Перетаскивание текста TextView в TextView

Question

Я пытаюсь создать приложение с функцией перетаскивания, но я не могу перетащить текст из текстового поля в текстовое окно, но из текстового представления, чтобы отредактировать его текст с помощью этого кода.

@TargetApi(Build.VERSION_CODES.HONEYCOMB) 
public class MainActivity extends Activity implements OnLongClickListener { 

private TextView textView; 
private TextView textView1; 

@Override 
protected void onCreate(Bundle savedInstanceState) 
{ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    textView = (TextView) findViewById(R.id.textView); 

    myDragEventListener mDragListen = new myDragEventListener(); 

    textView.setTag("Example"); 

    textView.setOnLongClickListener(this); 

    textView1 = (TextView)findViewById(R.id.textView1); 

    textView1.setOnDragListener(mDragListen); 
} 


protected class myDragEventListener implements View.OnDragListener 
{ 

    @Override 
    public boolean onDrag(View v, DragEvent event) 
    { 
     final int action = event.getAction(); 

     switch(action) 
     { 

     case DragEvent.ACTION_DRAG_STARTED: 

      if (event.getClipDescription().hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN)) 
      { 

       return true; 
      } 

      // Returns false. During the current drag and drop operation, this View will 
      // not receive events again until ACTION_DRAG_ENDED is sent. 
      return false; 

     case DragEvent.ACTION_DRAG_ENTERED: 


      return true; 

     case DragEvent.ACTION_DRAG_LOCATION: 

      // Ignore the event 
      return true; 

     case DragEvent.ACTION_DRAG_EXITED: 


      return true; 

     case DragEvent.ACTION_DROP: 

      if(v == findViewById(R.id.textView1)) 
      { 
       TextView view = (TextView) event.getLocalState(); 
       textView1.setText(view.getText().toString()); 
      } 
      else 
      { 
       View view = (View) event.getLocalState(); 
       view.setVisibility(View.VISIBLE); 
       Toast.makeText(MainActivity.this, "You can't drop the image here", Toast.LENGTH_LONG).show(); 
       break; 
      } 
      break; 

     case DragEvent.ACTION_DRAG_ENDED: 

      v.invalidate(); 

      // Does a getResult(), and displays what happened. 
      if (event.getResult()) 
      { 
       Toast.makeText(MainActivity.this, "The drop was handled.", Toast.LENGTH_LONG).show(); 
      } 
      else 
      { 

      } 

      // returns true; the value is ignored. 
      return true; 

      // An unknown action type was received. 
     default: 
      Log.e("DragDrop Example","Unknown action type received by OnDragListener."); 
      break; 
     } 

     return false; 
    } 
} 


@Override 
public boolean onLongClick(View view) 
{ 
    TextView textView = (TextView) view; 
    ClipData.Item item = new ClipData.Item(textView.getText().toString()); 
    String[] mimeTypes = { ClipDescription.MIMETYPE_TEXT_PLAIN }; 
    ClipData data = new ClipData("", mimeTypes, item); 
    DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(view); 

    view.startDrag(data, 
      shadowBuilder,//data to be dragged 
      view, //local data about the drag and drop operation 
      0 //no needed flags 
      ); 

    return true; 
}; 
} 

Где моя ошибка?

Answer 1

Вместо longClickListener(), используйте onTouchListener(). Дайте мне знать, если он не работает

textView.setOnTouchListener(new View.OnTouchListener() { 

      @Override 
      public boolean onTouch(View v, MotionEvent arg1) { 
       // TODO Auto-generated method stub 
       ClipData data = ClipData.newPlainText("datalabel", "text"); 
       View.DragShadowBuilder shadow = new View.DragShadowBuilder(drag); 
       v.startDrag(data, shadow, null, 0); 
       return false; 
      } 
     });