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POAndroid: Dragging Multiple Views
 

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    <p>I have a problem on dragging multiple Views in android. I have a two circle created using a Canvas. The problem is that I can only drag one Circle and I can't drag the other Circle. It seems that the first Circle covers the entire screen, and when I try to drag the 2nd Circle still the 1st Circle is moving. </p> <p>Here is my code. </p> <p>MainActivity.java</p> <pre><code>public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; }} </code></pre> <p>DragSource.java</p> <pre><code>public class DragSource extends View { private Paint viewPaint; private float startX; private float startY; private float touchOffsetX; private float touchOffsetY; private float x = 30; private float y = 30; private static final float RADIUS = 30; //needed for finding drop target: //the constructor: public DragSource(Context context, AttributeSet attrs) { super(context, attrs); viewPaint = new Paint(); viewPaint.setColor(Color.RED); viewPaint.setAntiAlias(true); } public boolean onTouchEvent(MotionEvent mEvent) { int eventAction = mEvent.getAction(); switch(eventAction) { case MotionEvent.ACTION_DOWN: startX = x; startY = y; touchOffsetX = mEvent.getX(); touchOffsetY = mEvent.getY(); break; case MotionEvent.ACTION_UP: break; case MotionEvent.ACTION_MOVE: case MotionEvent.ACTION_CANCEL: x = startX + mEvent.getX() - touchOffsetX; y = startY + mEvent.getY() - touchOffsetY; break; } return true; } public void draw(Canvas c) { int w = c.getWidth(); int h = c.getHeight(); c.drawCircle(x, y, RADIUS, viewPaint); this.invalidate(); }} </code></pre> <p>my activity_main.xml </p> <pre><code> &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" &gt;&lt;com.example.trialsdrag.DragSource android:layout_width="wrap_content" android:layout_height="wrap_content"/&gt;&lt;com.example.trialsdrag.DragSource android:layout_width="wrap_content" android:layout_height="wrap_content"/&gt;&lt;/RelativeLayout&gt; </code></pre>
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