大约有 9,200 项符合查询结果(耗时:0.0291秒) [XML]
Switching to a TabBar tab view programmatically?
Let's say I have a UIButton in one tab view in my iPhone app, and I want to have it open a different tab in the tab bar of the TabBarController . How would I write the code to do this?
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Store images in a MongoDB database
...arger than 16MB" - When should I use GridFS?
MongoDB BSON documents are capped at 16 MB. So if the total size of your array of files is less than that, you may store them directly in your document using the BinData data type.
Videos, images, PDFs, spreadsheets, etc. - it doesn't matter, they are...
Navigation bar appear over the views with new iOS7 SDK
In the earlier versions it is working correctly. The search bar is appearing below the statusbar and navigation bar. The tableview is appearing below the search bar
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Function to clear the console in R and RStudio
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Works in RStudio on Mac, but not in R.app! In R.app the command Cmd+Alt+L clears the screen, not Ctrl+L... Is there a similar 'code' to send that key combination to the R.app? (I see that \014 is the ASCII code for Form Feed, so I guess it is not sending the key ...
How do you reset the stored credentials in 'git credential-osxkeychain'?
...some reason I couldn't find any Git/GitHub credentials within the Keychain app, but this worked. Thanks!
– Donald
Mar 22 '16 at 15:35
5
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Why are there two build.gradle files in an Android Studio project?
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<PROJECT_ROOT>\app\build.gradle is specific for app module.
<PROJECT_ROOT>\build.gradle is a "Top-level build file" where you can add configuration options common to all sub-projects/modules.
If you use another module in your projec...
Android notification doesn't disappear after clicking the notifcation
...LT_LIGHTS & Notification.FLAG_AUTO_CANCEL the notification doesn't disappear after clicking it. Any ideas what I'm doing wrong?
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.gitignore for Visual Studio Projects and Solutions
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Well, I dont know (enough?) to say its a bug. I just happend to be using Publish/ as a Controller name, and as Project Folder names. I think this is just an edge case. Just something to save a few hours of your life :)
– Rex Whitten
Oct 30 ...
Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
Why would you create a "Implicitly Unwrapped Optional" vs creating just a regular variable or constant?
If you know that it can be successfully unwrapped then why create an optional in the first place?
For example, why is this:
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Mac OSX Lion DNS lookup order [closed]
...127.0.0.1 mydomain.com
entry in your hosts file.
Interestingly, if you happen to have a local webserver running on 127.0.0.1:80 and your browser receives a response from the webserver (error or otherwise), no AAAA query is issued, as it seems to be satisfied that a TCP connection was at least pos...