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 }
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
You are on the right track, however you are trying to do two things at once: read the file in and scale it to the appropriate size. The first step is to read the file to a Bitmap slightly bigger than you require, using BitmapFactory.Options.inSampleSize to ensure that you do not consume excessive memory reading … Read more
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
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