Android 技术总结（016）—— 使用百度mapapi获取当前位置

package location.demo;import com.baidu.location.BDLocation;import com.baidu.location.BDLocationListener;import com.baidu.location.LocationClient;import com.baidu.location.LocationClientOption;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;public class main extends Activity {		private LocationClient mLocationClient = null;	private Button mStartBtn = null;	private TextView mTextView = null;	    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);                setContentView(R.layout.main);                mStartBtn = (Button)findViewById(R.id.button1);        mTextView = (TextView)findViewById(R.id.textview1);                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();    }                }