blocks|key|315319|text|开关继承了CompoundButton的属性，所以我推荐使用OnCheckedChangeListener|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|315320|mySwitch.setOnCheckedChangeListener(new+CompoundButton.OnCheckedChangeListener()+{
++++public+void+onCheckedChanged(CompoundButton+buttonView,+boolean+isChecked)+{
++++++++//+do+something,+the+isChecked+will+be
++++++++//+true+if+the+switch+is+in+the+On+position
++++}
});|code-block|syntax|javascript|315321|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/widget/CompoundButton.OnCheckedChangeListener.html^0|5|E|U|N|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Switch inherits <code>CompoundButton</code>'s attributes, so I would recommend the <a href="http://developer.android.com/reference/android/widget/CompoundButton.OnCheckedChangeListener.html" rel="noreferrer">OnCheckedChangeListener</a>

<pre><code>mySwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 // do something, the isChecked will be
 // true if the switch is in the On position
 }
});
</code></pre>

blocks|key|315331|text|使用以下代码段通过XML将开关添加到布局中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|315332|<Switch
+++++android:id="@%2Bid/on_off_switch"
+++++android:layout_width="wrap_content"
+++++android:layout_height="wrap_content"
+++++android:textOff="OFF"
+++++android:textOn="ON"/>|code-block|syntax|javascript|315333|然后在活动的onCreate方法中，获取对开关的引用并设置其OnCheckedChangeListener：|315334|Switch+onOffSwitch+=+(Switch)++findViewById(R.id.on_off_switch);+
onOffSwitch.setOnCheckedChangeListener(new+CompoundButton.OnCheckedChangeListener()+{

@Override
public+void+onCheckedChanged(CompoundButton+buttonView,+boolean+isChecked)+{
++++Log.v("Switch+State=",+""%2BisChecked);
}+++++++

});|315335|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Use the following snippet to add a Switch to your layout via XML:

<pre><code>&lt;Switch
 android:id="@+id/on_off_switch"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:textOff="OFF"
 android:textOn="ON"/&gt;
</code></pre>

Then in your Activity's onCreate method, get a reference to your Switch and set its OnCheckedChangeListener:

<pre><code>Switch onOffSwitch = (Switch) findViewById(R.id.on_off_switch); 
onOffSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 Log.v("Switch State=", ""+isChecked);
} 

});
</code></pre>

blocks|key|315375|text|Switch小部件的布局如下所示。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|315376|<LinearLayout
++++android:layout_width="match_parent"
++++android:layout_height="wrap_content"
++++android:orientation="vertical">
++++<Switch
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:layout_marginRight="20dp"
++++++++android:gravity="right"
++++++++android:text="All"
++++++++android:textStyle="bold"
++++++++android:textColor="@color/black"
++++++++android:textSize="20dp"
++++++++android:id="@%2Bid/list_toggle"+/>
</LinearLayout>|code-block|syntax|javascript|315377|在Activity类中，您可以通过两种方式进行编码。这取决于您可以编写代码的用途。|315378|第一种方法|315379|public+class+ActivityClass+extends+Activity+implements+CompoundButton.OnCheckedChangeListener+{
Switch+list_toggle;
@Override
protected+void+onCreate(Bundle+savedInstanceState)+{
++++super.onCreate(savedInstanceState);
++++setContentView(R.layout.return_vehicle);

++++list_toggle=(Switch)findViewById(R.id.list_toggle);
++++list_toggle.setOnCheckedChangeListener(this);
++++}
}

public+void+onCheckedChanged(CompoundButton+buttonView,boolean+isChecked)+{
++++if(isChecked)+{
++++++++list_toggle.setText("Only+Today's");++//To+change+the+text+near+to+switch
++++++++Log.d("You+are+:",+"Checked");
++++}
++++else+{
++++++++list_toggle.setText("All+List");+++//To+change+the+text+near+to+switch
++++++++Log.d("You+are+:",+"+Not+Checked");
++++}
}|315380|第二种方式|315381|public+class+ActivityClass+extends+Activity+{
Switch+list_toggle;
@Override
protected+void+onCreate(Bundle+savedInstanceState)+{
++++super.onCreate(savedInstanceState);
++++setContentView(R.layout.return_vehicle);

