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How to handle screen orientation change when progress dialog and background thread active?
...re starting, it pops up a progress dialog. The dialog is dismissed on the handler. This all works fine, except when screen orientation changes while the dialog is up (and the background thread is going). At this point the app either crashes, or deadlocks, or gets into a weird stage where the app doe...
What is the main purpose of setTag() getTag() methods of View?
What is the main purpose of such methods as setTag() and getTag() of View type objects?
7 Answers
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How to view/delete local storage in Firefox?
... on the tiny bug icon in the lower right)
Go to the DOM tab
Scroll down to and expand localStorage
Right-click the item you wish to delete and press Delete Property
Developer Console Method
You can enter these commands into the console:
localStorage; // click arrow to view object's properties
lo...
How to reverse-i-search back and forth? [duplicate]
I use reverse-i-search often, and that's cool. Sometime though when pressing CTRL + r multiple times, I pass the command I am actually looking for. Because CTRL + r searches backward in history, from newest to oldest, I have to:
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How to determine if a record is just created or updated in after_save
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It's best to differentiate with an after_update and an after_create. The callbacks can share a common method that takes an argument to indicate if it's a create or update.
– matthuhiggins
Oct 9 '13 at 23:44
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How can I get the URL of the current tab from a Google Chrome extension?
I'm having fun with Google Chrome extension, and I just want to know how can I store the URL of the current tab in a variable?
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How to disable postback on an asp Button (System.Web.UI.WebControls.Button)
...ly show it for logged in users, but i want it to run a javascript function and it seems when it's runat="server" it always calls the postback event.
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How to check which version of v8 is installed with my NodeJS?
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Easy way:
Type in command line: node -p process.versions.v8
Hard worker way:
Type node --version to get the Node.js version.
Go to the Node.js Changelogs.
Find and open appropriate Node.js version change log.
Look for notes containing V8 to.
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How to lock orientation during runtime
...ing runtime? For example I'd like to allow the user to lock the screen to landscape if the user currently in landscape and toggle the menu option.
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What does a lazy val do?
...3
In contrast to a method (defined with def) a lazy val is executed once and then never again. This can be useful when an operation takes long time to complete and when it is not sure if it is later used.
scala> class X { val x = { Thread.sleep(2000); 15 } }
defined class X
scala> class Y ...