package com.tejia.lijin.app.util;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.BitmapShader;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import androidx.annotation.NonNull;
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import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
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import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;
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import java.security.MessageDigest;
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/**
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* glide 加载圆形图片
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*
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* @author weikou2015
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*/
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public class GlideCircleTransform
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extends BitmapTransformation {
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public GlideCircleTransform(Context context) {
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// super(context);
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}
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@Override
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protected Bitmap transform(BitmapPool pool, Bitmap toTransform,
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int outWidth, int outHeight) {
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return circleCrop(pool, toTransform);
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}
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private static Bitmap circleCrop(BitmapPool pool, Bitmap source) {
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if (source == null)
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return null;
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int size = Math.min(source.getWidth(), source.getHeight());
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int x = (source.getWidth() - size) / 2;
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int y = (source.getHeight() - size) / 2;
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// TODO this could be acquired from the pool too
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Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
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Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
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if (result == null) {
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result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
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}
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Canvas canvas = new Canvas(result);
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Paint paint = new Paint();
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paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP,
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BitmapShader.TileMode.CLAMP));
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paint.setAntiAlias(true);
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float r = size / 2f;
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canvas.drawCircle(r, r, r, paint);
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return result;
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}
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// @Override
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// public String getId() {
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// return getClass().getName();
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// }
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@Override
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public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) {
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}
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}
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