关闭GPS

public class MainActivity extends Activity {
	private LocationManager locationManager;
	private TextView tv;
	private StringBuilder builder = new StringBuilder("位置信息:\n");
	private LocationListener ll;
	public void getLocation(){
		locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

		String provider = LocationManager.GPS_PROVIDER;
		Location location = locationManager
				.getLastKnownLocation(provider);
		
		updateMsg(location);
		
		ll = new LocationListener(){
		
			public void onLocationChanged(Location location) {
				updateMsg(location);
			}
	
			public void onProviderDisabled(String provider) {
			}


			public void onProviderEnabled(String provider) {
			}


			public void onStatusChanged(String provider, int status,
					Bundle extras) {
			}
         };
		
		locationManager.requestLocationUpdates(provider, 2000, 10,
				ll);
	}
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		tv = (TextView) findViewById(R.id.mTextView);
		Button mLocation = (Button)findViewById(R.id.mLocation);
		mLocation.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				getLocation();
			}
		});

	}

	private void updateMsg(Location l) {
		
		if (l != null) {
			double lat = l.getLatitude();
			double lng = l.getLongitude();
			builder.append("(");
			builder.append(lat);
			builder.append(",");
			builder.append(lng);
			builder.append(")");
			
			if(l.hasAccuracy()){
				builder.append("\n精度：");
				builder.append(l.getAccuracy());
			}
			
			if(l.hasAltitude()){
				builder.append("\n高度：");
				builder.append(l.getAltitude());
			}
			
			if(l.hasBearing()){
				builder.append("\n方向：");
				builder.append(l.getBearing());
			}
			
			if(l.hasSpeed()){
				builder.append("\n速度：");
				builder.append(l.getSpeed());
			}
			
			builder.append("\n");

		} else {
			builder.append("没有位置信息");
		}
		tv.setText(builder);
	}
    public void onResume() {
    	if(locationManager != null) {
    		locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 1, ll);
    	}
        super.onResume();
    }

    public void onPause() {
    	if(locationManager != null) {
    		locationManager.removeUpdates(ll);
    	}
        super.onPause();
    }
	
}

   最近做了一个Gps定位的系统项目，不过研究几天还是没有进展。到最后项目经理告诉我解决方法，和大家分享一下。