simplify code of app manage

app/src/main/java/com/binbin/androidowner/ApplicationManage.kt

@@ -2,13 +2,20 @@ package com.binbin.androidowner
 
 import android.app.admin.DevicePolicyManager
 import android.content.ComponentName
+import android.content.Context
 import android.content.pm.PackageManager.NameNotFoundException
+import android.os.Build.VERSION
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Button
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextField
 import androidx.compose.runtime.Composable
@@ -18,10 +25,13 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 
+
 @Composable
-fun ApplicationManage(myDpm:DevicePolicyManager, myComponent:ComponentName){
+fun ApplicationManage(myDpm:DevicePolicyManager, myComponent:ComponentName,myContext:Context){
     var pkgName by remember { mutableStateOf("") }
     Column(
         modifier = Modifier
@@ -29,59 +39,83 @@ fun ApplicationManage(myDpm:DevicePolicyManager, myComponent:ComponentName){
             .padding(8.dp),
         horizontalAlignment = Alignment.CenterHorizontally
     ) {
-        var isAppHidden by remember{ mutableStateOf(false) }
-        var isAppSuspended by remember{ mutableStateOf(false) }
-        var isAppUninstallBlock by remember{ mutableStateOf(false) }
-        var suspendedReply = ""
-        isAppHidden = try {
-            myDpm.isApplicationHidden(myComponent,pkgName)
-        }catch (e:SecurityException){
-            false
-        }
-        isAppUninstallBlock = try {
-            myDpm.isUninstallBlocked(myComponent,pkgName)
-        }catch (e:SecurityException){
-            false
-        }
-        try{
-            isAppSuspended = myDpm.isPackageSuspended(myComponent,pkgName)
-        }catch(e:NameNotFoundException){
-            suspendedReply = "应用不存在！"
-            isAppSuspended = false
-        }catch (e:SecurityException){
-            suspendedReply = "无权限"
-            isAppSuspended = false
-        }
         Text("以下功能都需要DeviceOwner权限")
-        TextField(value = pkgName, onValueChange = {pkgName = it}, label = { Text("包名") })
-        Spacer(Modifier.padding(5.dp))
-        Row{
-            Button(onClick = { myDpm.setApplicationHidden(myComponent,pkgName,true); isAppHidden = myDpm.isApplicationHidden(myComponent,pkgName) },modifier = Modifier.padding(end = 8.dp)) {
-                Text("隐藏")
-            }
-            Button(onClick = { myDpm.setApplicationHidden(myComponent,pkgName,false); isAppHidden = myDpm.isApplicationHidden(myComponent,pkgName) }) {
-                Text("显示")
+        TextField(
+            value = pkgName,
+            onValueChange = {
+                pkgName = it
+            },
+            label = { Text("包名") }
+        )
+        val isSuspended = {
+            try{
+                myDpm.isPackageSuspended(myComponent,pkgName)
+            }catch(e:NameNotFoundException){
+                false
             }
         }
-        Text("应用隐藏：$isAppHidden ${if(isAppHidden){"（这个应用也许没有被安装）"}else{""}}")
-        Row{
-            Button(onClick = {myDpm.setPackagesSuspended(myComponent, arrayOf(pkgName),true); isAppSuspended = myDpm.isPackageSuspended(myComponent,pkgName)},modifier = Modifier.padding(end = 8.dp)) {
-                Text("停用")
-            }
-            Button(onClick = {myDpm.setPackagesSuspended(myComponent, arrayOf(pkgName),false); isAppSuspended = myDpm.isPackageSuspended(myComponent,pkgName)}) {
-                Text("启用")
-            }
-        }
-        Text("应用停用：$isAppSuspended $suspendedReply")
-        Text("阻止卸载功能有可能出问题")
+        AppManageItem(R.string.hide,R.string.isapphidden_desc,myDpm, {myDpm.isApplicationHidden(myComponent,pkgName)},
+            {b -> myDpm.setApplicationHidden(myComponent,pkgName,b)})
+        AppManageItem(R.string.suspend,R.string.place_holder,myDpm, isSuspended,
+            {b -> myDpm.setPackagesSuspended(myComponent, arrayOf(pkgName) ,b)})
+        /*AppManageItem(R.string.block_unins,R.string.sometimes_not_avaliable,myDpm, {myDpm.isUninstallBlocked(myComponent,pkgName)},
+            {b -> myDpm.setUninstallBlocked(myComponent,pkgName,b)})*/
+        Text("因为无法获取某个应用是否防卸载，无法使用开关控制防卸载")
         Row {
-            Button(onClick = { myDpm.setUninstallBlocked(myComponent, pkgName, true); isAppUninstallBlock = myDpm.isUninstallBlocked(myComponent,pkgName) },modifier = Modifier.padding(end = 8.dp)) {
-                Text("阻止卸载")
+            Button(onClick = {myDpm.setUninstallBlocked(myComponent,pkgName,false)}) {
+                Text("取消防卸载")
             }
-            Button(onClick = { myDpm.setUninstallBlocked(myComponent, pkgName, false); isAppUninstallBlock = myDpm.isUninstallBlocked(myComponent,pkgName)}) {
-                Text("允许卸载")
+            Spacer(Modifier.padding(horizontal = 2.dp))
+            Button(onClick = {myDpm.setUninstallBlocked(myComponent,pkgName,true)}) {
+                Text("防卸载")
             }
         }
-        Text("应用防卸载：$isAppUninstallBlock ${if(!isAppUninstallBlock){"（这个应用也许没有被安装）"}else{""}}")
+        if(VERSION.SDK_INT>=30){
+            AppManageItem(R.string.user_ctrl_disabled,R.string.user_ctrl_disabled_desc,myDpm, {pkgName in myDpm.getUserControlDisabledPackages(myComponent)},
+                {b->myDpm.setUserControlDisabledPackages(myComponent, mutableListOf(if(b){pkgName}else{null}))})
+        }
+        Spacer(Modifier.padding(5.dp))
+    }
+}
+
+@Composable
+private fun AppManageItem(
+    itemName:Int,
+    itemDesc:Int,
+    myDpm: DevicePolicyManager,
+    getMethod:()->Boolean,
+    setMethod:(b:Boolean)->Unit
+){
+    var isEnabled by remember{ mutableStateOf(false) }
+    if(myDpm.isDeviceOwnerApp("com.binbin.androidowner")){
+        isEnabled = getMethod()
+    }
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(5.dp)
+            .clip(RoundedCornerShape(15))
+            .background(color = MaterialTheme.colorScheme.primaryContainer)
+            .padding(8.dp),
+        horizontalArrangement = Arrangement.SpaceBetween,
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Column {
+            Text(
+                text = stringResource(itemName),
+                style = MaterialTheme.typography.titleLarge
+            )
+            if(itemDesc!=R.string.place_holder){
+                Text(stringResource(itemDesc))
+            }
+        }
+        Switch(
+            checked = isEnabled,
+            onCheckedChange = {
+                setMethod(!isEnabled)
+                isEnabled = getMethod()
+            },
+            enabled = myDpm.isDeviceOwnerApp("com.binbin.androidowner")
+        )
     }
 }