Rotation Gesture Detector Only works with Single ImageView.

[quarks3k]

If I created Two ImageView instances in Single Activity and Attach Separate Instances of Rotation Gesture Detector to them the Only Rotation Listener for First ImageView Is Working Second Image's Rotation Gestures are not being able to detect .Please provide some solution to that its been 8 hours I am searching for solution.

Thanks.

[Almeros]

Did you set different OnTouchListener instances for the two ImageViews? Can't see why it wouldn't work, but also don't know how you setup your classes.

[jpjodoin]

I had a similar issue. Problem was that TwoFingerGestureDetecture.getRaw Y was returning a negative value which would discard everything in the RotateGestureDetector has sloppy gesture. Returning simply event.getRawY() has resolved my issue.

So, for those having the issue, just replace in TwoFingerGestureDetector.java:
protected static float getRawX(MotionEvent event, int pointerIndex) {
return event.getRawX();}
protected static float getRawY(MotionEvent event, int pointerIndex) {
return event.getRawY();}

[gmavenis]

I have more images on 1 Activity, but I can only touch on top image.
If I set as below, it's still not working:
android:layout_width="wrap_content"
android:layout_height="wrap_content"

I dont want process if touch outside of image. Please help.
Thanks.

[jpjodoin]

@gmavenis You can try my solution, it works for me. Let me know.

[AndroidDeveloperLB]

Did you guys solve this issue somehow?
EDIT: seems that "jpjodoin" solution works well. Can this please be an official fix and be pushed into the repo?

[AndroidDeveloperLB]

Anyway, I've made a fork that has this issue fixed:
https://github.com/AndroidDeveloperLB/android-gesture-detectors

[airtel121]

Still not worked for more then one images

[AndroidDeveloperLB]

@airtel121 Have you tried my fork ?

[airtel121]

Yes i replace TwoFingerGestureDetector.java from your fork.But only upper image is sensing the touch i set width and height to fill_parent so.
But if i set to wrap_content then image only scale inside its default location.

[airtel121]

How to archive functionality for example if i have two image inside FrameLayout having width and height set to fill_parent.
-If i touch 1st image it should drag,rotate,zoom inside whole screen and if i touch second image it should drag,rotate,zoom inside whole screen.
Note:two image is just for sample purpose there may be multiple image inside FrameLayout and can be added dynamically.

[AndroidDeveloperLB]

First, you should avoid setting them both to fill_parent. Use wrap_content or a fixed sized.
You can check out my sample here:
https://github.com/AndroidDeveloperLB/MultiTouchPlaceholderView

Not exactly what you want, but you can modify it to your needs.

[mariopce]

Fixed and tested on my fork