Android 6.0 getLastKnowLocationPermission [英] Android 6.0 getLastKnowLocationPermission

问题描述

当我尝试获取Android 6.0中的最后一个已知位置时出现错误

I have a error when I'm trying to get last known location in Android 6.0

Location lastLocation =locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

错误:

java.lang.SecurityException:网络"位置提供程序需要 ACCESS_COARSE_LOCATION或ACCESS_FINE_LOCATION权限.

java.lang.SecurityException: "network" location provider requires ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission.

我的清单:

 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.WRITE_SETTINGS"/>

检查权限:

LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

        if (ActivityCompat.checkSelfPermission(context,
                Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {
            try {
                ActivityCompat.requestPermissions(getActivity(), new String[] {
                                Manifest.permission.ACCESS_FINE_LOCATION,
                                Manifest.permission.ACCESS_COARSE_LOCATION },
                        1);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        PointDTO point = new PointDTO();

        try {
            Location lastLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
//            addresses = geocoder.getFromLocation(lat, lon, 1);
//            //        String cityName = addresses.get(0).getAddressLine(0);
//            //        String countryName = addresses.get(0).getAddressLine(2);
//            address= addresses.get(0).getAddressLine(0);
            point.setLat(lastLocation.getLatitude());
            point.setLon(lastLocation.getLongitude());

        } catch (NullPointerException | SecurityException e) {
            e.printStackTrace();
        }

        return point;

我做错了什么?它适用于Android Api 23-

What I did wrong? It works in Android Api 23-

UPD:

NPE:

 ActivityCompat.requestPermissions(getActivity(), new String[] {
                            Manifest.permission.ACCESS_FINE_LOCATION,
                            Manifest.permission.ACCESS_COARSE_LOCATION },
                    1);

SecurityException

    LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

推荐答案

如果为棉花糖(Android api 23或更高版本)赋予了运行时位置权限，则应该获取位置信息，

You should do get location work if runtime location permissions are given for marshmallow(android api 23 or above), check this:

这行代码

Location lastLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

这里将向您显示安全异常代码中的错误，并要求在各处使用运行时权限代码作为代码，而不必担心您可以使用此错误信息执行构建.

here will show you error in code for security exception and ask to use runtime permission code everywhere for code, no need to worry you can execute the build with this error info.

private void checkRuntimePermissions(){
        if (ActivityCompat.checkSelfPermission(context,
                Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {
            try {
                ActivityCompat.requestPermissions(getActivity(), new String[] {
                                Manifest.permission.ACCESS_FINE_LOCATION,
                                Manifest.permission.ACCESS_COARSE_LOCATION },
                        1);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }else{
            getMyLocation();
        }
    }

    private PointDTO getMyLocation(){
        PointDTO point = new PointDTO();
        try {
            LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
            Location lastLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
//            addresses = geocoder.getFromLocation(lat, lon, 1);
//            //        String cityName = addresses.get(0).getAddressLine(0);
//            //        String countryName = addresses.get(0).getAddressLine(2);
//            address= addresses.get(0).getAddressLine(0);
            point.setLat(lastLocation.getLatitude());
            point.setLon(lastLocation.getLongitude());

        } catch (NullPointerException | SecurityException e) {
            e.printStackTrace();
        }

        return point;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case REQ_ACCESS_COARSE_LOCATION:
            case REQ_ACCESS_FINE_LOCATION: {
                // If request is cancelled, the result arrays are empty.
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    // permission was granted, yay! 
                    checkRuntimePermissions();
                } else {
                    //do other operation because permission not given
                }
                return;
            }
        }
    }

这篇关于Android 6.0 getLastKnowLocationPermission的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！