },
+                title = {
+                    Text(text = stringResource(R.string.pkg_selector))
                 },
                 navigationIcon = {NavIcon{navCtrl.navigateUp()}},
                 colors = TopAppBarDefaults.topAppBarColors(containerColor = bgColor)
diff --git a/app/src/main/java/com/bintianqi/owndroid/Receiver.kt b/app/src/main/java/com/bintianqi/owndroid/Receiver.kt
index cfb5c54..6bb6165 100644
--- a/app/src/main/java/com/bintianqi/owndroid/Receiver.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/Receiver.kt
@@ -24,12 +24,12 @@ class Receiver : DeviceAdminReceiver() {
 
     override fun onDisabled(context: Context, intent: Intent) {
         super.onDisabled(context, intent)
-        Toast.makeText(context, context.getString(R.string.onDisabled), Toast.LENGTH_SHORT).show()
+        Toast.makeText(context, R.string.onDisabled, Toast.LENGTH_SHORT).show()
     }
 
     override fun onProfileProvisioningComplete(context: Context, intent: Intent) {
         super.onProfileProvisioningComplete(context, intent)
-        Toast.makeText(context, context.getString(R.string.create_work_profile_success), Toast.LENGTH_SHORT).show()
+        Toast.makeText(context, R.string.create_work_profile_success, Toast.LENGTH_SHORT).show()
     }
 
 }
diff --git a/app/src/main/java/com/bintianqi/owndroid/Utils.kt b/app/src/main/java/com/bintianqi/owndroid/Utils.kt
index d228a41..fa28348 100644
--- a/app/src/main/java/com/bintianqi/owndroid/Utils.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/Utils.kt
@@ -3,16 +3,12 @@ package com.bintianqi.owndroid
 import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
-import android.content.Intent
 import android.net.Uri
-import android.os.Build.VERSION
 import android.widget.Toast
-import androidx.core.content.ContextCompat.startActivity
 import java.io.FileNotFoundException
 import java.io.IOException
 import java.io.InputStream
 
-
 fun uriToStream(
     context: Context,
     uri: Uri?,
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/ApplicationManage.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/ApplicationManage.kt
index 5d760e4..5411008 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/ApplicationManage.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/ApplicationManage.kt
@@ -186,9 +186,9 @@ private fun Home(navCtrl:NavHostController, pkgName: String){
                     try {
                         myDpm.setAlwaysOnVpnPackage(myComponent, pkgName, it)
                     } catch(e: UnsupportedOperationException) {
-                        Toast.makeText(myContext, myContext.getString(R.string.unsupported), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.unsupported, Toast.LENGTH_SHORT).show()
                     } catch(e: NameNotFoundException) {
-                        Toast.makeText(myContext, myContext.getString(R.string.not_installed), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.not_installed, Toast.LENGTH_SHORT).show()
                     }
                 }
             )
@@ -196,7 +196,7 @@ private fun Home(navCtrl:NavHostController, pkgName: String){
         if(isDeviceOwner(myDpm)||isProfileOwner(myDpm)){
             SubPageItem(R.string.block_uninstall,"",R.drawable.delete_forever_fill0){navCtrl.navigate("BlockUninstall")}
         }
-        if((VERSION.SDK_INT>=30&&isDeviceOwner(myDpm))||(VERSION.SDK_INT>=33&&isProfileOwner(myDpm))){
+        if((VERSION.SDK_INT>=33&&isProfileOwner(myDpm))||(VERSION.SDK_INT>=30&&isDeviceOwner(myDpm))){
             SubPageItem(R.string.ucd,"",R.drawable.do_not_touch_fill0){navCtrl.navigate("UserControlDisabled")}
         }
         if(VERSION.SDK_INT>=23&&(isDeviceOwner(myDpm)||isProfileOwner(myDpm))){
@@ -265,7 +265,7 @@ private fun UserCtrlDisabledPkg(pkgName:String){
                         myDpm.setUserControlDisabledPackages(myComponent,pkgList)
                         refresh()
                     }else{
-                        Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                     }
                 },
                 modifier = Modifier.fillMaxWidth(0.49F)
@@ -279,7 +279,7 @@ private fun UserCtrlDisabledPkg(pkgName:String){
                         myDpm.setUserControlDisabledPackages(myComponent,pkgList)
                         refresh()
                     }else{
-                        Toast.makeText(myContext, myContext.getString(R.string.not_exist), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.not_exist, Toast.LENGTH_SHORT).show()
                     }
                 },
                 modifier = Modifier.fillMaxWidth(0.96F)
@@ -317,7 +317,7 @@ private fun BlockUninstall(pkgName: String){
                 onClick = {
                     focusMgr.clearFocus()
                     myDpm.setUninstallBlocked(myComponent,pkgName,true)
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     state = myDpm.isUninstallBlocked(myComponent,pkgName)
                 },
                 modifier = Modifier.fillMaxWidth(0.49F)
@@ -328,7 +328,7 @@ private fun BlockUninstall(pkgName: String){
                 onClick = {
                     focusMgr.clearFocus()
                     myDpm.setUninstallBlocked(myComponent,pkgName,false)
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     state = myDpm.isUninstallBlocked(myComponent,pkgName)
                 },
                 modifier = Modifier.fillMaxWidth(0.96F)
@@ -578,9 +578,9 @@ private fun CredentialManagePolicy(pkgName: String){
                     }else{
                         myDpm.credentialManagerPolicy = null
                     }