++++list_toggle=(Switch)findViewById(R.id.list_toggle);
++++list_toggle.setOnCheckedChangeListener(new+CompoundButton.OnCheckedChangeListener()+{
+++++++@Override
+++++++public+void+onCheckedChanged(CompoundButton+buttonView,+boolean+isChecked)+{
++++++++++if(isChecked)+{
+++++++++++++list_toggle.setText("Only+Today's");++//To+change+the+text+near+to+switch
+++++++++++++Log.d("You+are+:",+"Checked");
++++++++++}
++++++++++else+{
+++++++++++++list_toggle.setText("All+List");++//To+change+the+text+near+to+switch
+++++++++++++Log.d("You+are+:",+"+Not+Checked");
++++++++++}
+++++++}+++++++
+++++});
+++}
}|315382|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

The layout for Switch widget is something like this.

<pre><code>&lt;LinearLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="vertical"&gt;
 &lt;Switch
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginRight="20dp"
 android:gravity="right"
 android:text="All"
 android:textStyle="bold"
 android:textColor="@color/black"
 android:textSize="20dp"
 android:id="@+id/list_toggle" /&gt;
&lt;/LinearLayout&gt;
</code></pre>

In the Activity class, you can code by two ways. Depends on the use you can code.

First Way

<pre><code>public class ActivityClass extends Activity implements CompoundButton.OnCheckedChangeListener {
Switch list_toggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.return_vehicle);

 list_toggle=(Switch)findViewById(R.id.list_toggle);
 list_toggle.setOnCheckedChangeListener(this);
 }
}

public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
 if(isChecked) {
 list_toggle.setText("Only Today's"); //To change the text near to switch
 Log.d("You are :", "Checked");
 }
 else {
 list_toggle.setText("All List"); //To change the text near to switch
 Log.d("You are :", " Not Checked");
 }
}
</code></pre>

Second way 

<pre><code>public class ActivityClass extends Activity {
Switch list_toggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.return_vehicle);

 list_toggle=(Switch)findViewById(R.id.list_toggle);
 list_toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 @Override
 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 if(isChecked) {
 list_toggle.setText("Only Today's"); //To change the text near to switch
 Log.d("You are :", "Checked");
 }
 else {
 list_toggle.setText("All List"); //To change the text near to switch
 Log.d("You are :", " Not Checked");
 }
 } 
 });
 }
}
</code></pre>

blocks|key|532421|text|对于那些使用Kotlin的用户，您可以为交换机(在本例中具有ID+mySwitch)设置一个监听器，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|532422|++++mySwitch.setOnCheckedChangeListener+{+_,+isChecked+->
+++++++++//+do+whatever+you+need+to+do+when+the+switch+is+toggled+here
++++}|code-block|syntax|javascript|532423|如果开关当前处于选中状态(打开)，则isChecked为true，否则为false。|532424|entityMap^0|X|8|0|0|I|9|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

For those using Kotlin, you can set a listener for a switch (in this case having the ID <code>mySwitch</code>) as follows:

<pre><code> mySwitch.setOnCheckedChangeListener { _, isChecked -&gt;
 // do whatever you need to do when the switch is toggled here
 }
</code></pre>

<code>isChecked</code> is true if the switch is currently checked (ON), and false otherwise.

blocks|key|532472|text|对于Switch+Checked+Change事件，可以使用DataBinding和ViewModel|type|unstyled|depth|inlineStyleRanges|entityRanges|data|532473|<layout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:app="http://schemas.android.com/apk/res-auto"
++++xmlns:tools="http://schemas.android.com/tools">

++++<data>

++++++++<variable
++++++++++++++++name="viewModel"
++++++++++++++++type="com.example.ui.ViewModel"+/>
++++</data>
++++<Switch
++++++++++++android:id="@%2Bid/on_off_switch"
++++++++++++android:layout_width="wrap_content"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:onCheckedChanged="@{(button,+on)+->+viewModel.onCheckedChange(on)}"
+++++/>|code-block|syntax|javascript|532474|​|532475|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|$]]

