Android Question File.Copy does not seem to work

[sdixon]

Worked fine in v5.8, upgraded to v6 and now suddenly with the following code

If File.Exists(File.DirAssets, Starter.msSQLFileName) Then
            File.Copy(File.DirAssets, Starter.msSQLFileName, File.DirDefaultExternal, Starter.msSQLFileName)
          End If

It checks to see if the file exists, which it does, then when it goes to copy the file I get the following

** Activity (main) Resume **
Installing file.
** Activity (main) Pause, UserClosed = false **
PackageAdded: package:com.unicornsystemz.totalbeautychat
** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 72 (Main)
java.io.FileNotFoundException: /storage/emulated/0/Android/data/com.unicornsystemz.totalbeautychat/files/totalbeautychat.sqlite: open failed: ENOENT (No such file or directory)
    at libcore.io.IoBridge.open(IoBridge.java:452)
    at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
    at anywheresoftware.b4a.objects.streams.File.OpenOutput(File.java:370)
    at anywheresoftware.b4a.objects.streams.File.Copy(File.java:336)
    at com.unicornsystemz.totalbeautychat.main._activity_create(main.java:440)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:703)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:340)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:247)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
    at com.unicornsystemz.totalbeautychat.main.afterFirstLayout(main.java:102)
    at com.unicornsystemz.totalbeautychat.main.access$000(main.java:17)
    at com.unicornsystemz.totalbeautychat.main$WaitForLayout.run(main.java:80)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:158)
    at android.app.ActivityThread.main(ActivityThread.java:7229)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
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)
    ... 20 more
** Activity (main) Resume **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **

Is this a bug in v6 or am I doing something wrong?

Thanks

 

[sdixon]

Foolishly set android:targetSdkVersion="23" and didn't realize I needed run-time permissions. And so we learn

 

[Erel]

Note that you don't really need to use any run time permission for this. Just replace File.DirDefaultExternal with RuntimePermission.GetSafeDirDefaultExternal (and make sure to add the permission for older devices: https://www.b4x.com/android/forum/threads/runtime-permissions-android-6-0-permissions.67689/#content).

 

[sdixon]

Thanks, I did that and it worked.