blocks|key|294009|text|如果您从ACTION_DOWN事件返回true，则表示您对该手势中的其余事件感兴趣。在这种情况下，“手势”指的是直到最终ACTION_UP或ACTION_CANCEL的所有事件。从ACTION_DOWN返回false意味着您不想要该事件，其他视图将有机会处理它。如果你有重叠的视图，这可以是一个兄弟视图。如果不是，它将冒泡到父级。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|294010|entityMap^0|4|B|J|4|1O|9|1Y|D|2I|B|2V|5|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|G|$]]

If you return <code>true</code> from an <code>ACTION_DOWN</code> event you are interested in the rest of the events in that gesture. A "gesture" in this case means all events until the final <code>ACTION_UP</code> or <code>ACTION_CANCEL</code>. Returning <code>false</code> from an <code>ACTION_DOWN</code> means you do not want the event and other views will have the opportunity to handle it. If you have overlapping views this can be a sibling view. If not it will bubble up to the parent.

blocks|key|3235568|text|来自文档：http://developer.android.com/reference/android/view/View.OnTouchListener.html#onTouch(android.view.View|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3235569|如果侦听器已使用事件，则为True；否则为false。|3235570|如果返回true，则处理该事件。如果为false，它将转到下一层。|3235571|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/view/View.OnTouchListener.html#onTouch(android.view.View),%2520android.view.MotionEvent^0|5|2V|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]]]

From the documentation : <a href="http://developer.android.com/reference/android/view/View.OnTouchListener.html#onTouch(android.view.View" rel="noreferrer">http://developer.android.com/reference/android/view/View.OnTouchListener.html#onTouch(android.view.View</a>, android.view.MotionEvent)

"True if the listener has consumed the event, false otherwise."

If you return true, the event is processed. If false, it will go to the next layer down.

blocks|key|299052|text|布尔值确定是否使用该事件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|299053|是的你说得对。如果返回false，则下一个侦听器处理该事件。如果返回true，则侦听器使用该事件，而不将其发送到下一个方法。|299054|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The boolean value determines whether the event is consumed or not.

Yes you're correct. If you return false, the next listener handles the event. If it returns true, the event is consumed by your listener and not sent to the next method.

blocks|key|3235674|text|以上所有答案都是正确的，但结果与视图是否为clickable有所不同|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3235675|示例，我有一个包含1个Button和1个TextView的LinearLayout，如下所示|3235676|<LinearLayout
++++android:id="@%2Bid/linearlayout_root"
++++xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++android:background="#0aa"
++++android:orientation="vertical">

++++<Button
++++++++android:id="@%2Bid/button_click"
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:padding="40dp"
++++++++android:text="Button+Click"
++++++++android:textSize="20sp"+/>

++++<TextView
++++++++android:id="@%2Bid/textview_click"
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:padding="40dp"
++++++++android:text="TextView+Click"
++++++++android:textSize="20sp"
++++++++android:background="#e4e4e4"
++++++++/>

</LinearLayout>|code-block|syntax|javascript|3235677|在Activity中，我有如下代码|3235678|class+MainActivity+:+AppCompatActivity()+{
++++val+TAG+=+"TAG"

++++@SuppressLint("ClickableViewAccessibility")
++++override+fun+onCreate(savedInstanceState:+Bundle?)+{
++++++++super.onCreate(savedInstanceState)
++++++++setContentView(R.layout.activity_main)

++++++++findViewById<LinearLayout>(R.id.linearlayout_root).setOnTouchListener+{+v,+event+->
++++++++++++Log.i(TAG,+"LinearLayout+onTouch+event+"+%2B+getDisplayAction(event.action))
++++++++++++false
++++++++}

++++++++findViewById<Button>(R.id.button_click).setOnTouchListener+{+v,+event+->
++++++++++++Log.i(TAG,+"Button+onTouch+event+"+%2B+getDisplayAction(event.action))
++++++++++++false
++++++++}