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }catch(e:java.lang.IllegalArgumentException){
-                    Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                 }finally {
                     refreshPolicy()
                     credentialListText = credentialList.toText()
@@ -745,7 +745,7 @@ private fun KeepUninstalledApp(pkgName: String){
                 val getList = myDpm.getKeepUninstalledPackages(myComponent)
                 if(getList!=null){ keepUninstallPkg = getList }
                 listText = keepUninstallPkg.toText()
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ){
@@ -875,9 +875,9 @@ private fun DefaultDialerApp(pkgName: String){
             onClick = {
                 try{
                     myDpm.setDefaultDialerApplication(pkgName)
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }catch(e:IllegalArgumentException){
-                    Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                 }
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/ManagedProfile.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/ManagedProfile.kt
index f80db86..c367322 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/ManagedProfile.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/ManagedProfile.kt
@@ -129,7 +129,7 @@ private fun CreateWorkProfile(){
                     if(VERSION.SDK_INT>=33){intent.putExtra(EXTRA_PROVISIONING_ALLOW_OFFLINE,true)}
                     createManagedProfile.launch(intent)
                 }catch(e:ActivityNotFoundException){
-                    Toast.makeText(myContext,myContext.getString(R.string.unsupported),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.unsupported, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
@@ -157,7 +157,7 @@ private fun OrgOwnedProfile(){
                     color = colorScheme.onTertiaryContainer
                 )
             }
-            CopyTextButton(myContext, R.string.copy_command, stringResource(R.string.activate_org_profile_command, Binder.getCallingUid()/100000))
+            CopyTextButton(R.string.copy_command, stringResource(R.string.activate_org_profile_command, Binder.getCallingUid()/100000))
         }
     }
 }
@@ -188,7 +188,7 @@ private fun OrgID(){
         Button(
             onClick = {
                 myDpm.setOrganizationId(orgId)
-                Toast.makeText(myContext, myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success,Toast.LENGTH_SHORT).show()
             },
             enabled = orgId.length in 6..64,
             modifier = Modifier.fillMaxWidth()
@@ -229,7 +229,7 @@ private fun SuspendPersonalApp(){
         Button(
             onClick = {
                 myDpm.setManagedProfileMaximumTimeOff(myComponent,time.toLong())
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -260,7 +260,7 @@ private fun IntentFilter(){
         Button(
             onClick = {
                 myDpm.addCrossProfileIntentFilter(myComponent, IntentFilter(action), FLAG_PARENT_CAN_ACCESS_MANAGED)
-                Toast.makeText(myContext, myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -269,7 +269,7 @@ private fun IntentFilter(){
         Button(
             onClick = {
                 myDpm.addCrossProfileIntentFilter(myComponent, IntentFilter(action), FLAG_MANAGED_CAN_ACCESS_PARENT)
-                Toast.makeText(myContext, myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success,Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -279,7 +279,7 @@ private fun IntentFilter(){
         Button(
             onClick = {
                 myDpm.clearCrossProfileIntentFilters(myComponent)
-                Toast.makeText(myContext, myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ){
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/Network.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/Network.kt
index 29930f2..dcffeaa 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/Network.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/Network.kt
@@ -41,7 +41,6 @@ import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
-import com.bintianqi.owndroid.dpm.scrollAnim
 import com.bintianqi.owndroid.R
 import com.bintianqi.owndroid.Receiver
 import com.bintianqi.owndroid.toText
@@ -177,7 +176,7 @@ private fun WifiSecLevel(){
             enabled = isDeviceOwner(myDpm)||(isProfileOwner(myDpm)&&myDpm.isOrganizationOwnedDeviceWithManagedProfile),
             onClick = {
                 myDpm.minimumRequiredWifiSecurityLevel=selectedWifiSecLevel
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ){
@@ -232,9 +231,9 @@ private fun WifiSsidPolicy(){
             Button(
                 onClick = {
                     if(inputSsid==""){
-                        Toast.makeText(myContext, myContext.getString(R.string.cannot_be_empty), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.cannot_be_empty, Toast.LENGTH_SHORT).show()
                     }else if(WifiSsid.fromBytes(inputSsid.toByteArray()) in ssidSet){
-                        Toast.makeText(myContext, myContext.getString(R.string.already_exist), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.already_exist, Toast.LENGTH_SHORT).show()
                     }else{
                         ssidSet.add(WifiSsid.fromBytes(inputSsid.toByteArray()))
                         ssidList = ssidSet.toText()
@@ -248,13 +247,13 @@ private fun WifiSsidPolicy(){
             Button(
                 onClick = {
                     if(inputSsid==""){
-                        Toast.makeText(myContext, myContext.getString(R.string.cannot_be_empty), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.cannot_be_empty, Toast.LENGTH_SHORT).show()
