Android基础教程(七)之----单选项框RadioGroup的综合应用
>http://www.apkbus.com/data/attachment/forum/201105/16/084107phm7nwohgi3393wz.jpghttp://www.apkbus.com/data/attachment/forum/201105/16/084106585j7xmdjx574775.jpg下面是涉及的相关代码:<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, RadioGroupDemo</string>
<string name="app_name">RadioGroupDemo</string>
<string name="tr_radio_op1">帅哥</string>
<string name="tr_radio_op2">美女</string>
<string name="str_radio_question1">请问你是？</string>
</resources>
主布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
/>
<!--建立一個RadioGroup -->
<RadioGroup
android:id="@+id/myRadioGroup"
android:layout_width="137px"
android:layout_height="216px"
android:orientation="vertical"
>
<!--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>
</LinearLayout>
最后是主控制程序
package com.android.test;
import android.app.Activity;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
public class RadioGroupDemo extends Activity
{
public TextView mTextView1;
public RadioGroup mRadioGroup1;
public RadioButton mRadio1,mRadio2;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/*取得 TextView、RadioGroup、RadioButton对象*/
mTextView1 = (TextView) findViewById(R.id.myTextView);
mRadioGroup1 = (RadioGroup) findViewById(R.id.myRadioGroup);
mRadio1 = (RadioButton) findViewById(R.id.myRadioButton1);
mRadio2 = (RadioButton) findViewById(R.id.myRadioButton2);
/*RadioGroup用OnCheckedChangeListener来运行*/
mRadioGroup1.setOnCheckedChangeListener(mChangeRadio);
}
private RadioGroup.OnCheckedChangeListener mChangeRadio = new
RadioGroup.OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(RadioGroup group, int checkedId)
{
// TODO Auto-generated method stub
if(checkedId==mRadio1.getId())
{
/*把mRadio1的内容传到mTextView1*/
mTextView1.setText(mRadio1.getText());
}
else if(checkedId==mRadio2.getId())
{
/*把mRadio2的内容传到mTextView1*/
mTextView1.setText(mRadio2.getText());
}
}
};
}
运行 ,将得到以上效果...今天就到这~</div
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