android 自适应宽度加载图片

Glide工具类，自适应宽度加载图片。保持图片的长宽比例不变，通过修改imageView的高度来完全显示图片

public class GlideUtils {
/**
 * 自适应宽度加载图片。保持图片的长宽比例不变，通过修改imageView的高度来完全显示图片。
 */
public static void loadIntoUseFitWidth(Context context, final String imageUrl, int errorImageId, final ImageView imageView) {

    Glide.with(context)
            .load(imageUrl)
            .diskCacheStrategy(DiskCacheStrategy.ALL)
            .listener(new RequestListener<Drawable>() { // 加载监听
                @Override
                public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
                    return false;
                }

                @Override
                public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
                    if (imageView == null) {
                        return false;
                    }
                    if (imageView.getScaleType() != ImageView.ScaleType.FIT_XY) {
                        imageView.setScaleType(ImageView.ScaleType.FIT_XY);
                    }

                    ViewGroup.LayoutParams params = imageView.getLayoutParams();
                    int vw = imageView.getWidth() - imageView.getPaddingLeft() - imageView.getPaddingRight();
                    float scale = (float) vw / (float) resource.getIntrinsicWidth();
                    int vh = Math.round(resource.getIntrinsicHeight() * scale);
                    params.height = vh + imageView.getPaddingTop() + imageView.getPaddingBottom();
                    imageView.setLayoutParams(params);
                    return false;
                }
            })
            .error(errorImageId)
            .into(imageView);


    }

}