android - GPS 定位在 Mashmallow 版本中不起作用

Question

这是我的代码

@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        switch (requestCode) {
            case 1: {
                // If request is cancelled, the result arrays are empty.
                TrackGPS gps = new TrackGPS(this, DashboardActivity.this);
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//                    if (ActivityCompat.shouldShowRequestPermissionRationale(this,Manifest.permission.ACCESS_FINE_LOCATION)){
//
//                        Toast.makeText(this,"GPS permission allows us to access location data. Please allow in App Settings for additional functionality.",Toast.LENGTH_LONG).show();
//
//                    }

                    if (gps.canGetLocation()) {
                        double latitude = gps.getLatitude();
                        double logitude = gps.getLongitude();
                        System.out.println("latitude=" + latitude);
                        System.out.println("logitude=" + logitude);
                        city = getCity(latitude, logitude);

                        tvCity.setText(city);

                    }
                }
            }
        }

    }
}

通过 GPS 跟踪位置的权限相关问题。如何在使用 Marshmallow 等更高版本的设备时请求权限。

Answer 1

您现在可以在此处授予任何 list 权限 已授予读取和写入外部存储权限

public static final int MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE = 123;
        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
        public static boolean checkPermission(final Context context)
        {
            int currentAPIVersion = Build.VERSION.SDK_INT;
            if(currentAPIVersion>=android.os.Build.VERSION_CODES.M)
            {
                if (ContextCompat.checkSelfPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                    if (ActivityCompat.shouldShowRequestPermissionRationale((Activity) context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
                        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(context);
                        alertBuilder.setCancelable(true);
                        alertBuilder.setTitle("Permission necessary");
                        alertBuilder.setMessage("External storage permission is necessary");
                        alertBuilder.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
                            @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
                            public void onClick(DialogInterface dialog, int which) {
                                ActivityCompat.requestPermissions((Activity) context, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
                            }
                        });
                        AlertDialog alert = alertBuilder.create();
                        alert.show();
                    } else {
                        ActivityCompat.requestPermissions((Activity) context, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
                    }
                    return false;
                } else {
                    return true;
                }
            } else {
                return true;
            }