Android check box source code parsing

Android is an open-source mobile phone operating system launched by Google based on the Linux platform. We once introduced the system architecture of this system in the previous article. I believe you can have a preliminary understanding of this system. Here, you can fully understand the basic concepts of the Android check box.

• Android 2.1 AIDS Nexus One vs. iPhone
• Google Android: survival or extinction
• MOTO released Android app store for China
• Android simulators correct application and installation methods
• Analysis of the basic architecture mode of Android

● Call the setChecked () method when setting the Check status of the Check box.

● When the append Android check box is selected,

1. Call the setOnCheckedChangeListener () method and pass the CompoundButton. OnCheckedChangeListener instance as a parameter.

2. In the onCheckedChanged () method of CompoundButton. OnCheckedChangeListener, obtain the instance of the selected Android check box.

Routine source code (Java)

 
 

  
  
CheckBox checkBox = (CheckBox) findViewById(id.checkBox);  
  
  
checkBox.setChecked(true);  
  
  
checkBox.setOnCheckedChangeListener(  
  
  
new CompoundButton.OnCheckedChangeListener() {  
  
  
@Override  
  
  
public void onCheckedChanged(  
  
  
CompoundButton buttonView,  
  
  
boolean isChecked) {  
  
  
CheckBox checkBox = (CheckBox) buttonView;  
  
  
Log.v("Test", String.valueOf(checkBox.getText()) +  
  
  
" is " + String.valueOf(isChecked));  
  
  
}  
  
  
}); 
 
 

Routine source code (Resource)

 
 

  
  
< CheckBox android:id="@+id/checkBox" 
  
  
android:layout_width="wrap_content" 
  
  
android:layout_height="wrap_content" 
  
  
android:text="@string/test" /> 
 
 

The basic application of the Android check box is introduced here.