Objective c 如何在UIImagePickerController popover中添加自定义按钮

当我从gallery中选择图像时，如何在

UIImagePickerController

popover中添加自定义按钮。默认情况下，这些按钮是Apple为UIImagePickerViewController提供的。因此，您必须使用一个属性，该属性是

allowsdediting

。您必须将其设置为

YES

因此，从gallery或camera中选择照片后，将显示这两个按钮

代码应该类似于：

-(void)openGallery {

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

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

-(void)openCamera {
    BOOL isCameraPresent = [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];
    if(isCameraPresent) {
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        picker.allowsEditing = YES;
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;

        // Add overlay view with custom button on it. Set frames to button as per your choice.
        UIView *viewOverlay = [[UIView alloc]initWithFrame:self.view.bounds];
        Create and initialise your `UIButton` here
        [viewOverlay addSubview:YOUR_BUTTON_OBJECT];

        picker.cameraOverlayView = viewOverlay;

        [self presentViewController:picker animated:YES completion:NULL];
    }
    else {
        NSLog(@"Camera not present");
    }
}

只有当

sourceType

为

UIImagePickerController源类型Camera

时，才能添加覆盖

确保已在视图控制器中确认

UIImagePickerControllerDelegate

协议

根据您的选择，点击按钮或操作表操作时调用这些操作

---

注意：UIImagePickerController的popover的UI取决于设备的iOS版本。明白了。默认情况下，这些按钮是Apple为UIImagePickerViewController提供的。因此，您必须使用一个属性，该属性是

allowsdediting

。您必须将其设置为

YES

因此，从gallery或camera中选择照片后，将显示这两个按钮

代码应该类似于：

-(void)openGallery {

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

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

-(void)openCamera {
    BOOL isCameraPresent = [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera];
    if(isCameraPresent) {
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        picker.allowsEditing = YES;
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;

        // Add overlay view with custom button on it. Set frames to button as per your choice.
        UIView *viewOverlay = [[UIView alloc]initWithFrame:self.view.bounds];
        Create and initialise your `UIButton` here
        [viewOverlay addSubview:YOUR_BUTTON_OBJECT];

        picker.cameraOverlayView = viewOverlay;

        [self presentViewController:picker animated:YES completion:NULL];
    }
    else {
        NSLog(@"Camera not present");
    }
}

只有当

sourceType

为

UIImagePickerController源类型Camera

时，才能添加覆盖

确保已在视图控制器中确认

UIImagePickerControllerDelegate

协议

根据您的选择，点击按钮或操作表操作时调用这些操作

---

注意：UIImagePickerController的popover的用户界面取决于设备的iOS版本。

您能用其中的设计图像更新问题吗？确切地说，您想要构建什么用户界面。在我从gallery中选择图像后，我需要图像选择器中的这些按钮。您可以用其中的设计图像更新问题吗？这正是您想要构建的UI。在我从gallery中选择图像后，我需要ImagePickerHanks@Pushkraj中的这些按钮，如果我想在这些方法中再添加一个按钮，我如何继续。这是我的需要。不，我不想在打开相机时添加覆盖，我需要在打开GalleryThank@Pushkraj的图像时添加覆盖，如果我想在这些方法中添加一个按钮，我如何继续。这是我的需要。不，我不想在打开相机时添加覆盖，我需要在打开画廊中的图像时添加覆盖