Iphone 图片赢得';赛格传球后,他没有表现出来
正如标题所说,我试图在UIImageview中显示UIImage,问题是它不会显示。就在我展示它之前,我从另一个视角通过了一段。当我打开断点时,我看到UIImage已分配,但没有图片显示,我已尝试将其设置为静态图片,效果良好 相关代码应为 在FirstViewController.m中Iphone 图片赢得';赛格传球后,他没有表现出来,iphone,objective-c,ios,xcode,uiimage,Iphone,Objective C,Ios,Xcode,Uiimage,正如标题所说,我试图在UIImageview中显示UIImage,问题是它不会显示。就在我展示它之前,我从另一个视角通过了一段。当我打开断点时,我看到UIImage已分配,但没有图片显示,我已尝试将其设置为静态图片,效果良好 相关代码应为 在FirstViewController.m中 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionar
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
UIImage* img = [info objectForKey:UIImagePickerControllerOriginalImage];
if (picker.sourceType == UIImagePickerControllerSourceTypePhotoLibrary) {
NSLog(@"Bild hämtad!");
[self moveImage];
}
else
{
UIImageWriteToSavedPhotosAlbum(img, self, @selector(image:didFinishSavingWithError:contextInfo:), Nil);
}
[picker dismissModalViewControllerAnimated:YES];
[MBProgressHUD showHUDAddedTo:self.view animated:YES];
}
- (void)image: (UIImage *)image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo{
if (!error) {
NSLog(@"Bild sparad!");
[self moveImage];
}
else{
NSLog(@"%@",error);
}
}
-(void)moveImage
{
[self performSegueWithIdentifier:@"ImageEdit" sender:self];
[MBProgressHUD hideHUDForView:self.view animated:YES];
NSLog(@"Bild Flyttad!");
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:self
{
if ([[segue identifier] isEqualToString:@"ImageEdit"])
{
[segue.destinationViewController setMImage:image];
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[imageView setImage:_mImage];
NSLog(@"Bild Visas!");
}
在ImageEditController.m中
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
UIImage* img = [info objectForKey:UIImagePickerControllerOriginalImage];
if (picker.sourceType == UIImagePickerControllerSourceTypePhotoLibrary) {
NSLog(@"Bild hämtad!");
[self moveImage];
}
else
{
UIImageWriteToSavedPhotosAlbum(img, self, @selector(image:didFinishSavingWithError:contextInfo:), Nil);
}
[picker dismissModalViewControllerAnimated:YES];
[MBProgressHUD showHUDAddedTo:self.view animated:YES];
}
- (void)image: (UIImage *)image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo{
if (!error) {
NSLog(@"Bild sparad!");
[self moveImage];
}
else{
NSLog(@"%@",error);
}
}
-(void)moveImage
{
[self performSegueWithIdentifier:@"ImageEdit" sender:self];
[MBProgressHUD hideHUDForView:self.view animated:YES];
NSLog(@"Bild Flyttad!");
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:self
{
if ([[segue identifier] isEqualToString:@"ImageEdit"])
{
[segue.destinationViewController setMImage:image];
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[imageView setImage:_mImage];
NSLog(@"Bild Visas!");
}
我知道有很多代码,但我认为多发比少发要好。你初始化过imageView吗
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
imageView = [[UIImageView alloc] init];
[imageView setImage:_mImage];
NSLog(@"Bild Visas!");
}
如果它从未初始化过,对它的任何函数调用都将以静默方式失败(在nil指针上调用函数根本不起任何作用)。是否初始化过imageView
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
imageView = [[UIImageView alloc] init];
[imageView setImage:_mImage];
NSLog(@"Bild Visas!");
}
如果它从未初始化过,对它的任何函数调用都将以静默方式失败(在nil指针上调用函数根本不起任何作用)。我做得对吗?“@property(弱,非原子)IBOutlet UIImageView*imageView;”和“@synthesis imageView;”是否实际连接到interface builder中的图像视图?如果不是,那么它永远不会像我说的那样初始化。如果它是一个连接的IB对象,它应该可以工作。您是否尝试过调试/单步执行代码,以查看它在运行时是否确实是一个有效的映像?我看到mImage conatins 0x001f5aa0足以知道它实际上是一个图片,或者即使它是空的,它也可以是这样吗?这是指针引用的对象的地址。它不是0x0的事实只是意味着它至少指向了某个东西(这很好)。
imageView
是否指向在viewDidLoad
中设置其图像的点?我做得对吗?“@property(弱,非原子)IBOutlet UIImageView*imageView;”和“@synthesis imageView;”是否实际连接到interface builder中的图像视图?如果不是,那么它永远不会像我说的那样初始化。如果它是一个连接的IB对象,它应该可以工作。您是否尝试过调试/单步执行代码,以查看它在运行时是否确实是一个有效的映像?我看到mImage conatins 0x001f5aa0足以知道它实际上是一个图片,或者即使它是空的,它也可以是这样吗?这是指针引用的对象的地址。它不是0x0的事实只是意味着它至少指向了某个东西(这很好)。imageView
是否指向在viewDidLoad
中设置其图像的点?