Android Question [Resolved] Opening image files whose names are in Cyrillic

Sergey_New · Dec 11, 2020

Tried with ImageView and WebView - error (file not found). The files are located in the program folder.
Tell me, please, a solution.
The programs built into the emulator and the device open these files.

klaus · Dec 11, 2020

You should post your code!

LucaMs · Dec 11, 2020

klaus said:
You should post your code!

It is not necessary in this case. It seems that the problem is that in the file folder the file name is written in Cyrillic characters and this creates problems.

Sergey_New · Dec 11, 2020

The simplest code:

B4X:

Dim photo As ImageView
photo.Bitmap = LoadBitmap(folder, filename)

Or

B4X:

Dim wV As WebView
wV.LoadHtml ("<html><body style='margin: 0px; padding: 0px'><img src='" & folder & filename & "' width='200' /></body></html>")

Sergey_New · Dec 11, 2020

LucaMs said:
file name is written in Cyrillic characters

This is true

LucaMs · Dec 11, 2020

Can you upload (post/attach) one file? Otherwise I have to search for one online, to test it

LucaMs · Dec 11, 2020

Stackoverflow (can help?):

Sergey_New · Dec 11, 2020

Нет проблем)

LucaMs · Dec 11, 2020

What is the value of "folder" variable? If it is File.DirAssets it will not work.
This works:

B4X:

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
    File.Copy(File.DirAssets, "Кеннеди.jpg", File.DirInternal, "Кеннеди.jpg")
End Sub

Sub Button1_Click
    Dim folder As String = File.DirInternal
    Dim FileName As String ="Кеннеди.jpg"

    Dim Html As String = $"<html><body style='margin: 0px; padding: 0px'><img src='${folder}/${FileName}' width='200' /></body></html>"$
    WebView1.LoadHtml (Html)
End Sub

klaus · Dec 11, 2020

The code below works fine for me:

B4X:

    Private FileName = "Кеннеди.jpg" As String
    photo.Bitmap = LoadBitmap(File.DirAssets, FileName)

LucaMs · Dec 11, 2020

klaus said:
The code below works fine for me:

B4X:

Private FileName = "Кеннеди.jpg" As String photo.Bitmap = LoadBitmap(File.DirAssets, FileName)

Yes, it's the first test I've done too. The problem is that with the HTML code and the WebView, it doesn't work if you use DirAssets directly.

Sergey_New · Dec 11, 2020

My application creates a folder of programs:

B4X:

File.MakeDir (File.DirRootExternal, Starter.ProgName)
File.MakeDir (File.DirRootExternal & "/" & Starter.ProgName, "Медиа")

The image files are located in the "Медиа" folder.

klaus · Dec 11, 2020

Are you sure that you don't have permission problems?
For sure, the problem is not the fact that the file name is in Cyrillic.

Sergey_New · Dec 11, 2020

I'm sure. Files in Latin are read normally.

klaus · Dec 11, 2020

Well, I tested as above and I tested also with:

B4X:

wV.LoadHtml ("<html><body style='margin: 0px; padding: 0px'><img src='" & Folder & FileName & "' width='200' /></body></html>")

I don't get any error "File not found" ?!
The only problem is that nothing is displayed in the WebView.
I also copied the file from File.DirAssets to File.DirInternal, no error and nothing is displayed.

You should post the full error message.

LucaMs · Dec 11, 2020

klaus said:
Well, I tested as above and I tested also with:

B4X:

wV.LoadHtml ("<html><body style='margin: 0px; padding: 0px'><img src='" & Folder & FileName & "' width='200' /></body></html>")

I don't get any error "File not found" ?!
The only problem is that nothing is displayed in the WebView.
I also copied the file from File.DirAssets to File.DirInternal, no error and nothing is displayed.

You should post the full error message.

Sergey_New · Dec 11, 2020

klaus, when using ImageView:

java.io.FileNotFoundException: /storage/emulated/0/Поколения/Медиа/кеннеди.jpg: open failed: ENOENT (No such file or directory)
at libcore.io.IoBridge.open(IoBridge.java:452)
at java.io.FileInputStream.<init>(FileInputStream.java:76)
at anywheresoftware.b4a.objects.streams.File.OpenInput(File.java:214)
at anywheresoftware.b4a.objects.drawable.CanvasWrapper$BitmapWrapper.Initialize(CanvasWrapper.java:516)
at anywheresoftware.b4a.keywords.Common.LoadBitmap(Common.java:1342)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:197)
at anywheresoftware.b4a.debug.Debug.delegate(Debug.java:262)
at sv.bystrovzorov.datamedia._openimg(datamedia.java:886)
at sv.bystrovzorov.datamedia._setmedia(datamedia.java:974)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA$2.run(BA.java:387)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
at libcore.io.Posix.open(Native Method)
at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
at libcore.io.IoBridge.open(IoBridge.java:438)

And when using WebView, the image is not shown.

LucaMs · Dec 11, 2020

Sergey_New said:
java.io.FileNotFoundException: /storage/emulated/0/Поколения/Медиа/кеннеди.jpg: open failed: ENOENT (No such file or directory)

The full file path is not correct (or you have not requested permission to access the DirRootExternal; read this / watch the video).

Do you really need to use DirRootExternal?

LucaMs · Dec 11, 2020

Select RuntimePermissions library.

Sergey_New · Dec 11, 2020

LucaMs said:
The full file path is not correct

Files in Latin are read normally.

Android Question [Resolved] Opening image files whose names are in Cyrillic

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