维护老项目真是头秃..

//环境版本
api 'com.github.bumptech.glide:glide:3.7.0'
api 'jp.wasabeef:glide-transformations:2.0.1'

需求是加载动态图片,不限高度,宽度一屏,加圆角,写完发现圆角总是被切的情况

解决代码:

Glide.with(this).load(imgPath).asBitmap()
        .into(object : SimpleTarget<Bitmap>() {
            override fun onResourceReady(resource: Bitmap, glideAnimation: GlideAnimation<in Bitmap>) {
                val para = iv_active.layoutParams
                para.height = (iv_active.width.toFloat() / resource.width * resource.height).toInt()
                iv_active.layoutParams = para
                //加载圆角矩形,transform不能重复多次
                Glide.with(this@BrandDetailActivity)
                        .load(imgPath)
                        .placeholder(R.drawable.ic_launcher)
                        .transform(CenterCrop(this@BrandDetailActivity), GlideRoundTransform(this@BrandDetailActivity, 8))
                        .diskCacheStrategy(DiskCacheStrategy.ALL)
                        .crossFade()
                        .dontAnimate()
                        .into(iv_active)
            }
        })

最终效果

public class GlideRoundTransform extends BitmapTransformation {
    private static float radius = 0f;

    /**
     * 构造函数 默认圆角半径 4dp
     *
     * @param context Context
     */
    public GlideRoundTransform(Context context) {
        this(context, 4);
    }

    /**
     * 构造函数
     *
     * @param context Context
     * @param dp      圆角半径
     */
    public GlideRoundTransform(Context context, int dp) {
        super(context);
        radius = Resources.getSystem().getDisplayMetrics().density * dp;
    }

    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
        return roundCrop(pool, toTransform);
    }

    private static Bitmap roundCrop(BitmapPool pool, Bitmap source) {
        if (source == null) return null;

        Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        }

        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());
        canvas.drawRoundRect(rectF, radius, radius, paint);
        return result;
    }

    @Override
    public String getId() {
        return getClass().getName() + Math.round(radius);
    }

}