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iOS知识小集-180917

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相机拍摄图片方向调整

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  if (image.imageOrientation != UIImageOrientationUp) {
      UIGraphicsBeginImageContext(image.size);
      [image drawInRect:CGRectMake(0, 0, image.size.width, image.size.height)];
      image = UIGraphicsGetImageFromCurrentImageContext();
      UIGraphicsEndImageContext();
  }

Playground running 卡死

1、修改platform为Mac OS;
2、修改为手动执行;
3、为手动执行增加快捷键;

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