Android的NDK多点触控? [英] android ndk multitouch?
问题描述
我写仅使用本地code的应用程序。
那么,有可能得到的多点触控事件NDK?
我觉得香港专业教育学院serched整个网络,但没有发现任何东西!
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!
有谁知道如何做到这一点?
Does anyone know how to do this?
推荐答案
是的,确实如此。
您可以检查例如名为天然活性
来看看如何将输入事件。查找 engine_handle_input
功能。 AInputEvent_getType 函数<$ C C $>返回事件的类型。如果是 AINPUT_EVENT_TYPE_MOTION
然后用 AKeyEvent_getAction
功能,您可以获取有关触摸事件的不同信息。使用 AMOTION_EVENT_ACTION_MASK
, AMOTION_EVENT_ACTION_POINTER_INDEX_MASK
, AMOTION_EVENT_ACTION_POINTER_DOWN
和 AMOTION_EVENT_ACTION_POINTER_UP
在您使用它们的Java API相同的方式枚举:<一href="http://android-developers.blogspot.com/2010/06/making-sense-of-multitouch.html">http://android-developers.blogspot.com/2010/06/making-sense-of-multitouch.html
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
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