Android弹出多选框下拉框的实例

1 安卓弹出对话框是复选框的代码

package com.example.b;import android.os.Bundle;import android.preference.MultiSelectListPreference;import android.app.Activity;import android.view.Menu;import android.app.AlertDialog;import android.app.Dialog;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.view.View;import android.widget.Button;import android.widget.EditText;public class MainActivity extends Activity {   private EditText editText;    private final static int DIALOG=1;    boolean[] flags=new boolean[]{false,false,false};//初始复选情况    String[] items=null;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        items=getResources().getStringArray(R.array.hobby);        editText=(EditText)findViewById(R.id.msg);        Button button = (Button) findViewById(R.id.button);        button.setOnClickListener(new View.OnClickListener() {            @SuppressWarnings("deprecation")public void onClick(View v) {                // 显示对话框                showDialog(1);            }        });    }            @Override    protected Dialog onCreateDialog(int id) {        Dialog dialog = null;    switch (id) {case 1:Builder builder = new AlertDialog.Builder(this);builder.setIcon(R.drawable.ic_launcher);builder.setTitle("title");builder.setMultiChoiceItems(items, flags, new DialogInterface.OnMultiChoiceClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which, boolean isChecked) {flags[which]=isChecked;String results = "";for (int i = 0; i < flags.length; i++) {if(flags[i]){results=results+items[i];}}editText.setText(results);}});builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {}});dialog = builder.create();break;default:break;}        return dialog;    }    }

2 layout

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:orientation="vertical"    tools:context=".MainActivity" >    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/msg2"        android:text="@string/hello_world" />    <EditText android:text=""         android:id="@+id/msg"        android:layout_width="fill_parent"        android:layout_height="wrap_content"         android:editable="false"        android:cursorVisible="false" />        <Button android:text="显示复选框对话框"         android:id="@+id/button"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></LinearLayout>

3 加入 多选框的选项

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

4 效果图