Android開發-Checkbox

這次的程式主要是練習Checkbox的使用方法 並且同樣和上篇一樣 搭配Toast來顯示

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"
>
<CheckBox
android:id="@+id/male"
android:layout_width="88px"
android:layout_height="wrap_content"
android:text="Man"
android:layout_x="50px"
android:layout_y="252px"
>
</CheckBox>
<CheckBox
android:id="@+id/female"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Woman"
android:layout_x="190px"
android:layout_y="252px"
>
</CheckBox>
</AbsoluteLayout>

Checkbox.java

package com.android.demo.checkbox;

import android.app.Activity;
import android.os.Bundle;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.Toast;

public class Checkbox extends Activity {
/** Called when the activity is first created. */

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
findview();
checkboxlistener();
}
private CheckBox malecheckbox;
private CheckBox femalecheckbox;
private void findview()
{
malecheckbox=(CheckBox)findViewById(R.id.male);
femalecheckbox=(CheckBox)findViewById(R.id.female);
}
//設定checkbox的listener
private void checkboxlistener()
{
malecheckbox.setOnCheckedChangeListener(listener);
femalecheckbox.setOnCheckedChangeListener(listener);
}
//監聽user 是否有選取
private CheckBox.OnCheckedChangeListener listener=new CheckBox.OnCheckedChangeListener()
{
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked)
{
//如果user按下Man
if(malecheckbox.isChecked()==true)
{
//則顯示字串You are Man
Toast.makeText(Checkbox.this,"You are a Man",Toast.LENGTH_LONG).show();
}
//如果user按下Woman
if(femalecheckbox.isChecked()==true)
{
//則顯示字串You are Woman
Toast.makeText(Checkbox.this,"You are a Woman",Toast.LENGTH_LONG).show();
}
}
};
}