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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...
Making the Android emulator run faster
...sluggish. For some devices, like the Motorola Droid and the Nexus One, the app runs faster in the actual device than the emulator. This is a problem when testing games and visual effects.
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Assign width to half available screen width declaratively
...tend to use it as a filler. layout_width="0dp" is actually the recommended approach according to Android documentation.
– Muz
Oct 10 '13 at 10:02
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How to get the Android device's primary e-mail address
...suse a user's email address or other personal information, bad things can happen.
Method A: Use AccountManager (API level 5+)
You can use AccountManager.getAccounts or AccountManager.getAccountsByType to get a list of all account names on the device. Fortunately, for certain account types (includi...
Set element focus in angular way
...actory that is created via attribute instead of waiting for some event to happen?
– Pratik Gaikwad
Jun 19 '15 at 16:48
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jQuery Mobile: document ready vs. page events
...fter a page refresh. This can be a very subtle bug. On some systems it may appear that it works fine, but on others it may cause erratic, difficult to repeat weirdness to occur.
Classic jQuery syntax:
$(document).ready(function() {
});
To solve this problem (and trust me this is a problem) jQue...
Should Gemfile.lock be included in .gitignore?
...gem, then DO NOT check in your Gemfile.lock. If you are working on a Rails app, then DO check in your Gemfile.lock.
Here's a nice article explaining what the lock file is.
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After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
..._home) instead on a Mac and then set the current jdk via "Java Preferences.app".
Set JAVA_HOME in ~/.profile
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SHA-1 fingerprint of keystore certificate
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If you're writing Android apps on Xamarin, use this: keytool -list -v -keystore "%USERPROFILE%\AppData\Local\Xamarin\Mono for Android/debug.keystore" -alias androiddebugkey -storepass android -keypass android
– Jay Sidri
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Serving static files with Sinatra
...one page website only using HTML, CSS and JavaScript. I want to deploy the app to Heroku, but I cannot find a way to do it. I am now trying to make the app working with Sinatra.
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