#pragma mark 图片压缩处理
-(NSData*)resetSizeOfImageData:(UIImage*)sourceImage maxSize:(NSInteger)maxSize
{
//优先调整分辨率
CGSize newSize=CGSizeMake(sourceImage.size.width, sourceImage.size.height);
CGFloat tempHeight=newSize.height/1024;
CGFloat tempWidth=newSize.width/1024;
if (tempWidth>1.0&&tempWidth>tempHeight) {
newSize=CGSizeMake(sourceImage.size.width/tempWidth, sourceImage.size.height/tempHeight);
}
UIGraphicsBeginImageContext(newSize);
[sourceImage drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
UIImage *newImage=UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//再调整大小
NSData *imageData=UIImageJPEGRepresentation(newImage, 0.4);
NSUInteger sizeOrigin=[imageData length];
NSUInteger sizeOriginKB=sizeOrigin/1024;
if (sizeOriginKB>maxSize) {
NSData *finalImageData=UIImageJPEGRepresentation(newImage, 0.5);
return finalImageData;
}
return imageData;
}
