Rename project

from 'Android Owner' to 'OwnDroid'
resolve #2

app/src/main/java/com/bintianqi/owndroid/Utils.kt

@@ -0,0 +1,69 @@
+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?,
+    operation:(stream: InputStream)->Unit
+){
+    if(uri!=null){
+        try{
+            val stream = context.contentResolver.openInputStream(uri)
+            if(stream!=null) { operation(stream) }
+            else{ Toast.makeText(context, "空的流", Toast.LENGTH_SHORT).show() }
+            stream?.close()
+        }
+        catch(e: FileNotFoundException){ Toast.makeText(context, "文件不存在", Toast.LENGTH_SHORT).show() }
+        catch(e: IOException){ Toast.makeText(context, "IO异常", Toast.LENGTH_SHORT).show() }
+    }else{ Toast.makeText(context, "空URI", Toast.LENGTH_SHORT).show() }
+}
+
+fun List<Any>.toText():String{
+    var output = ""
+    var isFirst = true
+    for(each in listIterator()){
+        if(isFirst){isFirst=false}else{output+="\n"}
+        output+=each
+    }
+    return output
+}
+
+fun Set<Any>.toText():String{
+    var output = ""
+    var isFirst = true
+    for(each in iterator()){
+        if(isFirst){isFirst=false}else{output+="\n"}
+        output+=each
+    }
+    return output
+}
+
+fun writeClipBoard(context: Context, string: String):Boolean{
+    val clipboardManager = context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+    try {
+        if(VERSION.SDK_INT>=23){
+            val hasPermission: Boolean = clipboardManager.hasPrimaryClip()
+            if(!hasPermission) {
+                val intent = Intent(android.provider.Settings.ACTION_MANAGE_WRITE_SETTINGS)
+                intent.setData(Uri.parse("package:"+context.packageName))
+                startActivity(context,intent,null)
+            }
+        }
+        clipboardManager.setPrimaryClip(ClipData.newPlainText("", string))
+    }catch(e:Exception){
+        return false
+    }
+    return true
+}