Ios 在iphone模拟器上使用UIImagePickerController

我有一种方法，可以从画廊或照相机中拍照

-(IBAction) getPhoto:(id) sender {
  UIImagePickerController * picker = [[UIImagePickerController alloc] init];
  picker.delegate = self;

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

  [self presentModalViewController:picker animated:YES];
}

但是当我在模拟器上运行它时，代码不起作用。而且它在

picker.sourceType=UIImagePickerController源类型SavedPhotosAlbum

和

picker.sourceType=UIImagePickerController源类型Camera

问题是在模拟器中还是在代码中？

试试这个

 if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
        {
            picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        }
        else
        {
            picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
        }
        [self.navigationController presentModalViewController:picker animated:NO];

---

如果您正在为iPad创建应用程序。您必须在popOver控件中显示库。

在模拟器中，您的picker.sourceType=UIImagePickerControllerSourceTypeCamera不会被调用，因为模拟器中没有可用的摄像头。此外，检查源类型是否可用以避免崩溃也是一种很好的做法

#import <MobileCoreServices/UTCoreTypes.h>
….
 if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
        {
            UIImagePickerController *imagePickerCamera =[[UIImagePickerController alloc] init];
            imagePickerCamera.delegate = self;
            imagePickerCamera.mediaTypes = [NSArray arrayWithObjects:(NSString *) kUTTypeImage,nil];
            imagePickerCamera.allowsEditing = YES;
            imagePickerCamera.sourceType = UIImagePickerControllerSourceTypeCamera;

            [self presentViewController:imagePickerCamera  animated:YES completion:nil];
        }

    else if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum])
        {
            UIImagePickerController *imagePickerAlbum =[[UIImagePickerController alloc] init];
            imagePickerAlbum.delegate = self;
            imagePickerAlbum.mediaTypes = [NSArray arrayWithObjects:(NSString *) kUTTypeImage,nil];
            imagePickerAlbum.allowsEditing = YES;
            imagePickerAlbum.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

            [self presentViewController:imagePickerAlbum animated:YES completion:nil];
        }

#导入
….
如果（[UIImagePickerController IsSourceType可用：UIImagePickerController SourceType相机]）
{
UIImagePickerController*imagePickerCamera=[[UIImagePickerController alloc]init]；
imagePickerCamera.delegate=self；
imagePickerCamera.mediaTypes=[NSArray arrayWithObjects:（NSString*）kUTTypeImage，无]；
imagePickerCamera.allowsEditing=是；
imagePickerCamera.sourceType=UIImagePickerControllerSourceTypeCamera；
[self-presentViewController:imagePickerCamera动画：是完成：无]；
}
else if（[UIImagePickerController IsSourceType可用：UIImagePickerController SourceType SavedPhotosAlbum]）
{
UIImagePickerController*ImagePickerAbum=[[UIImagePickerController alloc]init]；
imagepickerabum.delegate=self；
imagePickerAlbum.mediaTypes=[NSArray arrayWithObjects:（NSString*）kUTTypeImage，无]；
imagePickerAlbum.allowsEditing=是；
ImagePickerAbum.sourceType=UIImagePickerController源类型PhotoLibrary；
[self-presentViewController:imagePickerAlbum动画：是完成：无]；
}

与上述答案类似，但我发现这更容易。如果设备没有摄像头（如模拟器），则显示弹出警报。Sam代码，不同用法：

//button if to take a photo
- (IBAction)takePhoto:(id)sender {

//checks if device has a camera
    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
        UIAlertView *noCameraAlert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"You don't have a camera for this device" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];

        //shows above alert if there's no camera
        [noCameraAlert show];
    }

    //otherwise, show a modal for taking a photo
    else {
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.delegate = self;
        imagePicker.allowsEditing = YES;
        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

        [self presentViewController:imagePicker animated:YES completion:NULL];
    }
}

---

Swift 3/4/5verison：

if UIImagePickerController.isSourceTypeAvailable(.camera) {
    picker.sourceType = .camera
}
else {
    picker.sourceType = .savedPhotosAlbum // or .photoLibrary
}

Swift 2版本：

if UIImagePickerController.isSourceTypeAvailable(.Camera) {
    picker.sourceType = .Camera
}
else {
    picker.sourceType = .SavedPhotosAlbum // or .PhotoLibrary
}

---

在模拟器中，您不能使用

cameraCaptureMode

和

ShowScameraControl

以下是答案：您使用的是iPhone模拟器还是iPad模拟器。iPhone模拟器。我将“UIImagePickerControllerSourceTypeSavedPhotosAlbum”更改为“UIImagePickerControllerSourceTypePhotoLibrary”，但库为空，在应用程序中使用它们之前，应该在哪里添加照片是的，这是因为您使用的是模拟器。[self.navigationController presentModalViewController:picker动画：否]-不起作用，但[self-presentModalViewController:picker animated:YES]可以。关于sourceType，我也有同样的问题。为什么UIImagePickerControllerSourceTypePhotoLibrary是空的？在运行应用程序之前我应该如何添加照片检查此链接-