January 18, 2021

How to Request a Run Time Permission – Android Studio Tutorial



In this video we will learn, how to request a dangerous READ_EXTERNAL_STORAGE permission at run time, which is necessary since Android 6.0 (Marshmallow), whereas before this permission would be granted at the installation process. For this we will use the checkSelfPermission and requestPermissions methods and show a rationale to the user at the appropriate time with the shouldShowRequestPermissionRationale method.

Source code:

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Comments
  • private void isPermissionGranted(){

    if (ContextCompat.checkSelfPermission(getContext(), Manifest.permission.READ_EXTERNAL_STORAGE)==PackageManager.PERMISSION_GRANTED){

    Toast.makeText(getContext(), "PERMISSION GRANTED", Toast.LENGTH_SHORT).show();

    } else {

    requestStoragePermission();

    }

    }

    void requestStoragePermission(){

    if(shouldShowRequestPermissionRationale(Manifest.permission.READ_EXTERNAL_STORAGE)){

    new AlertDialog.Builder(getContext())

    .setTitle("Permission needed")

    .setMessage("This permission is needed because of")

    .setPositiveButton("OK", new DialogInterface.OnClickListener() {

    @Override

    public void onClick(DialogInterface dialogInterface, int i) {

    requestPermissions(new String[] {Manifest.permission.READ_EXTERNAL_STORAGE}, PERMISSIONS_CODE);

    }

    })

    .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

    @Override

    public void onClick(DialogInterface dialogInterface, int i) {

    dialogInterface.dismiss();

    }

    }).create().show();

    } else {

    requestPermissions(new String[] {Manifest.permission.READ_EXTERNAL_STORAGE}, PERMISSIONS_CODE);

    }

    }

  • Can I show alert dialog here,after user click on don't ask again and deny also, share the code please, it would be very helpful to me

  • Works on Android studio but not in real device ?
    And can you please tell why am i not getting JSON data from web in my real device but I get it on Android studio?

  • /storage/emulated/0/Download/2020-03-30 19:32:03.pdf: open failed: EACCES (Permission denied)
    What this error means and how to solve it.

  • Would you please do a video on how to delete a sent SMS from inside your app, also how to grant permissions for apps that have multiple activities which require permissions. Thanks in advance….great video!

  • does every runtime, X permission will be prompted to the user?, or just once?, i mean if user grant X permission, in the next user open the app, will X permission is requested again, and again and again ??

  • I'm unable to import android.support.v4.content.ContextCompat. I just have android.support.v4. app/graphics/os.
    Does anyone has an idea?

  • Bro, when I click the button I am getting permission denied and after that, the accept/deny popup appears…..
    can you please say what mistake has happened here??

  • phisitja เล่นดนตรีสนุกๆ พิสิฏฐ์ ศรีวิลาศ ฟลุ๊ก fluke says:

    thank

  • it doesn't work when i try typing in the context part it turns red and wont compile and send my app to my samsung galaxy j3 aura for testing and i am using android studio now

    i tried the one on google's android development website too and it did not work either but i knew it wasn't going to because none of their code works

  • 8:06 I CAN'T UNDERSTAND WHAT U SAID IN IF STATEMENT THIS IS VERY HARD WHY YOU ARE CHECKING LENGTH AND WHY [0] , I DONT UNDERSTAND THIS WHOLE LINE…..
    PLEASE EXPLAIN IN COMMENT IN EASIER WAY !!!!!!!

  • I wish I had your knowledge.. I will ask a question that I hope is not too nooby as I am a beginner: Why do you pass MainActivity.this as context on some methods and just this on others?
    Ok sorry two more questions if I may…
    Do you have any tutorial recommendations to understand the whole Context concept?
    Are you German or from any German-speaking country?
    Love your videos btw.. I'll hopefully pass my Android exam thanks to you.
    In case third question is a yes… Danke schön und viele grüße aus Singapore!

  • Great tut. For anyone interested in going one step further and detect if Don't ask again was pressed I have found very interesting and clear the following Medium article: just search in Google 'Method to detect if user has selected “Don’t Ask Again” while requesting for permission'

  • Thanks man. Very clear explanation. I'm currently working on my Android App Exams and this video was very helpfull. (we are allowed to use any outside sources) Now all i have to do is add an Intent to the same button.

    Btw it might be an idea to add the code in the description.

  • my activity.main doesn't opening like that, when i open activity.main it will open preview what happenning?? help

    note* I am learning from today

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