所以这是我的 MyLocationListener 类
package com.example.gpslocater;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;
public class MyLocationListener implements LocationListener {
public TextView mLocationTextView;
Context mContent;
public MyLocationListener(Context context) {
mContent = context;
}
@Override
public void onLocationChanged(Location location) {
location.getLatitude();
location.getLongitude();
String Text = "My current location is :" +
"Latitude = " + location.getLatitude() +
" Longitude = " + location.getLongitude();
//figure out a way to make it display through a text view
mLocationTextView.setText(Text);
}
@Override
public void onProviderDisabled(String provider) {
Toast.makeText(mContent, "Gps Disabled", Toast.LENGTH_SHORT).show();
}
@Override
public void onProviderEnabled(String provider) {
Toast.makeText(mContent, "Gps Enabled", Toast.LENGTH_SHORT);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
这是我的 GPS 活动课程
public class GPSActivity extends Activity {
private Button mGPSButton;
private TextView mLatitudeTextView;
private TextView mLongitudeTextView;
private LocationManager mLocationManager;
private LocationListener mLocationListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gps);
mLocationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
mLocationListener = new MyLocationListener(null);
mGPSButton = (Button)findViewById(R.id.press_button);
mGPSButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mLocationListener);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.g, menu);
return true;
}
}
现在当我运行它时它可以工作但是在我按下按钮后程序停止响应有很多错误消息
有一条错误消息说 java.lang.SecurityException "gps" 位置提供程序需要 ACCESS_FINE_LOCATION 权限，如果需要，我是否必须添加它，我应该在哪里添加它？我认为这是我的程序崩溃的原因。