I want to let the user choose how much they want to reduce the image file size by, could be low, medium or high then upload the image to a server That part is easy.
Next part is the actual reduction of file size. I'm getting the image URI, I want to reduce the file image file size, the image type could be png, jpg or something else.
I'm aware of Bitmap.compress()
, is this the only way to implement or is there an existing open source library?
Bitmap bitmap;
bitmap = MyBitmapFactory.decodeFile(PATHTOPICT, UPLOAD_REQUIRED_SIZE);
if (bitmap != null) {
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
with the method (found with google):
public static Bitmap decodeFile(String filePath, final int REQUIRED_SIZE) {
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, o);
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp <= REQUIRED_SIZE && height_tmp <= REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
Bitmap bitmap = BitmapFactory.decodeFile(filePath, o2);
return bitmap;
}
if something get NULL, its no image/ . scale by power 2 is recommended!!!
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