You can use DataBinding and ViewModel for Switch Checked Change event

<pre><code>&lt;layout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"&gt;

 &lt;data&gt;

 &lt;variable
 name="viewModel"
 type="com.example.ui.ViewModel" /&gt;
 &lt;/data&gt;
 &lt;Switch
 android:id="@+id/on_off_switch"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:onCheckedChanged="@{(button, on) -&gt; viewModel.onCheckedChange(on)}"
 /&gt;
</code></pre>

blocks|key|315557|text|我的解决方案是使用SwitchCompat和Kotlin。在我的情况下，只有当用户通过UI触发更改时，我才需要对更改做出反应。实际上，我的交换机对LiveData做出反应，这使得setOnClickListener和setOnCheckedChangeListener都不可用。setOnClickListener实际上对用户交互做出了正确的反应，但如果用户将拇指拖过开关，则不会触发。如果以编程方式(例如，由观察者)切换开关，也会触发另一端的setOnCheckedChangeListener。现在在我的例子中，开关出现在两个片段上，所以在某些情况下，onRestoreInstanceState会用一个旧的值覆盖正确的值来触发开关。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|315558|因此，我查看了SwitchCompat的代码，并且能够成功地模仿它的行为来区分单击和拖动，并使用它来构建一个自定义的触摸侦听器，它的工作方式应该是这样的。我们开始吧：|315559|/**
+*+This+function+calls+the+lambda+function+passed+with+the+right+value+of+isChecked
+*+when+the+switch+is+tapped+with+single+click+isChecked+is+relative+to+the+current+position+so+we+pass+!isChecked
+*+when+the+switch+is+dragged+instead,+the+position+of+the+thumb+centre+where+the+user+leaves+the
+*+thumb+is+compared+to+the+middle+of+the+switch,+and+we+assume+that+left+means+false,+right+means+true
+*+(there+is+no+rtl+or+vertical+switch+management)
+*+The+behaviour+is+extrapolated+from+the+SwitchCompat+source+code
+*/
class+SwitchCompatTouchListener(private+val+v:+SwitchCompat,+private+val+lambda:+(Boolean)->Unit)+:++View.OnTouchListener+{
++++companion+object+{
++++++++private+const+val+TOUCH_MODE_IDLE+=+0
++++++++private+const+val+TOUCH_MODE_DOWN+=+1
++++++++private+const+val+TOUCH_MODE_DRAGGING+=+2
++++}

++++private+val+vc+=+ViewConfiguration.get(v.context)
++++private+val+mScaledTouchSlop+=+vc.scaledTouchSlop
++++private+var+mTouchMode+=+0
++++private+var+mTouchX+=+0f
++++private+var+mTouchY+=+0f

++++/**
+++++*+@return+true+if+(x,+y)+is+within+the+target+area+of+the+switch+thumb
+++++*+x,y+and+rect+are+in+view+coordinates,+0,0+is+top+left+of+the+view
+++++*/
++++private+fun+hitThumb(x:+Float,+y:+Float):+Boolean+{
++++++++val+rect+=+v.thumbDrawable.bounds
++++++++return+x+>=+rect.left+&&+x+<=+rect.right+&&+y+>=+rect.top+&&+y+<=+rect.bottom
++++}

