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Xcode 'Build and Archive' menu item disabled

... Why? Because Apple almost only does user experience testing for non-developers, clearly. – Luke Stanley Jan 22 '13 at 17:10 ...
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MVC Vs n-tier architecture

...n MVC(which is an architectural pattern) and an n-tier architecture for an application. I searched for it but couldn't find a simple explanation. May be I am a bit naive on MVC concepts, so if anyone can explain the difference then it would be great. ...
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Displaying the build date

I currently have an app displaying the build number in its title window. That's well and good except it means nothing to most of the users, who want to know if they have the latest build - they tend to refer to it as "last Thursday's" rather than build 1.0.8.4321. ...
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Simple Log to File example for django 1.3+

... 'level': 'DEBUG', 'propagate': False, }, 'MYAPP': { 'handlers': ['console', 'logfile'], 'level': 'DEBUG', }, } } Now what does all of this mean? Formaters I like it to come out as the same style as ./manage.py runserver Handlers ...
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How do I plot in real-time in a while loop using matplotlib?

...t instead create two lists x and y and call plt.plot(x,y) 2. in your loop, append new data values to the two lists 3. call plt.gca().lines[0].set_xdata(x); plt.gca().lines[0].set_ydata(y); plt.gca().relim(); plt.gca().autoscale_view(); plt.pause(0.05); – Trevor Boyd Smith ...
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Xcode 4 - slow performance

...r interactions, e.g. editing code, scrolling areas etc. This particularly happens with larger scale projects with many controllers/view files etc. ...
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What is the difference between '@' and '=' in directive scope in AngularJS?

... especially when not using interpolation and just trying to pass a string. Apparently the pull request has indeed been merged into the development builds and is in 1.1.5 and 1.2.0 RC builds. Good on them for fixing this very unintuitive behavior! – Ibrahim Sep ...
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from jquery $.ajax to angular $http

...JS way of calling $http would look like: $http({ url: "http://example.appspot.com/rest/app", method: "POST", data: {"foo":"bar"} }).then(function successCallback(response) { // this callback will be called asynchronously // when the response is available $scope.d...
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java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState

I'm using the support library for my app. In my FragmentActivity I'm using an AsyncTask for downloading data from internet. In the onPreExecute() method I add a Fragment and in the onPostExecute() method I remove it again. When the orientation is changed in between, I get the above mentioned excepti...
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How to correctly require a specific commit in Composer so that it would be available for dependent p

...rette library at that hash, with a dev flag, in both your library and your application. Something like this should work in the application composer.json: { "name": "bar/bar-app", "repositories": [ { "type": "vcs", "url": "ssh://git.example.com/foo-lib" ...