android dialog —— 多选列表对话框

和单选列表对话框相似，这里需要通过setMultiChoiceItems将array.xml中的数据添加进去。

当单击列表项时会产生Click事件，这里用到的监听器是DialogInterface.OnMultiChoiceClickListener，具体实现如下：

 第一步：

添加res/values/array.xml的数据

 

<?xml version="1.0" encoding="utf-8"?>  
<resources>  
    <string-array name="hobby">  
        <item>篮球</item>  
        <item>足球</item>  
        <item>排球</item>  
   </string-array>  
</resources>  

 

第二步：一个输入框和一个按钮

res/layout/muti_choice_dialog_layout.xml

<?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="wrap_content">
  <EditText android:id="@+id/editText"
  	android:layout_width="fill_parent"
  	android:layout_height="wrap_content"
  	android:text="这是一个多选列表对话框"
  />
  <Button android:id="@+id/button"
  	android:layout_width="fill_parent"
  	android:layout_height="wrap_content"
  	android:text="显示多选列表对话框"
  />
</LinearLayout>

第三步：

src/com/dialog/activity/MutiChoiceDialogActivity.java

package com.dialog.activity;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MutiChoiceDialogActivity extends Activity {
	
	private final int MUTI_CHOICE_DIALOG = 1;
	
	boolean[] selected = new boolean[]{false,false,false};
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.muti_choice_dialog_layout);
        
        Button button = (Button) findViewById(R.id.button);
        View.OnClickListener listener = new View.OnClickListener() {
			
			@Override
			public void onClick(View view) {
				showDialog(MUTI_CHOICE_DIALOG);
			}
		};
		button.setOnClickListener(listener);
    }
    
    @Override
    protected Dialog onCreateDialog(int id) {
    	Dialog dialog = null;
    	switch(id) {
    		case MUTI_CHOICE_DIALOG:
    			Builder builder = new AlertDialog.Builder(this);
    			builder.setTitle("多选列表对话框");
    			builder.setIcon(R.drawable.basketball);
    			DialogInterface.OnMultiChoiceClickListener mutiListener = 
    				new DialogInterface.OnMultiChoiceClickListener() {
						
						@Override
						public void onClick(DialogInterface dialogInterface, 
								int which, boolean isChecked) {
							selected[which] = isChecked;
						}
					};
    			builder.setMultiChoiceItems(R.array.hobby, selected, mutiListener);
    			DialogInterface.OnClickListener btnListener = 
    				new DialogInterface.OnClickListener() {
						@Override
						public void onClick(DialogInterface dialogInterface, int which) {
							String selectedStr = "";
							for(int i=0; i<selected.length; i++) {
								if(selected[i] == true) {
									selectedStr = selectedStr + " " +
										getResources().getStringArray(R.array.hobby)[i];
								}
							}
							
							EditText editText = (EditText) findViewById(R.id.editText);
							editText.setText(selectedStr);
						}
					};
    			builder.setPositiveButton("确定", btnListener);
    			dialog = builder.create();
    			break;
    	}
    	return dialog;
    }
}

 

效果图：

 

源码下载地址：http://download.youkuaiyun.com/source/3222814