简单使用百度地图，显示头像

使用百度定位，修改的百度API demo。

在你的当前位置显示你的头像。

/** * 重写application，验证异常和网络 */public class BaseApplication extends Application {private static BaseApplication mInstance = null;public boolean m_bKeyRight = true;BMapManager mBMapManager = null;// 输入授权的keypublic static final String strKey = "A6e775781071f702061cb5f783f3f4ba";@Overridepublic void onCreate() {super.onCreate();mInstance = this;initEngineManager(this);}public void initEngineManager(Context context) {if (mBMapManager == null) {mBMapManager = new BMapManager(context);}if (!mBMapManager.init(strKey, new MyGeneralListener())) {Toast.makeText(BaseApplication.getInstance().getApplicationContext(),"BMapManager  初始化错误!", Toast.LENGTH_LONG).show();}}public static BaseApplication getInstance() {return mInstance;}// 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 {@Overridepublic void onGetNetworkState(int iError) {if (iError == MKEvent.ERROR_NETWORK_CONNECT) {Toast.makeText(BaseApplication.getInstance().getApplicationContext(),"您的网络出错啦！", Toast.LENGTH_LONG).show();} else if (iError == MKEvent.ERROR_NETWORK_DATA) {Toast.makeText(BaseApplication.getInstance().getApplicationContext(),"输入正确的检索条件！", Toast.LENGTH_LONG).show();}// ...}@Overridepublic void onGetPermissionState(int iError) {if (iError == MKEvent.ERROR_PERMISSION_DENIED) {// 授权Key错误：Toast.makeText(BaseApplication.getInstance().getApplicationContext(),"请在 DemoApplication.java文件输入正确的授权Key！",Toast.LENGTH_LONG).show();BaseApplication.getInstance().m_bKeyRight = false;}}}}

图片工具类：

/** * 得到bitmap 图像 */public class BMapUtil {/** * 从view得到图片 */public static Bitmap getBitmapFromView(View view) {view.destroyDrawingCache();view.measure(View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());view.setDrawingCacheEnabled(true);Bitmap bitmap = view.getDrawingCache(true);return bitmap;}}

