ios - objective-c presentViewController 位置

Question

因此我有这样的 UIActivityViewConroller:

- (IBAction)Share:(id)sender {

    NSData *pdfData = [NSData dataWithContentsOfFile:self.pdfPath];

    UIActivityViewController * activityController = [[UIActivityViewController alloc] initWithActivityItems:@[pdfData] applicationActivities:nil];

    activityController.popoverPresentationController.sourceView = self.NavBar;

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

}

我的问题是它显示在 self.NavBar 的左侧，我想将它放在右侧，我该怎么做？

Answer 1

将 UIPopoverController 与 presentPopoverFromRect 一起使用

UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:postItems applicationActivities:nil];
UIPopoverController *popup = [[UIPopoverController alloc] initWithContentViewController:controller];
[popup presentPopoverFromRect:CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height/4, 0, 0)inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

根据需要更改 CGRect 的位置。