++++override+fun+onTouch(view:+View,+event:+MotionEvent):+Boolean+{
++++++++if+(view+==+v)+{
++++++++++++when+(MotionEventCompat.getActionMasked(event))+{
++++++++++++++++MotionEvent.ACTION_DOWN+->+{
++++++++++++++++++++val+x+=+event.x
++++++++++++++++++++val+y+=+event.y
++++++++++++++++++++if+(v.isEnabled+&&+hitThumb(x,+y))+{
++++++++++++++++++++++++mTouchMode+=+TOUCH_MODE_DOWN;
++++++++++++++++++++++++mTouchX+=+x;
++++++++++++++++++++++++mTouchY+=+y;
++++++++++++++++++++}
++++++++++++++++}
++++++++++++++++MotionEvent.ACTION_MOVE+->+{
++++++++++++++++++++val+x+=+event.x
++++++++++++++++++++val+y+=+event.y
++++++++++++++++++++if+(mTouchMode+==+TOUCH_MODE_DOWN+&&
++++++++++++++++++++++++(abs(x+-+mTouchX)+>+mScaledTouchSlop+%7C%7C+abs(y+-+mTouchY)+>+mScaledTouchSlop)
++++++++++++++++++++)
++++++++++++++++++++++++mTouchMode+=+TOUCH_MODE_DRAGGING;
++++++++++++++++}
++++++++++++++++MotionEvent.ACTION_UP,
++++++++++++++++MotionEvent.ACTION_CANCEL+->+{
++++++++++++++++++++if+(mTouchMode+==+TOUCH_MODE_DRAGGING)+{
++++++++++++++++++++++++val+r+=+v.thumbDrawable.bounds
++++++++++++++++++++++++if+(r.left+%2B+r.right+<+v.width)+lambda(false)
++++++++++++++++++++++++else+lambda(true)
++++++++++++++++++++}+else+lambda(!v.isChecked)
++++++++++++++++++++mTouchMode+=+TOUCH_MODE_IDLE;
++++++++++++++++}
++++++++++++}
++++++++}
++++++++return+v.onTouchEvent(event)
++++}
}|code-block|syntax|javascript|315560|使用方法：|315561|实际的触摸监听器接受带有要执行的代码的lambda：|315562|myswitch.setOnTouchListener(
++++SwitchCompatTouchListener(myswitch)+{
++++++++//+here+goes+all+the+code+for+your+callback,+in+my+case
++++++++//+i+called+a+service+which,+when+successful,+in+turn+would+
++++++++//+update+my+liveData+
++++++++viewModel.sendCommandToMyService(it)+
++++}
)|315563|为了完整起见，下面是状态switchstate的观察者(如果您有的话)的样子：|315564|switchstate.observe(this,+Observer+{
++++myswitch.isChecked+=+it
})|315565|entityMap^0|9|C|21|8|2H|I|30|Q|3V|I|66|Q|0|0|0|0|0|0|C|B|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1B|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1C|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1D|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1E|8|@]|D|@]|E|$]]|$1|Q|3|R|5|J|7|1F|8|@]|D|@]|E|$K|L]]|$1|S|3|T|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|U|3|V|5|J|7|1J|8|@]|D|@]|E|$K|L]]|$1|W|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|X|$]]

My solution, using a <code>SwitchCompat</code> and Kotlin. In my situation, i needed to react to a change only if the user triggered it through the UI. In fact, my switch reacts to a <code>LiveData</code>, and this made both <code>setOnClickListener</code> and <code>setOnCheckedChangeListener</code> unusable. <code>setOnClickListener</code> in fact reacts correctly to user interaction, but it's not triggered if the user drags the thumb across the switch. <code>setOnCheckedChangeListener</code> on the other end is triggered also if the switch is toggled programmatically (for example by an observer). Now in my case the switch was present on two fragments, and so onRestoreInstanceState would trigger in some cases the switch with an old value overwriting the correct value.

So, i looked at the code of SwitchCompat, and was able to mimic it's behaviour successfully in distinguishing click and drag and used that to build a custom touchlistener that works as it should. Here we go:

<pre><code>/**
 * This function calls the lambda function passed with the right value of isChecked
 * when the switch is tapped with single click isChecked is relative to the current position so we pass !isChecked
 * when the switch is dragged instead, the position of the thumb centre where the user leaves the
 * thumb is compared to the middle of the switch, and we assume that left means false, right means true
 * (there is no rtl or vertical switch management)
 * The behaviour is extrapolated from the SwitchCompat source code
 */
class SwitchCompatTouchListener(private val v: SwitchCompat, private val lambda: (Boolean)-&gt;Unit) : View.OnTouchListener {
 companion object {
 private const val TOUCH_MODE_IDLE = 0
 private const val TOUCH_MODE_DOWN = 1
 private const val TOUCH_MODE_DRAGGING = 2
 }

 private val vc = ViewConfiguration.get(v.context)
 private val mScaledTouchSlop = vc.scaledTouchSlop
 private var mTouchMode = 0
 private var mTouchX = 0f
 private var mTouchY = 0f