++++++++findViewById<TextView>(R.id.textview_click).setOnTouchListener+{+v,+event+->
++++++++++++Log.i(TAG,+"TextView+onTouch+event+"+%2B+getDisplayAction(event.action))
++++++++++++false
++++++++}
++++}

++++private+fun+getDisplayAction(action:+Int):+String+{
++++++++return+when+(action)+{
++++++++++++MotionEvent.ACTION_DOWN+->+"DOWN"
++++++++++++MotionEvent.ACTION_MOVE+->+"MOVE"
++++++++++++MotionEvent.ACTION_UP+->+"UP"
++++++++++++MotionEvent.ACTION_CANCEL+->+"CANCEL"
++++++++++++MotionEvent.ACTION_OUTSIDE+->+"OUTSIDE"
++++++++++++else+->+"UNKNOWN"
++++++++}
++++}
}|3235679|案例1+Linear+onTouch+return+**FALSE**、Button+onTouch+return+**FALSE**、TextView+onTouch+return+**FALSE**|3235680|单击按钮|BOLD|3235681|I/TAG:+Button+onTouch+eventDOWN
I/TAG:+Button+onTouch+eventMOVE
I/TAG:+Button+onTouch+eventUP|3235682|单击TextView|3235683|TAG:+TextView+onTouch+eventDOWN
TAG:+LinearLayout+onTouch+eventDOWN|3235684|单击LinearLayout|3235685|TAG:+LinearLayout+onTouch+eventDOWN|3235686|案例2+Linear+onTouch+return+**FALSE**、Button+onTouch+return+**TRUE**、TextView+onTouch+return+**TRUE**|3235687|3235688|Similar+to+case+1|3235689|3235690|TAG:+TextView+onTouch+event+DOWN
TAG:+TextView+onTouch+event+MOVE
TAG:+TextView+onTouch+event+UP|3235691|3235692|Similar+to+case+1|3235693|案例3+Linear+onTouch+return+**TRUE**、Button+onTouch+return+**FALSE**、TextView+onTouch+return+**FALSE**|3235694|3235695|Similar+to+case+1|3235696|3235697|TAG:+TextView+onTouch+event+DOWN
TAG:+LinearLayout+onTouch+event+DOWN
TAG:+LinearLayout+onTouch+event+MOVE
TAG:+LinearLayout+onTouch+event+UP|3235698|3235699|TAG:+LinearLayout+onTouch+event+DOWN
TAG:+LinearLayout+onTouch+event+MOVE
TAG:+LinearLayout+onTouch+event+UP|3235700|备注|3235701|3235702|+TextView的默认设置是not+clickable，如果我们在xml+或中设置android:clickable="true"，它将变为可点击。当我们设置textView.setOnClickListener(...)|unordered-list-item|3235703|When+|3235704|时，event+MOVE可以调用比我的日志更多的内容(这取决于您如何点击)|3235705|<代码>F257|3235706|3235707|摘要|3235708|3235709|onTouch+return+true+or+view+is+clickable，view+will+receive+trueclickable+onTouchEvent|3235710|onTouch+return+false++view+is+not+clickable，View+will+NEXT+onTouchEvent+(它的父级可能会收到)|3235711|3235712|希望它能帮上忙|3235713|DEMO|3235714|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/PhanVanLinh/AndroidTouchListener^0|L|9|0|B|6|K|8|T|C|0|0|0|0|4|V|10|V|1W|X|0|0|4|0|0|0|A|0|0|0|E|0|0|4|V|10|U|1V|W|0|0|4|0|0|0|A|0|0|0|E|0|0|4|U|Z|V|1V|X|0|0|4|0|0|0|A|0|0|0|E|0|0|0|0|1|8|F|D|16|