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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