نسخ النص

import android.content.ClipboardManager;
import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button=(Button)findViewById(R.id.button);
        final EditText editText=(EditText) findViewById(R.id.editText);
        button.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View view) {
                ClipboardManager ism=(ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);
                ism.setText(editText.getText().toString());
                Toast.makeText(getApplicationContext(),"ثم النسخ بنجاح",Toast.LENGTH_LONG).show();
            }
        });
    }
}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity">

    <Button        android:id="@+id/button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Button" />

    <EditText        android:textIsSelectable="true"        android:id="@+id/editText"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:ems="10"        android:inputType="textPersonName"        android:text="Name" />



</RelativeLayout>