Iphone 照相机覆盖图片

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好消息和坏消息。好消息是，在Connections Inspector中，通过断开覆盖UIToolbar并连接UIImageview，我看到了国王，但坏消息是，我没有看到我也需要的UIToolbar。所以现在的问题是，当用户在这里完成时，如何才能回到调用VC？工具栏和图像怎么可能都是覆盖的一部分，或者“返回按钮”工具栏怎么可能位于非覆盖视图上，或者什么的？或者如何使工具栏和图像都显示在OverlyViewController上

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OverlayViewController.m

中的

setupImagePicker

- (void)setupImagePicker:(UIImagePickerControllerSourceType)sourceType
{
    self.imagePickerController.sourceType = sourceType;

    if (sourceType == UIImagePickerControllerSourceTypeCamera)
    {
        // user wants to use the camera interface
        //
        self.imagePickerController.showsCameraControls = NO;

        if ([[self.imagePickerController.cameraOverlayView subviews] count] == 0)
        {
            // setup our custom overlay view for the camera
            //
            // ensure that our custom view's frame fits within the parent frame
            CGRect overlayViewFrame = self.imagePickerController.cameraOverlayView.frame;
            CGRect newFrame = CGRectMake(0.0,
                                         CGRectGetHeight(overlayViewFrame) -
                                         self.view.frame.size.height - 10.0,
                                         CGRectGetWidth(overlayViewFrame),
                                         self.view.frame.size.height + 10.0);
            self.view.frame = newFrame;
            [self.imagePickerController.cameraOverlayView addSubview:self.view];
        }
    }
}

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有没有人在iPhone而不是iPad上试过这个？我没有iPhone，但我今天读了Matt Neuburg的书，他说UIImagePicker在这两款设备上的工作方式不同

编辑0

在UIImagePicker中，我无法看到试图覆盖在摄影机视图上的图像。无论我如何添加IBOutlet，无论是否作为属性，图像都不会显示，但覆盖的工具栏显示良好。为什么?

在苹果的示例代码中添加了带国王的IBOutlet的viewcontroller.h，然后暂时将其注释掉

#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioServices.h>

@protocol OverlayViewControllerDelegate;

@interface OverlayViewController : UIViewController <UINavigationControllerDelegate, UIImagePickerControllerDelegate>
{
    // IBOutlet UIImageView* theKing;   ******** temporarily commented out
    id <OverlayViewControllerDelegate> delegate;
}    

@property (nonatomic, assign) id <OverlayViewControllerDelegate> delegate;
@property (nonatomic, retain) UIImagePickerController *imagePickerController;

- (void)setupImagePicker:(UIImagePickerControllerSourceType)sourceType;

@end

@protocol OverlayViewControllerDelegate
- (void)didTakePicture:(UIImage *)picture;
- (void)didFinishWithCamera;
@end

当我在iPhone上执行代码时，我看不到King的图像。下面是我添加的nib视图，显示了一些连接。没有抛出错误，但我看不到图像，只有UIToolbar已经添加

更新

---

我现在已经更新了它，并试图复制您在问题中所做的。我已经包括了.h/.m和

theKing@2x.png

。创建一个新项目并将源文件粘贴到文件中，然后添加

theKing@2x.png

。一切都是以编程方式完成的-除了将视图嵌入到导航控制器中之外，您不需要在interface builder中进行任何设置

这里是

theKing@2x.png

-

ViewController.h 截图 这就是我运行它时的样子。

---

这是否满足您的应用程序要求？

我发现的一个答案是将图像放在一个巨大的按钮上，该按钮作为动作

完成：

。我必须想办法告诉我的用户这样做，但至少这会关闭图像视图并完成我的设置模式。我真的希望有一个更干净的选择，所以请添加答案，如果你有他们。感谢所有考虑过我的问题的人。

很抱歉花了这么长时间才回复。到目前为止，我只遇到了一个错误“selector

setCameraOverlayView的类未知”，由于其他义务，我无法研究该问题。您能看看
-OverlayViewController.m
中的
设置图像选择器：
吗？我将把它添加到问题中。谢谢你的回答。你能把你的消息来源压缩并发布吗？今晚我可以看一看。今天的大部分时间我都很忙，但是当我今晚回家的时候，我很乐意看一看。我想我要到星期天晚上才能使用我的电脑。那我就把拉链拉上寄给你。谢谢。我现在已经更新了它，并试图复制你在问题中所做的。我已经包括了.h/.m和
theKing@2x.png
。创建一个新项目并粘贴此代码。一切都是以编程方式完成的-您不需要在interface builder中进行任何设置。这是否满足了您的问题？移除按钮？删除
viewDidLoad
中与按钮相关的代码，然后将代码从
buttonPress
移动到
viewDidLoad
。或者，您也可以在
viewDidLoad
中使用
[self-buttonPress:self]
调用
buttonPress
。
#import "OverlayViewController.h"

enum
{
    kOneShot,       // user wants to take a delayed single shot
    kRepeatingShot  // user wants to take repeating shots
};

