Chapter 2 use C # To compile the Baidu map Android mobile app (Lecture 1 ),

Chapter 2 use C # To compile the Baidu map Android mobile app (Lecture 1 ),

Category: C #, Android; date:

3.5 Example 5 -- Multi-map presentation I. Introduction

Map controls start with v2.3.5 and support multiple instances. That is, developers can create multiple map objects on a single page and operate on these objects without interfering with each other.

File Name: Demo04MultiMapView. cs

Introduction: describes the use of multiple mapviews.

Details: create four TextureMapView controls at the same time in one interface;

Ii. Example

1. Run

The Running Effect in the x86 simulator is as follows:

 

Based on the previous example, you only need to add the following steps.

2. Add the demo05_multimap.axml file.

Add the file in the layout folder and change it to the following code:

 

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:map="http://schemas.android.com/apk/res-auto"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <LinearLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_marginBottom="5dp"        android:layout_weight="1"        android:orientation="horizontal" >        <fragment            android:id="@+id/map1"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:layout_marginRight="5dp"            android:layout_weight="1"            class="com.baidu.mapapi.map.TextureMapFragment" />        <fragment            android:id="@+id/map2"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:layout_weight="1"            class="com.baidu.mapapi.map.TextureMapFragment" />    </LinearLayout>    <LinearLayout        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_weight="1"        android:orientation="horizontal" >        <fragment            android:id="@+id/map3"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:layout_marginRight="5dp"            android:layout_weight="1"            class="com.baidu.mapapi.map.TextureMapFragment" />        <fragment            android:id="@+id/map4"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:layout_weight="1"            class="com.baidu.mapapi.map.TextureMapFragment" />    </LinearLayout></LinearLayout>

 

3. Add the Demo05MultiMapView. cs file.

Add the file in the SdkDemos folder and change its content to the following code:

 

Using Android. app; using Android. content. PM; using Android. OS; using Com. baidu. mapapi. map; using Com. baidu. mapapi. model; namespace BdMapV371Demos. srcSdkDemos {// <summary> /// display multiple maps in an Activity /// </summary> [Activity (Label = "@ string/demo_name_multimap ", configurationChanges = ConfigChanges. orientation | ConfigChanges. keyboardHidden, ScreenOrientation = ScreenOrientation. sensor)] public class Demo05MutiMapView: Activity {private readonly LatLng Geo_BeiJing = new LatLng (39.945, 116.404); private readonly LatLng Geo_ShangHai = new LatLng (31.227, 121.481 ); private readonly LatLng Geo_GuangZhou = new LatLng (23.155, 113.264); private readonly LatLng Geo_ShenZhen = new LatLng (22.560, 114.064); protected override void OnCreate (Bundle savedInstanceState) {base. onCreate (savedInstanceState); SetContentView (Resource. layout. demo05_multimap); InitMap () ;}/// <summary >/// initialize Map /// </summary> private void InitMap () {MapStatusUpdate u1 = MapStatusUpdateFactory. newLatLng (Geo_BeiJing); TextureMapFragment map1 = FragmentManager. findFragmentById <TextureMapFragment> (Resource. id. map1); map1.BaiduMap. setMapStatus (u1); MapStatusUpdate u2 = MapStatusUpdateFactory. newLatLng (Geo_ShangHai); TextureMapFragment map2 = FragmentManager. findFragmentById <TextureMapFragment> (Resource. id. map2); map2.BaiduMap. setMapStatus (u2); MapStatusUpdate u3 = MapStatusUpdateFactory. newLatLng (Geo_GuangZhou); TextureMapFragment map3 = FragmentManager. findFragmentById <TextureMapFragment> (Resource. id. map3); map3.BaiduMap. setMapStatus (u3); MapStatusUpdate u4 = MapStatusUpdateFactory. newLatLng (Geo_ShenZhen); TextureMapFragment map4 = FragmentManager. findFragmentById <TextureMapFragment> (Resource. id. map4); map4.BaiduMap. setMapStatus (u4 );}}}

 

4. Modify the MainActivity. cs File

Add the following code to the demos field definition in the MainActivity. cs file.

// Example 5 -- Multi-Map Display new DemoInfo <Activity> (Resource. String. demo_title_multimap, Resource. String. demo_desc_multimap, new Demo05MutiMapView ()),

Run the observation results.