O|28|W|12|1|0|1|2|A|1|0|0|0|0|0|7|F|4|V|9|1N|D|21|C|1N|D|21|C|0|0|K|L|1Q|0|7|F|5|Y|9|0|0|0|7|0|0|4|0|4|0|0^^$0|@$1|2|3|4|5|6|7|2O|8|@$9|2P|A|2Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|2R|8|@$9|2S|A|2T|B|C]|$9|2U|A|2V|B|C]|$9|2W|A|2X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|2Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|2Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|30|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|31|8|@$9|32|A|33|B|C]|$9|34|A|35|B|C]|$9|36|A|37|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|38|8|@$9|39|A|3A|B|U]]|D|@]|E|$]]|$1|V|3|W|5|J|7|3B|8|@]|D|@]|E|$K|L]]|$1|X|3|Y|5|6|7|3C|8|@$9|3D|A|3E|B|U]]|D|@]|E|$]]|$1|Z|3|10|5|J|7|3F|8|@]|D|@]|E|$K|L]]|$1|11|3|12|5|6|7|3G|8|@$9|3H|A|3I|B|U]]|D|@]|E|$]]|$1|13|3|14|5|J|7|3J|8|@]|D|@]|E|$K|L]]|$1|15|3|16|5|6|7|3K|8|@$9|3L|A|3M|B|C]|$9|3N|A|3O|B|C]|$9|3P|A|3Q|B|C]]|D|@]|E|$]]|$1|17|3|T|5|6|7|3R|8|@$9|3S|A|3T|B|U]]|D|@]|E|$]]|$1|18|3|19|5|J|7|3U|8|@]|D|@]|E|$K|L]]|$1|1A|3|Y|5|6|7|3V|8|@$9|3W|A|3X|B|U]]|D|@]|E|$]]|$1|1B|3|1C|5|J|7|3Y|8|@]|D|@]|E|$K|L]]|$1|1D|3|12|5|6|7|3Z|8|@$9|40|A|41|B|U]]|D|@]|E|$]]|$1|1E|3|1F|5|J|7|42|8|@]|D|@]|E|$K|L]]|$1|1G|3|1H|5|6|7|43|8|@$9|44|A|45|B|C]|$9|46|A|47|B|C]|$9|48|A|49|B|C]]|D|@]|E|$]]|$1|1I|3|T|5|6|7|4A|8|@$9|4B|A|4C|B|U]]|D|@]|E|$]]|$1|1J|3|1K|5|J|7|4D|8|@]|D|@]|E|$K|L]]|$1|1L|3|Y|5|6|7|4E|8|@$9|4F|A|4G|B|U]]|D|@]|E|$]]|$1|1M|3|1N|5|J|7|4H|8|@]|D|@]|E|$K|L]]|$1|1O|3|12|5|6|7|4I|8|@$9|4J|A|4K|B|U]]|D|@]|E|$]]|$1|1P|3|1Q|5|J|7|4L|8|@]|D|@]|E|$K|L]]|$1|1R|3|1S|5|6|7|4M|8|@]|D|@]|E|$]]|$1|1T|3|-4|5|6|7|4N|8|@]|D|@]|E|$]]|$1|1U|3|1V|5|1W|7|4O|8|@$9|4P|A|4Q|B|C]|$9|4R|A|4S|B|C]|$9|4T|A|4U|B|C]|$9|4V|A|4W|B|C]|$9|4X|A|4Y|B|U]]|D|@]|E|$]]|$1|1X|3|1Y|5|1W|7|4Z|8|@]|D|@]|E|$]]|$1|1Z|3|20|5|1W|7|50|8|@$9|51|A|52|B|C]]|D|@]|E|$]]|$1|21|3|22|5|6|7|53|8|@]|D|@]|E|$]]|$1|23|3|-4|5|6|7|54|8|@]|D|@]|E|$]]|$1|24|3|25|5|6|7|55|8|@]|D|@]|E|$]]|$1|26|3|-4|5|6|7|56|8|@]|D|@]|E|$]]|$1|27|3|28|5|1W|7|57|8|@$9|58|A|59|B|C]|$9|5A|A|5B|B|C]|$9|5C|A|5D|B|C]|$9|5E|A|5F|B|C]|$9|5G|A|5H|B|C]|$9|5I|A|5J|B|U]|$9|5K|A|5L|B|U]]|D|@]|E|$]]|$1|29|3|2A|5|1W|7|5M|8|@$9|5N|A|5O|B|U]|$9|5P|A|5Q|B|U]|$9|5R|A|5S|B|C]|$9|5T|A|5U|B|C]|$9|5V|A|5W|B|C]]|D|@]|E|$]]|$1|2B|3|-4|5|6|7|5X|8|@]|D|@]|E|$]]|$1|2C|3|2D|5|6|7|5Y|8|@$9|5Z|A|60|B|U]]|D|@]|E|$]]|$1|2E|3|2F|5|6|7|61|8|@$9|62|A|63|B|U]]|D|@$9|64|A|65|1|66]]|E|$]]|$1|2G|3|-4|5|6|7|67|8|@]|D|@]|E|$]]]|2H|$2I|$5|2J|2K|2L|E|$2M|2N]]]]

