im writing an application that uses only native code.
So is it possible to get multitouch events in ndk?
I feel like ive serched the whole web, but without finding anything!
Does anyone know how to do this?
You can react to touch events in your custom views and your activities. Android supports multiple pointers, e.g. fingers which are interacting with the screen. The base class for touch support is the MotionEvent class which is passed to Views via the onTouchEvent() method. you override the onTouchEvent() method.
When multiple pointers touch the screen at the same time, the system generates the following touch events: ACTION_DOWN —For the first pointer that touches the screen. This starts the gesture. The pointer data for this pointer is always at index 0 in the MotionEvent .
Yes, it is.
You can check example called native-activity
to see how to get input events. Look for engine_handle_input
function. AInputEvent_getType
function returns type of event. If it is AINPUT_EVENT_TYPE_MOTION
then using AKeyEvent_getAction
function you can get different information about touch event. Use the AMOTION_EVENT_ACTION_MASK
, AMOTION_EVENT_ACTION_POINTER_INDEX_MASK
, AMOTION_EVENT_ACTION_POINTER_DOWN
and AMOTION_EVENT_ACTION_POINTER_UP
enums in same way you use them in Java API: http://android-developers.blogspot.com/2010/06/making-sense-of-multitouch.html
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With