What methods can be used to obtain image sizes in Android?

In Android, you can get image dimensions in several ways:

• Using BitmapFactory.Options with inJustDecodeBounds: This method allows you to obtain the width and height of an image without loading the actual image into memory.

BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeResource(getResources(), R.drawable.image, options);
int width = options.outWidth;
int height = options.outHeight;

• Through a Bitmap object: If the image is already loaded into a Bitmap, you can get its dimensions using getWidth() and getHeight() methods.

Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.image);
int width = bitmap.getWidth();
int height = bitmap.getHeight();

• Using Drawable: If you have a Drawable, you can get its dimensions via getIntrinsicWidth() and getIntrinsicHeight().

Drawable drawable = getResources().getDrawable(R.drawable.image);
int width = drawable.getIntrinsicWidth();
int height = drawable.getIntrinsicHeight();

The choice of method depends on whether you just need to know the dimensions or work with the image itself.