为UIImagePickerControllerSourceTypeCamera获取SIGABRT

Question

我正在尝试制作一个非常简单的iphone应用程序，它显示设备的实时摄像头视图，并添加了我通过研究发现的以下代码。

    -(void)viewDidLoad{
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc] init];

imagePicker.delegate = self;

imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

imagePicker.allowsEditing = YES;

[self presentModalViewController:imagePicker animated:YES];

[imagePicker release];

}

这只会导致SIGABRT错误，我不知道如何处理。

由于以上代码似乎是实现相机视图的必要条件，是否还有其他我错过的内容？没想到只是加载相机视图会给我带来压力...... 请帮帮我。

ps.我正在使用xcode 4 btw。

Answer 1

在添加

之前检查一下

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc] init];

imagePicker.delegate = self;

imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

imagePicker.allowsEditing = YES;

[self presentModalViewController:imagePicker animated:YES];

[imagePicker release];

}

else
{
//.....
}