Question

我已经遵循类似SO问题的建议，似乎无法使这项工作成功。我正在开发一款游戏，报告最后得分，然后是最后得分的分享按钮。

这适用于iPhone，我的iPad代码如下所示。一旦我点击“共享”按钮，iPad版本就会崩溃。此代码来自this tutorial on Coding Explorer。

iPad代码（不起作用）

- (IBAction)shareButton:(id)sender;
{
    NSString * text = [NSString stringWithFormat:@"I just scored %li in Flying Freddy. Think you can beat it? https://itunes.apple.com/app/id1033007818", (long)_score];

NSArray *objectsToShare = @[text];

UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil];

NSArray *excludeActivities = @[UIActivityTypeAirDrop,
                               UIActivityTypePrint,
                               UIActivityTypeAssignToContact,
                               UIActivityTypeSaveToCameraRoll,
                               UIActivityTypeAddToReadingList,
                               UIActivityTypePostToFlickr,
                               UIActivityTypePostToVimeo];

activityVC.excludedActivityTypes = excludeActivities;

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

iPhone代码（确实有效）

- (IBAction)ShareIt {

    NSString * text = [NSString stringWithFormat:@"I just scored %li in Flying Freddy. Think you can beat it? https://itunes.apple.com/app/id1033007818", (long)_score];

    NSArray * activityItems = @[text];
    UIActivityViewController * avc = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
    avc.excludedActivityTypes = @[ UIActivityTypePrint, UIActivityTypeCopyToPasteboard, UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll];

    [self presentViewController:avc animated:YES completion:nil];    
}

Answer 1

您必须添加源视图。

尝试添加此行：

var lineByLine = require('n-readlines');
var liner = new lineByLine('./textFile.txt');

var line;
var lineNumber = 0;
while (line = liner.next()) {
    console.log('Line ' + lineNumber + ': ' + line.toString('ascii'));
    lineNumber++;
}

console.log('end of line reached');

您还可以添加箭头方向：

activityVC.popoverPresentationController.sourceView = self.view;

Answer 2

我还必须为pipiks答案设置modalPresentationStyle，preferredContentSize和sourceRect。

UIActivityViewController无法在iPad上运行？ iOS 8

2 个答案: