Glide实现圆角图片，以及圆形图片

Glide很常用，为了避免经常迁移项目导致重写工具类，记录下实现圆角图片的功能以及圆形图片的功能分为kotlin和java版本，
圆角图片如下kotlin版本如下：

package com.yyb.mvvmlibrary.widget

import android.content.Context
import android.content.res.Resources
import android.graphics.*
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation
import java.security.MessageDigest

/**
 * author : 闫裕波
 * e-mail : [email protected]
 * time   : 2020/8/7
 * desc   : 圆角图标
 */
class GlideRoundTransform @JvmOverloads constructor(
    context: Context?,
    dp: Int = 4
) : BitmapTransformation() {
    override fun transform(
        pool: BitmapPool,
        toTransform: Bitmap,
        outWidth: Int,
        outHeight: Int
    ): Bitmap {
        return roundCrop(pool, toTransform)!!
    }

    override fun updateDiskCacheKey(messageDigest: MessageDigest) {}

    companion object {
        private var radius = 0f
        private fun roundCrop(pool: BitmapPool, source: Bitmap?): Bitmap? {
            if (source == null) return null
            val result =
                pool[source.width, source.height, Bitmap.Config.ARGB_8888]
            val canvas = Canvas(result)
            val paint = Paint()
            paint.shader = BitmapShader(
                source,
                Shader.TileMode.CLAMP,

                Shader.TileMode.CLAMP
            )
            paint.isAntiAlias = true
            val rectF = RectF(
                0f, 0f, source.width.toFloat(), source.height
                    .toFloat()
            )
            canvas.drawRoundRect(
                rectF,
                radius,
                radius,
                paint
            )
            return result
        }
    }
    /**
     * 构造函数
     *
     * @param context Context
     * @param dp 圆角半径
     */
    /**
     * 构造函数 默认圆角半径 4dp
     *
     * @param context Context
     */
    init {
        radius =
            Resources.getSystem().displayMetrics.density * dp
    }
}

工具类如下：

//圆形图片
fun circleImageUrl(view: ImageView, url: String) {
    Glide.with(view.context)
        .load(url)
        .apply(RequestOptions.bitmapTransform(CircleCrop()))
        .transition(DrawableTransitionOptions.withCrossFade(500))
        .into(view)
}
//圆角图片
fun roundedCornerImagUrl(view:ImageView,url:String,radiis:Int){
    Glide.with(view.context)
        .load(url)
        .transform(CenterCrop(),GlideRoundTransform(view.context,radiis))
        .transition(DrawableTransitionOptions.withCrossFade(500))
        .into(view)

}

java版本

package com.zlhs.wms_android.common.widget;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import androidx.annotation.NonNull;
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;
import java.security.MessageDigest;

/**
 * author : 闫裕波
 * e-mail : [email protected]
 * time   : 2020/8/7
 * desc   : 圆角图标
 */
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) {
    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);
    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 void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {

  }
}

java版本Utilis
/**

• 方法描述：加载圆角图片
• @author 闫裕波
• ==========================
  */
  public static void loadRoundLocalImage(Context context, int url, final ImageView imageView,int roundingRadius) {
  Glide.with(context)
  .load(url)
  .placeholder(placeholder)
  .error(placeholder)
  //.centerCrop() 千万不要加，加了就没有圆角效果了
  .transform(new CenterCrop(), new GlideRoundTransform(context,roundingRadius))
  .into(imageView);
  }