如何從相機拍攝照片並以編程方式保存在照片庫中？

在iPhone應用程序中，我想通過編程方式將照相機&保存到照片庫中。 iPhone模擬器有可能嗎？所以請告訴我你有任何鏈接或材料。如何從相機拍攝照片並以編程方式保存在照片庫中？

在此先感謝

2011-07-25 Nikunj Jadav

一個更完整的答案拍照從相機無法在模擬器，你必須使用設備來測試你的代碼。 –

你可以使用uiimagepickercontroller來達到這個目的。首先，導入MobileCoreServices.framework。然後拉起相機：

if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { 
     NSArray *media = [UIImagePickerController 
          availableMediaTypesForSourceType: UIImagePickerControllerSourceTypeCamera]; 

     if ([media containsObject:(NSString*)kUTTypeImage] == YES) { 
      UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
      picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
      //picker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto; 
      [picker setMediaTypes:[NSArray arrayWithObject:(NSString *)kUTTypeImage]]; 

      picker.delegate = self; 
      [self presentModalViewController:picker animated:YES]; 
      //[picker release]; 

     } 
     else { 
      UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Unsupported!" 
                  message:@"Camera does not support photo capturing." 
                  delegate:nil 
                cancelButtonTitle:@"OK" 
                otherButtonTitles:nil]; 
      [alert show]; 
      [alert release]; 
     } 

    } 
    else { 
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Unavailable!" 
                 message:@"This device does not have a camera." 
                 delegate:nil 
               cancelButtonTitle:@"OK" 
               otherButtonTitles:nil]; 
     [alert show]; 
     [alert release]; 
    }

然後，通過實施uiimagepickercontrollerdelegate保存照片和保存功能：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 
    NSLog(@"Media Info: %@", info); 
    NSString *mediaType = [info valueForKey:UIImagePickerControllerMediaType]; 

    if([mediaType isEqualToString:(NSString*)kUTTypeImage]) { 
     UIImage *photoTaken = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; 

     //Save Photo to library only if it wasnt already saved i.e. its just been taken 
     if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) { 
      UIImageWriteToSavedPhotosAlbum(photoTaken, self, @selector(image:didFinishSavingWithError:contextInfo:), nil); 
     } 


    } 

    [picker dismissModalViewControllerAnimated:YES]; 
    [picker release]; 
} 

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { 
    UIAlertView *alert; 
    //NSLog(@"Image:%@", image); 
    if (error) { 
     alert = [[UIAlertView alloc] initWithTitle:@"Error!" 
              message:[error localizedDescription] 
              delegate:nil 
           cancelButtonTitle:@"OK" 
           otherButtonTitles:nil]; 
     [alert show]; 
     [alert release]; 
    } 

} 

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { 
    [picker dismissModalViewControllerAnimated:YES]; 
}

圖像更多信息：didFinishSaving ....可以在這裏找到

http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIKitFunctionReference/Reference/reference.html

也可以看看這個帖子

https://stackoverflow.com/questions/1282830/uiimagepickercontroller-uiimage-memory-and-more

來源

2011-07-25 07:13:03

這對我來說是正確的工作..我捕獲的圖像正在成功保存到設備庫，但我想知道是否有可能將圖像保存在畫廊的特定文件夾（如新專輯）？謝謝 –

它是不可能在模擬器中。您必須使用該設備。

來源

2011-07-25 06:57:39 Heena

我希望你意識到模擬器沒有相機.....所以我猜這是不可能的。你絕對可以使用一個設備....你可以使用UIImagePickerController捕捉圖像。

來源

2011-07-25 07:13:52 visakh7

有3個prerequesites拍照編程需要：

的裝置需要具有由

照相機檢查

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])

相機控制需要被隱藏（選擇器是一個的UIImagePickerController ）
```
picker.showsCameraControls = NO; 
```
使用takePi來自UIImagePickerController

[picker takePicture];

附註，因爲它確實讓我誤了幾分鐘，takePicture方法也會關閉視圖。

還張貼在這裏Other Stack answer

來源

2014-04-26 14:43:04 GrandSteph

如何從相機拍攝照片並以編程方式保存在照片庫中？

回答

相關問題