Iphone 在imagePickerController完成后，向viewController显示模态

在从

imagePickerController

中选择图像后，我需要调用视图控制器，因此我使用了以下代码：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    imageEditorView = [[ImageEditorViewController alloc]initWithNibName:@"ImageEditorViewController" bundle:nil];
    imageEditorView.mainViewController = self;
    imageEditorView.imageBG = [info objectForKey:UIImagePickerControllerOriginalImage];

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

}

但调试器给了我一个警告：

Warning: Attempt to present <ImageEditorViewController: 0xaa42320> on
     <ViewController: 0x9b58680> whose view is not in the window hierarchy!

---

首先，您必须关闭UIImagePickerController，然后只有您可以使用presentViewController来创建另一个视图控制器

您可以使用下面的代码

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

[self dismissModalViewControllerAnimated:YES];
imageEditorView = [[ImageEditorViewController alloc]initWithNibName:@"ImageEditorViewController" bundle:nil];
imageEditorView.mainViewController = self;
imageEditorView.imageBG = [info objectForKey:UIImagePickerControllerOriginalImage];

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

}

---

我认为在

AppDelegate

中，您没有设置

窗口的
rootViewController
。
因此，与其将
子视图
添加到
窗口
，不如将
窗口的
根视图控制器

另一件事可能是您当前的
viewController
实际上是另一个
viewController
的
子视图

我建议将
self.window.rootViewController=yourMaincontroller
放入
AppDelegate
更新：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    imageEditorView = [[ImageEditorViewController alloc]initWithNibName:@"ImageEditorViewController" bundle:nil];
    imageEditorView.mainViewController = self;
    imageEditorView.imageBG = [info objectForKey:UIImagePickerControllerOriginalImage];


    [self performSelector:@selector(presentPicture) withObject:nil afterDelay:2.0];
    [self dismissModalViewControllerAnimated:YES];

}


-(void)presentPicture 
{
     [self presentViewController:imageEditorView animated:YES completion:nil];
}

使用以下代码，如：

[self dismissViewControllerAnimated:YES completion:^{
   [self.parentViewController presentViewController:imageEditorView animated:YES completion:nil];
}];

警告：在演示过程中尝试在上演示当我解除它时！首先删除图像选择器，然后尝试显示视图控制器。只需发布didFinishLaunchingWithOptions方法的代码请…@ParasJoshi签出编辑question@Momi现在用我的didFinishLaunchingWithOptions方法替换didFinishLaunchingWithOptions方法…xcode自动将这行代码放入appDelegate，不需要添加。谢谢，但问题相同！“警告：尝试显示不在窗口层次结构中的视图！”看到这个答案，我认为这是因为您的窗口不适用于多页窗口，所以。。。但是现在它可以用这个代码工作，但是我想这里遗漏了一些东西，伙计。@Momi只是改变了[self dismissModalViewControllerAnimated:YES]的流程；行如果不起作用的话。。只需尝试一下，并添加您想要的延迟时间，但这是最好的..应用程序崩溃与此问题：
由于未捕获的异常“NSInvalidArgumentException”终止应用程序，原因：'-[ViewController dismissModalViewController:完成：]：无法识别的选择器发送到实例0x9b2f3b0
@Momi:您正在使用哪个ios版本？@Momi:我的答案中有一个输入错误，现在检查答案
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    imageEditorView = [[ImageEditorViewController alloc]initWithNibName:@"ImageEditorViewController" bundle:nil];
    imageEditorView.mainViewController = self;
    imageEditorView.imageBG = [info objectForKey:UIImagePickerControllerOriginalImage];


    [self performSelector:@selector(presentPicture) withObject:nil afterDelay:2.0];
    [self dismissModalViewControllerAnimated:YES];

}


-(void)presentPicture 
{
     [self presentViewController:imageEditorView animated:YES completion:nil];
}

[self dismissViewControllerAnimated:YES completion:^{
   [self.parentViewController presentViewController:imageEditorView animated:YES completion:nil];
}];