[英]Image from UIImagePicker to NSMutableArray
Very simply, I want to take a photo using UIImagePicker
and place it into an NSMutableArray
. 很简单,我想使用UIImagePicker
拍摄照片并将其放入NSMutableArray
。 I hve the following code below. 我在下面的代码如下。 The camera part works fine and for test purposes the image is displayed in a UIImage
called photoImageView . 相机部件工作正常,出于测试目的,图像显示在名为photoImageView的UIImage
。 However I can't seem to add the image into the array. 但是我似乎无法将图像添加到数组中。 Any help gratefully received. 任何帮助感激不尽。
@property (nonatomic, retain) NSMutableArray *photos;
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *photoTaken = (UIImage *)[info valueForKey:UIImagePickerControllerOriginalImage];
photoImageView.image=photoTaken;
[photos addObject:[UIImage photoTaken];
[picker dismissViewControllerAnimated:YES completion:nil];
}
Have you instantiated the array somewhere ( viewDidLoad
for example): 你有没有在某个地方实例化数组(例如viewDidLoad
):
self.photos = [NSMutableArray alloc] init];
? ?
1)Are you initialising the photos NSMutableArray? 1)你是否正在初始化照片NSMutableArray? Sometimes addObject: won't throw an error when trying to insert an object into a NULL NSArray. 有时addObject:在尝试将对象插入NULL NSArray时不会抛出错误。
2) 2)
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *photoTaken = (UIImage *)[info valueForKey:UIImagePickerControllerOriginalImage];
if (photoTaken)
{
photoImageView.image=photoTaken;
[photos addObject:photoTaken];
}else{
NSLog(@"Selected photo is NULL");
}
[picker dismissViewControllerAnimated:YES completion:nil];
}
添加到(Ian L)后修改如下
[photos addObject: photoTaken];
photoTaken
is already instantiated as an UIImage
object. photoTaken
已经实例化为UIImage
对象。 No need to do : 无需做:
[photos addObject : [UIImage photoTaken]];
Simply do this : 只需这样做:
[photos addObject : photoTaken];
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