Objective-c上的图像大小,

Question

如何在objecive-c中获得图像大小,

我使用imagePicker加载了一个图像,我想知道该图像的大小.(W*H)

可能吗.？

感谢和问候...

Answer 1

您实现了UIImagePickerControllerDelegate协议,特别是该imagePickerController:didFinishPickingMediaWithInfo:方法.该方法中的最后一个参数是一个字典,其中包含UIImagePickerControllerOriginalImage键的UImage引用.得到这个UIImage*并获得它的size财产.

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    UIImage *image = (UIImage*) [info objectForKey:UIImagePickerControllerOriginalImage];
    //access width and height like this
    image.size.width;
    image.size.height;
}