android - 图像在滑动缩放时失真

Question

我正在使用 glide 将图像加载到 recyclerview 中的 ImageView 中 但是对于低分辨率手机图像会失真，而在浏览器中打开时可以正确看到相同的图像

它在高端手机上正常工作

下面是我的代码

Glide.with(context).load(url).apply(requestOptions).
            into(new SimpleTarget<Drawable>() {
                @Override
                public void onResourceReady(Drawable drawable, Transition<? super Drawable> transition) {
                    BitmapDrawable bd = (BitmapDrawable) drawable;
                    int width = bd.getBitmap().getWidth();
                    int height = bd.getBitmap().getHeight();
                    int phoneWidth = PhoneUtils.getScreenWidth(context);
                    float phW = phoneWidth;
                    float wid = width;
                    float factor = phW / wid;
                    double h = factor * height;
                    height = (int) Math.ceil(h);
                    width = phoneWidth;
                    Bitmap bitmap = Bitmap.createScaledBitmap(bd.getBitmap(), width, height, false);
                    imageView.setImageBitmap(bitmap);
                }
            });

书写的文字略有失真

图片缩放有问题吗？

Answer 1

试试这个解决方案

@Override
public void onResourceReady(Drawable drawable, Transition<? super Drawable> transition) {
            BitmapDrawable bd = (BitmapDrawable) drawable;
            int width = drawable.getIntrinsicWidth();
            int height = drawable.getIntrinsicHeight();
            int phoneWidth = PhoneUtils.getScreenWidth(context);
            float phW = phoneWidth;
            float wid = width;
            float factor = phW / wid;
            Matrix matrix = new Matrix();
            matrix.postScale(factor, factor);
            Bitmap bitmap = Bitmap.createBitmap(bd.getBitmap(), 0, 0,
                    width, height, matrix, true);
            imageView.setImageBitmap(bitmap);
 }

使用矩阵调整大小。