本文将带你了解IOS开发入门iOS调用系统照相机和相册，希望本文对大家学IOS有所帮助。

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/**

*   调用照相机

*/

-   (void)openCamera

{

UIImagePickerController   *picker = [[UIImagePickerController alloc]   init];

picker.delegate =   self;

picker.allowsEditing = YES;   //可编辑

//判断是否可以打开照相机

if   ([UIImagePickerController   isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])

{

//摄像头

picker.sourceType   = UIImagePickerControllerSourceTypeCamera;

[self   presentViewController:picker animated:YES   completion:nil];

}

else

{

NSLog(@"没有摄像头");

}

}

/**

*   打开相册

*/

-(void)openPhotoLibrary

{

//   Supported orientations has no common orientation with the application, and   [PUUIAlbumListViewController shouldAutorotate] is returning   YES

// 进入相册

if([UIImagePickerController   isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])

{

UIImagePickerController   *imagePicker = [[UIImagePickerController   alloc]init];

imagePicker.allowsEditing =   YES;

imagePicker.sourceType =   UIImagePickerControllerSourceTypePhotoLibrary;

imagePicker.delegate   = self;

[self presentViewController:imagePicker   animated:YES   completion:^{

NSLog(@"打开相册");

}];

}

else

{

NSLog(@"不能打开相册");

}

}

#pragma   mark - UIImagePickerControllerDelegate

//   拍照完成回调

-   (void)imagePickerController:(UIImagePickerController *)picker   didFinishPickingImage:(UIImage *)image editingInfo:(nullable   NSDictionary*)editingInfo   NS_DEPRECATED_IOS(2_0,   3_0)

{

NSLog(@"finish..");

if(picker.sourceType   ==   UIImagePickerControllerSourceTypeCamera)

{

//图片存入相册

UIImageWriteToSavedPhotosAlbum(image,   nil, nil, nil);

}

[self   dismissViewControllerAnimated:YES   completion:nil];

}

//进入拍摄页面点击取消按钮

-   (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

{

[self   dismissViewControllerAnimated:YES   completion:nil];

}

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