android之将图片转化为圆形图片
16lz
2022-03-17
bitmap = ((BitmapDrawable)imageView1.getDrawable()).getBitmap();
bitmap = getRoundedCornerBitmap(bitmap);
imageView1.setImageBitmap(bitmap);
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
final float roundPx = bitmap.getWidth() / 2;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
bitmap = getRoundedCornerBitmap(bitmap);
imageView1.setImageBitmap(bitmap);
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
final float roundPx = bitmap.getWidth() / 2;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
更多相关文章
- 代码中设置drawableleft
- android 3.0 隐藏 系统标题栏
- Android开发中activity切换动画的实现
- Android(安卓)学习 笔记_05. 文件下载
- Android中直播视频技术探究之—摄像头Camera视频源数据采集解析
- 技术博客汇总
- android 2.3 wifi (一)
- AndRoid Notification的清空和修改
- Android中的Chronometer