讓圖片不變形

繪製圖片到指定的區域切不變形

image是個UIImage類型

[image drawInRect:CGRectMake(10, 50, 300, 450)];

 

或者：

UIImageView *webImgV = [[UIImageView alloc] initWithFrame:CGRectMake(5, 5, 80, 30)];

[webImgV setContentScaleFactor:[[UIScreen mainScreen] scale]];
webImgV.contentMode =  UIViewContentModeScaleAspectFill;
webImgV.autoresizingMask = UIViewAutoresizingFlexibleHeight;
webImgV.clipsToBounds  = YES;