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Android - Set fragment id

... can set inside the FragmentTransaction which can be used to uniquely identify a Fragment. As Aleksey pointed out, you can pass an ID to FragmentTransaction's add(int, Fragment) method. However, this does not specify the ID for a Fragment. It specifies the ID of a ViewGroup to insert the Fragment i...
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Does MySQL ignore null values on unique constraints?

... this little feature has been very difficult to find an answer to that does not require adding a new column to the database or upgrading MySQL on a very old application. I was really looking for a solution like Postgres where I can use COALESCE but it seems the...
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How do I get Month and Date of JavaScript in 2 digit format?

... @KasperHoldum–getMonth and getDate return numbers, not strings. And if compatibility with Strings is required, then '0' + Number(n) will do the job. – RobG Jul 23 '12 at 0:16 ...
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How to revert a “git rm -r .”?

... git reset HEAD Should do it. If you don't have any uncommitted changes that you care about, then git reset --hard HEAD should forcibly reset everything to your last commit. If you do have uncommitted changes, but the first command doesn't work, then s...
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How to include “zero” / “0” results in COUNT aggregate?

...e function count() will not count NULL values and thus you'll get a zero. If you want to learn more about outer joins, here is a nice tutorial: http://sqlzoo.net/wiki/Using_Null share | improve thi...
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Font size of TextView in Android application changes on changing font size from native settings

I want to specify my own text size in my application, but I am having a problem doing this. 14 Answers ...
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Why extend the Android Application class?

...ither preferable to another approach or necessary to accomplish something. If you have an expensive, frequently used object you can initialize it in an IntentService when you detect that the object isn't currently present. Application itself runs on the UI thread, while IntentService runs on its own...
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Inserting multiple rows in a single SQL query? [duplicate]

...tion and answer are old, but I like to mention that there is a functional difference between using the method mentioned in the question and in this answer. The first executes triggers X amount of times with 1 record in the inserted table. The second executes triggers 1 time with x amount of records ...
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URL encode sees “&” (ampersand) as “&” HTML entity

I am encoding a string that will be passed in a URL (via GET). But if I use escape , encodeURI or encodeURIComponent , & will be replaced with %26amp%3B , but I want it to be replaced with %26 . What am I doing wrong? ...
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Android: Scale a Drawable or background image?

...id:src="@drawable/list_bkgnd" /> Then it will be centered in the view if used as background. There are also other flags: http://developer.android.com/guide/topics/resources/drawable-resource.html share | ...