CheckBox

CheckBox

效果图:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".CheckboxActivity" >


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

</RelativeLayout>

public class CheckboxActivity extends Activity {


CheckBox chk;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_checkbox);

chk = (CheckBox)findViewById(R.id.chk);
chk.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton arg0, boolean arg1) {
Toast.makeText(CheckboxActivity.this, "结果值:"+arg1, Toast.LENGTH_LONG).show();
}
});
}


}