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Retrieving the last record in each group - MySQL
There is a table messages that contains data as shown below:
27 Answers
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jQuery UI sliders on touch devices
I'm developing a website using jQuery UI, and there are several elements on my site that appear to be incompatible when viewed on touchscreen devices; they don't cause any errors, but the behavior is not what it should be.
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UIActivityViewController crashing on iOS 8 iPads
I am currently testing my app with Xcode 6 (Beta 6). UIActivityViewController works fine with iPhone devices and simulators but crashes with iPad simulators and devices (iOS 8) with following logs
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Google Play on Android 4.0 emulator
How can I install the Google Play .apk onto my Android 4.0 emulator?
8 Answers
8
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“Collection was mutated while being enumerated” on executeFetchRequest
I'm stuck on a problem for hours now and having read everything about this on stackoverflow (and apply every advices found), I'm now officially in need for help. ;o)
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jQuery .on function for future elements, as .live is deprecated [duplicate]
...dd a handler for the click event of future <div> elements, that don't exist yet. Normally, I would use jQuery's .live function to handle this, but it seems that it is now deprecated in favor of .on .
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Database development mistakes made by application developers [closed]
What are common database development mistakes made by application developers?
40 Answers
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Do C# Timers elapse on a separate thread?
Does a System.Timers.Timer elapse on a separate thread than the thread that created it?
5 Answers
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安卓防止息屏方案深度调研 - 小米红米MIUI专项解决 - App应用开发 - 清泛IT...
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一、通用方案（标准Android）
方案1：FLAG_KEEP_SCREEN_ON（最推荐）
// Activity中
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
// 或XML布局
android:keepScreenOn="true"
- 优点：不需要WAKE_LOCK权限，系统自动管理生...
Is the creation of Java class files deterministic?
...enerated class files always identical? Can there be a difference depending on the operating system or hardware ? Except of the JDK version, could there be any other factors resulting in differences? Are there any compiler options to avoid differences? Is a difference only possibly in theory or do...