iOS共享操作表-iPad崩溃

Question

我有这个share按钮，从屏幕底部弹出共享菜单。

这是我使用的代码：

-(IBAction)ShareButton:(id)sender {
    NSString *texttoshare = @"My Text"; 
    UIImage *imagetoshare = _MyImage;
    NSArray *activityItems = @[texttoshare, imagetoshare];

    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
    activityVC.excludedActivityTypes = @[UIActivityTypeAssignToContact, UIActivityTypePrint];

   [self presentViewController:activityVC animated:TRUE completion:nil];
}

它可以处理大量的iPhone，但在iPad上会崩溃。

如何为iPad实现正确的ViewController？

我猜可以在其中添加一些内容：

if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

    //add alternative for iPad
}

谢谢。

Answer 1

执行以下操作：

将此代码放入viewDidLoad ：

UIBarButtonItem *shareButton;
shareButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(share:)];
self.navigationItem.rightBarButtonItem = shareButton;

然后创建一个动作。

-(void)share:(id)sender {

UIImage *image = [UIImage imageWithData:[chart getImage]];
NSArray *activityItems = @[image];

UIActivityViewController *activityViewControntroller = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];

activityViewControntroller.excludedActivityTypes = @[];

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

    activityViewControntroller.popoverPresentationController.sourceView = self.view;
    activityViewControntroller.popoverPresentationController.sourceRect = CGRectMake(self.view.bounds.size.width/2, self.view.bounds.size.height/4, 0, 0);

}

[self presentViewController:activityViewControntroller animated:true completion:nil];
}

希望它会工作..