Question

我正在将图片转换为NSData。对于以前的iOS版本，它没问题。但现在它的崩溃在iOS 10.0 。

我认为崩溃在这里：

UIImage * image=[selectedPhotos objectAtIndex:i];
NSData *imageData =[[NSData alloc] initWithData:UIImageJPEGRepresentation((image), 1.0)];

有人，建议我这样做：CGImageDestinationFinalize or UIImageJPEGRepresentation - Crash when saving a large file on IOS 10

我称之为：

UIImage * image=[self convertImage:[selectedPhotos objectAtIndex:i]]; //Dont worry, i am getting the image from array
imageData=[[NSData alloc] initWithData:UIImageJPEGRepresentation((image), 1.0)];

方法：

-(UIImage *)convertImage:(UIImage *)sourceImage{
    UIGraphicsBeginImageContext(sourceImage.size);
    [sourceImage drawInRect:CGRectMake( 0, 0, sourceImage.size.width, sourceImage.size.height)];

    UIImage *targetImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return targetImage;
 }

仍然显示问题：

- [NSConcreteMutableData CGImage]：无法识别的选择器发送到实例0x60000005dfd0

仍在崩溃。有解决方案吗

Answer 1

看起来[selectedPhotos objectAtIndex:i]没有返回UIImage。

UIImageJPEGRepresentation - 崩溃IOS 10： - [NSConcreteMutableData CGImage]：无法识别的选择器问题

1 个答案: