blocks|key|115157|text|//+Obtain+MotionEvent+object
long+downTime+=+SystemClock.uptimeMillis();
long+eventTime+=+SystemClock.uptimeMillis()+%2B+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);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|115158|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>// 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);
</code></pre>

blocks|key|4620996|text|这是一个干净的版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4620997|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));
}|code-block|syntax|javascript|4620998|PS:这是一个xamarin+android解决方案，但是你可以很容易地为java修改它。|4620999|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

And here is the clean version:

<pre><code>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));
}
</code></pre>

PS: This is a xamarin android solution but you can easily modify it for java

blocks|key|4621037|text|为了补充上面@bstar55的精彩答案--如果你想要创建一个“点击”事件，例如，用户点击一个视图，那么你需要模拟用户触摸屏幕，然后在短时间内移除他们的手指。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4621038|为此，您可以“发送”一个ACTION_DOWN+MotionEvent，然后在短时间内发送一个ACTION_UP+MotionEvent。|4621039|下面的示例，在Kotlin中，经过测试并可靠地工作：|4621040|+++//Create+amd+send+a+tap+event+at+the+current+target+loctaion+to+the+PhotoView
+++//From+testing+(on+an+original+Google+Pixel)+a+tap+event+needs+an+ACTION_DOWN+followed+shortly+afterwards+by
+++//an+ACTION_UP,+so+send+both+events
+++//First,+create+amd+send+the+ACTION_DOWN+MotionEvent
+++var+originalDownTime:+Long+=+SystemClock.uptimeMillis()
+++var+eventTime:+Long+=+SystemClock.uptimeMillis()+%2B+100
+++var+x+=+your_X_Value
+++var+y+=+your_Y_Value+
+++var+metaState+=+0
+++var+motionEvent+=+MotionEvent.obtain(
+++++++++++originalDownTime,
+++++++++++eventTime,
+++++++++++MotionEvent.ACTION_DOWN,
+++++++++++x,
+++++++++++y,
+++++++++++metaState
++++)
++++var+returnVal+=+yourView.dispatchTouchEvent(motionEvent)
++++Log.d(TAG,"rteurnVal:+"+%2B+returnVal)

++++//Create+amd+send+the+ACTION_UP+MotionEvent
++++eventTime=+SystemClock.uptimeMillis()+%2B+100
++++motionEvent+=+MotionEvent.obtain(
+++++++++++originalDownTime,
+++++++++++eventTime,
+++++++++++MotionEvent.ACTION_UP,
+++++++++++x,
+++++++++++y,
+++++++++++metaState
+++++)
+++++returnVal+=+yourView.dispatchTouchEvent(motionEvent)
+++++Log.d(TAG,"rteurnVal:+"+%2B+returnVal)|code-block|syntax|javascript|4621041|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

To add to the excellent answer by @bstar55 above - if what you want is to create a 'tap' event, e.g, a user tapping on a view, then you need to simulate the user touching the screen and then removing their finger in a short time frame.
To do this you 'dispatch' an ACTION_DOWN MotionEvent followed after a short time by an ACTION_UP MotionEvent.
The following example, in Kotlin, is tested and worked reliably:
<pre class="lang-js prettyprint-override"><code> //Create amd send a tap event at the current target loctaion to the PhotoView
 //From testing (on an original Google Pixel) a tap event needs an ACTION_DOWN followed shortly afterwards by
 //an ACTION_UP, so send both events
 //First, create amd send the ACTION_DOWN MotionEvent
 var originalDownTime: Long = SystemClock.uptimeMillis()
 var eventTime: Long = SystemClock.uptimeMillis() + 100
 var x = your_X_Value
 var y = your_Y_Value 
 var metaState = 0
 var motionEvent = MotionEvent.obtain(
 originalDownTime,
 eventTime,
 MotionEvent.ACTION_DOWN,
 x,
 y,
 metaState
 )
 var returnVal = yourView.dispatchTouchEvent(motionEvent)
 Log.d(TAG,&quot;rteurnVal: &quot; + returnVal)

 //Create amd send the ACTION_UP MotionEvent
 eventTime= SystemClock.uptimeMillis() + 100
 motionEvent = MotionEvent.obtain(
 originalDownTime,
 eventTime,
 MotionEvent.ACTION_UP,
 x,
 y,
 metaState
 )
 returnVal = yourView.dispatchTouchEvent(motionEvent)
 Log.d(TAG,&quot;rteurnVal: &quot; + returnVal)
</code></pre>

I would like to trigger a touch event like this:

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)

I have found some thing like this:

<pre><code>MotionEvent event = MotionEvent.obtain(downTime, eventTime, action, x, y, pressure, size, metaState, xPrecision, yPrecision, deviceId, edgeFlags);

onTouchEvent(event);
</code></pre>

However, how to emulate the above case? Do I need to create 2 event ? onTouchDown , onMove etc.... ? Thanks for helping.

How to programmatically trigger the touch event in android?

Kotlin

我想触发一个触摸事件，如下所示：首先，手指在屏幕的(0,50%)处向下触摸，然后滑动到屏幕的(50%,50%)处，然后退出(将手指移出屏幕)我发现了一些类似这样的东西：MotionEvent event = MotionEvent.obtain(downTime, eventTime, action, x, y, pr...

问如何在android中以编程方式触发触摸事件？
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