public RadioGroup mRadioGroup1;
public RadioButton mRadio1, mRadio2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRadioGroup1 = (RadioGroup) findViewById(R.id.gendergroup);
mRadio1 = (RadioButton) findViewById(R.id.girl);
mRadio2 = (RadioButton) findViewById(R.id.boy);
mRadioGroup1.setOnCheckedChangeListener(radiogpchange);
}
private RadioGroup.OnCheckedChangeListener radiogpchange = new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == mRadio1.getId()) {
Toast.makeText(getApplicationContext(), "女孩", 1).show();
} else if (checkedId == mRadio2.getId()) {
Toast.makeText(getApplicationContext(), "男孩", 1).show();
}
}
};
}
RadioButton:就像是C#中的Radio控件，可以为控件设置Group，每个Group中的项只能选择一项；
android:id="@+id/gendergroup"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<RadioButton
android:id="@+id/girl"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/girl" />
<RadioButton
android:id="@+id/boy"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/boy" />
</RadioGroup>