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Is AsyncTask really conceptually flawed or am I just missing something?
...and deal with running into times when it is null, or have the background thread just take the Context.getApplicationContext() which is a single global instance for the app. The application context is restricted in what you can do (no UI like Dialog for example) and requires some care (registered re...
getSupportActionBar from inside of Fragment ActionBarCompat
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While this question has an accepted answer already, I must point out that it isn't totally correct: calling getSupportActionBar() from Fragment.onAttach() will cause a NullPointerException when the activity is rotated.
Short answer:
Use ((ActionBarActivity)getActivit...
Why prefer two's complement over sign-and-magnitude for signed numbers?
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Nothing changes when writes or reads. Only applicable when addition or subtraction.
– Talespin_Kit
Jan 15 '17 at 18:47
add a commen...
How to delete a word and go into insert mode in Vim?
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:help objects in vim to read more about these sorts of selections.
– Aaron
Apr 22 '13 at 15:39
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Cross field validation with Hibernate Validator (JSR 303)
... seems cleaner both from a usability standpoint (his annotation is easy to read and quite functional vs. inelegant javascript->java references), and from a scalability standpoint (I assume there's reasonable overhead to handle the javascript, but maybe Hibernate is caching the compiled code at le...
How to get all child inputs of a div element (jQuery)
...find' method can be used to get all child inputs of a container that has already been cached to save looking it up again (whereas the 'children' method will only get the immediate children). e.g.
var panel= $("#panel");
var inputs = panel.find("input");
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Fastest way to check if a string is JSON in PHP?
...? Check for is_array(json_decode($str, true)) and some time later when you read it you will understand that decoded must be only an array. Much harder to guess is_object(json_decode($MyJSONArray)) "Oh, here i am checking for decoded is an array or not?"
– Roman M. Koss
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maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e
...o Maven... -> Update Project Configuration on your project after this.
Read more: http://wiki.eclipse.org/M2E_plugin_execution_not_covered#m2e_maven_plugin_coverage_status
Option 2: Global Eclipse Override
To avoid changing your POM files, the ignore override can be applied to the whole worksp...
Editing the git commit message in GitHub
...t to push that commit, you have to force that push (git push -f). But if already someone pulled your old commit and started a work based on that commit, he would have to rebase his work onto your new commit.
share
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How to convert an entire MySQL database characterset and collation to UTF-8?
...ed for newly created columns. It does not convert existing columns that already have a char set set.
– newspire
May 24 '11 at 20:15
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