Android: how to delete internal image file
What i want to do: delete an image file from the private internal storage in my app. I save images in internal storage so they are deleted on app uninstall.
I have successfully created and saved:
String imageName = System.currentTimeMillis() + ".jpeg";
FileOutputStream fos = openFileOutput(imageName, Context.MODE_PRIVATE);
bitmap.compress(Bitmap.CompressFormat.JPEG, 35, fos);
an image that i receive through
bitmap = BitmapFactory.decodeStream(inputStream);
I am able to retrieve the image later for display:
FileInputStream fis = openFileInput(imageName);
ByteArrayOutputStream bufStream = new ByteArrayOutputStream();
DataOutputStream outWriter = new DataOutputStream(bufStream);
int ch;
while((ch = fis.read()) != -1)
outWriter.write(ch);
outWriter.close();
byte[] data = bufStream.toByteArray();
bufStream.close();
fis.close();
imageBi开发者_StackOverflowtmap = BitmapFactory.decodeByteArray(data, 0, data.length);
I now want to delete this file permanently. I have tried creating a new file and deleting it, but the file is not found:
File file = new File(imageName);
file.delete();
I have read on the android developer website that i must open private internal files using the openFileInput(...)
method which returns an InputStream allowing me to read the contents, which i don't really care about - i just want to delete it.
can anyone point me in the right direction for deleting a file which is stored in internal storage?
Erg, I found the answer myself. Simple answer too :(
All you have to do is call the deleteFile(imageName)
method.
if(activity.deleteFile(imageName))
Log.i(TAG, "Image deleted.");
Done!
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