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https://www.b4x.com/basic4android/images/SS-2018-03-05_11.16.42.png Before we start: External storage means a real sd card or a connected mass storage USB device. This class can also be used to access the secondary storage (File.DirRootExternal). This becomes relevant with newer versions of Android that restrict direct access. It has nothing to do with runtime permissions. You can use RuntimePermissions.GetAllSafeDirsExternal to directly access a specific folder on the SD card. You can use...

hi erel, in Android 4.4 it is only possible to write to the external SD card in a directory whose name Andoid / data / "apk name". But as it is created? monki....
link: You can use this code on Android 4.4 to find the paths of the app specific external storage paths: Sub Activity_Create(FirstTime As Boolean) Dim paths() As Object = GetContext.RunMethod("getE...

The rSD library allows reading and writing to SD cards. The Ethernet shield as well as other shields include a SD slot. The steps required to work with files: 1. Initialize a SD object. You need to... the data file. The data file is then manually copied to the sd card. This is the important code: For...
link: other pin just ensure you make corrected pin wiring with your board and SD Card module based on link...
link: How setup? SD.Initialize(MY_SCLK, MY_MISO, MY_MOSI, MY_CS);...

. Actual Arduino's SD-card class can open file only for READ, WRITE or APPEND. No TRUNCATE is possible... As Byte, YEAR As Byte End Sub Sub Start_SD(tag As Byte) If tag = 0 Then Log("Start SD...") Else Log("Try to re-start SD...") End If Dim res As Byte = RunNative("setup_sd", Null) If res = 0 Then Log("SD card - setup error..., line) End Sub #if C #include "FS.h" #include "SD.h" #include "SPI.h"...

Hi to All I have now met the problem to manage an External sd card. Reading the posts here I found... display the above mentioned message .. but .. no Sd card access anyway. At the end, what I need...
link: Hi to all. After all this coloured posts, here is the solution, (I guess): it is necessary to put th...
link: "Should not work" not "should not working" .. maybe someone looks at my english ...
link: Anyway, if my system were missing something, as the debug says: java.lang.ClassNotFoundException: a...

Android to ESP8266-ESP32 micro sd card (over network). Because I don't wanted to use an FTP library... on ESP SD Card, then B4A send the info string containing the file name, size and other stuff...
link: transfer files to ESP and it save to uSD card. I tried it with relatively big files, 30-40 MB and...
link: Because I just need to download a file, no need a full FTP library. Actually my app use 78% of ESP3...

. iSD_Scratchcard Author: Star-Dust Version: 0.03 PanelScratchCard Events: Click LongClick Touch (Action...I created a new view / panel that simulates the effect of scratch cards. Create a panel from code...
link: . SD_Scratchcard Author: Star-Dust Version: 0.03 PanelScratchCard Events: Click LongClick Touch (Action As Int...
link: Update rel. 0.03 - Added FillingPercentage method...
link: Update rel. 0.02 Added clear method...

current method to determine if a physical SD Card is fitted to the device? IE: If File.Exists...
link: "You" should try passing it something like this: final File file = new File("foo&qu...
link: "You" should try passing it something like this: final File file = new File("foo&quo...
link: 119081 Perhaps the problem is that we passed Null as the Path parameter. I can't but I would ...

Hello, In the theory you get with DirRootExternal the path of an external storage media or sd-card. Is that right? Because with me comes a completely different path out and try to save something under the path it saves it always on the device not on the SD. I add this permission to the manifest editor: AddPermission("android.permission.WRITE_EXTERNAL_STORAGE") And writeable is true. Or is there another way to save the sd card? All tutorials I have read have been based...

HI, All I read that path should be 8.3 format for FAT32. But ... how to mkdir("/year/month/day...
link: Ha ! RunNative("create_dir", "/00".GetBytes) RunNative("create_dir",...
link: ", "/t00/00/000000000002".GetBytes)) No one created. createDir(SD, "/t1/t2...
link: folder=/00/0000/000000 Such path cannot be created, tested...