我有内存泄漏问题,自 1 周以来我找不到答案。:(
我在我的照片数组中循环了 20 多个图像,我总是收到内存警告。
也许有人可以帮助我解决我令人沮丧的问题?
调试消息 “收到内存警告”。
在我的 UIView 中循环
images = [[NSMutableArray alloc] init];
for (Photo *photo in photos) {
[images addObject:[[UIImage imageWithData:photo.image_compressed] ToSize:videoSize]];
}
ToSize 方法
#import "UIImage+toSize.h"
@implementation UIImage (toSize)
- (UIImage *)ToSize:(CGSize)newSize {
float originalWidth = self.size.width;
float originalHeight = self.size.height;
float newWidth = newSize.width;
float newHeight = newSize.height;
float xMargin = 0.0f;
float yMargin = 0.0f;
float ratioWidth = (originalWidth / originalHeight) * newSize.height;
float ratioHeight = (originalHeight / originalWidth) * newSize.width;
// LEFT & RIGHT Margin
if (ratioHeight > newSize.height)
{
// set new image size
newWidth = ratioWidth;
newHeight = newSize.height;
// calculate margin
xMargin = (newSize.width - ratioWidth) / 2;
} else if (ratioWidth > newSize.width)
{
// set new image size
newWidth = newSize.width;
newHeight = ratioHeight;
// calculate margin
yMargin = (newSize.height - ratioHeight) / 2;
}
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef ctx = CGBitmapContextCreate(NULL, newSize.width, newSize.height,
CGImageGetBitsPerComponent(self.CGImage), 0,
colorSpace,
CGImageGetBitmapInfo(self.CGImage));
CGContextDrawImage(ctx, CGRectMake(xMargin, yMargin, newWidth, newHeight), self.CGImage);
CGImageRef cgimg = CGBitmapContextCreateImage(ctx);
UIImage *img = [UIImage imageWithCGImage:cgimg scale:self.scale orientation:UIImageOrientationUp];
CGColorSpaceRelease(colorSpace);
CGContextRelease(ctx);
CGImageRelease(cgimg);
return img;
}
@end