先来个例子感受一下
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent"
android:layout_height="fill_parent" tools:context=".MainActivity"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="性别:"
android:height="50px"/>
<RadioGroup
android:id="@+id/radioGroup1"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/radio0"
android:text="男"
android:checked="true"/>
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/radio1"
android:text="女"/>
</RadioGroup>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button1"
android:text="提交"/>
</LinearLayout>
有图有真相
1、在改变单选按钮组的值时获取
RadioGroup sex = (RadioGroup)findViewById(R.id.radioGroup1);
sex.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
RadioButton r = (RadioButton)findViewById(checkedId);
r.getText(); //获取被选中的单选按钮的值
}
});
2、单击其他按钮时获
final RadioGroup sex = (RadioGroup)findViewById(R.id.radioGroup1);
Button button = (Button)findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for(int i=0;i<sex.getChildCount();i++){
RadioButton r = (RadioButton)sex.getChildAt(i); //根据索引值获取单选按钮
if(r.isChecked()){ //判断单选按钮是否被选中
r.getText(); //获取被选中的单选按钮的值
break; //跳出for循环
}
}
}
});
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final RadioGroup sex = (RadioGroup)findViewById(R.id.radioGroup1);
sex.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
RadioButton r = (RadioButton)findViewById(checkedId);//获取被选择的单选按钮
Log.i("单选按钮","您选择的是:"+r.getText());
}
});
Button button = (Button)findViewById(R.id.button1); //获取提交按钮
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for(int i=0;i<sex.getChildCount();i++){
RadioButton r = (RadioButton)sex.getChildAt(i);
if(r.isChecked()){ //判断单选按钮是否被选中
Log.i("单选按钮","性别:"+r.getText());
break; //跳出for循环
}
}
}
});
}