I haven’t tried to do what you describe there, but presumably it could be done and might work — with a few caveats. First, the external storage (SD card) is not secure, so any other application, or the user, could read/write to it. Second, as you noted, when it’s unmounted the DB goes away. Because … Read more
How to get the internal and external sdcard path in android Methods to store in Internal Storage: File getDir (String name, int mode) File getFilesDir () Above methods are present in Context class Methods to store in phone’s internal memory: File getExternalStorageDirectory () File getExternalFilesDir (String type) File getExternalStoragePublicDirectory (String type) In the beginning, everyone … Read more
Single File/Folder using pull: adb pull “/sdcard/Folder1” Output: adb pull “/sdcard/Folder1” pull: building file list… pull: /sdcard/Folder1/image1.jpg -> ./image1.jpg pull: /sdcard/Folder1/image2.jpg -> ./image2.jpg pull: /sdcard/Folder1/image3.jpg -> ./image3.jpg 3 files pulled. 0 files skipped. Specific Files/Folders using find from BusyBox: adb shell find “/sdcard/Folder1” -iname “*.jpg” | tr -d ‘\015’ | while read line; do adb … Read more
Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT,getResources().getString(R.string.emlSendToFriendSubject)); emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL,new String[]{emailto}); emailIntent.setType(“text/plain”); emailIntent.putExtra(android.content.Intent.EXTRA_TEXT,getResources().getString(R.string.emlSendToFriendBody)); File file = getFileStreamPath(EMAIL_TEMP_FILE); emailIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); emailIntent.setType(“image/jpeg”); emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(“file://”+file.getAbsolutePath())); startActivityForResult(Intent.createChooser(emailIntent, getResources().getString(R.string.btnSendToFriend)),ActMain.EMAIL_DONE);
Any file stored on the SD card is accessible both by applications running on the phone, and by users who have mounted the SD card (both while it’s in the phone and otherwise). You can change the file properties to make it ‘hidden’, but it will still be easily found. There is no way to … Read more
There is an open-source RecursiveFileObserver that works just as the normal FileObserver should … I am using it currently it is what it is named , it acts as a FileObserver that is recursive for all directories beneath the directory you chose … Here is it : public class RecursiveFileObserver extends FileObserver { public static … Read more
If you use Environment.getExternalStorageDirectory() (or Context.getExternalFilesDir() for API level 8 and up) as the place for your json file, then I believe the size will be limited by the available space in the external storage (usually an SD card). For most devices, I believe there are no fixed limits built into Android for external file … Read more
I’ve found that phones, like the Galaxy phones from Samsung, have /mnt/sdcard point to internal memory and not the external SD card as expected. You can know if the path returned by Environment.getExternalStorageDirectory() is actually the external SD card with a call to Environment.isExternalStorageRemovable() Just wanted to add from the docs for getExternalStorageDirectory() this important … Read more
Go through the following code , its working fine for me. private void createDirectoryAndSaveFile(Bitmap imageToSave, String fileName) { File direct = new File(Environment.getExternalStorageDirectory() + “/DirName”); if (!direct.exists()) { File wallpaperDirectory = new File(“/sdcard/DirName/”); wallpaperDirectory.mkdirs(); } File file = new File(“/sdcard/DirName/”, fileName); if (file.exists()) { file.delete(); } try { FileOutputStream out = new FileOutputStream(file); imageToSave.compress(Bitmap.CompressFormat.JPEG, 100, … Read more
I would rather use a BitmapFactory to decode the Image from the file-path: Bitmap bitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath()); jpgView.setImageBitmap(bitmap); The Docs say: If the specified file name is null, or cannot be decoded into a bitmap, the function returns null. Can you check if the code works with another image and if you can open your … Read more