android代码实现短按 长按

void sendTap(int displayId, float x, float y) {
final long now = SystemClock.uptimeMillis();
injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_DOWN, now, now, x, y, 1.0f,
displayId);
injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_UP, now, now, x, y, 0.0f, displayId);
}

void sendLongTouch(int displayId, float x, float y) {
int duration = 1000;
final long down = SystemClock.uptimeMillis();
injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_DOWN, down, down, x, y, 1.0f,
displayId);
long now = SystemClock.uptimeMillis();
final long endTime = down + duration;
while (now < endTime) {
final long elapsedTime = now - down;
final float alpha = (float) elapsedTime / duration;
injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_MOVE, down, now,
lerp(x, x, alpha), lerp(y, y, alpha), 1.0f, displayId);
now = SystemClock.uptimeMillis();
}
injectMotionEvent(InputDevice.SOURCE_TOUCHSCREEN, MotionEvent.ACTION_UP, down, now, x, y, 0.0f,
displayId);
}

private static final float lerp(float a, float b, float alpha) {
return (b - a) * alpha + a;
}
private static void injectMotionEvent(int inputSource, int action, long downTime, long when,
float x, float y, float pressure, int displayId) {
final float DEFAULT_SIZE = 1.0f;
final int DEFAULT_META_STATE = 0;
final float DEFAULT_PRECISION_X = 1.0f;
final float DEFAULT_PRECISION_Y = 1.0f;
final int DEFAULT_EDGE_FLAGS = 0;
MotionEvent event = MotionEvent.obtain(downTime, when, action, x, y, pressure, DEFAULT_SIZE,
DEFAULT_META_STATE, DEFAULT_PRECISION_X, DEFAULT_PRECISION_Y,
getInputDeviceId(inputSource), DEFAULT_EDGE_FLAGS);
event.setSource(inputSource);
event.setDisplayId(displayId);
InputManager.getInstance().injectInputEvent(event,
InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
}
private static int getInputDeviceId(int inputSource) {
final int DEFAULT_DEVICE_ID = 0;
int[] devIds = InputDevice.getDeviceIds();
for (int devId : devIds) {
InputDevice inputDev = InputDevice.getDevice(devId);
if (inputDev.supportsSource(inputSource)) {
return devId;
}
}
return DEFAULT_DEVICE_ID;
}

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