LAMW - open existing file into a filestream (fmopenread - solved,
android 10)
lazarus / 43-Android

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Mongkey · 2021-05-18 06:11

Is there any method for opening exsisting file into stream format?

->Permission
->Newstream:=TFilestream.create('existing file a',fmopenread);
->error

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loaded · 2021-05-18 06:56

Quote from: Mongkey on May 18, 2021, 08:11:42 amIs there any method
for opening exsisting file into stream format?

LAMW is a blessing. Whatever you look for is there 

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i procedure
TAndroidModule1.AndroidModule1JNIPrompt(Sender: TObject);begin if IsRu
ntimePermissionGranted('android.permission.WRITE_EXTERNAL_STORAGE') =
False then    Self.RequestRuntimePermission('android.permission.WRITE_
EXTERNAL_STORAGE',1001);end;  procedure
TAndroidModule1.jButton1Click(Sender: TObject);var 
Stream:TFileStream;  StreamFilePath: string; begin  if IsRuntimePermis
sionGranted('android.permission.WRITE_EXTERNAL_STORAGE') then  begin 
 StreamFilePath:=
Self.GetEnvironmentDirectoryPath(dirDownloads)+'/'+'123.mp4';   
Stream:=TFileStream.Create(StreamFilePath,fmOpenRead or
 fmShareDenyNone);    // You can use TReadBufStream to read at higher
speeds. Ex: Fastspeedstream:=TReadBufStream.Create(Stream);   
ShowMessage(inttostr(Stream.Size));    Stream.Free;  end  else
 Showmessage('Sorry.. "WRITE_EXTERNAL_STORAGE"  DENIED ...');end;

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Mongkey · 2021-05-18 08:55

I wrote same script like yours -> failed   , may be need more coffee
to find the solution.

Have you try on android 10?

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loaded · 2021-05-18 16:39

I tried it on Android 8 and 11, it was working without any problems.
As you said yes, there were 10 problems, but when I added the
following parameter to the manifest file, it worked without any
problems.
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
<application ......  android:requestLegacyExternalStorage="true"
...... >

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jmpessoa · 2021-05-18 17:52

@loaded

Quotebut when I added the following parameter to the manifest file...

Nice!

I will update/fix LAMW manifest template!

Thank you!

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Mongkey · 2021-05-19 02:36

, thanks, i forgot my apps was not ready for local sandboxing on
android 10 

i was also updated xml support provider path for android 10.

it was very useful on android 10, for creating custom media database
on sdcard from direct shoot camera, existing image etc.

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jmpessoa · 2021-05-19 16:07

Quotei was also updated xml support provider ...

What LAMW file you changed?

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Mongkey · 2021-05-19 23:41

Res -> xml -> file provider setting

This setting has deal with camera  or file access i not mistaken