状态开关旋钮(ToggleButton)

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2     xmlns:tools="http://schemas.android.com/tools" 3     android:layout_width="match_parent" 4     android:layout_height="match_parent" 5     android:orientation="vertical" 6     tools:context=".MainActivity"> 7  8     <!--定义一个ToggleButton按钮--> 9     <ToggleButton10         android:id="@+id/toggle"11         android:layout_width="wrap_content"12         android:layout_height="wrap_content"13         android:checked="true"14         android:textOff="横向排列"15         android:textOn="纵向排列" />16     <!--定义一个可以动态改变方向的线性布局-->17     <LinearLayout18         android:id="@+id/test"19         android:layout_width="match_parent"20         android:layout_height="match_parent"21         android:orientation="vertical">22 23         <Button24             android:layout_width="wrap_content"25             android:layout_height="wrap_content"26             android:text="第一个按钮"/>27         <Button28             android:layout_width="wrap_content"29             android:layout_height="wrap_content"30             android:text="第二个按钮"/>31         <Button32             android:layout_width="wrap_content"33             android:layout_height="wrap_content"34             android:text="第三个按钮"/>35     </LinearLayout>36 37 </LinearLayout>

 1 import android.app.Activity; 2 import android.os.Bundle; 3 import android.widget.CompoundButton; 4 import android.widget.LinearLayout; 5 import android.widget.ToggleButton; 6  7 public class MainActivity extends Activity { 8     private ToggleButton toggle ; 9     private LinearLayout linear ;10     @Override11     protected void onCreate(Bundle savedInstanceState) {12         super.onCreate(savedInstanceState);13         setContentView(R.layout.activity_main);14         toggle = (ToggleButton) findViewById(R.id.toggle);15         linear = (LinearLayout) findViewById(R.id.test);16         toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {17             @Override18             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {19                 if (isChecked){20                     //如果选中了,就设置垂直布局21                     linear.setOrientation(LinearLayout.VERTICAL);22                 }else {23                     //否则就水平24                     linear.setOrientation(LinearLayout.HORIZONTAL);25                 }26             }27         });28     }29 30 31 }