How to Handle TouchEvents for Child View(CustomView) in Parent View (ScrollView)?

Question

In my app i am using ScrollView for scrolling the ImageView, and i will add one customview dynamically to that ScrollView overlay of ImageView, i have onTouch events for customview. after adding to the scroll view i am not able to use the touch listeners of customview, still scrollview was working on that.

how to stop the scrollview touch listeners, and how to enable our custom view touch listeners..

ok, this is my requirement: ImageView overlay CustomView for paint using finger, and scroll the image if it is larger than physical display. how to solve this. — RajaReddy PolamReddy, Sep 13 '11 at 05:55
@Balaji, is it possible or not to add a CustomView with touch listeners as a ScrollView Child.. — RajaReddy PolamReddy, Sep 13 '11 at 07:06
In question you are saying ScrollView as Parent and in above comment as Child?? — Balaji Khadake, Sep 13 '11 at 07:52

score 0 · Accepted Answer · edited May 23 '17 at 11:47

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I suggest you not to go with ScrollView. Simply add your custom view in LinearLayout and implement OnGestureListener and then using GestureDetector you can able to listen all events(like onDown(),onFling(),onScroll(),onSingleTapUp(),onDown(),etc). You can sense scroll magnitudes and then by using scrollBy() method you can scroll your image(custom view). For more detilas you can refer following posts: Smooth scrolling in Android

edited May 23 '17 at 11:47

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answered Sep 13 '11 at 07:39

Balaji Khadake

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i have one more solution for scrolling by using onTouchListeners, but problem is i am not able to synchronous scrolling of imageview and customview. if i scroll imageview, not able to scroll the customview with same distance from x and y. – RajaReddy PolamReddy Sep 13 '11 at 08:54

How to Handle TouchEvents for Child View(CustomView) in Parent View (ScrollView)?

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