UIImagePickerControllerSourceTypeCamera被父視圖對象覆蓋

Question

我正在XCode 4中創建一個基於窗口的應用程序（我使用基於窗口的應用程序是因為我喜歡通用應用程序的組織方式），但是我在使用UIImagePickerControllerSourceTypeSavedPhotosAlbum時遇到了麻煩。 我嘗試盡可能地減少代碼以避免任何外部錯誤，但是我想擁有兩個視圖：

父視圖：threeeyesmain.h / m / xib

子視圖：threeeyescamera.h / m / xib

我將在下面發布到目前為止的代碼。

主要問題是，當我按下按鈕使用相機拍照時，它可以工作並且可以看到相機控件，甚至可以毫無問題地拍照。 但是，父視圖中的任何對象都將覆蓋相機屏幕。 （即，如果我將相機對准花朵的圖片，則可以在屏幕上看到花朵，但是上面有來自父視圖的按鈕和圖像視圖。我希望​​這是有道理的）。

（附帶說明：有趣的是，當我在使用基於視圖的應用程序之前嘗試過這種方法時，它似乎可以工作，但是現在在基於Windows的應用程序中使用幾乎相同的代碼，我遇到了這些問題。）

也許我只是缺少一些明顯的東西。 任何幫助將不勝感激。 謝謝！

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

三眼相機

#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];