定位功能：

/** * 实现定位功能，定位到自己的当前的位置 */public class MainActivity extends Activity implements LocationListener {private enum E_BUTTON_TYPE {LOC, COMPASS, FOLLOW}private E_BUTTON_TYPE mCurBtnType;// 定位相关LocationClient mLocClient;LocationData locData = null;public MyLocationListenner myListener = new MyLocationListenner();// 定位图层locationOverlay myLocationOverlay = null;// 弹出泡泡图层private PopupOverlay pop = null;// 弹出泡泡图层，浏览节点时使用private TextView popupText = null;// 泡泡viewprivate View viewCache = null;// 地图相关，使用继承MapView的MyLocationMapView目的是重写touch事件实现泡泡处理// 如果不处理touch事件，则无需继承，直接使用MapView即可MyLocationMapView mMapView = null; // 地图Viewprivate MapController mMapController = null;// UI相关OnCheckedChangeListener radioButtonListener = null;Button requestLocButton = null;boolean isRequest = false;// 是否手动触发请求定位boolean isFirstLoc = true;// 是否首次定位@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);CharSequence titleLable = "定位功能";setTitle(titleLable);requestLocButton = (Button) findViewById(R.id.button1);mCurBtnType = E_BUTTON_TYPE.LOC;OnClickListener btnClickListener = new OnClickListener() {public void onClick(View v) {switch (mCurBtnType) {case LOC:// 手动定位请求requestLocClick();break;case COMPASS:myLocationOverlay.setLocationMode(LocationMode.NORMAL);requestLocButton.setText("定位");mCurBtnType = E_BUTTON_TYPE.LOC;break;case FOLLOW:myLocationOverlay.setLocationMode(LocationMode.COMPASS);requestLocButton.setText("罗盘");mCurBtnType = E_BUTTON_TYPE.COMPASS;break;}}};requestLocButton.setOnClickListener(btnClickListener);RadioGroup group = (RadioGroup) this.findViewById(R.id.radioGroup);radioButtonListener = new OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId) {if (checkedId == R.id.defaulticon) {// 传入null则，恢复默认图标modifyLocationOverlayIcon(null);}if (checkedId == R.id.customicon) {// 修改为自定义markermodifyLocationOverlayIcon(getResources().getDrawable(R.drawable.icon_geo));}}};group.setOnCheckedChangeListener(radioButtonListener);// 地图初始化mMapView = (MyLocationMapView) findViewById(R.id.bmapView);mMapController = mMapView.getController();mMapView.getController().setZoom(14);mMapView.getController().enableClick(true);mMapView.setBuiltInZoomControls(true);// 创建 弹出泡泡图层createPaopao();// 定位初始化mLocClient = new LocationClient(this);locData = new LocationData();mLocClient.registerLocationListener(myListener);LocationClientOption option = new LocationClientOption();option.setOpenGps(true);// 打开gpsoption.setCoorType("bd09ll"); // 设置坐标类型option.setScanSpan(1000);mLocClient.setLocOption(option);mLocClient.start();// 定位图层初始化myLocationOverlay = new locationOverlay(mMapView);// 设置定位数据myLocationOverlay.setData(locData);// 添加定位图层mMapView.getOverlays().add(myLocationOverlay);myLocationOverlay.enableCompass();// 修改定位数据后刷新图层生效mMapView.refresh();}/** * 手动触发一次定位请求 */public void requestLocClick() {isRequest = true;mLocClient.requestLocation();Toast.makeText(MainActivity.this, "正在定位……", Toast.LENGTH_SHORT).show();}/** * 修改位置图标 *  * @param marker */public void modifyLocationOverlayIcon(Drawable marker) {// 当传入marker为null时，使用默认图标绘制myLocationOverlay.setMarker(marker);// 修改图层，需要刷新MapView生效mMapView.refresh();}/** * 创建弹出泡泡图层 */public void createPaopao() {viewCache = getLayoutInflater().inflate(R.layout.custom_text_view, null);popupText = (TextView) viewCache.findViewById(R.id.textcache);// 泡泡点击响应回调PopupClickListener popListener = new PopupClickListener() {@Overridepublic void onClickedPopup(int index) {Log.v("click", "clickapoapo");}};pop = new PopupOverlay(mMapView, popListener);MyLocationMapView.pop = pop;}/** * 定位SDK监听函数 */public class MyLocationListenner implements BDLocationListener {private double OLati;private double OLong;private double Length;@Overridepublic void onReceiveLocation(BDLocation location) {if (location == null)return;locData.latitude = location.getLatitude();locData.longitude = location.getLongitude();// 如果不显示定位精度圈，将accuracy赋值为0即可locData.accuracy = location.getRadius();// 此处可以设置 locData的方向信息, 如果定位 SDK 未返回方向信息，用户可以自己实现罗盘功能添加方向信息。locData.direction = location.getDerect();// 更新定位数据myLocationOverlay.setData(locData);// 更新图层数据执行刷新后生效mMapView.refresh();// 是手动触发请求或首次定位时，移动到定位点if (isRequest || isFirstLoc) {// 移动地图到定位点Log.d("LocationOverlay", "receive location, animate to it");mMapController.animateTo(new GeoPoint((int) (locData.latitude * 1e6),(int) (locData.longitude * 1e6)));isRequest = false;myLocationOverlay.setLocationMode(LocationMode.FOLLOWING);requestLocButton.setText("跟随");mCurBtnType = E_BUTTON_TYPE.FOLLOW;popupText.setBackgroundResource(R.drawable.nanshengduanfa);popupText.setText("蒲锦");pop.showPopup(BMapUtil.getBitmapFromView(popupText),new GeoPoint((int) (locData.latitude * 1e6),(int) (locData.longitude * 1e6)), 8);}// 首次定位完成isFirstLoc = false;}public void onReceivePoi(BDLocation poiLocation) {if (poiLocation == null) {return;}}}// 继承MyLocationOverlay重写dispatchTap实现点击处理public class locationOverlay extends MyLocationOverlay {public locationOverlay(MapView mapView) {super(mapView);// TODO Auto-generated constructor stub}@Overrideprotected boolean dispatchTap() {// TODO Auto-generated method stub// 处理点击事件,弹出泡泡//popupText.setBackgroundResource(R.drawable.popup);//popupText.setText("我的位置");//pop.showPopup(BMapUtil.getBitmapFromView(popupText), new GeoPoint(//(int) (locData.latitude * 1e6),//(int) (locData.longitude * 1e6)), 8);return false;}}@Overrideprotected void onPause() {mMapView.onPause();super.onPause();}@Overrideprotected void onResume() {mMapView.onResume();super.onResume();}@Overrideprotected void onDestroy() {// 退出时销毁定位if (mLocClient != null)mLocClient.stop();mMapView.destroy();super.onDestroy();}@Overrideprotected void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);mMapView.onSaveInstanceState(outState);}@Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {super.onRestoreInstanceState(savedInstanceState);mMapView.onRestoreInstanceState(savedInstanceState);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// getMenuInflater().inflate(R.menu.activity_main, menu);return true;}/** * 当位置发生变化的时候，触发该方法 */@Overridepublic void onLocationChanged(Location location) {// TODO Auto-generated method stub}@Overridepublic void onProviderDisabled(String provider) {// TODO Auto-generated method stub}@Overridepublic void onProviderEnabled(String provider) {// TODO Auto-generated method stub}@Overridepublic void onStatusChanged(String provider, int status, Bundle extras) {// TODO Auto-generated method stub}}/** * 继承MapView重写onTouchEvent实现泡泡处理操作 *  * @author hejin *  */class MyLocationMapView extends MapView {static PopupOverlay pop = null;// 弹出泡泡图层，点击图标使用public MyLocationMapView(Context context) {super(context);// TODO Auto-generated constructor stub}public MyLocationMapView(Context context, AttributeSet attrs) {super(context, attrs);}public MyLocationMapView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);}@Overridepublic boolean onTouchEvent(MotionEvent event) {if (!super.onTouchEvent(event)) {// 消隐泡泡if (pop != null && event.getAction() == MotionEvent.ACTION_UP) {// pop.hidePop();}}return true;}}

效果：

注意：

1.mapview 写全路径，才能显示地图图层。因为mylocationmapview是在locationoverlaydemo中定义的内部类。

2.

这个错误是没有配置好清单中的name：

   <application        android:name="com.example.testmap.BaseApplication"        android:allowBackup="true"        android:label="@string/app_name"        android:theme="@style/AppTheme" >

name 为重写的application的路径。

3.百度地图的乱七八糟的权限太多了。就直接copy上去吧，我改了几个认为不需要的权限都报错，伤不起啊。

4.要定位的话，还得添加定位服务，这个是封装在.jar里面的。你在清单文件中添加起，就可以了。

        <service            android:name="com.baidu.location.f"            android:enabled="true"            android:process=":remote" >        </service>

5.申请授权key的时候，应用名称是：

string.xml中的"app_name"对应的字符串。

6.已存在服务异常：

原来是跳转的时候，写错了跳转到了定位服务，没跳转到活动造成的异常。