drag方法源码实现如下:
- public void drag(float fromX, float toX, float fromY, float toY,
- int stepCount) {
- long downTime = SystemClock.uptimeMillis();
- long eventTime = SystemClock.uptimeMillis();
- float y = fromY;
- float x = fromX;
- float yStep = (toY - fromY) / stepCount;
- float xStep = (toX - fromX) / stepCount;
- MotionEvent event = MotionEvent.obtain(downTime, eventTime,MotionEvent.ACTION_DOWN, fromX, fromY, 0);
- try {
- inst.sendPointerSync(event);
- } catch (SecurityException ignored) {}
- for (int i = 0; i < stepCount; ++i) {
- y += yStep;
- x += xStep;
- eventTime = SystemClock.uptimeMillis();
- event = MotionEvent.obtain(downTime, eventTime,MotionEvent.ACTION_MOVE, x, y, 0);
- try {
- inst.sendPointerSync(event);
- } catch (SecurityException ignored) {}
- }
- eventTime = SystemClock.uptimeMillis();
- event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_UP,toX, toY, 0);
- try {
- inst.sendPointerSync(event);
- } catch (SecurityException ignored) {}
- }
可以看出其实是通过MotionEvent的ACTION_DOWN模拟屏幕按下操 作,ACTION_MOVE模拟手势在屏幕上滑动,ACTION_UP模拟手势离开屏幕,从而完成整个拖动过程,而且其实robotium中的各种点击类 方法也都是通过模拟不同的手势完成的。
因此要想完成长按并拖动的操作,只要在ACTION_DOWN之后,停留一段时间即可模拟长按操作。
- /**
- * 实现将一个视图拖动到另一个视图所在的位置
- * @param viewFrom 起始View
- * @param viewTo 终点View
- * @throws Exception
- */
- public void clickLongAndDrag(View viewFrom,View viewTo) throws Exception {
- //获得视图View中手机屏幕上的绝对x、y坐标
- final int[] location = new int[2];
- final int[] location2 = new int[2];
- viewFrom.getLocationOnScreen(location);
- viewTo.getLocationOnScreen(location2);
- float xStart=location[0];
- float yStart=location[1];
- float xStop=location2[0];
- float yStop=location2[1];
- Log.i(TAG, "xStart:"+String.valueOf(xStart));
- Log.i(TAG, "yStart:"+String.valueOf(yStart));
- Log.i(TAG, "xStop:"+String.valueOf(xStop));
- Log.i(TAG, "yStop:"+String.valueOf(yStop));
- long downTime = SystemClock.uptimeMillis();
- long eventTime = SystemClock.uptimeMillis();
- try{
- MotionEvent event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_DOWN, xStart+10f, yStart+10f, 0);
- inst.sendPointerSync(event);
- //event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_MOVE, xStart+10f+1.0f, yStart+10f+1.0f, 0);
- //inst.sendPointerSync(event);
- //Thread.sleep(1000);
- //延迟一秒,模拟长按操作
- eventTime = SystemClock.uptimeMillis() + 1000;
- //xStop加了10点坐标,获得的View坐标需根据应用实际情况稍做一点调整
- event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_MOVE, xStop+10f, yStop+50f, 0);
- inst.sendPointerSync(event);
- eventTime = SystemClock.uptimeMillis() + 1000;
- //又再小小移动了一次,不这么做的话可以无法激活被测应用状态,导致View移动后又回复到原来位置
- event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_MOVE, xStop+10f, yStop+10f, 0);
- inst.sendPointerSync(event);
- eventTime = SystemClock.uptimeMillis() + 1000;
- event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_UP, xStop+10f, yStop+10f, 0);
- inst.sendPointerSync(event);
- }catch (Exception ignored) {
- // Handle exceptions if necessary
- }
- }
来源: http://www.phpxs.com/code/1002335/