使用这个转换，它会工作得很好。

public class CircleTransform extends BitmapTransformation {
public CircleTransform(Context context) {
    super(context);
}

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

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

    int borderColor = ColorUtils.setAlphaComponent(Color.WHITE, 0xFF);
    int borderRadius = 3;

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

    // TODO this could be acquired from the pool too
    Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
    if (squared != source) {
        source.recycle();
    }

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

    Canvas canvas = new Canvas(result);
    Paint paint = new Paint();
    paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
    paint.setAntiAlias(true);
    float r = size / 2f;
    canvas.drawCircle(r, r, r, paint);

    // Prepare the background
    Paint paintBg = new Paint();
    paintBg.setColor(borderColor);
    paintBg.setAntiAlias(true);

    // Draw the background circle
    canvas.drawCircle(r, r, r, paintBg);

    // Draw the image smaller than the background so a little border will be seen
    canvas.drawCircle(r, r, r - borderRadius, paint);

    squared.recycle();

    return result;
}

@Override
public String getId() {
    return getClass().getName();
}} 

Roman Samoylenko的答案是正确的，只是函数变了。 正确答案是

Glide.with(context)
                .load(yourImage)
                .apply(RequestOptions.circleCropTransform())
                .into(imageView);

你可以简单地调用roundedcornerstrtransform构造函数，它有一个拐角类型的枚举输入。是这样的:

Glide.with(context)
            .load(bizList.get(position).getCover())
            .bitmapTransform(new RoundedCornersTransformation(context,20,0, RoundedCornersTransformation.CornerType.TOP))
            .into(holder.bizCellCoverImg);

但首先你必须添加滑翔转换到你的项目。

这里有一个更模块化和更清晰的方法来在Glide中循环裁剪你的位图:

通过扩展BitmapTransformation创建一个自定义转换，然后重写transform方法，如下所示:

为了Glide 4.x.x

public class CircularTransformation extends BitmapTransformation {

@Override
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
    RoundedBitmapDrawable circularBitmapDrawable =
            RoundedBitmapDrawableFactory.create(null, toTransform);
    circularBitmapDrawable.setCircular(true);
    Bitmap bitmap = pool.get(outWidth, outHeight, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    circularBitmapDrawable.setBounds(0, 0, outWidth, outHeight);
    circularBitmapDrawable.draw(canvas);
    return bitmap;
    }

@Override
public void updateDiskCacheKey(MessageDigest messageDigest) {}

}

为了Glide 3.x.x

public class CircularTransformation extends BitmapTransformation {

@Override
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
    RoundedBitmapDrawable circularBitmapDrawable =
            RoundedBitmapDrawableFactory.create(null, toTransform);
    circularBitmapDrawable.setCircular(true);
    Bitmap bitmap = pool.get(outWidth, outHeight, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    circularBitmapDrawable.setBounds(0, 0, outWidth, outHeight);
    circularBitmapDrawable.draw(canvas);
    return bitmap;
    }

@Override
public String getId() {
    // Return some id that uniquely identifies your transformation.
    return "CircularTransformation";
    }

}

然后在Glide builder中设置你需要它的地方:

Glide.with(yourActivity)
   .load(yourUrl)
   .asBitmap()
   .transform(new CircularTransformation())
   .into(yourView);

希望这对你有所帮助。

在这种情况下，我需要添加阴影，和imageView抬高不工作

实现“com.github.bumptech.glide:滑翔:4.10.0”

XML

<FrameLayout
    android:id="@+id/fl_image"
    android:layout_width="60dp"
    android:layout_height="60dp"
    android:layout_margin="10dp"
    android:background="@drawable/card_circle_background"
    android:elevation="8dp">

    <ImageView
        android:id="@+id/iv_item_employee"
        android:layout_width="60dp"
        android:layout_height="60dp"
        tools:background="@color/colorPrimary" />
</FrameLayout>

可拉的形状

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
       android:shape="oval">
     <solid android:color="@color/white"/>
</shape>

滑翔的配置

Glide.with(this)
    .asBitmap()
    .load(item.image)
    .apply(RequestOptions.circleCropTransform())
    .into(iv_item_employee)

圆圈裁剪+占位符+交叉渐隐

 Glide.with(context!!)
                    .load(randomImage)
                    .apply(RequestOptions.bitmapTransform(CircleCrop()).error(R.drawable.nyancat_animated))
                    .transition(DrawableTransitionOptions()
                            .crossFade())
                    .into(picture)