Is there a way to check for manifest permission from code?

Question

How do I check for a specific permission in the manifest.xml from code? I want to throw some exception if some permissions that are necessay for my application are missing.

Answer 1

You can read the available <uses-permission> tags at runtime using the following. Tested on older Android versions AND Android 6 and 7

PackageManager pm = getPackageManager();
try
{
    PackageInfo packageInfo = pm.getPackageInfo(getPackageName(), PackageManager.GET_PERMISSIONS);
    String[] requestedPermissions = null;
    if (packageInfo != null) {
        requestedPermissions = packageInfo.requestedPermissions;
    }

    if (requestedPermissions != null && requestedPermissions.length > 0)
    {
        List<String> requestedPermissionsList = Arrays.asList(requestedPermissions);
        ArrayList<String> requestedPermissionsArrayList = new ArrayList<String>();
        requestedPermissionsArrayList.addAll(requestedPermissionsList);

        Log.i(ExConsts.TAG, ""+requestedPermissionsArrayList);
    }
}
catch (PackageManager.NameNotFoundException e)
{
    e.printStackTrace();
}

Answer 2

You can check whether the permission is granted or not for specific permission by using PackageManager. For example

    PackageManager pm = getPackageManager();
    if (pm.checkPermission(permission.FINE_LOCATION, getPackageName()) == PackageManager.PERMISSION_GRANTED) {
        // do something
    } else {
        // do something
    }