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POaddSubview not calling QLPreviewControllerDataSource instances when offline
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2013-03-27T21:05:55.873
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2013-03-28T11:32:35.163
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2013-03-28T04:17:18.423
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Body
I have the following piece of code to add a <code>QLPreviewController</code> subview <pre><code>{ QLPreviewController *preview = [[QLPreviewController alloc] init]; preview.delegate = self; preview.dataSource = self; [self addChildViewController:preview]; [self.view addSubview:preview.view]; [preview didMoveToParentViewController:self]; self.previewController = preview; } -(NSInteger) numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller { return 1; } -(id) previewController:(QLPreviewController *)previewController previewItemAtIndex:(NSInteger)index { return self.url; } </code></pre> <code>self.url</code> is an <code>NSURL that</code> is located in NSTemporaryDirectory - file://localhost//.../blah.pdf My issue is that when my laptop is connected to the internet, the document shows up as a subview, but when my laptop is not connected, <code>numberOfPreviewItemsInPreviewController</code> & <code>previewItemAtIndex</code> do not get called. <ul> <li>I've tried a vanilla program with a simple view controller, and it seemed to work fine. (My app is more complex than that).</li> <li>When I try presenting the document as a modal view, it seems to work irrespective of whether or not the simulator is connected to the internet. <code>[self presentViewController:preview animated:NO completion:nil];</code> --> works consistently.</li> </ul> I need to get the subview working for online & offline modes, it would be great if someone could help!
Tags
<ios><addsubview><qlpreviewcontroller>
Title
addSubview not calling QLPreviewControllerDataSource instances when offline
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1. COTry using this link worked for me http://stackoverflow.com/questions/8493419/how-to-add-qlpreviewcontroller-as-subview-in-objective-c
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