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Hi This code is based on a response I got about something else I needed about files, fetch & promise. Anyway.. The code below will check if a file exists and return true / false. I need the file check to trap & report an error if the file does not exist. private Sub FileExist(fn... - checking a file on assets directory. Dim fe As Boolean = BANano.Await(FileExist("./assets/dbFile.sql")) Have Fun....

The need arose within a library to know if there was a Font in the DirAssets. I didn't know if the developer had uploaded the font to the App, but if he didn't, the library would crash. How to do? This was the solution Private Sub FontExist(FileName As String) As Boolean 'If File.Exists(File.DirAssets, "ftypes") Then Return True Dim r As Reflector r.Target = Me...("getResourceAsStream", "/Files/" & FileName, "java.lang.String") If In...

hi i am running a check if a file exists in the file dirassests folder but I am getting FALSE even though the file exists! 116183 Waiting for debugger to connect... Program started. file exists...
link: From the help: Returns true if the specified FileName exists in the specified Dir. Note...
link: ok found the answer: https://www.b4x.com/android/forum/threads/load-image-or-file-from-jar.38215...
link: Then I tested your project with older B4J versions, even with B4J version 7.51 and it always return...

right and wrong path for File.Exist, but it seems to work ok in any case. Here it is my testing... True altough a forwarding slash is used Log("Image exists : " & File.Exists(DataFolder...
link: If you want to know the correct separator for the os system, use log(GetSystemProperty("file...
link: File.Exists(DataFolder&"/images", "test.png")) udg...
link: . it just seems to merge both with (back)slash correction. the only issue I got so far with file...

Hi File.Exists(File.DirApp, "") returns true, bug? Thanks...
link: true if the specified FileName exists (file or folder) in the specified Dir." The full path...
link: Sorry but the online help says: "Return true if the specified FileName exists in the specified...
link: Well, that was 3 reactions in the same minute :D...

Hi I am reading a file from the assets folder, with an existing file all is good. Thing is, I specified an non-existing file, so that I can trap if an error happens, yet the "res" returns... File Does not exist response. 146985... As Object Dim err As Object Dim ab As BANanoPromise = BANano.GetFileAsArrayBuffer...
link: That method assumes the file exists. But it's not that hard to write one that does catch it if...

Hello, When I check if a folder exists with File.Exists(Dir, "") if the folder doesn't exist, my app freezes for 5 to 10 seconds. The folder is on a remote computer. Is there a way...
link: Update: I tested it. It works. Great, thank you! will include several async methods That sounds awe...
link: which can be used as an alternative to File.Exists and it will not block the main thread....
link: Update: I tested it. It works....

Hello, I think it's a problem with my Synology NAS. TMP files are created somewhere there and cause problems. On a regular SSD/HDD it is possible to create a package....
link: anywhere. Where is the error? Running: C:\Java\bin\jar java.nio.file.FileAlreadyExistsException...

You cannot use Wait For unless there is an event that is raised when the file is ready. You can decrease the sleep interval. Using Sleep is a good solution in this case....
link: upload.... now i want to use "wait for" instead of sleep to checking file exist without...

the list of files from this folder and check if it is "empty". dim flist as List = File.ListFiles(folder) Note that it also contains Files like "." or ".."...
link: the file.listfiles method, and then checking for the list.size property to verify. But this supposes...
link: I dont think you can use wildcard for the filename.....
link: Hello I have a question about the file.exists method. Is it possible to use that method to check...