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How to detect if app is being built for device or simulator in Swift
In Objective-C we can know if an app is being built for device or simulator using macros:
20 Answers
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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...种流畅的帧率规定为60fps。
有了上面的背景，我们开发App的帧率性能目标就是保持在60fps，也就是说我们在进行App性能优化时心中要有如下准则：
换算关系：60帧/秒-----------16ms/帧；
准则：尽量保证每次在16ms内处理完所有的...
do you have kcachegrind like profiling tools for mac [closed]
... Protection: sudo ln -s /usr/local/bin/dot /usr/bin/dot Workaround: $ cd /Applications/qcachegrind.app/Contents/MacOS $ mv qcachegrind qcachegrind.bin $ echo ‘#!/bin/bash export PATH=”$PATH:/usr/local/bin” $(dirname $0)/qcachegrind.bin exit 0’ > qcachegrind $ chmod +x qcachegrind Then s...
Separate REST JSON API server and client? [closed]
I'm about to create a bunch of web apps from scratch. (See http://50pop.com/code for overview.) I'd like for them to be able to be accessed from many different clients: front-end websites, smartphone apps, backend webservices, etc. So I really want a JSON REST API for each one.
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How to change Android version and code version number?
...version and code version number Android Studio? I want to change apk file (app) on Google Play and I need to change Android version and code version number. I tried with this in AndroidManifest.xml file in Android Studio:
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Runtime vs. Compile time
...specially for people without much background in programming languages. To approach this problem, I find it helpful to ask
What invariants does the program satisfy?
What can go wrong in this phase?
If the phase succeeds, what are the postconditions (what do we know)?
What are the inputs and output...
Adding parameter to ng-click function inside ng-repeat doesn't seem to work
...string from a property of the binding object (the button), but it is not wrapped in quotes. Looks like AngularJS handles that for us. I got hung up on that for a few minutes.
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Rails 4: assets not loading in production
I'm trying to put my app into production and image and css asset paths aren't working.
18 Answers
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ViewPager with previous and next page boundaries
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Quoting myself from a blog post on this subject:
The third approach comes from Dave Smith, co-author of the well-regarded book Android Recipes. He went in a very different direction, using a custom container that disabled children clipping to show more than one page at a time.
His pu...
Rails I18n validation deprecation warning
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Important: Make sure your app is not using I18n 0.6.8, it has a bug that prevents the configuration to be set correctly.
Short answer
In order to silence the warning edit the application.rb file and include the following line inside the Rails::App...