 /**
 * @return true if (x, y) is within the target area of the switch thumb
 * x,y and rect are in view coordinates, 0,0 is top left of the view
 */
 private fun hitThumb(x: Float, y: Float): Boolean {
 val rect = v.thumbDrawable.bounds
 return x &gt;= rect.left &amp;&amp; x &lt;= rect.right &amp;&amp; y &gt;= rect.top &amp;&amp; y &lt;= rect.bottom
 }

 override fun onTouch(view: View, event: MotionEvent): Boolean {
 if (view == v) {
 when (MotionEventCompat.getActionMasked(event)) {
 MotionEvent.ACTION_DOWN -&gt; {
 val x = event.x
 val y = event.y
 if (v.isEnabled &amp;&amp; hitThumb(x, y)) {
 mTouchMode = TOUCH_MODE_DOWN;
 mTouchX = x;
 mTouchY = y;
 }
 }
 MotionEvent.ACTION_MOVE -&gt; {
 val x = event.x
 val y = event.y
 if (mTouchMode == TOUCH_MODE_DOWN &amp;&amp;
 (abs(x - mTouchX) &gt; mScaledTouchSlop || abs(y - mTouchY) &gt; mScaledTouchSlop)
 )
 mTouchMode = TOUCH_MODE_DRAGGING;
 }
 MotionEvent.ACTION_UP,
 MotionEvent.ACTION_CANCEL -&gt; {
 if (mTouchMode == TOUCH_MODE_DRAGGING) {
 val r = v.thumbDrawable.bounds
 if (r.left + r.right &lt; v.width) lambda(false)
 else lambda(true)
 } else lambda(!v.isChecked)
 mTouchMode = TOUCH_MODE_IDLE;
 }
 }
 }
 return v.onTouchEvent(event)
 }
}
</code></pre>

How to use it:

the actual touch listener that accepts a lambda with the code to execute:

<pre><code>myswitch.setOnTouchListener(
 SwitchCompatTouchListener(myswitch) {
 // here goes all the code for your callback, in my case
 // i called a service which, when successful, in turn would 
 // update my liveData 
 viewModel.sendCommandToMyService(it) 
 }
)
</code></pre>

For the sake of completeness, this is how the observer for the state <code>switchstate</code> (if you have it) looked like:

<pre><code>switchstate.observe(this, Observer {
 myswitch.isChecked = it
})
</code></pre>

blocks|key|532586|text|在Kotlin：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|532587|++++++++switch_button.setOnCheckedChangeListener+{+buttonView,+isChecked+->
++++++++if+(isChecked)+{
++++++++++++//+The+switch+enabled
++++++++++++text_view.text+=+"Switch+on"

++++++++}+else+{
++++++++++++//+The+switch+disabled
++++++++++++text_view.text+=+"Switch+off"

++++++++}
++++}|code-block|syntax|javascript|532588|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In Kotlin:

<pre><code> switch_button.setOnCheckedChangeListener { buttonView, isChecked -&gt;
 if (isChecked) {
 // The switch enabled
 text_view.text = "Switch on"

 } else {
 // The switch disabled
 text_view.text = "Switch off"

 }
 }
</code></pre>

I would like to implement a switch button, android.widget.Switch (available from API v.14).

<pre><code>&lt;Switch
 android:id="@+id/switch1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Switch" /&gt;
</code></pre>

But I'm not sure how to add an event listener for the button. Should it be an "onClick" listener? And how would I know if it is toggled "on" or not?

android.widget.Switch - on/off event listener?

Kotlin

我想实现一个切换按钮，android.widget.Switch (可从APIv.14获得)。<Switch android:id="@+id/switch1" android:layout_width="wrap_content" android:layout_height="wrap_conten...

问android.widget.Switch -开/关事件监听器？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问android.widget.Switch -开/关事件监听器？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问android.widget.Switch -开/关事件监听器？
EN