android:用毕加索创建圆形图像 [英] android: create circular image with picasso

问题描述

有人问过这个问题，并且对我正在使用的 Picasso 版本做出了承诺:如何使用 Picasso 将圆形位图发送到 ImageView?我是毕加索的新手，我唯一使用过的是

The question had been asked and there had been a promise made for the very version of Picasso that I am using: How do I send a circular bitmap to an ImageView using Picasso? I am new to Picasso and only thing I have used is

Picasso.with(context).load(url).resize(w, h).into(imageview);

我已经找到了 https://gist.github.com/julianshen/5829333 但我不确定如何以一种不尴尬的方式将它与上面的行结合起来.

I have already found https://gist.github.com/julianshen/5829333 but I am not sure how to combine it with the line above in a non-awkward way.

推荐答案

先研究一下，因为有可用的答案.无论如何，请关注此链接并仔细阅读以了解如何使用它.

Research a bit before as there are answers available. Anyhow, follow This Link and read it carefully to know how to use it.

试试这个:

import com.squareup.picasso.Transformation;

public class CircleTransform implements Transformation {
    @Override
    public Bitmap transform(Bitmap source) {
        int size = Math.min(source.getWidth(), source.getHeight());

        int x = (source.getWidth() - size) / 2;
        int y = (source.getHeight() - size) / 2;

        Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
        if (squaredBitmap != source) {
            source.recycle();
        }

        Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());

        Canvas canvas = new Canvas(bitmap);
        Paint paint = new Paint();
        BitmapShader shader = new BitmapShader(squaredBitmap,
                Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
        paint.setShader(shader);
        paint.setAntiAlias(true);

        float r = size / 2f;
        canvas.drawCircle(r, r, r, paint);

        squaredBitmap.recycle();
        return bitmap;
    }

    @Override
    public String key() {
        return "circle";
    }
}

然后简单地应用它:

Picasso.with(activity).load(mayorShipImageLink).transform(new CircleTransform()).into(ImageView);

这篇关于android:用毕加索创建圆形图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！