                     }else if(WifiSsid.fromBytes(inputSsid.toByteArray()) in ssidSet){
                         ssidSet.remove(WifiSsid.fromBytes(inputSsid.toByteArray()))
                         inputSsid = ""
                         ssidList = ssidSet.toText()
                     }else{
-                        Toast.makeText(myContext, myContext.getString(R.string.not_exist), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.not_exist, Toast.LENGTH_SHORT).show()
                     }
                 },
                 modifier = Modifier.fillMaxWidth(0.96F)
@@ -267,16 +266,16 @@ private fun WifiSsidPolicy(){
                 focusMgr.clearFocus()
                 if(selectedPolicyType==-1){
                     if(policy==null&&ssidSet.isNotEmpty()){
-                        Toast.makeText(myContext, myContext.getString(R.string.please_select_a_policy), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.please_select_a_policy, Toast.LENGTH_SHORT).show()
                     }else{
                         myDpm.wifiSsidPolicy = null
                         refreshPolicy()
-                        Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     }
                 }else{
                     myDpm.wifiSsidPolicy = if(ssidSet.size==0){ null }else{ WifiSsidPolicy(selectedPolicyType, ssidSet) }
                     refreshPolicy()
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
@@ -343,9 +342,9 @@ private fun PrivateDNS(){
                     result = myDpm.setGlobalPrivateDnsModeSpecifiedHost(myComponent,inputHost)
                     Toast.makeText(myContext, operationResult[result], Toast.LENGTH_SHORT).show()
                 }catch(e:IllegalArgumentException){
-                    Toast.makeText(myContext, myContext.getString(R.string.invalid_hostname), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.invalid_hostname, Toast.LENGTH_SHORT).show()
                 }catch(e:SecurityException){
-                    Toast.makeText(myContext, myContext.getString(R.string.security_exception), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.security_exception, Toast.LENGTH_SHORT).show()
                 }finally {
                     status = dnsStatus[myDpm.getGlobalPrivateDnsMode(myComponent)]
                 }
@@ -376,10 +375,10 @@ private fun NetLog(){
                 val log = myDpm.retrieveNetworkLogs(myComponent,1234567890)
                 if(log!=null){
                     for(i in log){ Log.d("NetLog",i.toString()) }
-                    Toast.makeText(myContext, myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }else{
                     Log.d("NetLog",myContext.getString(R.string.none))
-                    Toast.makeText(myContext, myContext.getString(R.string.none),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.none, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
@@ -416,7 +415,7 @@ private fun WifiKeypair(){
             Button(
                 onClick = {
                     val result = myDpm.grantKeyPairToWifiAuth(keyPair)
-                    Toast.makeText(myContext, myContext.getString(if(result){R.string.success}else{R.string.fail}), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, if(result){R.string.success}else{R.string.fail}, Toast.LENGTH_SHORT).show()
                 },
                 modifier = Modifier.fillMaxWidth(0.49F)
             ) {
@@ -425,7 +424,7 @@ private fun WifiKeypair(){
             Button(
                 onClick = {
                     val result = myDpm.revokeKeyPairFromWifiAuth(keyPair)
-                    Toast.makeText(myContext, myContext.getString(if(result){R.string.success}else{R.string.fail}), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, if(result){R.string.success}else{R.string.fail}, Toast.LENGTH_SHORT).show()
                 },
                 modifier = Modifier.fillMaxWidth(0.96F)
             ) {
@@ -784,7 +783,7 @@ private fun APN(){
                             Button(
                                 onClick = {
                                     val success = myDpm.updateOverrideApn(myComponent,id,result)
-                                    Toast.makeText(myContext, myContext.getString(if(success){R.string.success}else{R.string.fail}), Toast.LENGTH_SHORT).show()
+                                    Toast.makeText(myContext, if(success){R.string.success}else{R.string.fail}, Toast.LENGTH_SHORT).show()
                                 },
                                 Modifier.fillMaxWidth(0.49F)
                             ){
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/Password.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/Password.kt
index 1d16d46..5e6de4a 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/Password.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/Password.kt
@@ -163,8 +163,8 @@ private fun ResetPasswordToken(){
         Spacer(Modifier.padding(vertical = 5.dp))
         Button(
             onClick = {
-                if(myDpm.clearResetPasswordToken(myComponent)){ Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
-                }else{ Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show() }
+                if(myDpm.clearResetPasswordToken(myComponent)){ Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
+                }else{ Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show() }
             },
             modifier = Modifier.fillMaxWidth(),
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm)
