com.bumptech.glide.load.resource.bitmap.ResourceBitmapDecoder Maven / Gradle / Ivy
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package com.bumptech.glide.load.resource.bitmap;
import android.content.ContentResolver;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.bumptech.glide.load.Options;
import com.bumptech.glide.load.ResourceDecoder;
import com.bumptech.glide.load.engine.Resource;
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.drawable.ResourceDrawableDecoder;
import com.bumptech.glide.request.target.Target;
/**
* Decodes {@link Bitmap}s from resource ids.
*
* The framework will decode some resources as {@link Drawable}s that do not wrap {@link
* Bitmap}s. This decoder will attempt to return a {@link Bitmap} for those {@link Drawable}s anyway
* by drawing the {@link Drawable} to a {@link Canvas}s using the {@link Drawable}'s intrinsic
* bounds or the dimensions provided to {@link #decode(Uri, int, int, Options)}.
*
*
For non-{@link Bitmap} {@link Drawable}s that return {@code <= 0} for {@link
* Drawable#getIntrinsicWidth()} and/or {@link Drawable#getIntrinsicHeight()}, this decoder will
* fail if the width and height provided to {@link #decode(Uri, int, int, Options)} are {@link
* Target#SIZE_ORIGINAL}.
*/
public class ResourceBitmapDecoder implements ResourceDecoder {
private final ResourceDrawableDecoder drawableDecoder;
private final BitmapPool bitmapPool;
public ResourceBitmapDecoder(ResourceDrawableDecoder drawableDecoder, BitmapPool bitmapPool) {
this.drawableDecoder = drawableDecoder;
this.bitmapPool = bitmapPool;
}
@Override
public boolean handles(@NonNull Uri source, @NonNull Options options) {
return ContentResolver.SCHEME_ANDROID_RESOURCE.equals(source.getScheme());
}
@Nullable
@Override
public Resource decode(
@NonNull Uri source, int width, int height, @NonNull Options options) {
Resource drawableResource = drawableDecoder.decode(source, width, height, options);
if (drawableResource == null) {
return null;
}
Drawable drawable = drawableResource.get();
return DrawableToBitmapConverter.convert(bitmapPool, drawable, width, height);
}
}