我希望我的应用程序在单击按钮时模拟滑动触摸事件(向上/向下/向左/向右),然后TextView将向下/向上滚动。
我尝试使用Motion Event,但在分别发送ACTION_DOWN,ACTION_MOVE和ACTION_UP的3个动作事件后没有任何反应。
可以模拟滑动事件吗?
public void simulation(View view){
swipe(Direction.Bot);
}
public enum Direction {
Top, Bot, Left, Right;
}
protected void swipe(Direction direction) {
Point size = new Point();
this.getWindowManager().getDefaultDisplay().getSize(size);
int height = size.y; // height will be at top of the screen
int width = size.x; // width will be rightmost location of the screen
float xStart = size.x-50;
float xEnd = size.x-50;
float yStart = size.y-50;
float yEnd = size.y-50;
long downTime = SystemClock.uptimeMillis();
if(direction == Direction.Top || direction == Direction.Bot){
yStart = ((direction == Direction.Top) ? 50 : (height - 50));
yEnd = ((direction == Direction.Top) ? (height - 50) : 50);
}else {
xStart = ((direction == Direction.Left) ? (width - 50) : 50); // true: xStart = w-10; else: = 10
xEnd = ((direction == Direction.Left) ? 50 : (width - 50)); // true: xEnd = 10; else: = w-10
}
findViewById(R.id.my_id).dispatchTouchEvent(MotionEvent.obtain(downTime, SystemClock.uptimeMillis(),MotionEvent.ACTION_DOWN, xStart/2, yStart/2, 0));
System.out.println("ACTION_DOWN");
findViewById(R.id.my_id).dispatchTouchEvent(MotionEvent.obtain(downTime, SystemClock.uptimeMillis() + 500, MotionEvent.ACTION_MOVE, xEnd / 2, yEnd / 2, 0));
System.out.println("ACTION_MOVE");
findViewById(R.id.my_id).dispatchTouchEvent(MotionEvent.obtain(downTime, SystemClock.uptimeMillis() + 1000, MotionEvent.ACTION_UP, xEnd / 2, yEnd / 2, 0));
System.out.println("ACTION_UP");
}
答案 0 :(得分:0)
我能够在滚动活动演示中以编程方式模拟fling事件。
这是我尝试的模拟逃避事件的示例,并且有效。
蓝色虚线是我模拟的猛击事件:
class ScrollingActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_scrolling)
setSupportActionBar(toolbar)
fab.setOnClickListener { view ->
Thread(Runnable {
try {
fling(500f ,900f ,530f ,20f, 5);
// emulateMptionEvent()
} catch (e: Exception) {
}
}).start()
}
}
/** * Simulate touching a specific location and dragging to a new location.
*
* @param fromX X coordinate of the initial touch, in screen coordinates
* @param toX Xcoordinate of the drag destination, in screen coordinates
* @param fromY X coordinate of the initial touch, in screen coordinates
* @param toY Y coordinate of the drag destination, in screen coordinates
* @param stepCount How many move steps to include in the drag
*/
fun fling(
fromX: Float, toX: Float, fromY: Float,
toY: Float, stepCount: Int
) {
val inst = Instrumentation()
val downTime = SystemClock.uptimeMillis()
var eventTime = SystemClock.uptimeMillis()
var y = fromY
var x = fromX
val yStep = (toY - fromY) / stepCount
val xStep = (toX - fromX) / stepCount
var event = MotionEvent.obtain(
downTime, eventTime,
MotionEvent.ACTION_DOWN, fromX, fromY, 0
)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
event.source = InputDevice.SOURCE_TOUCHSCREEN
}
inst.sendPointerSync(event)
for (i in 0 until stepCount) {
y += yStep
x += xStep
eventTime = SystemClock.uptimeMillis()
event = MotionEvent.obtain(
downTime, eventTime + stepCount,
MotionEvent.ACTION_MOVE, x, y, 0
)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
event.source = InputDevice.SOURCE_TOUCHSCREEN
}
inst.sendPointerSync(event)
}
eventTime = SystemClock.uptimeMillis() + stepCount.toLong() + 2
event = MotionEvent.obtain(
downTime, eventTime,
MotionEvent.ACTION_UP, toX, toY, 0
)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
event.source = InputDevice.SOURCE_TOUCHSCREEN
}
inst.sendPointerSync(event)
}
}
希望对别人有帮助
答案 1 :(得分:0)
我编写了不需要Instrumentation
的扩展功能,因此它们不仅可以在androidTest
中使用,而且可以在robolectric tests
中使用,甚至可以在发行版中使用:
fun ViewGroup.performSwipeToLeft(target: View) {
this.performSwipe(target, distanceX = -this.width * .5f, distanceY = 0f)
}
fun ViewGroup.performSwipeToRight(target: View) {
this.performSwipe(target, distanceX = +this.width * .5f, distanceY = 0f)
}
fun ViewGroup.performSwipeToTop(target: View) {
this.performSwipe(target, distanceX = 0f, distanceY = -this.height * .5f)
}
fun ViewGroup.performSwipeToBottom(target: View) {
this.performSwipe(target, distanceX = 0f, distanceY = +this.width * .5f)
}
fun ViewGroup.performSwipe(target: View, distanceX: Float, distanceY: Float) {
val parentCoords = intArrayOf(0, 0)
this.getLocationInWindow(parentCoords)
val childCoords = intArrayOf(0, 0)
target.getLocationInWindow(childCoords)
val initGlobalX = childCoords[0].toFloat() + 1f
val initGlobalY = childCoords[1].toFloat() + 1f
val initLocalX = (childCoords[0] - parentCoords[0]).toFloat() + 1f
val initLocalY = (childCoords[1] - parentCoords[1]).toFloat() + 1f
val downTime = SystemClock.uptimeMillis()
var eventTime = SystemClock.uptimeMillis()
this.dispatchTouchEvent(
MotionEvent.obtain(
downTime,
eventTime,
MotionEvent.ACTION_DOWN,
initGlobalX,
initGlobalY,
0
).apply {
setLocation(initLocalX, initLocalY)
source = InputDevice.SOURCE_TOUCHSCREEN
}
)
val steps = 20
var i = 0
while (i in 0..steps) {
val globalX = initGlobalX + i * distanceX / steps
val globalY = initGlobalY + i * distanceY / steps
val localX = initLocalX + i * distanceX / steps
val localY = initLocalY + i * distanceY / steps
if (globalX <= 10f || globalY <= 10f) {
break
}
this.dispatchTouchEvent(
MotionEvent.obtain(
downTime,
++eventTime,
MotionEvent.ACTION_MOVE,
globalX,
globalY,
0
).apply {
setLocation(localX, localY)
source = InputDevice.SOURCE_TOUCHSCREEN
}
)
i++
}
this.dispatchTouchEvent(
MotionEvent.obtain(
downTime,
++eventTime,
MotionEvent.ACTION_UP,
initGlobalX + i * distanceX,
initGlobalY + i * distanceY,
0
).apply {
setLocation(initLocalX + i * distanceX, initLocalY + i * distanceY)
source = InputDevice.SOURCE_TOUCHSCREEN
}
)
}
要使用它,您需要将textView作为参数传递,并且textView的父级应该是该函数的接收者:
val textView = ...
(textView.parent as ViewGroup).performSwipeToTop(textView)
答案 2 :(得分:0)
对于 RecyclerView
,您还想看看 smoothScollBy
函数,您可以在其中传递一个 Interpolator
,如下所示。
recyclerView.smoothScrollBy(0, 500, AccelerateDecelerateInterpolator())
足够接近“滑动scoll”