Android学习笔记之CheckBox

CheckBox复选按钮是一种有双状态按钮的特殊类型，可以选中或者不选中。可以现在布局文件中定义多选按钮，然后对每一个多选按钮进行事件监setOnCheckedChangeListener，通过isChecked来判断选项是否被选中

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/theme" />
    <CheckBox
        android:id="@+id/apple"
        android:text="@string/apple"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
    <CheckBox
        android:id="@+id/banana"
        android:text="@string/banana"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>


</LinearLayout>

RadioGroupActivity.java

package Android.Activity;

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

public class RadioGroupActivity extends Activity {
    /** Called when the activity is first created. */
    private CheckBox appleCheck = null;
    private CheckBox bananaCheck = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //通过控件的ID来得到代表控件的对象
        appleCheck = (CheckBox)findViewById(R.id.apple);
        bananaCheck = (CheckBox)findViewById(R.id.banana);
        //为RadioGroup设置易做图，需要注意的是，这里的易做图和Button控件的易做图有所不同
        appleCheck.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                // TODO Auto-generated method stub
                if(isChecked){
                    Toast.makeText(RadioGroupActivity.this,"恭喜你，还剩很多苹果", Toast.LENGTH_LONG).show();
                }
            }
        }); www.zzzyk.com

        bananaCheck.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                // TODO Auto-generated method stub
                if(isChecked){
                    Toast.makeText(RadioGroupActivity.this,"恭喜你，还剩很多香蕉", Toast.LENGTH_LONG).show();
                }
            }
        });
    }
}

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补充：移动开发 , Android ,