android > 获取当前位置

HomeIndex.java

package basic.futao.ma;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import location_map.futao.ma.R;

public class HomeIndex extends Activity {
	/** Called when the activity is first created. */
	
	String TAG = "PhoneStatReceiver";
	Context Tcontext;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		Tcontext = HomeIndex.this;
		LocationManager loctionManager = (LocationManager) Tcontext
				.getSystemService(Context.LOCATION_SERVICE);

		Criteria criteria = new Criteria();
		criteria.setAccuracy(Criteria.ACCURACY_FINE);// 高精度
		criteria.setAltitudeRequired(false);// 不要求海拔
		criteria.setBearingRequired(false);// 不要求方位
		criteria.setCostAllowed(true);// 允许有花费
		criteria.setPowerRequirement(Criteria.POWER_LOW);// 低功耗
		// 从可用的位置提供器中，匹配以上标准的最佳提供器
        String provider = loctionManager.getBestProvider(criteria, true);  
        Location location = null;
        try {
        	location = loctionManager.getLastKnownLocation(provider); 
		} catch (Exception e) {
			// TODO: handle exception
		}
         
        if(location != null){//如果获得有效坐标  
            // 获得最后一次变化的位置  
              
            Double x = location.getLatitude();// 纬度  
            Double y = location.getLongitude();// 经度  
            Log.d("PhoneStatReceiver", x + "_" + y);  

			// 根据坐标返回具体地址
			Geocoder geocoder;
			List<Address> addresses = null;
			String addressStr = "";// 最终地址
			geocoder = new Geocoder(Tcontext, Locale.getDefault());
			try {
				addresses = geocoder.getFromLocation(x, y, 1);
				if (!addresses.isEmpty()) {// 判断addresses是否为空//如果获得有效地理位置
					String address = addresses.get(0).getAddressLine(0);
					String city = addresses.get(0).getAddressLine(1);
					String country = addresses.get(0).getAddressLine(2);
					addressStr = country + "__" + city + "___" + address;
					Log.d(TAG, addressStr);
				}else{
					Log.d(TAG, "获取失败");
				}

			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}else{
			Log.d(TAG, "获取失败");
		}
		
		


	}
}

然后是权限

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>