All above answer is correct but the result is different is if the View is <code>clickable</code> or not <code>clickable</code>

Example, I have a <code>LinearLayout</code> contains 1 <code>Button</code> and 1 <code>TextView</code> like this

<pre><code>&lt;LinearLayout
 android:id="@+id/linearlayout_root"
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:background="#0aa"
 android:orientation="vertical"&gt;

 &lt;Button
 android:id="@+id/button_click"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:padding="40dp"
 android:text="Button Click"
 android:textSize="20sp" /&gt;

 &lt;TextView
 android:id="@+id/textview_click"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:padding="40dp"
 android:text="TextView Click"
 android:textSize="20sp"
 android:background="#e4e4e4"
 /&gt;

&lt;/LinearLayout&gt;
</code></pre>

In Activity, I have code like

<pre><code>class MainActivity : AppCompatActivity() {
 val TAG = "TAG"

 @SuppressLint("ClickableViewAccessibility")
 override fun onCreate(savedInstanceState: Bundle?) {
 super.onCreate(savedInstanceState)
 setContentView(R.layout.activity_main)

 findViewById&lt;LinearLayout&gt;(R.id.linearlayout_root).setOnTouchListener { v, event -&gt;
 Log.i(TAG, "LinearLayout onTouch event " + getDisplayAction(event.action))
 false
 }

 findViewById&lt;Button&gt;(R.id.button_click).setOnTouchListener { v, event -&gt;
 Log.i(TAG, "Button onTouch event " + getDisplayAction(event.action))
 false
 }

 findViewById&lt;TextView&gt;(R.id.textview_click).setOnTouchListener { v, event -&gt;
 Log.i(TAG, "TextView onTouch event " + getDisplayAction(event.action))
 false
 }
 }

 private fun getDisplayAction(action: Int): String {
 return when (action) {
 MotionEvent.ACTION_DOWN -&gt; "DOWN"
 MotionEvent.ACTION_MOVE -&gt; "MOVE"
 MotionEvent.ACTION_UP -&gt; "UP"
 MotionEvent.ACTION_CANCEL -&gt; "CANCEL"
 MotionEvent.ACTION_OUTSIDE -&gt; "OUTSIDE"
 else -&gt; "UNKNOWN"
 }
 }
}
</code></pre>

<h3>Case 1 <code>Linear onTouch return **FALSE**</code>, <code>Button onTouch return **FALSE**</code>, <code>TextView onTouch return **FALSE**</code></h3>

Click on Button

<pre><code>I/TAG: Button onTouch eventDOWN
I/TAG: Button onTouch eventMOVE
I/TAG: Button onTouch eventUP
</code></pre>

Click on TextView

<pre><code>TAG: TextView onTouch eventDOWN
TAG: LinearLayout onTouch eventDOWN
</code></pre>

Click on LinearLayout

<pre><code>TAG: LinearLayout onTouch eventDOWN
</code></pre>

<h3>Case 2 <code>Linear onTouch return **FALSE**</code>, <code>Button onTouch return **TRUE**</code>, <code>TextView onTouch return **TRUE**</code></h3>

