UIImagePickerController：如何添加按钮并选择照片答案

【问题标题】：UIImagePickerController : How do I add button and select photoUIImagePickerController：如何添加按钮并选择照片
【发布时间】：2013-05-23 15:28:28
【问题描述】：

如何添加按钮并选择照片。请帮忙告诉我如何解决

【问题讨论】：

帮帮我，我遇到麻烦了，SO 不接受这类问题。请展示您迄今为止所做的尝试，以使人们对您的问题感兴趣。
你好。我只想在 iphone 相机上添加按钮

标签： iphone ios objective-c ios4

【解决方案1】：

您需要创建一个 CustomOverlayView。然后像这样配置你的选择器：

    overlay = [[CustomOverlayView alloc]initWithFrame:self.view.bounds];
    overlay.delegate = self;
    picker = [[UIImagePickerController alloc]init];
    picker.delegate = self;
    picker.navigationBarHidden = YES;
    picker.toolbarHidden = YES;
    picker.wantsFullScreenLayout = YES;
    picker.allowsEditing = YES;
    if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]){

        picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    }
    else{
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    }
    picker.showsCameraControls = NO;
    picker.cameraOverlayView = overlay;

【讨论】：

【解决方案2】：

这将起作用：

- (void)showImagePicker:(UIImagePickerControllerSourceType)source{
    UIImagePickerController *imgPicker = [[UIImagePickerController alloc] init];
    imgPicker.sourceType = source;



    imgPicker.delegate = self;
    [self presentModalViewController:ipc animated:YES];
}

按钮按下动作：

- (IBAction)chooseImage:(id)sender {

    [self showImagePicker:UIImagePickerControllerSourceTypePhotoLibrary];

}

然后这样做：

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {

    [picker dismissViewControllerAnimated:YES completion:nil];
}

或通过正确的操作执行此代码

【讨论】：

问题是关于在左下角添加小图像预览。
你能帮我举个例子吗