Android如何使用百度地图
刚学完android，决定来个小小应用。做什么呢？之前在公司看人家用ios做的地图不错，干脆我就做个android版吧。
百度了一下它的api，很简单。花了半天解决。首先新建一个工程，然后把baidumapapi.jar拷贝到工程下的lib文件夹里，同时在里面建一个文件夹armeabi，再把libBMapApiEngine_v1_3_3.so动态库文件拷进去，打开eclipse，右键点击工程的Properties，进入Java Build Path，打开Libraries，点击Add External JARS，把baidumapapi.jar添加进去，ok，配置好了。
自定义一个Aplication类，WhereMapApplication，继承自Application（拷贝自官方百度）：
public class WhereMapApplication extends Application {
static WhereMapApplication mDemoApp;
//百度MapAPI的管理类
BMapManager mBMapMan = null;
// 授权Key
// TODO: 请输入您的Key,
// 申请地址：http://dev.baidu.com/wiki/static/imap/key/
String mStrKey = "申请的KEY值";
boolean m_bKeyRight = true; // 授权Key正确，验证通过
// 常用事件监听，用来处理通常的网络错误，授权验证错误等
static class MyGeneralListener implements MKGeneralListener {
@Override
public void onGetNetworkState(int iError) {
Log.d("MyGeneralListener", "onGetNetworkState error is "+ iError);
Toast.makeText(WhereMapApplication.mDemoApp.getApplicationContext(), "您的网络出错啦！",
Toast.LENGTH_LONG).show();
}
@Override
public void onGetPermissionState(int iError) {
Log.d("MyGeneralListener", "onGetPermissionState error is "+ iError);
if (iError == MKEvent.ERROR_PERMISSION_DENIED) {
// 授权Key错误：
Toast.makeText(WhereMapApplication.mDemoApp.getApplicationContext(),
"请在BMapApiDemoApp.java文件输入正确的授权Key！",
Toast.LENGTH_LONG).show();
WhereMapApplication.mDemoApp.m_bKeyRight = false;
}
}
}
@Override
public void onCreate() {
Log.v("BMapApiDemoApp", "onCreate");
mDemoApp = this;
mBMapMan = new BMapManager(this);
mBMapMan.init(this.mStrKey, new MyGeneralListener());
mBMapMan.getLocationManager().setNotifyInternal(10, 5);
// if (mBMapMan != null) {
// mBMapMan.destroy();
// mBMapMan = null;
// }
super.onCreate();
}
@Override
//建议在您app的退出之前调用mapadpi的destroy()函数，避免重复初始化带来的时间消耗
public void onTerminate() {
// TODO Auto-generated method stub
if (mBMapMan != null) {
mBMapMan.destroy();
mBMapMan = null;
}
super.onTerminate();
}
}
百度API地址： http://dev.baidu.com/wiki/static/index.htm
百度申请key地址：http://dev.baidu.com/wiki/static/imap/key/
注册百度用户，再申请key值，把key值替换以上代码中的"申请的KEY值"。
修改AndroidManifest.xml文件中application的属性，添加android:name=".WhereMapApplication"如下：
<application
android:name=".WhereMapApplication"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
并且在之前添加，如果加在最后有可能会有警告产生：
<uses-sdk
android:minSdkVersion="3" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
</uses-permission>
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE" >
</uses-permission>
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="true"
android:resizeable="true"
android:smallScreens="true" />
public class MainActivity extends MapActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WhereMapApplication app = (WhereMapApplication)this.getApplication();
if (app.mBMapMan == null) {
app.mBMapMan = new BMapManager(getApplication());
app.mBMapMan.init(app.mStrKey, new WhereMapApplication.MyGeneralListener());
}
app.mBMapMan.start();
// 如果使用地图SDK，请初始化地图Activity
// long iTime = System.nanoTime();
super.initMapActivity(app.mBMapMan);
// iTime = System.nanoTime() - iTime;
// Log.d("MapViewDemo", "the init time is " + iTime);
MapView mapView = (MapView)findViewById(R.id.bmapView);
mapView.setBuiltInZoomControls(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
@Override
protected void onPause() {
WhereMapApplication app = (WhereMapApplication)this.getApplication();
if(app.mBMapMan != null )
app.mBMapMan.stop();
super.onPause();
}
@Override
protected void onResume() {
WhereMapApplication app = (WhereMapApplication)this.getApplication();
app.mBMapMan.start();
super.onResume();
}
}
BMapManager在application中new之后，使用init初始化之后，在需要的activity里面使用start，stop就可以控制map的显示和关闭：
public class MainActivity extends MapActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WhereMapApplication app = (WhereMapApplication)this.getApplication();
if (app.mBMapMan == null) {
app.mBMapMan = new BMapManager(getApplication());
app.mBMapMan.init(app.mStrKey, new WhereMapApplication.MyGeneralListener());
}
app.mBMapMan.start();
// 如果使用地图SDK，请初始化地图Activity
// long iTime = System.nanoTime();
super.initMapActivity(app.mBMapMan);
// iTime = System.nanoTime() - iTime;
// Log.d("MapViewDemo", "the init time is " + iTime);
MapView mapView = (MapView)findViewById(R.id.bmapView);
mapView.setBuiltInZoomControls(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
@Override
protected void onPause() {
WhereMapApplication app = (WhereMapApplication)this.getApplication();
if(app.mBMapMan != null )
app.mBMapMan.stop();
super.onPause();
}
@Override
protected void onResume() {
WhereMapApplication app = (WhereMapApplication)this.getApplication();
app.mBMapMan.start();
super.onResume();
}
}
这个时候已经能显示出地图了，不过是在模拟器上测试的，没有真机，只能先写在这里了。其余如打点，搜索等功能在官方代码中均有详细说明，就不一一描述了。