Glide加载圆形图片 自定义圆角 和对指定角加载圆角

package com.ss.glideimagedemo; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapShader; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.RectF; import android.graphics.Shader; import com.bumptech.glide.Glide; import com.bumptech.glide.load.Transformation; import com.bumptech.glide.load.engine.Resource; import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool; import com.bumptech.glide.load.resource.bitmap.BitmapResource; import static com.ss.glideimagedemo.GlideRoundCornersTransUtils.CornerType.ALL; /** * description:glide对指定角加载圆角 * Created by bss */ public class GlideRoundCornersTransUtils implements Transformation<Bitmap> { private BitmapPool mBitmapPool; private int mRadius; private int mDiameter; private CornerType mCornerType = ALL; public GlideRoundCornersTransUtils(Context context, int radius, CornerType type) { mBitmapPool = Glide.get(context).getBitmapPool(); mCornerType = type; mRadius = radius; mDiameter = 2 * mRadius; } public enum CornerType { /** 所有角 */ ALL, /** 左上 */ LEFT_TOP, /** 左下 */ LEFT_BOTTOM, /** 右上 */ RIGHT_TOP, /** 右下 */ RIGHT_BOTTOM, /** 左侧 */ LEFT, /** 右侧 */ RIGHT, /** 下侧 */ BOTTOM, /** 上侧 */ TOP, } @Override public Resource<Bitmap> transform(Resource<Bitmap> resource, int outWidth, int outHeight) { Bitmap source = resource.get(); int width = source.getWidth(); int height = source.getHeight(); Bitmap bitmap = mBitmapPool.get(width, height, Bitmap.Config.ARGB_8888); if (bitmap == null) { bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); } Canvas canvas = new Canvas(bitmap); Paint paint = new Paint(); paint.setAntiAlias(true); paint.setShader(new BitmapShader(source, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)); drawRoundRect(canvas, paint, width, height); return BitmapResource.obtain(bitmap, mBitmapPool); } private void drawRoundRect(Canvas canvas, Paint paint, float width, float height) { switch (mCornerType) { case LEFT_TOP: drawLeftTopCorner(canvas, paint, width, height); break; case LEFT_BOTTOM: drawLeftBottomCorner(canvas, paint, width, height); break; case RIGHT_TOP: drawRightTopCorner(canvas, paint, width, height); break; case RIGHT_BOTTOM: drawRightBottomCorner(canvas, paint, width, height); break; case LEFT: drawLeftCorner(canvas, paint, width, height); break; case RIGHT: drawRightCorner(canvas, paint, width, height); break; case BOTTOM: drawBottomCorner(canvas, paint, width, height); break; case TOP: drawTopCorner(canvas, paint, width, height); break; case ALL: default: canvas.drawRoundRect(new RectF(0, 0, width, height), mRadius, mRadius, paint); break; } } /** * 画左上角 */ private void drawLeftTopCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(mRadius, 0, width, height), paint); canvas.drawRect(new RectF(0, mRadius, mRadius, height), paint); canvas.drawArc(new RectF(0, 0, mDiameter, mDiameter), 180, 90, true, paint); } /** * 画左下角 */ private void drawLeftBottomCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(0, 0, width, height - mRadius), paint); canvas.drawRect(new RectF(mRadius, height - mRadius, width, height), paint); canvas.drawArc(new RectF(0, height - mDiameter, mDiameter, height), 90, 90, true, paint); } /** * 画右上角 */ private void drawRightTopCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(0, 0, width - mRadius, height), paint); canvas.drawRect(new RectF(width - mRadius, mRadius, width, height), paint); canvas.drawArc(new RectF(width - mDiameter, 0, width, mDiameter), 270, 90, true, paint); } /** * 画右下角 */ private void drawRightBottomCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(0, 0, width, height - mRadius), paint); canvas.drawRect(new RectF(0, height - mRadius, width - mRadius, height), paint); canvas.drawArc(new RectF(width - mDiameter, height - mDiameter, width, height), 0, 90, true, paint); } /** * 画左 角 */ private void drawLeftCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(mRadius, 0, width, height), paint); canvas.drawRect(new RectF(0, mRadius, mRadius, height-mRadius), paint); canvas.drawArc(new RectF(0, 0, mDiameter, mDiameter), 180, 90, true, paint); canvas.drawArc(new RectF(0, height - mDiameter, mDiameter, height), 90, 90, true, paint); } /** * 画右角 */ private void drawRightCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(0, 0, width - mRadius, height), paint); canvas.drawRect(new RectF(width-mRadius, mRadius, width, height-mRadius), paint); canvas.drawArc(new RectF(width - mDiameter, 0, width, mDiameter), 270, 90, true, paint); canvas.drawArc(new RectF(width - mDiameter, height - mDiameter, width, height), 0, 90, true, paint); } /** * 画上 角 */ private void drawTopCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(0, mRadius, width, height), paint); canvas.drawRect(new RectF(mRadius, 0, width-mRadius, mRadius), paint); canvas.drawArc(new RectF(0, 0, mDiameter, mDiameter), 180, 90, true, paint); canvas.drawArc(new RectF(width - mDiameter, 0, width, mDiameter), 270, 90, true, paint); } /** * 画下 角 */ private void drawBottomCorner(Canvas canvas, Paint paint, float width, float height) { canvas.drawRect(new RectF(0, 0, width, height - mRadius), paint); canvas.drawRect(new RectF(mRadius, height-mRadius, width-mRadius, height), paint); canvas.drawArc(new RectF(0, height - mDiameter, mDiameter, height), 90, 90, true, paint); canvas.drawArc(new RectF(width - mDiameter, height - mDiameter, width, height), 0, 90, true, paint); } @Override public String getId() { return "RoundedTransformation(radius=" + mRadius + ", diameter=" + mDiameter + ")"; } }