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POCan't get the horizontal fling on a ScrollView within a ViewFlipper to bubble up
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copied!<p>I have a vertical ScrollView (actually, a custom ScrollView, code below) within a ViewFlipper. The ViewFlipper works fine unless I swipe horizantally over the ScrollView to flip to the previous/next view. The ScrollView itself works correctly.</p> <p>Here's the design. The green box is the ScrollView, which should be vertical. </p> <p><img src="https://i.stack.imgur.com/PqZDc.png" alt="enter image description here"></p> <p>Here's the ScrollView:</p> <pre><code>public class SCScrollView extends ScrollView { private float xDistance, yDistance, lastX, lastY; GestureDetector gestureDetector = new GestureDetector(new MyGestureDetector()); OnTouchListener gestureListener; public SCScrollView(Context context, AttributeSet attrs) { super(context, attrs); gestureListener = new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (gestureDetector.onTouchEvent(event)) { return true; } return false; } }; } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: xDistance = yDistance = 0f; lastX = ev.getX(); lastY = ev.getY(); break; case MotionEvent.ACTION_MOVE: final float curX = ev.getX(); final float curY = ev.getY(); xDistance += Math.abs(curX - lastX); yDistance += Math.abs(curY - lastY); lastX = curX; lastY = curY; if(xDistance > yDistance) return false; } return false; //return super.onInterceptTouchEvent(ev); } @Override public boolean onTouchEvent(MotionEvent event) { super.onTouchEvent(event); return gestureDetector.onTouchEvent(event); } @Override public boolean dispatchTouchEvent(MotionEvent ev){ gestureDetector.onTouchEvent(ev); super.dispatchTouchEvent(ev); return true; } /** GestureDetector used to swipe between classes */ class MyGestureDetector extends GestureDetector.SimpleOnGestureListener { @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { return false; } } } </code></pre> <p>I've been trying to base the solution on the advice here <a href="https://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling">HorizontalScrollView within ScrollView Touch Handling</a> and here <a href="https://stackoverflow.com/questions/5102993/swipe-fling-tab-changing-in-conjunction-with-scrollview">Swipe/Fling tab-changing in conjunction with ScrollView?</a> but regardless of what I return from the callbacks, I cannot get the ViewFlipper to see the fling across the ScrollView and frankly, I'm getting lost in the chain of touch and gesture listeners.</p> <p>Any thoughts?</p> <p>Thanks</p>

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