Table of Contents
3.2 示例2--基本地图功能
一、简介
二、设计步骤
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【Android】第3章(3)基本地图功能

Jul 06, 2016 pm 01:30 PM
android Classification Function map Basic

分类:C#、Android; 日期:2016-02-04 3.2 示例2--基本地图功能 一、简介 1、地图 地图展示:普通地图(2D,3D)、卫星图和实时交通图。 地图操作:可通过接口或手势控制来实现地图的点击、双击、长按、缩放、平移、旋转、改变视角等操作。 2、地图类型 百

分类:C#、Android; 日期:2016-02-04

3.2 示例2--基本地图功能

一、简介

1、地图

地图展示:普通地图(2D,3D)、卫星图和实时交通图。

地图操作:可通过接口或手势控制来实现地图的点击、双击、长按、缩放、平移、旋转、改变视角等操作。

2、地图类型

百度地图Android SDK 3.6.1提供了两种类型的地图资源(普通矢量地图和卫星图,设置办法见demo04),如果不指定地图类型,默认为普通矢量地图。

此示例仅演示普通矢量图的基本用法。

3、本示例功能描述

该例子介绍如何构建一个基础的地图页面,并演示如何显示以自定义的经纬度坐标为中心点的百度地图。

简介:创建一张百度地图并管理地图的生命周期。

详述:

(1)创建一张最简单的百度地图;

(2)管理地图的生命周期,具体请参看代码部分的相关注释;

(3)可监听地图加载完成事件;

4、本示例运行截图

在x86模拟器中运行的效果如下:

 

二、设计步骤

1、添加Demo02BaseMap.cs文件

先在项目中添加一个SrcSdkDemos文件夹,然后在该文件夹下添加该文件。

<span style="color: #0000ff;">using</span><span style="color: #000000;"> Android.App;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> Android.Content.PM;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> Android.OS;
</span><span style="color: #0000ff;">using</span><span style="color: #000000;"> Com.Baidu.Mapapi.Map;

</span><span style="color: #0000ff;">namespace</span><span style="color: #000000;"> BdMapV371Demos.SrcSdkDemos
{
    [Activity(Label </span>= <span style="color: #800000;">"</span><span style="color: #800000;">@string/demo_name_basemap</span><span style="color: #800000;">"</span><span style="color: #000000;">,
        ConfigurationChanges </span>= ConfigChanges.Orientation |<span style="color: #000000;"> ConfigChanges.KeyboardHidden,
        ScreenOrientation </span>=<span style="color: #000000;"> ScreenOrientation.Sensor)]
    </span><span style="color: #0000ff;">public</span> <span style="color: #0000ff;">class</span><span style="color: #000000;"> Demo02BaseMap : Activity
    {
        </span><span style="color: #0000ff;">PRivate</span><span style="color: #000000;"> TextureMapView mMapView;

        </span><span style="color: #0000ff;">protected</span> <span style="color: #0000ff;">override</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> OnCreate(Bundle savedInstanceState)
        {
            </span><span style="color: #0000ff;">base</span><span style="color: #000000;">.OnCreate(savedInstanceState);
            mMapView </span>= <span style="color: #0000ff;">new</span> TextureMapView(<span style="color: #0000ff;">this</span><span style="color: #000000;">,
                </span><span style="color: #0000ff;">new</span> BaiduMapOptions().MapStatus(<span style="color: #0000ff;">new</span><span style="color: #000000;"> MapStatus.Builder()
                .Target(MainActivity.HeNanUniversity)
                .Build()));
            SetContentView(mMapView);
        }

        </span><span style="color: #0000ff;">protected</span> <span style="color: #0000ff;">override</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> OnPause()
        {
            </span><span style="color: #0000ff;">base</span><span style="color: #000000;">.OnPause();
            mMapView.OnPause();
        }

        </span><span style="color: #0000ff;">protected</span> <span style="color: #0000ff;">override</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> OnResume()
        {
            </span><span style="color: #0000ff;">base</span><span style="color: #000000;">.OnResume();
            mMapView.OnResume();
        }

        </span><span style="color: #0000ff;">protected</span> <span style="color: #0000ff;">override</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> OnDestroy()
        {
            </span><span style="color: #0000ff;">base</span><span style="color: #000000;">.OnDestroy();
            mMapView.OnDestroy();
        }
    }
}</span>
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2、修改MainActivity.cs文件

在MainActivity.cs文件的demos字段定义中添加下面的代码。

 

<span style="color: #0000ff;">private</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">readonly</span> DemoInfo<activity>[] demos =<span style="color: #000000;">
        {
           ……
            </span><span style="color: #008000;">//</span><span style="color: #008000;">示例1--基本地图功能</span>
            <span style="color: #0000ff;">new</span> DemoInfo<activity><span style="color: #000000;">(Resource.String.demo_title_basemap,
                Resource.String.demo_desc_basemap,
                </span><span style="color: #0000ff;">new</span><span style="color: #000000;"> Demo01BaseMap()),
        }</span></activity></activity>
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运行,单击主界面中的【示例1】,观察结果。


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