LAMW  permission.WRITE_EXTERNAL_STORAGE
lazarus / 43-Android

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microb · 2022-09-14 17:09

Hello
I use lamw4 on linux to create the application.
how to modify the
WRITE_EXTERNAL_STORAGE permission
thank you

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microb · 2022-09-15 14:19

this is my source code,but  permission is alway denied.

       procedure TAndroidModule1.AndroidModule1JNIPrompt(Sender:
TObject);
    var
      manifestPermissions: TDynArrayOfString;
    begin
      //https://www.captechconsulting.com/blogs/runtime-permissions-
best-practices-and-how-to-gracefully-handle-permission-removal
      //https://developer.android.com/guide/topics/security/permission
s#normal-dangerous
      if  IsRuntimePermissionNeed() then   // that is, target API >=
23
      begin
        if IsRuntimePermissionGranted('android.permission.CAMERA') and
           IsRuntimePermissionGranted('android.permission.WRITE_EXTERN
AL_STORAGE') then
        begin
          ShowMessage('Good ... we have runtime permissions !');
        end
        else
        begin
          ShowMessage('warning: Requesting Runtime Permission....
please, wait..');
          SetLength(manifestPermissions, 2);

          manifestPermissions[0]:= 'android.permission.CAMERA'; 
//from AndroodManifest.xml
          manifestPermissions[1]:=
'android.permission.WRITE_EXTERNAL_STORAGE'; //from
AndroodManifest.xml

          Self.RequestRuntimePermission(manifestPermissions, 1101);

          SetLength(manifestPermissions, 0);
        end;
      end;
    end;

    procedure TAndroidModule1.AndroidModule1RequestPermissionResult(
      Sender: TObject; requestCode: integer; manifestPermission:
string;
      grantResult: TManifestPermissionResult);
    begin
       case requestCode of
         1101:begin
                if manifestPermission = 'android.permission.CAMERA'
then
                begin
                    {
                    if grantResult = PERMISSION_GRANTED  then
                      ShowMessage('Success! ['+manifestPermission+']
Permission grant!!! ' )
                    else  //PERMISSION_DENIED
                       ShowMessage('Sorry... ['+manifestPermission+']
DENIED... ' );
                    }
                end;

                if manifestPermission =
'android.permission.WRITE_EXTERNAL_STORAGE' then
                begin

                    if grantResult = PERMISSION_GRANTED  then
                       ShowMessage('Success! ['+manifestPermission+']
Permission grant!!! ' )
                    else  //PERMISSION_DENIED
                       ShowMessage('Sorry... ['+manifestPermission+']
Permission not grant... ' );

                end;
         end;
      end;
    end;

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jmpessoa · 2022-09-15 16:56

Hi, microb!

What is your Android system version?

You need "Camera", too?


Please, put here your "AndroidManifest.xml" file....

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microb · 2022-09-15 18:53

Thanks a lot
My android version is 12
the camera no.

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jmpessoa · 2022-09-15 21:23

From your "AndroidManifest.xml" ....

Quote <uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="28"/>

That is, "android.permission.WRITE_EXTERNAL_STORAGE"   is possible
only until Android 9!

(you can try configure  your project  "targetApi = 28")


In which folder/path do you want save or load your files?

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microb · 2022-09-16 06:08

(you can try configure  your project  "targetApi = 28")

how ?


my file for example :
assignfile(fradars,'/storage/emulated/0/Download/radars1');

for information: my application works well on android 4.4

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microb · 2022-09-22 14:09

hello
if I name my file radars1.jpg I can read it.
in android settings application permissions I have permission only for
files and multimedia content.
I don't have the option for all files.
how to do.