@@ -175,12 +175,12 @@ private fun ResetPasswordToken(){
             onClick = {
                 try {
                     if(myDpm.setResetPasswordToken(myComponent, myByteArray)){
-                        Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     }else{
-                        Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                     }
                 }catch(e:SecurityException){
-                    Toast.makeText(myContext, myContext.getString(R.string.security_exception), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.security_exception, Toast.LENGTH_SHORT).show()
                 }
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
@@ -192,8 +192,8 @@ private fun ResetPasswordToken(){
             onClick = {
                 if(!myDpm.isResetPasswordTokenActive(myComponent)){
                     try{ activateToken(myContext) }
-                    catch(e:NullPointerException){ Toast.makeText(myContext, myContext.getString(R.string.please_set_a_token), Toast.LENGTH_SHORT).show() }
-                }else{ Toast.makeText(myContext, myContext.getString(R.string.token_already_activated), Toast.LENGTH_SHORT).show() }
+                    catch(e:NullPointerException){ Toast.makeText(myContext, R.string.please_set_a_token, Toast.LENGTH_SHORT).show() }
+                }else{ Toast.makeText(myContext, R.string.token_already_activated, Toast.LENGTH_SHORT).show() }
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -243,7 +243,7 @@ private fun ResetPassword(){
         Button(
             onClick = {
                 if(newPwd.length>=4||newPwd.isEmpty()){ confirmed=!confirmed
-                }else{ Toast.makeText(myContext, myContext.getString(R.string.require_4_digit_password), Toast.LENGTH_SHORT).show() }
+                }else{ Toast.makeText(myContext, R.string.require_4_digit_password, Toast.LENGTH_SHORT).show() }
             },
             enabled = isDeviceOwner(myDpm) || isProfileOwner(myDpm) || myDpm.isAdminActive(myComponent),
             modifier = Modifier.fillMaxWidth(),
@@ -259,8 +259,8 @@ private fun ResetPassword(){
             Button(
                 onClick = {
                     val resetSuccess = myDpm.resetPasswordWithToken(myComponent,newPwd,myByteArray,resetPwdFlag)
-                    if(resetSuccess){ Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show();newPwd=""}
-                    else{ Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show() }
+                    if(resetSuccess){ Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show();newPwd=""}
+                    else{ Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show() }
                     confirmed=false
                 },
                 colors = ButtonDefaults.buttonColors(containerColor = colorScheme.error, contentColor = colorScheme.onError),
@@ -273,8 +273,8 @@ private fun ResetPassword(){
         Button(
             onClick = {
                 val resetSuccess = myDpm.resetPassword(newPwd,resetPwdFlag)
-                if(resetSuccess){ Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show(); newPwd=""}
-                else{ Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show() }
+                if(resetSuccess){ Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show(); newPwd=""}
+                else{ Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show() }
                 confirmed=false
             },
             enabled = confirmed,
@@ -315,7 +315,7 @@ private fun PasswordComplexity(){
         Button(
             onClick = {
                 myDpm.requiredPasswordComplexity = selectedItem
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             enabled = isDeviceOwner(myDpm)|| isProfileOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -563,7 +563,7 @@ private fun KeyguardDisabledFeatures(){
                     if(widgets){result+=KEYGUARD_DISABLE_WIDGETS_ALL}
                 }
                 myDpm.setKeyguardDisabledFeatures(myComponent,result)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 calculateCustomFeature()
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
@@ -611,7 +611,7 @@ private fun PasswordQuality(){
         Button(
             onClick = {
                 myDpm.setPasswordQuality(myComponent,selectedItem)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             enabled = isDeviceOwner(myDpm) || isProfileOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -629,6 +629,6 @@ private fun activateToken(myContext: Context){
     if (confirmIntent != null) {
         startActivity(myContext,confirmIntent, null)
     } else {
-        Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+        Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
     }
 }
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/Permissions.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/Permissions.kt
index 32da9b9..ee9e97b 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/Permissions.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/Permissions.kt
@@ -167,7 +167,7 @@ private fun LockScreenInfo(){
             onClick = {
                 focusMgr.clearFocus()
                 myDpm.setDeviceOwnerLockScreenInfo(myComponent,infoText)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -177,7 +177,7 @@ private fun LockScreenInfo(){
             onClick = {
                 focusMgr.clearFocus()
                 myDpm.setDeviceOwnerLockScreenInfo(myComponent,null)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -219,7 +219,7 @@ private fun DeviceAdmin(){
                 SelectionContainer {
