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What is the relationship between Looper, Handler and MessageQueue in Android?

... A Looper is a message handling loop: it reads and processes items from a MessageQueue. The Looper class is usually used in conjunction with a HandlerThread (a subclass of Thread). A Handler is a utility class that facilitates interacting with a Looper—mainly by posting messages and Runna...
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How to delete an item in a list if it exists?

... new_tag from a form text field with self.response.get("new_tag") and selected_tags from checkbox fields with 7 Answ...
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Connect different Windows User in SQL Server Management Studio (2005 or later)

... use with the "runas" command. Then, in SQL Management Studio 2005, just select the "Windows Authentication" and input the server you wanna connect to (even though the user that you can see greyed out is still the local user)... and it works! Don't ask me why ! :) Edit: Make sure to include ":14...
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How do I interactively unstage a particular hunk in git?

... @Nawaz: That's correct - git add -p filename selectively stages changes from that file, and git reset -p filename selectively unstages changes. There's also git checkout -p -- filename, which lets you selectively discard changes from a file. Warning: each of add and res...
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How to clear a notification in Android

... I don't know why this isn't upvoted more and selected as the answer. This was the solution I was looking for. Thanks! – loeschg Jan 29 '13 at 23:48 3 ...
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Create boolean column in MySQL with false as default value?

... into mytable () values (); Query OK, 1 row affected (0.00 sec) mysql> select * from mytable; +--------+ | mybool | +--------+ | 0 | +--------+ 1 row in set (0.00 sec) FYI: My test was done on the following version of MySQL: mysql> select version(); +----------------+ | version() ...
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How to install both Python 2.x and Python 3.x in Windows

...ed Python 2.7.6. How to... Start > in the search type in environment select "Edit environment variables to your account"1 Scroll down to Path, select path, click edit. Add C:\Python27; so you should have paths to both versions of Python there, but if you don't this you can easily edit it so th...
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What do I have to do to get Core Data to automatically migrate models?

...oordinator: %@",error); } Then you need to do a little trick in xCode: Select your xcdatamodel file Select the Design Menu at the top - then Data Model - then choose Add Model Version Your xcdatamodel file will then get moved into a new directory with the same name as your xcdatamodel file but w...
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Android Center text on canvas

...2)) ; //((textPaint.descent() + textPaint.ascent()) / 2) is the distance from the baseline to the center. canvas.drawText("Hello", xPos, yPos, textPaint); share | improve this answer |...
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How to turn on front flash light programmatically in Android?

...in android.. Update 4 If you want to set the intensity of light emerging from camera LED you can refer Can I change the LED intensity of an Android device? full post. Note that only rooted HTC devices support this feature. ** Issues:** There are also some problems while turning On/Off flashlight...