单击并打开 ipad 的相机时出现 uipopover 问题答案

【问题标题】：uipopover issues while click and open the camera for ipad单击并打开 ipad 的相机时出现 uipopover 问题
【发布时间】：2012-07-25 09:36:26
【问题描述】：

我在点击并打开 ipad 相机时遇到了 popoverview 问题，我编写了这样的代码

-(IBAction)business_takephotobtnClicked   // click the button show the popoverview

{ 

NSLog(@"business_takephotobtnClicked");
    appdelegate.takePhoto=2;

    popover = [[UIPopoverController alloc] 
               initWithContentViewController:imgclass];

    popover.popoverContentSize =  CGSizeMake(138,66);
    [popover presentPopoverFromRect:popbtn_business.bounds inView:popbtn_business 
    permittedArrowDirections:UIPopoverArrowDirectionUp + 
    UIPopoverArrowDirectionLeft 
    animated:YES]; 
}





-(IBAction) takePhoto:(id)sender // to open the camera

{




    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) 
    {

       self.contentSizeForViewInPopover=CGSizeMake(138,66);




        UIPicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        [self presentModalViewController:self.UIPicker animated:YES];

    }
    else {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"Camera is not available" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
        [alert show];
        [alert release];


    }

}

在点击按钮之前，弹出框像这样显示

点击拍照时（印楝照片按钮）。弹出窗口大小自动扩展，如 taht

但我在打开相机时也需要相同大小的弹出视图

提前致谢......

【问题讨论】：

查看此链接：-stackoverflow.com/questions/3458722/…

标签： ios uipopovercontroller

【解决方案1】：

而不是使用 XIB 使用以编程方式创建相机视图并执行以下操作

-(IBAction)popbtn_Click:(id)sender
{
    UIViewController* popoverContent = [[UIViewController alloc] init];
    UIView* popoverView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 230, 180)];
    popoverView.backgroundColor = [UIColor whiteColor];

    take_btn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    [take_btn setTitle:@"Take" forState:UIControlStateNormal];
    take_btn.frame=CGRectMake(2,2, 250, 60);
    [take_btn addTarget:self action:@selector(take_btnclick:) forControlEvents:UIControlEventTouchUpInside];
    [popoverView addSubview:take_btn];
}

-(void)take_btnclick:(id)sender
{
    [popoverController dismissPopoverAnimated:YES];

    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        UIPicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        [self presentModalViewController:self.UIPicker animated:YES];

        [popoverController dismissPopoverAnimated:YES];
    }
    else {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"Camera is not available" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
        [alert show];
        [alert release];
    }

    if (popoverController != nil)
    {
        [popoverController dismissPopoverAnimated:YES];
    }
}

【讨论】：