How to get notified when user copied something in android?

Question

I want to do something when user copied something to clipboard and i know there is an event in the ClipboardManager like this:

class ClipboardListener implements ClipboardManager.OnPrimaryClipChangedListener
{
   public void onPrimaryClipChanged()
   {
      // use getPrimaryClip() to get the data or simply display a toast
   }
}

ClipboardManager clipBoard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
clipBoard.addPrimaryClipChangedListener( new ClipboardListener() );

but i want to know how to get notified when my app is closed by user and then user for example copied something from another app to clipboard. Should i use Service, If so which one?

Answer 1

First, You need to add these permissions to AndroidManifest:

<uses-permission android:name="android.permission.GET_CLIPS" />
<uses-permission android:name="android.permission.READ_CLIPS" />
<uses-permission android:name="android.permission.WRITE_CLIPS" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

Then, you need to add a service like this:

public class Clipboard extends Service {
private ClipboardManager mCM;
IBinder mBinder;
int mStartMode;

 @Override
 public int onStartCommand(Intent intent, int flags, int startId) {
    mCM = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
    mCM.addPrimaryClipChangedListener(new OnPrimaryClipChangedListener() {

        @Override
        public void onPrimaryClipChanged() {
            String newClip = mCM.getText().toString();
            Toast.makeText(getApplicationContext(), newClip.toString(),  Toast.LENGTH_LONG).show();
            Log.i("LOG", newClip.toString() + "");


        }
    });
    return mStartMode;
 }


@Override
public IBinder onBind(Intent intent) {
    // TODO Auto-generated method stub
    return null;
  }
 }

Add this service in AndroidManifest:

 <service android:name=".Clipboard" />

start service at MainActivity

startService(new Intent(this, Clipboard.class));