UIImagePickerControllerSourceTypeCamera被父视图对象覆盖

Question

我在XCode 4中创建基于窗口的应用程序（因为我喜欢通用应用程序的组织方式，所以我使用基于窗口的应用程序），但是我遇到了UIImagePickerControllerSourceTypeSavedPhotosAlbum问题。我试图剥离下来的代码，尽可能避免任何外部错误，但我想有两种观点：

父视图：threeeyesmain.h/M /厦门国际银行

副视点：threeeyescamera.h/m/xib

我会发布我到目前为止下面的代码。

主要问题是，当我按下按钮以使用相机拍摄照片时，它可以正常工作，我可以看到照相机控制，甚至可以拍摄没有问题的照片。但是，父视图中的任何对象都会覆盖相机屏幕。 （也就是说，如果我将相机对准花朵图片，我可以在屏幕上看到花朵，但是从父视图中叠​​加了按钮和图像视图，我希望这是有道理的）。 （注意：有趣的是，当我在使用基于视图的应用程序之前尝试这个功能时，它似乎可以正常工作，但是现在在基于Windows的应用程序中使用几乎相同的代码，我得到了这些问题。）

也许我只是错过了一些非常明显的东西。任何帮助将不胜感激。谢谢！

threeeyesmain.h

#import <UIKit/UIKit.h> 
#import <Foundation/Foundation.h> 
#import <AVFoundation/AVAudioPlayer.h> 
#import <MediaPlayer/MediaPlayer.h> 

@interface threeeyesmain : UIViewController { 

} 

-(IBAction)switchtothreeeyescamera:(id)sender; 
-(IBAction)back:(id)sender; 

@end 

threeeyesmain.m

#import "threeeyesmain.h" 
#import <AVFoundation/AVAudioPlayer.h> 
#import <MediaPlayer/MediaPlayer.h> 
#import "threeeyescamera.h" 


@implementation threeeyesmain 

-(IBAction)switchtothreeeyescamera:(id)sender{ 

    threeeyescamera *mythreeeyescamera = [[threeeyescamera alloc] 
                    initWithNibName:@"threeeyescamera" 
                    bundle:nil]; 

    UIView *thecurrentView = nil; 
    thecurrentView = self.view; 

    UIView *thenextView = nil; 
    thenextView = mythreeeyescamera.view; 
    thenextView.alpha = 0.0; 

    [self.view addSubview:thenextView]; 

    [UIView beginAnimations:@"fadeview" context:nil]; 
    [UIView setAnimationDuration:0.25]; 
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; 

    [UIView setAnimationDelegate:thenextView]; 
    thenextView.alpha = 1.0; 

    [UIView commitAnimations]; 

} 

-(IBAction)back:(id)sender { 


    [UIView beginAnimations:@"flipview" context:nil]; 
    [UIView setAnimationDuration:1]; 
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; 
    [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft 
          forView:self.view.superview cache:YES]; 

    [self.view removeFromSuperview]; 

    [UIView commitAnimations]; 

} 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

- (void)dealloc 
{ 
    [super dealloc]; 
} 

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view from its nib. 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
    // e.g. self.myOutlet = nil; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    // Return YES for supported orientations 
    return YES; 
} 

@end 

threeeyescamera.h

#import <UIKit/UIKit.h> 
#import <Foundation/Foundation.h> 
#import <AVFoundation/AVAudioPlayer.h> 


@interface threeeyescamera : UIViewController { 

    UIImageView *SetPhotoImageView; 
    UIImagePickerController *imgPicker; 
    UIButton *BackButton; 

} 

@property (nonatomic, retain) IBOutlet UIImageView *SetPhotoImageView; 
@property (nonatomic, retain) IBOutlet UIImagePickerController *imgPicker; 
@property (nonatomic, retain) IBOutlet UIButton *BackButton; 

-(IBAction)setImage:(id)sender; 
-(IBAction)back:(id)sender; 

@end 

threeeyescamera.m

#import "threeeyescamera.h" 


@implementation threeeyescamera 
@synthesize imgPicker, SetPhotoImageView, BackButton; 


-(IBAction)setImage:(id)sender{ 


    UIImagePickerController* picker = [[UIImagePickerController alloc] init]; 
    picker.delegate = self; 

// if((UIButton *) sender == ChoosePhoto) { 
//  picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; 
// } else { 
     picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
// } 

    [self presentModalViewController:picker animated:YES]; 

} 

-(IBAction)back:(id)sender { 

    [UIView beginAnimations:@"fadeview" context:nil]; 
    [UIView setAnimationDuration:0.25]; 
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; 

    UIView *theView = nil; 
    theView = self.view; 

    [UIView setAnimationDelegate:theView]; 

    theView.alpha = 0.0; 

    [UIView commitAnimations]; 

    [UIView setAnimationDidStopSelector:@selector(removeFromSuperview)]; 

} 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editInfo { 

    SetPhotoImageView.image = img; 

    NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; 

    NSData *ImageData = UIImageJPEGRepresentation(img, 0.9); 
    [prefs setObject:ImageData forKey:@"ImageSpaceMiddle"]; 
    [prefs synchronize]; 
    SetPhotoImageView.image = [UIImage imageWithData:ImageData]; 

    [[picker parentViewController] dismissModalViewControllerAnimated:YES]; 

} 

- (void)dealloc 
{ 
    [super dealloc]; 
} 

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    self.imgPicker = [[UIImagePickerController alloc] init]; 
    self.imgPicker.allowsEditing = NO; 
    self.imgPicker.delegate = self; 

    NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; 
    if ([prefs objectForKey:@"ImageSpaceMiddle"]) { 

     NSData *imgData = [prefs objectForKey:@"ImageSpaceMiddle"]; 
     SetPhotoImageView.image = [UIImage imageWithData: imgData]; 
    } 

    // Do any additional setup after loading the view from its nib. 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
    // e.g. self.myOutlet = nil; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    // Return YES for supported orientations 
    return YES; 
} 

@end 

Answer 1

[self.view bringSubviewToFront:viewname];