                     Text(text = stringResource(R.string.activate_device_admin_command))
                 }
-                CopyTextButton(myContext, R.string.copy_command, stringResource(R.string.activate_device_admin_command))
+                CopyTextButton(R.string.copy_command, stringResource(R.string.activate_device_admin_command))
             }
         }
     }
@@ -256,7 +256,7 @@ private fun ProfileOwner(){
                 SelectionContainer{
                     Text(text = stringResource(R.string.activate_profile_owner_command))
                 }
-                CopyTextButton(myContext, R.string.copy_command, stringResource(R.string.activate_profile_owner_command))
+                CopyTextButton(R.string.copy_command, stringResource(R.string.activate_profile_owner_command))
             }
         }
     }
@@ -289,7 +289,7 @@ private fun DeviceOwner(){
                 SelectionContainer{
                     Text(text = stringResource(R.string.activate_device_owner_command))
                 }
-                CopyTextButton(myContext, R.string.copy_command, stringResource(R.string.activate_device_owner_command))
+                CopyTextButton(R.string.copy_command, stringResource(R.string.activate_device_owner_command))
             }
         }
     }
@@ -357,7 +357,7 @@ private fun SpecificID(){
         Spacer(Modifier.padding(vertical = 5.dp))
         if(specificId!=""){
             SelectionContainer(modifier = Modifier.horizontalScroll(rememberScrollState())){ Text(specificId) }
-            CopyTextButton(myContext, R.string.copy, specificId)
+            CopyTextButton(R.string.copy, specificId)
         }else{
             Text(stringResource(R.string.require_set_org_id))
         }
@@ -387,7 +387,7 @@ private fun OrgName(){
             onClick = {
                 focusMgr.clearFocus()
                 myDpm.setOrganizationName(myComponent,orgName)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ){
@@ -428,7 +428,7 @@ private fun SupportMsg(){
                 focusMgr.clearFocus()
                 myDpm.setShortSupportMessage(myComponent, shortMsg)
                 myDpm.setLongSupportMessage(myComponent, longMsg)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -440,7 +440,7 @@ private fun SupportMsg(){
                 focusMgr.clearFocus()
                 myDpm.setShortSupportMessage(myComponent, null)
                 myDpm.setLongSupportMessage(myComponent, null)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -539,9 +539,9 @@ private fun TransformOwnership(){
             onClick = {
                 try {
                     myDpm.transferOwnership(myComponent,ComponentName(pkg, cls),null)
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }catch(e:IllegalArgumentException){
-                    Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
@@ -559,6 +559,6 @@ private fun activateDeviceAdmin(inputContext:Context,inputComponent:ComponentNam
         intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, inputContext.getString(R.string.activate_device_admin_here))
         addDeviceAdmin.launch(intent)
     }catch(e:ActivityNotFoundException){
-        Toast.makeText(inputContext,inputContext.getString(R.string.unsupported),Toast.LENGTH_SHORT).show()
+        Toast.makeText(inputContext, R.string.unsupported, Toast.LENGTH_SHORT).show()
     }
 }
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuActivate.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuActivate.kt
index 2934e97..3c501fb 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuActivate.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuActivate.kt
@@ -225,12 +225,12 @@ fun userServiceControl(context:Context, status:Boolean){
             if (binder.pingBinder()) {
                 service = IUserService.Stub.asInterface(binder)
             } else {
-                Toast.makeText(context,context.getString(R.string.invalid_binder),Toast.LENGTH_SHORT).show()
+                Toast.makeText(context, R.string.invalid_binder, Toast.LENGTH_SHORT).show()
             }
         }
         override fun onServiceDisconnected(componentName: ComponentName) {
             service = null
-            Toast.makeText(context,context.getString(R.string.shizuku_service_disconnected),Toast.LENGTH_SHORT).show()
+            Toast.makeText(context, R.string.shizuku_service_disconnected, Toast.LENGTH_SHORT).show()
         }
     }
     val userServiceArgs  = Shizuku.UserServiceArgs(
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuService.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuService.kt
index 1a77eeb..3b17ea2 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuService.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuService.kt
@@ -1,6 +1,5 @@
 package com.bintianqi.owndroid.dpm
 
-import android.os.IBinder
 import android.system.Os
 import androidx.annotation.Keep
 import com.bintianqi.owndroid.IUserService
@@ -11,10 +10,6 @@ var service:IUserService? = null
 
 @Keep
 class ShizukuService: IUserService.Stub() {
-    override fun asBinder(): IBinder {
-        TODO("Not yet implemented")
-    }
-
     override fun destroy(){ }
 
     override fun execute(command: String?): String {
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/SystemManager.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/SystemManager.kt
index c5e44e9..50a18e3 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/SystemManager.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/SystemManager.kt
@@ -217,7 +217,7 @@ private fun Switches(){
                     if(myDpm.canUsbDataSignalingBeDisabled()){
