如何以编程方式触发android中的触摸事件？
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How to programmatically trigger the touch event in android?
提问by user782104
I would like to trigger a touch event like this:
我想触发这样的触摸事件：
First the finger is touch down at the (0,50%) of the screen and slide to the (50%,50%) of the screen, and exit (move the finger off the screen)
首先手指在屏幕的 (0,50%) 处向下触摸并滑动到屏幕的 (50%,50%)，然后退出（将手指移出屏幕）
I have found some thing like this:
我发现了这样的事情：
MotionEvent event = MotionEvent.obtain(downTime, eventTime, action, x, y, pressure, size, metaState, xPrecision, yPrecision, deviceId, edgeFlags);
onTouchEvent(event);
However, how to emulate the above case? Do I need to create 2 event ? onTouchDown , onMove etc.... ? Thanks for helping.
但是，如何模拟上述情况？我需要创建 2 个事件吗？onTouchDown ， onMove 等....？谢谢你的帮助。
回答by bstar55
// Obtain MotionEvent object
long downTime = SystemClock.uptimeMillis();
long eventTime = SystemClock.uptimeMillis() + 100;
float x = 0.0f;
float y = 0.0f;
// List of meta states found here: developer.android.com/reference/android/view/KeyEvent.html#getMetaState()
int metaState = 0;
MotionEvent motionEvent = MotionEvent.obtain(
downTime,
eventTime,
MotionEvent.ACTION_UP,
x,
y,
metaState
);
// Dispatch touch event to view
view.dispatchTouchEvent(motionEvent);
回答by SubqueryCrunch
And here is the clean version:
这是干净的版本：
public void TouchView(View view)
{
view.DispatchTouchEvent(MotionEvent.Obtain(SystemClock.UptimeMillis(), SystemClock.UptimeMillis(), (int)MotionEventActions.Down, 0, 0, 0));
view.DispatchTouchEvent(MotionEvent.Obtain(SystemClock.UptimeMillis(), SystemClock.UptimeMillis(), (int)MotionEventActions.Up, 0, 0, 0));
}
PS: This is a xamarin android solution but you can easily modify it for java
PS：这是一个 xamarin android 解决方案，但您可以轻松地为 java 修改它
