Android: ScrollView in flipper

Posted by Manu on Stack Overflow See other posts from Stack Overflow or by Manu
Published on 2010-06-13T14:19:28Z Indexed on 2010/06/13 14:22 UTC
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I have a flipper:

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/ParentLayout"
    xmlns:android="http://schemas.android.com/apk/res/android" style="@style/MainLayout" >
            <LinearLayout android:id="@+id/FlipperLayout" style="@style/FlipperLayout">
                <ViewFlipper android:id="@+id/viewflipper" style="@style/ViewFlipper">
                    <!--adding views to ViewFlipper-->
                    <include layout="@layout/home1" android:layout_gravity="center_horizontal" />
                    <include layout="@layout/home2" android:layout_gravity="center_horizontal" />
                </ViewFlipper>
            </LinearLayout>
</LinearLayout>

The first layout,home1, consists of a scroll view. What should I do to distinguish between the flipping gesture and the scrolling? Presently:

  • if I remove the scroll view, I can swipe across
  • if I add the scroll view, I can only scroll.

I saw a suggestion that I should override onInterceptTouchEvent(MotionEvent), but I do not know how to do this. My code, at this moment, looks like this:

public class HomeActivity extends Activity {
-- declares
@Override
public void onCreate(Bundle savedInstanceState) {
    -- declares & preliminary actions

    LinearLayout layout = (LinearLayout) findViewById(R.id.ParentLayout);
    layout.setOnTouchListener(new OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
            if (gestureDetector.onTouchEvent(event)) {
                return true;
            }
            return false;
        }});

@Override 
public boolean onTouchEvent(MotionEvent event) { 
    gestureDetector.onTouchEvent(event); 
    return true;
    }
class MyGestureDetector extends SimpleOnGestureListener {
    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
    // http://www.codeshogun.com/blog/2009/04/16/how-to-implement-swipe-action-in-android/
    }
}

}

Can anybody please guide me in the right direction?

Thank you.

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