学步园

package com.ethan.dialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class TestDialogActivity extends Activity {
	private Button btn;
	final Context context = this;  
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        btn = (Button) findViewById(R.id.Button01);
        
        btn.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				showDialog5();
			}
        });
    }
    public void showDialog5(){  
        //定义复选框选项  
        final String[] multiChoiceItems = {"Item1","Item2"};  
      //复选框默认值：false=未选;true=选中 ,各自对应items[i]
        final boolean[] defaultSelectedStatus = {false,false};
        
        final StringBuilder sb = new StringBuilder();
        //创建对话框  
        new AlertDialog.Builder(context)  
        .setTitle("复选框")//设置对话框标题  
        .setMultiChoiceItems(multiChoiceItems, defaultSelectedStatus, new OnMultiChoiceClickListener(){  
            @Override  
            public void onClick(DialogInterface dialog, int which,  
                    boolean isChecked) {  
            	//来回重复选择取消，得相应去改变item对应的bool值，点击确定时，根据这个bool[],得到选择的内容 
            	defaultSelectedStatus[which] = isChecked;
            }  
        })  //设置对话框[肯定]按钮  
        .setPositiveButton("确定",new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				for(int i=0;i<defaultSelectedStatus.length;i++) {
					if(defaultSelectedStatus[i]) {
						sb.append(multiChoiceItems[i]);
					}
				}
				// TODO Auto-generated method stub
				Toast.makeText(context,sb.toString(), Toast.LENGTH_LONG).show();  
				
			}
		})
        .setNegativeButton("取消", null)//设置对话框[否定]按钮  
        .show();  
    }  
}