4.6 RadioButton与RadioGroup的使用
package com.chaowen;import javax.security.auth.PrivateCredentialPermission;import android.app.Activity;import android.os.Bundle;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.TextView;public class Ex04_06_RadioGroup extends Activity { /** Called when the activity is first created. */private TextView mTextView;private RadioGroup radioGroup;private RadioButton radioButton1,radioButton2; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mTextView=(TextView)findViewById(R.id.myTextView); radioButton1=(RadioButton)findViewById(R.id.myRadioButton1); radioButton2=(RadioButton)findViewById(R.id.myRadioButton2); radioGroup=(RadioGroup)findViewById(R.id.myRadioGroup); RadioGroup.OnCheckedChangeListener mChangeRadio=new RadioGroup.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId) {if(checkedId==radioButton1.getId()){//把radioButton的内容传到mTextview1mTextView.setText(radioButton1.getText());}else if(checkedId==radioButton2.getId()){//把mRadio2的内容传到mTextView1mTextView.setText(radioButton2.getText());}}}; //RadioGroup用OnCheckedChangeListener来运行 radioGroup.setOnCheckedChangeListener(mChangeRadio); }}??main.xml
<?xml version="1.0" encoding="utf-8"?><AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" ><!--第一個TextView --> <TextView android:id="@+id/myTextView" android:layout_width="228px" android:layout_height="49px" android:text="@string/str_radio_question1" android:textSize="30sp" android:layout_x="37px" android:layout_y="3px" /> <!--建立一個RadioGroup --> <RadioGroup android:id="@+id/myRadioGroup" android:layout_width="137px" android:layout_height="216px" android:orientation="vertical" android:layout_x="3px" android:layout_y="54px" > <!--第一個RadioButton --> <RadioButton android:id="@+id/myRadioButton1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/tr_radio_op1" /> <!--第二個RadioButton --> <RadioButton android:id="@+id/myRadioButton2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/tr_radio_op2" /> </RadioGroup> </AbsoluteLayout>?
??Strings.xml
<?xml version="1.0" encoding="utf-8"?><resources> <string name="hello">Hello World, Ex04_06_RadioGroup!</string> <string name="app_name">Ex04_06_RadioGroup</string> <string name="tr_radio_op1">帥哥</string> <string name="tr_radio_op2">美女</string> <string name="str_radio_question1">請問你是？</string> </resources>?
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