public class CenterCrop extends BitmapTransformation
|Constructor and Description|
|Modifier and Type||Method and Description|
A method to get a unique identifier for this particular transformation that can be used as part of a cache key.
Transforms the given
public CenterCrop(Context context)
public CenterCrop(BitmapPool bitmapPool)
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight)
Bitmapbased on the given dimensions and returns the transformed result.
The provided Bitmap, toTransform, should not be recycled or returned to the pool. Glide will automatically recycle and/or reuse toTransform if the transformation returns a different Bitmap. Similarly implementations should never recycle or return Bitmaps that are returned as the result of this method. Recycling or returning the provided and/or the returned Bitmap to the pool will lead to a variety of runtime exceptions and drawing errors. See #408 for an example. If the implementation obtains and discards intermediate Bitmaps, they may safely be returned to the BitmapPool and/or recycled.
outWidth and outHeight will never be
class converts them to be the size of the Bitmap we're going to transform before calling this method.
BitmapPoolthat can be used to obtain and return intermediate
Bitmaps used in this transformation. For every
Bitmapobtained from the pool during this transformation, a
Bitmapmust also be returned.
outWidth- The ideal width of the transformed bitmap (the transformed width does not need to match exactly).
outHeight- The ideal height of the transformed bitmap (the transformed heightdoes not need to match exactly).
public String getId()
If this transformation does not affect the data that will be stored in cache, returning an empty string here is acceptable.