2 u011148772 u011148772 于 2013.08.15 10:29 提问

android问题,我用百度 map 定位不到自己的位置?新手求助

public class MainActivity extends Activity {

private LocationClient mLocationClient = null; 
private Button mStartBtn = null; 
private TextView mTextView = null; 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mStartBtn = (Button)findViewById(R.id.btn); 
    mTextView = (TextView)findViewById(R.id.text); 

    mLocationClient = new LocationClient(this); 

    LocationClientOption option = new LocationClientOption(); 
    option.setOpenGps(true);                                //打开gps 
    option.setCoorType("bd09ll");                           //设置坐标类型为bd09ll 
    option.setPriority(LocationClientOption.NetWorkFirst);  //设置网络优先 
    option.setProdName("locSDKDemo2");                      //设置产品线名称 
    option.setScanSpan(5000);       //定时定位,每隔5秒钟定位一次。

    mLocationClient.setLocOption(option); 
    mLocationClient.registerLocationListener(new BDLocationListener() { 
        @Override 
        public void onReceiveLocation(BDLocation location) { 
            if (location == null) 
                return ; 
            StringBuffer sb = new StringBuffer(256); 
            sb.append("time : "); 
            sb.append(location.getTime()); 
            sb.append("\nerror code : "); 
            sb.append(location.getLocType()); 
            sb.append("\nlatitude : "); 
            sb.append(location.getLatitude()); 
            sb.append("\nlontitude : "); 
            sb.append(location.getLongitude()); 
            sb.append("\nradius : "); 
            sb.append(location.getRadius()); 
            if (location.getLocType() == BDLocation.TypeGpsLocation){ 
                sb.append("\nspeed : "); 
                sb.append(location.getSpeed()); 
                sb.append("\nsatellite : "); 
                sb.append(location.getSatelliteNumber()); 
            } else if (location.getLocType() == BDLocation.TypeNetWorkLocation){ 
                sb.append("\naddr : "); 
                sb.append(location.getAddrStr()); 
            } 
            sb.append("\nsdk version : "); 
            sb.append(mLocationClient.getVersion()); 
            mTextView.setText(sb.toString()); 
        } 

        public void onReceivePoi(BDLocation location){ 
            //return ; 
        } 
    });        
    mStartBtn.setOnClickListener(new OnClickListener() { 
        @Override 
        public void onClick(View v) { 
            if (mLocationClient == null) return ; 
            if (mLocationClient.isStarted()){ 
                mLocationClient.stop(); 
                mStartBtn.setText("开始"); 
            } else { 
                mLocationClient.start(); 
                mStartBtn.setText("关闭"); 
            } 
        } 
    });         
}
  @Override 
    public void onDestroy(){ 
        if (mLocationClient != null && mLocationClient.isStarted()){ 
            mLocationClient.stop(); 
            mLocationClient = null; 
        } 
        super.onDestroy(); 
    } 

}
出来的地址为什么经纬度都是4.0 E-324

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