在iOS應用程序中使用什麼功能或方法打開相機？

Question

我希望能夠在我創建的遊戲應用程序中打開相機。遊戲應用程序是使用iOS Objective C和HTML構建的。我想知道在本機端使用哪些函數，以及我在HTML和JS端使用的其他函數？

我知道我必須使用UIImagePickerController，我不完全明白，可能有人幫助？

Answer 1

在iPad上，您必須使用UIImagePickerController對象和委託和UIPopoverController來顯示彈出窗口中的選取器。來自我的應用程序的一些代碼。我用它從圖書館或相機加載圖像。

- (IBAction)choosePhoto:(id)sender { 

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

if ([sender tag] == FROM_LIBRARY) { 
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) { 
     picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 
    } 
    else { 
     picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; 
    } 
} 
else if ([sender tag] == FROM_CAMERA) { 
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { 
     picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
    } 
    else { 
     picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; 
    } 
} 

pop = [[UIPopoverController alloc] initWithContentViewController:picker]; 
pop.delegate = self; 
[pop presentPopoverFromRect:CGRectMake(234, 372, 300, 300) inView:self.view permittedArrowDirections:0 animated:YES]; 

[self hideMenu]; 
} 

則必須使用UIImagePickerControllerDelegate方法-(void)imagePickerController:(UIImagePickerController *)pk didFinishPickingMediaWithInfo:(NSDictionary *)info獲取圖像。

All are here http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html