Suppose I have an activity to select an image from the gallery, and retrieve it as a BitMap, just like the example: here
Now, I want to pass this BitMap to be used i
As suggested by @EboMike I saved the bitmap in a file named myImage in the internal storage of my application not accessible my other apps. Here's the code of that part:
public String createImageFromBitmap(Bitmap bitmap) {
String fileName = "myImage";//no .png or .jpg needed
try {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
FileOutputStream fo = openFileOutput(fileName, Context.MODE_PRIVATE);
fo.write(bytes.toByteArray());
// remember close file output
fo.close();
} catch (Exception e) {
e.printStackTrace();
fileName = null;
}
return fileName;
}
Then in the next activity you can decode this file myImage to a bitmap using following code:
Bitmap bitmap = BitmapFactory.decodeStream(context
.openFileInput("myImage"));//here context can be anything like getActivity() for fragment, this or MainActivity.this
Note A lot of checking for null and scaling bitmap's is ommited.