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Questions tagged [android-touch-event]

For questions about detecting, handling and responding to touch events in a view, in the Android platform.

Use this tag for questions related to detecting, handling and responding to touch events in a view, in the Android platform.

Documentation:

190 questions
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Preventing a NestedScrollView from scrolling parent NestedScrollView?

I have a NestedScrollView(NSVchild), inside a horizontal RecyclerView, inside another NestedScrollView(NSVparent). Inside NSVchild is a TextView with long texts. What I want to know now is, how can I prevent NSVchild from scrolling NSVparent, when…
SIMMORSAL
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android: how can I detect when user touch left 20% of view area?

In an activity by using public boolean dispatchTouchEvent(MotionEvent ev) how can I know an user is touching left Y-axis of 20% edge area? It should be generic and orientation handled. I don't want to create any hidden view on that.
DayDayHappy
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Prevent paging/swiping in cascaded ViewPager while handle scrolling of contained RecyclerView:

I have a ViewPager with 3 Fragments contained in it. One of the Fragments contains another ViewPager. which makes it a cascaded ViewPager inside a ViewPager. I need to prevent the inner ViewPager from swiping/paging while allow it to pass the scroll…
Emil Adz
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Edittext call afterTextChanged only if user modified it and not the program

I am new to android and having some trouble with this method and wondering if someone can assist with this. Question: I have an array adapter with EditText box that the user can modify in the ListView. But, I only want user modifications and not the…
Bobby_th
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How can I customize the selected tab indicator in a TabLayout?

I would like to change the selected tab indicator of a TabLayout, with a custom icon, that should follow the same behavior (as the user slides towards the next tab, the icon moves accordingly). There's no default method in the class since you can…
Gian Segato
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Android tracking touch event after new activity starts

In my application, a new activity starts on touching a button (not click) and further I don't lift the finger and wish to track the motion of touch after that in new activity. The on touch listener in second activity does not respond to this…
Swati Garg
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What causes "getHistoricalRawPointerCoords: Invalid historical index 1 for MotionEvent" on Android 13 devices?

The following crash is rare but it does happen on different devices: [libc.so] abort SIGABRT Thread: getHistoricalRawPointerCoords: Invalid historical index 1 for MotionEvent { action=UP, id[0]=0, x[0]=810.527, y[0]=1609.98,…
Hong
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Detecting touch on both child and parent simultaneously without override methods

I have a parent ViewGroup and a View added as its child. This setup resembles my original application where I have an image. If I pinched on the image, its parent should handle the pinch. I need to detect tap on the image as well. I have added…
Navaneeth
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"Parameter specified as non-null is null" when using GestureDetector.SimpleOnGestureListener() onScroll() function

I am using the GestureDetector.SimpleOnGestureListener() to react to UserGestures and expand a BottomSheet. The problem is that a small percentage of the users experience the following crash. ( stacktrace stripped to make the question more…
Ionut
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How to perform touch gestures to other apps in android

I have an android application required to perform touch gestures in entire android device and not just my own application I found these solutions: Using adb Commands ROOTing Android Device Accessibility Service in Android 7.0 or higher Is there…
ET1992
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How to catch that finger still on button if there is no movements?

I am using OnTouchListener() and I wanted to know if there are any options to catch that finger still on the button, in ACTION_MOVE mode when the finger is not moving. I mean I understand that ACTION_MOVE triggered almost constantly. But when I…
KeitL
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Propagating touch events

I have trouble implementing something like Instagram preview image feature (on long press show dialog with enlarged image). So i have Fragment with ViewPager as its child. Adapter responsible for feeding the data to theViewPager has one imageView…
RadoVidjen
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OnClickListener triggered for all Custom Views inside a FrameLayout

I am adding Custom Views to a FrameLayout programmatically: public class CustomView extends View { .... @Override protected void onDraw(Canvas canvas) { ... //Doing stuff here } } -- containerLayout = (FrameLayout)…
pbertsch
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Open an activity in a touch way android

In my first activity touching left or right opens the second activity Of the value calculation X and Y The activity is opened based on the conditions. This is part of the code case MotionEvent.ACTION_MOVE: if (v.getId() == R.id.layout3) { …
Borgo Android
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onTouch() not called for parent layout

I have a layout like this: LinearLayout RelativeLayout(id = test) FrameLayout (From a LIB. id = lib) I tried to add onTouchListener() to test but it doesn't work. I tried: @OnTouch(R.id.test) public boolean test(View v,MotionEvent e) {…
ketom
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