如何制作圆形的 ImageView? [英] How to Make an ImageView in Circular Shape?

问题描述

我想做这样的事情.

这是一个包含用户名和图像的列表视图行.

This is a list view row with name and the image of user.

我进行了一些搜索并完成了图像循环，但不是完美的解决方案.任何帮助都会帮助我.

I have done some searching and have done the image circular,but not the perfect solution. Any help will be helping me.

我的代码添加到 Image Loader 类中

my code added to the Image Loader class

public Bitmap processBitmap(Bitmap bitmap) {
    int pixels = 0;
    if (mRound == 0)
        pixels = 120;
    else
        pixels = mRound;
    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
            bitmap.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
    final RectF rectF = new RectF(rect);
    final float roundPx = pixels;

    paint.setAntiAlias(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);

    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);

    return output;
}

谢谢.

推荐答案

你也可以使用这个功能......它对我有用..

you can use this function also ... Its work for me..

public Bitmap getRoundedShape(Bitmap scaleBitmapImage) {
    int targetWidth = 50;
    int targetHeight = 50;
    Bitmap targetBitmap = Bitmap.createBitmap(targetWidth, 
                        targetHeight,Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(targetBitmap);
    Path path = new Path();
    path.addCircle(((float) targetWidth - 1) / 2,
        ((float) targetHeight - 1) / 2,
        (Math.min(((float) targetWidth), 
        ((float) targetHeight)) / 2),
        Path.Direction.CCW);

    canvas.clipPath(path);
    Bitmap sourceBitmap = scaleBitmapImage;
    canvas.drawBitmap(sourceBitmap, 
        new Rect(0, 0, sourceBitmap.getWidth(),
        sourceBitmap.getHeight()), 
        new Rect(0, 0, targetWidth, targetHeight), null);
    return targetBitmap;
}

这篇关于如何制作圆形的 ImageView?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！