Android Question Saving And reading Text Files(Solved)

[Stichler]

I have a game that I want to save two basic pieces of info for resuming the game. They are LevelNumber and NumberOfHints. I can not seem to get this to work at all. I tried running just the following code to see if I can write anything and I'm getting the error that follows that

Code:
File.WriteString(File.DirRootExternal, "String.txt", "1")

Error:

Error occurred on line: 40 (Level1)
java.io.FileNotFoundException: /storage/emulated/0/String.txt (Permission denied)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:287)
at java.io.FileOutputStream.<init>(FileOutputStream.java:223)
at anywheresoftware.b4a.objects.streams.File.OpenOutput(File.java:448)
at anywheresoftware.b4a.objects.streams.File.WriteString(File.java:263)
at b4a.example.level1._activity_create(level1.java:375)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:735)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:360)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:260)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at b4a.example.level1.afterFirstLayout(level1.java:104)
at b4a.example.level1.access$000(level1.java:17)
at b4a.example.level1$WaitForLayout.run(level1.java:82)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6938)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
** Activity (level1) Resume **

 

[Geezer]

The first line of the crash is the PERMISSION DENIED.

Try a search for runtime permissions.

Or better, save the file to DirInternal so you don't need permissions.

 

[klaus]

Do you want to share these data with other programs?
If no, replace File.DirRootExternal by File.DirInternal.
Otherwise you need to define permission, as already suggested..

 

[Stichler]

If I save to DirInternal will it remain at all times? In other words when App exits, phone turns off etc? And ty by the way+

 

[Stichler]

Klaus,
No just for this program.

 

[klaus]

The File.DirIntrenal folder is accessible only by the application and remains as long as the program remains on the device.
If you delete the program from the device, the File.DirIntrenal folder will be lost.

 

[Stichler]

Ty all so much!