在还没给大家介绍单选按钮(RadioGroup)的使用,先给大家展示下效果图吧:
xml文件
<LinearLayout 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\" tools:context=\".MainActivity\" android:orientation=\"vertical\"> <TextView android:id=\"@+id/txt\" android:layout_width=\"fill_parent\" android:layout_height=\"wrap_content\" android:text=\"您的性别为\"/> <RadioGroup android:id=\"@+id/sex\" android:layout_width=\"fill_parent\" android:layout_height=\"wrap_content\"> <RadioButton android:id=\"@+id/male\" android:text=\"男\"/> <RadioButton android:id=\"@+id/female\" android:text=\"女\"/> </RadioGroup> </LinearLayout>
java文件
public class
MainActivity extends Activity {
private TextView txt=null;
private RadioGroup sex=null;
private RadioButton male=null;
private RadioButton female=null;
@Override
protected void
onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.txt=(TextView)
super.findViewById(R.id.txt);
this.sex=(RadioGroup)
super.findViewById(R.id.sex);
this.male=(RadioButton)
super.findViewById(R.id.male);
this.female=(RadioButton)
super.findViewById(R.id.female);
this.sex.setOnCheckedChangeListener(new
OnCheckedChangeListenerImp());
} private class
OnCheckedChangeListenerImp implements
OnCheckedChangeListener{
public void
onCheckedChanged(RadioGroup group, int checkedId)
{ String temp=null;
if(MainActivity.this.male.getId()==checkedId){
temp=\"男\";
} else if(MainActivity.this.female.getId()==checkedId){
temp=\"女\";
} MainActivity.this.txt.setText(\"您的性别是\"+temp);
} }
以上所述是小编给大家介绍的Android程序开发中单选按钮(RadioGroup)的使用详解,希望对大家有所帮助!
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