                         myDpm.isUsbDataSignalingEnabled = it
                     }else{
-                        Toast.makeText(myContext,myContext.getString(R.string.unsupported),Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.unsupported, Toast.LENGTH_SHORT).show()
                     }
                 }
             )
@@ -238,8 +238,7 @@ private fun Keyguard(){
         if(VERSION.SDK_INT>=23){
             Button(
                 onClick = {
-                    Toast.makeText(myContext,
-                        myContext.getString(if(myDpm.setKeyguardDisabled(myComponent,true)){R.string.success}else{R.string.fail}), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, if(myDpm.setKeyguardDisabled(myComponent,true)){R.string.success}else{R.string.fail}, Toast.LENGTH_SHORT).show()
                 },
                 enabled = isDeviceOwner(myDpm)|| (VERSION.SDK_INT>=28&&isProfileOwner(myDpm)&&myDpm.isAffiliatedUser),
                 modifier = Modifier.fillMaxWidth()
@@ -248,8 +247,7 @@ private fun Keyguard(){
             }
             Button(
                 onClick = {
-                    Toast.makeText(myContext,
-                        myContext.getString(if(myDpm.setKeyguardDisabled(myComponent,false)){R.string.success}else{R.string.fail}), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, if(myDpm.setKeyguardDisabled(myComponent,false)){R.string.success}else{R.string.fail}, Toast.LENGTH_SHORT).show()
                 },
                 enabled = isDeviceOwner(myDpm)|| (VERSION.SDK_INT>=28&&isProfileOwner(myDpm)&&myDpm.isAffiliatedUser),
                 modifier = Modifier.fillMaxWidth()
@@ -370,7 +368,7 @@ private fun PermissionPolicy(){
         Button(
             onClick = {
                 myDpm.setPermissionPolicy(myComponent,selectedPolicy)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -396,9 +394,9 @@ private fun MTEPolicy(){
             onClick = {
                 try {
                     myDpm.mtePolicy = selectedMtePolicy
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }catch(e:java.lang.UnsupportedOperationException){
-                    Toast.makeText(myContext, myContext.getString(R.string.unsupported), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.unsupported, Toast.LENGTH_SHORT).show()
                 }
                 selectedMtePolicy = myDpm.mtePolicy
             },
@@ -448,7 +446,7 @@ private fun NearbyStreamingPolicy(){
         Button(
             onClick = {
                 myDpm.nearbyNotificationStreamingPolicy = notificationPolicy
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ) {
@@ -531,7 +529,7 @@ private fun LockTaskFeatures(){
                 }
                 myDpm.setLockTaskFeatures(myComponent,result)
                 refreshFeature()
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             }
         ) {
             Text(stringResource(R.string.apply))
@@ -564,7 +562,7 @@ private fun LockTaskFeatures(){
                     focusMgr.clearFocus()
                     whitelist.add(inputPkg)
                     myDpm.setLockTaskPackages(myComponent,whitelist.toTypedArray())
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     refreshWhitelist()
                 },
                 modifier = Modifier.fillMaxWidth(0.49F)
@@ -577,9 +575,9 @@ private fun LockTaskFeatures(){
                     if(inputPkg in whitelist){
                         whitelist.remove(inputPkg)
                         myDpm.setLockTaskPackages(myComponent,whitelist.toTypedArray())
-                        Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     }else{
-                        Toast.makeText(myContext, myContext.getString(R.string.not_exist), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.not_exist, Toast.LENGTH_SHORT).show()
                     }
                     refreshWhitelist()
                 },
@@ -626,7 +624,7 @@ private fun CaCert(){
                 Button(
                     onClick = {
                         val result = myDpm.installCaCert(myComponent, caCert)
-                        Toast.makeText(myContext, myContext.getString(if(result){R.string.success}else{R.string.fail}), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, if(result){R.string.success}else{R.string.fail}, Toast.LENGTH_SHORT).show()
                         refresh()
                     },
                     modifier = Modifier.fillMaxWidth(0.49F)
@@ -638,8 +636,8 @@ private fun CaCert(){
                         if(exist){
                             myDpm.uninstallCaCert(myComponent, caCert)
                             exist = myDpm.hasCaCertInstalled(myComponent, caCert)
-                            Toast.makeText(myContext, myContext.getString(if(exist){R.string.fail}else{R.string.success}), Toast.LENGTH_SHORT).show()
-                        }else{ Toast.makeText(myContext, myContext.getString(R.string.not_exist), Toast.LENGTH_SHORT).show() }
+                            Toast.makeText(myContext, if(exist){R.string.fail}else{R.string.success}, Toast.LENGTH_SHORT).show()
+                        }else{ Toast.makeText(myContext, R.string.not_exist, Toast.LENGTH_SHORT).show() }
                     },
                     modifier = Modifier.fillMaxWidth(0.96F)
                 ) {
@@ -650,7 +648,7 @@ private fun CaCert(){
         Button(
             onClick = {
                 myDpm.uninstallAllUserCaCerts(myComponent)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             modifier = Modifier.fillMaxWidth()
         ){
@@ -676,10 +674,10 @@ private fun SecurityLogs(){
