Android 设计一个可单选，多选的Demo

Android 提供了相当多的UI，在android.widget 的UI组件库，下面就让我们看看他是ListView的用法吧。

下面的Demo 是一个

/* * Copyright (C) 2008 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *      http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package com.example.android.apis.view;import android.app.ListActivity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.ListView;/** * This example shows how to use choice mode on a list. This list is  * in CHOICE_MODE_SINGLE mode, which means the items behave like * checkboxes. */public class List10 extends ListActivity {    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setListAdapter(new ArrayAdapter(this,                android.R.layout.simple_list_item_single_choice, GENRES));        final ListView listView = getListView();        listView.setItemsCanFocus(false);        listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);    }    private static final String[] GENRES = new String[] {        "Action", "Adventure", "Animation", "Children", "Comedy", "Documentary", "Drama",        "Foreign", "History", "Independent", "Romance", "Sci-Fi", "Television", "Thriller"    };

上面是一个单选的List Demo。

对于需要多选的话可以改变这些参数就OK了

setListAdapter(new ArrayAdapter(this,                android.R.layout.simple_list_item_multiple_choice, GENRES));        final ListView listView = getListView();        listView.setItemsCanFocus(false);        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

很简单吧，Android的开发确实很不错。

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