百度地图3.1.0(三)图层展示

基于之前的文章 百度地图3.1.0(一)Hello BaiduMap(http://www.cnblogs.com/creasylai19/p/3921053.html) 添加的功能

主要是添加了三个Button，代码如下

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 2     xmlns:tools="http://schemas.android.com/tools"

 3     android:layout_width="match_parent"

 4     android:layout_height="match_parent"

 5     android:orientation="vertical"

 6     tools:context="com.example.testbaidu_v_3_1.MainActivity" >

 7 

 8     <LinearLayout

 9         android:layout_width="match_parent"

10         android:layout_height="wrap_content"

11         android:orientation="horizontal" >

12 

13         <Button

14             android:layout_width="0dp"

15             android:layout_height="wrap_content"

16             android:layout_weight="1"

17             android:onClick="openNormalMode"

18             android:text="普通地图" />

19 

20         <Button

21             android:layout_width="0dp"

22             android:layout_height="wrap_content"

23             android:layout_weight="1"

24             android:onClick="openSatelliteMode"

25             android:text="卫星地图" />

26 

27         <Button

28             android:layout_width="0dp"

29             android:layout_height="wrap_content"

30             android:layout_weight="1"

31             android:onClick="openTraffic"

32             android:text="交通图" />

33     </LinearLayout>

34 

35     <com.baidu.mapapi.map.MapView

36         android:id="@+id/bmapView"

37         android:layout_width="fill_parent"

38         android:layout_height="fill_parent"

39         android:clickable="true" />

40 

41 </LinearLayout>

MainActivity改成：

 1 package com.example.testbaidu_v_3_1;

 2 

 3 import android.content.BroadcastReceiver;

 4 import android.content.Context;

 5 import android.content.Intent;

 6 import android.content.IntentFilter;

 7 import android.os.Bundle;

 8 import android.support.v7.app.ActionBarActivity;

 9 import android.view.View;

10 import android.widget.Toast;

11 

12 import com.baidu.mapapi.SDKInitializer;

13 import com.baidu.mapapi.map.BaiduMap;

14 import com.baidu.mapapi.map.MapView;

15 

16 public class MainActivity extends ActionBarActivity {

17 

18     private MapView mMapView = null;

19     private SDKReceiver mReceiver;

20     private BaiduMap mBaiduMap;

21     private boolean trafficStatus = false;

22 

23     protected void onCreate(Bundle savedInstanceState) {

24         super.onCreate(savedInstanceState);

25         // 在使用SDK各组件之前初始化context信息，传入ApplicationContext

26         // 注意该方法要再setContentView方法之前实现

27         SDKInitializer.initialize(getApplicationContext());

28         setContentView(R.layout.activity_main);

29         // 获取地图控件引用

30         mMapView = (MapView) findViewById(R.id.bmapView);

31         mBaiduMap = mMapView.getMap();

32 

33         // 看baidu的Demo，发现它注册这个广播，用来监听SDKInitializer的初始化

34         IntentFilter iFilter = new IntentFilter();

35         iFilter.addAction(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_ERROR);

36         iFilter.addAction(SDKInitializer.SDK_BROADCAST_ACTION_STRING_NETWORK_ERROR);

37         mReceiver = new SDKReceiver();

38         registerReceiver(mReceiver, iFilter);

39     }

40 

41     public void openNormalMode(View mView) {

42         mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);

43     }

44 

45     public void openSatelliteMode(View mView) {

46         mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);

47     }

48 

49     public void openTraffic(View mView) {

50         if (trafficStatus) {

51             mBaiduMap.setTrafficEnabled(false);

52             trafficStatus = false;

53         } else {

54             mBaiduMap.setTrafficEnabled(true);

55             trafficStatus = true;

56         }

57     }

58 

59     protected void onDestroy() {

60         super.onDestroy();

61         // 在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理

62         mMapView.onDestroy();

63         unregisterReceiver(mReceiver);

64     }

65 

66     @Override

67     protected void onResume() {

68         super.onResume();

69         // 在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理

70         mMapView.onResume();

71     }

72 

73     @Override

74     protected void onPause() {

75         super.onPause();

76         // 在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理

77         mMapView.onPause();

78     }

79 

80     public class SDKReceiver extends BroadcastReceiver {

81         public void onReceive(Context context, Intent intent) {

82             String s = intent.getAction();

83             if (s.equals(SDKInitializer.SDK_BROADTCAST_ACTION_STRING_PERMISSION_CHECK_ERROR)) {

84                 Toast.makeText(MainActivity.this,

85                         "key 验证出错! 请在 AndroidManifest.xml 文件中检查 key 设置",

86                         Toast.LENGTH_SHORT).show();

87                 ;

88             } else if (s

89                     .equals(SDKInitializer.SDK_BROADCAST_ACTION_STRING_NETWORK_ERROR)) {

90                 Toast.makeText(MainActivity.this, "网络出错", Toast.LENGTH_SHORT)

91                         .show();

92             }

93         }

94     }

95 

96 }

对比之前(一)的例子，可以看到主要是添加了  mBaiduMap = mMapView.getMap();

并对参数mBaiduMap做控制

运行结果截屏：