                 val log = myDpm.retrieveSecurityLogs(myComponent)
                 if(log!=null){
                     for(i in log){ Log.d("SecureLog",i.toString()) }
-                    Toast.makeText(myContext,myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }else{
                     Log.d("SecureLog",myContext.getString(R.string.none))
-                    Toast.makeText(myContext, myContext.getString(R.string.no_logs),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.no_logs, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
@@ -691,10 +689,10 @@ private fun SecurityLogs(){
                 val log = myDpm.retrievePreRebootSecurityLogs(myComponent)
                 if(log!=null){
                     for(i in log){ Log.d("SecureLog",i.toString()) }
-                    Toast.makeText(myContext,myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }else{
                     Log.d("SecureLog",myContext.getString(R.string.none))
-                    Toast.makeText(myContext,myContext.getString(R.string.no_logs),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.no_logs, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/UserManager.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/UserManager.kt
index 29ff085..6d2f89f 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/UserManager.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/UserManager.kt
@@ -224,10 +224,7 @@ private fun UserOperation(){
         Button(
             onClick = {
                 focusMgr.clearFocus()
-                Toast.makeText(
-                    myContext,
-                    myContext.getString(if(myDpm.switchUser(myComponent,userHandleById)) { R.string.success }else{ R.string.fail }), Toast.LENGTH_SHORT
-                ).show()
+                Toast.makeText(myContext, if(myDpm.switchUser(myComponent,userHandleById)) { R.string.success }else{ R.string.fail }, Toast.LENGTH_SHORT).show()
             },
             enabled = isDeviceOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -242,7 +239,7 @@ private fun UserOperation(){
                         val result = myDpm.stopUser(myComponent,userHandleById)
                         Toast.makeText(myContext, userOperationResultCode(result,myContext), Toast.LENGTH_SHORT).show()
                     }catch(e:IllegalArgumentException){
-                        Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                     }
                 },
                 enabled = isDeviceOwner(myDpm),
@@ -255,10 +252,10 @@ private fun UserOperation(){
             onClick = {
                 focusMgr.clearFocus()
                 if(myDpm.removeUser(myComponent,userHandleById)){
-                    Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     idInput=""
                 }else{
-                    Toast.makeText(myContext, myContext.getString(R.string.fail), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.fail, Toast.LENGTH_SHORT).show()
                 }
             },
             enabled = isDeviceOwner(myDpm),
@@ -369,14 +366,14 @@ private fun AffiliationID(){
         Button(
             onClick = {
                 if("" in affiliationID) {
-                    Toast.makeText(myContext, myContext.getString(R.string.include_empty_string), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.include_empty_string, Toast.LENGTH_SHORT).show()
                 }else if(affiliationID.isEmpty()){
-                    Toast.makeText(myContext, myContext.getString(R.string.cannot_be_empty), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.cannot_be_empty, Toast.LENGTH_SHORT).show()
                 }else{
                     myDpm.setAffiliationIds(myComponent, affiliationID)
                     affiliationID = myDpm.getAffiliationIds(myComponent)
                     list = affiliationID.toText()
-                    Toast.makeText(myContext,myContext.getString(R.string.success),Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                 }
             },
             modifier = Modifier.fillMaxWidth()
@@ -411,7 +408,7 @@ private fun Username(){
         Button(
             onClick = {
                 myDpm.setProfileName(myComponent,inputUsername)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -469,7 +466,7 @@ private fun UserSessionMessage(){
             onClick = {
                 myDpm.setStartUserSessionMessage(myComponent,start)
                 myDpm.setEndUserSessionMessage(myComponent,end)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -480,7 +477,7 @@ private fun UserSessionMessage(){
             onClick = {
                 myDpm.setStartUserSessionMessage(myComponent,null)
                 myDpm.setEndUserSessionMessage(myComponent,null)
-                Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
             },
             enabled = isDeviceOwner(myDpm)||isProfileOwner(myDpm),
             modifier = Modifier.fillMaxWidth()
@@ -525,7 +522,7 @@ private fun UserIcon(){
                     uriToStream(myContext, userIconUri){stream ->
                         val bitmap = BitmapFactory.decodeStream(stream)
                         myDpm.setUserIcon(myComponent,bitmap)
-                        Toast.makeText(myContext, myContext.getString(R.string.success), Toast.LENGTH_SHORT).show()
+                        Toast.makeText(myContext, R.string.success, Toast.LENGTH_SHORT).show()
                     }
                 },
                 modifier = Modifier.fillMaxWidth()
diff --git a/app/src/main/java/com/bintianqi/owndroid/dpm/UserRestriction.kt b/app/src/main/java/com/bintianqi/owndroid/dpm/UserRestriction.kt
