Glide实现圆角图片加载

最新推荐文章于 2024-12-19 15:26:12 发布

原创最新推荐文章于 2024-12-19 15:26:12 发布 · 490 阅读

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本文介绍如何使用Glide加载图片并实现圆角效果。通过自定义CornersTransform类继承BitmapTransformation，可以设置图片的圆角半径，并利用Canvas和Paint进行绘制。此方法适用于Android应用开发中对图片展示的需求。

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//使用

Glide.with(this).load("https://p3.pstatp.com/obj/42a30007b8ae7b956804").transform(new CornersTransform(this,50)).into(imgtu);

//新建CornersTransform 继承BitmapTransformation重写方法

public  class CornersTransform extends BitmapTransformation {
    private float radius;

    public CornersTransform(Context context) {
        super(context);
        radius = 10;
    }

    public CornersTransform(Context context, float radius) {
        super(context);
        this.radius = radius;
    }

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

    private Bitmap cornersCrop(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();
    }
}