I had been having the exact same problem! To get the internal SD card you can use String extStore = System.getenv(“EXTERNAL_STORAGE”); File f_exts = new File(extStore); To get the external SD card you can use String secStore = System.getenv(“SECONDARY_STORAGE”); File f_secs = new File(secStore); On running the code extStore = “/storage/emulated/legacy” secStore = “/storage/extSdCarcd” works … Read more
Boolean isSDPresent = android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED); Boolean isSDSupportedDevice = Environment.isExternalStorageRemovable(); if(isSDSupportedDevice && isSDPresent) { // yes SD-card is present } else { // Sorry }
If you are using Eclipse you can move files to and from the SD Card through the Android Perspective (it is called DDMS in Eclipse). Just select the Emulator in the left part of the screen and then choose the File Explorer tab. Above the list with your files should be two symbols, one with … Read more
Today i came across one point where it is clearly defined that we can upload maximum 50MB sized APK onto the market. So indirectly, we can install an application from a market having maximum 50MB size. Here is a link: http://www.google.com/support/androidmarket/developer/bin/answer.py?hl=en&answer=113469 , here just check the below sentence. APK file size: Maximum supported size is … Read more
This code works for me! try { File sd = Environment.getExternalStorageDirectory(); File data = Environment.getDataDirectory(); if (sd.canWrite()) { String currentDBPath = “//data//{package name}//databases//{database name}”; String backupDBPath = “{database name}”; File currentDB = new File(data, currentDBPath); File backupDB = new File(sd, backupDBPath); if (currentDB.exists()) { FileChannel src = new FileInputStream(currentDB).getChannel(); FileChannel dst = new FileOutputStream(backupDB).getChannel(); dst.transferFrom(src, … Read more
Environment.getExternalStorageDirectory().getAbsolutePath() Gives you the full path the SDCard. You can then do normal File I/O operations using standard Java. Here’s a simple example for writing a file: String baseDir = Environment.getExternalStorageDirectory().getAbsolutePath(); String fileName = “myFile.txt”; // Not sure if the / is on the path or not File f = new File(baseDir + File.separator + … Read more
Environment.getExternalStorageState() returns path to internal SD mount point like “/mnt/sdcard” No, Environment.getExternalStorageDirectory() refers to whatever the device manufacturer considered to be “external storage”. On some devices, this is removable media, like an SD card. On some devices, this is a portion of on-device flash. Here, “external storage” means “the stuff accessible via USB Mass Storage … Read more