index 77e0522..aadeff6 100644
--- a/app/src/main/java/com/bintianqi/owndroid/dpm/UserRestriction.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/dpm/UserRestriction.kt
@@ -124,7 +124,7 @@ private fun Home(navCtrl:NavHostController,scrollState: ScrollState){
 @Composable
 private fun Internet(){
     Column(modifier = Modifier.fillMaxSize().verticalScroll(rememberScrollState())){
-        for(internetItem in RestrictionData().internet()){
+        for(internetItem in RestrictionData.internet()){
             UserRestrictionItem(internetItem.restriction,internetItem.name,internetItem.desc,internetItem.ico)
         }
         Spacer(Modifier.padding(vertical = 30.dp))
@@ -133,9 +133,8 @@ private fun Internet(){
 
 @Composable
 private fun Connectivity(){
-    val myContext = LocalContext.current
     Column(modifier = Modifier.fillMaxSize().verticalScroll(rememberScrollState())){
-        for(connectivityItem in RestrictionData().connectivity(myContext)){
+        for(connectivityItem in RestrictionData.connectivity()){
             UserRestrictionItem(connectivityItem.restriction,connectivityItem.name,connectivityItem.desc,connectivityItem.ico)
         }
         Spacer(Modifier.padding(vertical = 30.dp))
@@ -146,7 +145,7 @@ private fun Connectivity(){
 fun Application(){
     val myContext = LocalContext.current
     Column(modifier = Modifier.fillMaxSize().verticalScroll(rememberScrollState())){
-        for(applicationItem in RestrictionData().application(myContext)){
+        for(applicationItem in RestrictionData.application(myContext)){
             UserRestrictionItem(applicationItem.restriction,applicationItem.name,applicationItem.desc,applicationItem.ico)
         }
         Spacer(Modifier.padding(vertical = 30.dp))
@@ -156,7 +155,7 @@ fun Application(){
 @Composable
 private fun User(){
     Column(modifier = Modifier.fillMaxSize().verticalScroll(rememberScrollState())){
-        for(userItem in RestrictionData().user()){
+        for(userItem in RestrictionData.user()){
             UserRestrictionItem(userItem.restriction,userItem.name,userItem.desc,userItem.ico)
         }
         Spacer(Modifier.padding(vertical = 30.dp))
@@ -166,7 +165,7 @@ private fun User(){
 @Composable
 private fun Media(){
     Column(modifier = Modifier.fillMaxSize().verticalScroll(rememberScrollState())){
-        for(mediaItem in RestrictionData().media()){
+        for(mediaItem in RestrictionData.media()){
             UserRestrictionItem(mediaItem.restriction,mediaItem.name,mediaItem.desc,mediaItem.ico)
         }
         Spacer(Modifier.padding(vertical = 30.dp))
@@ -177,7 +176,7 @@ private fun Media(){
 private fun Other(){
     val myContext = LocalContext.current
     Column(modifier = Modifier.fillMaxSize().verticalScroll(rememberScrollState())){
-        for(otherItem in RestrictionData().other(myContext)){
+        for(otherItem in RestrictionData.other(myContext)){
             UserRestrictionItem(otherItem.restriction,otherItem.name,otherItem.desc,otherItem.ico)
         }
         Spacer(Modifier.padding(vertical = 30.dp))
@@ -206,7 +205,7 @@ private fun UserRestrictionItem(
                 }
             }catch(e:SecurityException){
                 if(isProfileOwner(myDpm)){
-                    Toast.makeText(myContext, myContext.getString(R.string.require_device_owner), Toast.LENGTH_SHORT).show()
+                    Toast.makeText(myContext, R.string.require_device_owner, Toast.LENGTH_SHORT).show()
                 }
             }
         },
@@ -214,7 +213,7 @@ private fun UserRestrictionItem(
     )
 }
 
-private class RestrictionData{
+private object RestrictionData{
     fun internet():List<Restriction>{
         val list:MutableList<Restriction> = mutableListOf()
         list += Restriction(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS, R.string.config_mobile_network,"",R.drawable.signal_cellular_alt_fill0)
@@ -241,7 +240,7 @@ private class RestrictionData{
         list += Restriction(UserManager.DISALLOW_OUTGOING_CALLS,R.string.outgoing_calls,"",R.drawable.phone_forwarded_fill0)
         return list
     }
-    fun connectivity(myContext:Context):List<Restriction>{
+    fun connectivity():List<Restriction>{
         val list:MutableList<Restriction> = mutableListOf()
         if(VERSION.SDK_INT>=26){
             list += Restriction(UserManager.DISALLOW_BLUETOOTH,R.string.bluetooth,"",R.drawable.bluetooth_fill0)
diff --git a/app/src/main/java/com/bintianqi/owndroid/ui/Components.kt b/app/src/main/java/com/bintianqi/owndroid/ui/Components.kt
index b0d9e0f..075712d 100644
--- a/app/src/main/java/com/bintianqi/owndroid/ui/Components.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/ui/Components.kt
@@ -168,7 +168,8 @@ fun TopBar(
 }
 
 @Composable
-fun CopyTextButton(context: Context, @StringRes label: Int, content: String){
+fun CopyTextButton(@StringRes label: Int, content: String){
+    val context = LocalContext.current
     var ok by remember{mutableStateOf(false)}
     val scope = rememberCoroutineScope()
     Button(
@@ -176,7 +177,7 @@ fun CopyTextButton(context: Context, @StringRes label: Int, content: String){
             if(!ok){
                 scope.launch{
                     if(writeClipBoard(context,content)){ ok = true; delay(2000); ok = false }
-                    else{ Toast.makeText(context,context.getString(R.string.fail),Toast.LENGTH_SHORT).show() }
+                    else{ Toast.makeText(context, R.string.fail, Toast.LENGTH_SHORT).show() }
                 }
             }
         }