先上效果图:
因注释很细,就不一一解释说明了!
1.Glide加载圆形图片:
自定义GlideCircleTransUtils继承BitmapTransformation,重写transform()方法;
public class GlideCircleTransUtils extends BitmapTransformation {public GlideCircleTransUtils(Context context) {super(context);}@Overrideprotected 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;//获取资源的长宽,获取最小值 子位图的像素个数int size = Math.min(source.getWidth(), source.getHeight());// 子位图第一个像素在源位图的X坐标int x = (source.getWidth() - size) / 2;//子位图第一个像素在源位图的y坐标int y = (source.getHeight() - size) / 2;//创建新位图 source 源位图Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);//返回一个正好匹配给定宽、高和配置的只包含透明像素的Bitmap// 如果BitmapPool中找不到这样的Bitmap，就返回nullBitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);//当返回null 时,创建给定宽、高和配置的新位图if (result == null) {result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);}//画图Canvas canvas = new Canvas(result);Paint paint = new Paint();// 设置shaderpaint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));//抗锯齿paint.setAntiAlias(true);float r = size / 2f;// 用设置好的画笔绘制一个圆canvas.drawCircle(r, r, r, paint);return result;}@Overridepublic String getId() {return getClass().getName();}}
使用:
//加载圆图Glide.with(this).load(imgurl).transform(new GlideCircleTransUtils(this)).into(iv_circle);
2.Glide加载圆角图片:
自定义GlideRoundTransUtils继承BitmapTransformation,重写transform()方法;可自定义圆角度数;
public class GlideRoundTransUtils extends BitmapTransformation {private static float radius = 0f;public GlideRoundTransUtils(Context context) {this(context, 4);}public GlideRoundTransUtils(Context context, int dp) {super(context);this.radius = Resources.getSystem().getDisplayMetrics().density * dp;}@Overrideprotected 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;//返回一个正好匹配给定宽、高和配置的只包含透明像素的Bitmap// 如果BitmapPool中找不到这样的Bitmap，就返回nullBitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);//当返回null 时,创建给定宽、高和配置的新位图if (result == null) {result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);}Canvas canvas = new Canvas(result);Paint paint = new Paint();// 设置shaderpaint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));//抗锯齿paint.setAntiAlias(true);//画矩形RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());//绘制圆角矩形 (RectF对象,x方向上的圆角半径,y方向上的圆角半径,绘制时所使用的画笔)canvas.drawRoundRect(rectF, radius, radius, paint);return result;}@Overridepublic String getId() {return getClass().getName() + Math.round(radius);}}
使用:
//加载圆角图片Glide.with(this).load(imgurl).transform(new GlideRoundTransUtils(this, 10)).into(iv_Round);
最后附下整体demo下载地址:
/download/shanshan_1117/10256998
补充:
glide对指定角加载圆角
效果图:
不做介绍了.下面附上整体代码下载地址(次代码包含上边demo的整体代码):
/download/shanshan_1117/10259431
