ios Attempt to present * on * whose view is not in the window hierarchy!

本文链接：https://blog.youkuaiyun.com/qq_26420853/article/details/89884671

作者作为iOS小白，在公司要求接入系统分享时遇到调不起iOS系统分享的问题。通过日志发现问题，给出原代码，经谷歌百度后修改部分代码解决了该问题，后续还需进行系统分享的排序和筛选。

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ios小白一个，最近公司让接直接接系统分享，遇到问题，一直调不起ios系统分享，看日志如下

Warning: Attempt to present <UIActivityViewController: 0x1058c1600> on <SystemShareController: 0x10504d160> whose view is not in the window hierarchy!

废话不多说，代码如下

-(void) startSystemShare {
NSLog(@"系统分享系统分享 startSystemShare ");

    // 1、设置分享的内容，并将内容添加到数组中
    NSString *shareText = @"我的个人博客";
    UIImage *shareImage = [UIImage imageNamed:@"Icon-58.png"];
    NSURL *shareUrl = [NSURL URLWithString:@"http://blog.youkuaiyun.com/flyingkuikui"];
    NSArray *activityItemsArray = @[shareText,shareImage,shareUrl];

    // 自定义的CustomActivity，继承自UIActivity
    CustomActivity *customActivity = [[CustomActivity alloc]initWithTitle:@"wangsk" ActivityImage:[UIImage imageNamed:@"custom.png"] URL:[NSURL URLWithString:@"http://blog.youkuaiyun.com/flyingkuikui"] ActivityType:@"Custom"];
    NSArray *activityArray = @[customActivity];

    // 2、初始化控制器，添加分享内容至控制器
    UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItemsArray applicationActivities:activityArray];
    activityVC.modalInPopover = YES;
    // 3、设置回调
    if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0) {
        // ios8.0 之后用此方法回调
        UIActivityViewControllerCompletionWithItemsHandler itemsBlock = ^(UIActivityType __nullable activityType, BOOL completed, NSArray * __nullable returnedItems, NSError * __nullable activityError){
            NSLog(@"test 系统分享 activityType == %@",activityType);
            if (completed == YES) {
                NSLog(@"test 系统分享 completed");
            }else{
                NSLog(@"test 系统分享 cancel");
            }
        };
        activityVC.completionWithItemsHandler = itemsBlock;
    }else{
        // ios8.0 之前用此方法回调
        UIActivityViewControllerCompletionHandler handlerBlock = ^(UIActivityType __nullable activityType, BOOL completed){
            NSLog(@"test 系统分享 activityType == %@",activityType);
            if (completed == YES) {
                NSLog(@" test 系统分享 completed");
            }else{
                NSLog(@"test 系统分享 cancel");
            }
        };
        activityVC.completionHandler = handlerBlock;
    }
    // 4、调用控制器
    [self presentViewController:activityVC animated:YES completion:nil];
}

也是各种谷歌百度

解决这个问题修改了一点点代码

// 4、调用控制器
AppController *app = (AppController *)[UIApplication sharedApplication].delegate;
[app.viewController presentViewController:activityVC animated:YES completion:nil];

然后ios系统分享就可以调出来了，接下来还要走系统分享的排序和筛选，干活去............

代码是借用这位前辈的

https://github.com/FlyingKuiKui/ShareTest