Android開發-RadioButton

此次程式主要是練習RadioButton的使用方法 並且同樣的使用Toast來顯示 來方便驗證是否正確的監聽到使用者的圈選
此次用RadioGroup將同性質的按鈕歸類為同一類 來達到兩個按鈕互斥(也就是二選一)

main.xml

<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
android:id="@+id/widget0"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<RadioGroup
android:id="@+id/radiogroup"
android:layout_width="320px"
android:layout_height="430px"
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_x="0px"
android:layout_y="2px"
>
<RadioButton
android:id="@+id/maleradio"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Man"
>
</RadioButton>
<RadioButton
android:id="@+id/femaleradio"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Woman"
>
</RadioButton>
</RadioGroup>
</AbsoluteLayout>

Radiobutton.java

package com.android.demo.radiobutton;

import android.app.Activity;
import android.os.Bundle;
import android.widget.RadioGroup;
import android.widget.Toast;

public class Radiobutton extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findview();
setlistener();

}
private RadioGroup myradiogroup;
private void findview()
{
myradiogroup=(RadioGroup)findViewById(R.id.radiogroup);
}
private void setlistener()
{
myradiogroup.setOnCheckedChangeListener(changeradio);
}
//監聽radiogroup裡面的radiobutton是否有被使用者圈選
private RadioGroup.OnCheckedChangeListener changeradio=new RadioGroup.OnCheckedChangeListener()
{
public void onCheckedChanged(RadioGroup group, int checkedId)
{
//透過id來辨認不同的radiobutton
switch(checkedId)
{
case R.id.maleradio:
Toast.makeText(Radiobutton.this,"You are a Man",Toast.LENGTH_LONG).show();
break;
case R.id.femaleradio:
Toast.makeText(Radiobutton.this,"You are a Woman",Toast.LENGTH_LONG).show();
break;
default:
Toast.makeText(Radiobutton.this,"Someting error",Toast.LENGTH_LONG).show();
}
}

};
}