@interface OverlayViewController ( )

@property (assign) SystemSoundID tickSound;

@property (nonatomic, retain) IBOutlet UIImageView* theKing;  // added *********
@property (nonatomic, retain) IBOutlet UIBarButtonItem *takePictureButton;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *startStopButton;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *timedButton;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *cancelButton;

@property (nonatomic, retain) NSTimer *tickTimer;
@property (nonatomic, retain) NSTimer *cameraTimer;

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController <UIImagePickerControllerDelegate, UINavigationControllerDelegate> 

@end

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // assign action to button
    UIButton *myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    myButton.frame = CGRectMake(0, 0, 200, 60);
    myButton.center = self.view.center;
    [myButton addTarget:self action:@selector(buttonPress:) forControlEvents:UIControlEventTouchUpInside];
    [myButton setTitle:@"Image Picker" forState:UIControlStateNormal];

    [self.view addSubview:myButton];
}

- (void)buttonPress:(id)sender {
    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

        // alert the user that the camera can't be accessed
        UIAlertView *noCameraAlert = [[UIAlertView alloc] initWithTitle:@"No Camera" message:@"Unable to access the camera!" delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil, nil];
        [noCameraAlert show];

    } else {

        // prepare imagePicker view
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        imagePicker.delegate = self;
        imagePicker.allowsEditing = NO;
        imagePicker.showsCameraControls = NO;

        // create view for overlay
        CGRect overlayRect = CGRectMake(0, 0, imagePicker.view.frame.size.width, imagePicker.view.frame.size.height);
        UIView *overlayView = [[UIView alloc] initWithFrame:overlayRect];

        // prepare the image to overlay
        UIImageView *overlayImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"theKing"]];
        overlayImage.center = overlayView.center;
        overlayImage.alpha = 0.5;

        // prepare toolbar for overlay
        UIToolbar *overlayToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 600, overlayView.frame.size.width, 40)];
        overlayToolbar.center = CGPointMake(overlayView.center.x, overlayView.frame.size.height - 20);
        overlayToolbar.barStyle = UIBarStyleBlack;

        UIBarButtonItem *takePictureButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera target:self action:@selector(takePictureButtonPressed:)];
        UIBarButtonItem *flexibleBarSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
        flexibleBarSpace.width = 1000;
        UIBarButtonItem *startStopButton = [[UIBarButtonItem alloc] initWithTitle:@"Snap" style:UIBarButtonItemStyleBordered target:self action:@selector(startStopButtonPressed:)];
        UIBarButtonItem *timedButton = [[UIBarButtonItem alloc]initWithTitle:@"Timed" style:UIBarButtonItemStyleBordered target:self action: @selector(timedButtonPressed:)];
        UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc]initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action: @selector(cancelButtonPressed:)];

        overlayToolbar.items = [NSArray arrayWithObjects:takePictureButton, flexibleBarSpace, startStopButton, timedButton, cancelButton, nil];


        [overlayView addSubview:overlayImage];
        [overlayView addSubview:overlayToolbar];

        // add the image as the overlay
        [imagePicker setCameraOverlayView:overlayView];

        // display imagePicker
        [self.navigationController presentViewController:imagePicker animated:YES completion:nil];
    }
}

#pragma mark - UIBarButton Selectors

- (void)takePictureButtonPressed:(id)sender {
    NSLog(@"takePictureButtonPressed...");
    // TODO: take picture!
}

- (void)startStopButtonPressed:(id)sender {
    NSLog(@"startStopButtonPressed...");
    // TODO: make this do something
}

- (void)timedButtonPressed:(id)sender {
    NSLog(@"timedButtonPressed...");
    // TODO: implement timer before calling takePictureButtonPressed
}

- (void)cancelButtonPressed:(id)sender {
    NSLog(@"cancelButtonPressed");
    [self.navigationController dismissViewControllerAnimated:YES completion:nil];
}

#pragma mark - UIImagePickerController Delegate Methods

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

    // determine if the user selected or took a new photo
    UIImage *selectedImage;
    if ([editingInfo objectForKey:UIImagePickerControllerOriginalImage]) selectedImage = (UIImage *)[editingInfo objectForKey:UIImagePickerControllerOriginalImage];
    else if ([editingInfo objectForKey:UIImagePickerControllerEditedImage]) selectedImage = (UIImage *)[editingInfo objectForKey:UIImagePickerControllerEditedImage];

    // TODO: Do something with selectedImage (put it in a UIImageView

    // dismiss the imagePicker
    [picker.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end