title: Detect intersection between two ImageView
body: <p>I have two ImageViews and I want to detect the intersection between the two images. So I decided to find a solution online, I'm using getDrawingRect to draw a rectangle, wrapping with the ImageView. However, I have a problem when I run the codes. Both imageViews don't get intersect but Rect.Intersect return true. Always true, no matter they got intersect or not.
  Below is my codes.</p>
  
  <p><strong>Intersection between two images</strong></p>
  
  <pre><code>Rect rc1 = new Rect();
  rc1.left = arrow.getLeft();
  rc1.top = arrow.getTop();
  rc1.bottom = arrow.getBottom();
  rc1.right = arrow.getRight();
  arrow.getDrawingRect(rc1);
  
  Rect rc2 = new Rect();
  rc2.left = view.getLeft();
  rc2.top = view.getTop();
  rc2.bottom = view.getBottom();
  rc2.right = view.getRight();
  view.getDrawingRect(rc2);
  
  if (Rect.intersects(rc1,rc2))
  {//intersect!}
  else{//not intersect}
  </code></pre>
  
  <p><strong>First ImageView</strong></p>
  
  <pre><code>&lt;ImageView
  android:id="@+id/needle"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_alignTop="@+id/spinnerFrame"
  android:layout_centerHorizontal="true"
  android:src="@drawable/arrow_top" /&gt;
  </code></pre>
  
  <p><strong>Second ImageView</strong></p>
  
  <pre><code>&lt;ImageView
  android:id="@+id/letter_a"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:layout_below="@+id/needle"
  android:layout_marginLeft="-10dp"
  android:layout_marginTop="-10dp"
  android:layout_toRightOf="@+id/needle"
  android:scaleType="matrix"
  android:src="@drawable/letter_a" /&gt;
  </code></pre>