Click on Button

<pre><code>Similar to case 1
</code></pre>

Click on TextView

<pre><code>TAG: TextView onTouch event DOWN
TAG: TextView onTouch event MOVE
TAG: TextView onTouch event UP
</code></pre>

Click on LinearLayout

<pre><code>Similar to case 1
</code></pre>

<h3>Case 3 <code>Linear onTouch return **TRUE**</code>, <code>Button onTouch return **FALSE**</code>, <code>TextView onTouch return **FALSE**</code></h3>

Click on Button

<pre><code>Similar to case 1
</code></pre>

Click on TextView

<pre><code>TAG: TextView onTouch event DOWN
TAG: LinearLayout onTouch event DOWN
TAG: LinearLayout onTouch event MOVE
TAG: LinearLayout onTouch event UP
</code></pre>

Click on LinearLayout

<pre><code>TAG: LinearLayout onTouch event DOWN
TAG: LinearLayout onTouch event MOVE
TAG: LinearLayout onTouch event UP
</code></pre>

<h3>Note</h3>

<ul>
<li>Default of <code>TextView</code> is <code>not clickable</code>, it will become clickable if we set <code>android:clickable="true"</code> in xml OR when we set <code>textView.setOnClickListener(...)</code></li>
<li>When you debug, <code>event MOVE</code> can call more than my log (it base on how you tap)</li>
</ul>

<h3>Summary</h3>

<ul>
<li><code>onTouch</code> return <code>true</code> or view is <code>clickable</code>
, View will receive all <code>onTouchEvent</code></li>
<li><code>onTouch</code> return <code>false</code> and view is not <code>clickable</code>, view will not receive NEXT onTouchEvent (it's parent may receive it)</li>
</ul>

Hope it help 
<a href="https://github.com/PhanVanLinh/AndroidTouchListener" rel="nofollow noreferrer">DEMO</a>

blocks|key|294016|text|我花了将近一天的时间排除故障，但我还是发现，我的onTouch函数在使用true时被调用了2次，在使用false时被调用了1次。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|294017|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I lost nearly one day in troubleshooting, still i found out, that my onTouch function is called 2 times when using true and 1 times when using false.

blocks|key|3021186|text|来自：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3021187|注意:+Android将首先调用事件处理程序，然后从类定义中调用适当的默认处理程序。因此，从这些事件侦听器返回true将停止将事件传播到其他事件侦听器，并且还会阻止对View中的默认事件处理程序的回调。因此，一定要在返回true时终止事件。|3021188|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

From <a href="https://developer.android.com/guide/topics/ui/ui-events.html#EventHandlers" rel="nofollow noreferrer">Android-document</a>: 
 Note: Android will call event handlers first and then the appropriate default handlers from the class definition second. As such, returning true from these event listeners will stop the propagation of the event to other event listeners and will also block the callback to the default event handler in the View. So be certain that you want to terminate the event when you return true.

In android, most event listener methods return a boolean value. What is that true/false value mean ? what will it result in to the subsequence events ?

<pre><code>class MyTouchListener implements OnTouchListener {
 @Override
 public boolean onTouch(View v, MotionEvent event) {
 logView.showEvent(event);
 return true;
 }
}
</code></pre>

Regarding to the above example, if return true in onTouch method,I found every touch event(DOWN,UP,MOVE,etc) has been captured according to my logView. On the contrary,if return false, onely the DOWN event been captured. So it's seemd that return false will prevent the event to propagate. Am I correct ?

Furthermore, in a OnGestureListener, many methods have to return a boolean value too. Do they have the same meaning ?

What is meaning of boolean value returned from an event-handling method in Android

Android

在android中，大多数事件侦听器方法都返回布尔值。true/false值表示什么？它会对后续事件产生什么影响？class MyTouchListener implements OnTouchListener {    @Override    public boolean onTouch(View v, MotionEvent event) {        logView.showEvent

问Android中的事件处理方法返回的布尔值是什么意思
EN

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