iOS：挑选照片后如何在视图之间切换？

Question

我正在编写一个应用程序，用户可以在库中选择一张照片，发送到服务器。 这是我的代码

-（IBAction）btnTakePictureClicked { UIImagePickerController* 选择器 = [[UIImagePickerController alloc] init]; 选择器.delegate=自己； picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [self presentModalViewController:picker animated:YES]; [选择器发布]； } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo{ [picker.parentViewControllerdismissModalViewControllerAnimated:YES]; self.imgTemp = 图像； // 这些行应该在哪里？ Send* send = [[Send alloc] initWithNibName:@"Send Email" bundle:nil]; [self presentModalViewController：发送动画：YES]； [发送发布]； } - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { [picker.parentViewControllerdismissModalViewControllerAnimated:YES]; }

我希望在挑选照片后，它会变为发送页面。但是，它还是回到了首页。

这些行应该在哪里？

Send* send = [[Send alloc] initWithNibName:@"Send Email" bundle:nil]; [self presentModalViewController：发送动画：YES]； [发送发布]；

Answer 1

如果你呈现一个带有动画的模态视图控制器，在完成的块中释放它，你可以尝试：

    Send* send = [[Send alloc] initWithNibName:@"Send Email" bundle:nil];
    [self presentViewController:send animated:YES completion:^{
        [send release];
    }];

Answer 2

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo{
    [picker.parentViewController dismissModalViewControllerAnimated:YES];
    self.imgTemp = image;
.....

在这里，您将“是”改为“否”。即，关闭没有动画的模态视图。

Answer 3

一旦你选择了图像，它就会移动到发送视图控制器

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:UIImage *)image editingInfo:(NSDictionary *)editingInfo{
self.imgTemp = image;
Send* send = [[Send alloc] initWithNibName:@"Send Email" bundle:nil];
[self presentModalViewController:send animated:YES];
[send release];

}