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Switching between Android Navigation Drawer image and Up caret when using fragments

When using the Navigation Drawer the Android devs are recommending that in the ActionBar "only those screens that are represented in the Navigation Drawer should actually have the Navigation Drawer image" and that "all other screens have the traditional up carat." ...
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What is base 64 encoding used for?

I've heard people talking about "base 64 encoding" here and there. What is it used for? 18 Answers ...
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What is the easiest/best/most correct way to iterate through the characters of a string in Java?

StringTokenizer ? Convert the String to a char[] and iterate over that? Something else? 15 Answers ...
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In C++, if throw is an expression, what is its type?

... According to the standard, 5.16 paragraph 2 first point, "The second or the third operand (but not both) is a throw-expression (15.1); the result is of the type of the other and is an rvalue." Therefore, the conditional operator doesn't care w...
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Different ways of adding to Dictionary

What is the difference in Dictionary.add(key, value) and Dictionary[key] = value ? 8 Answers ...
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How to achieve code folding effects in Emacs?

...ntioned somewhere? Type C-sfoo, find the definition, press enter, read it, and then press C-x C-x to go back to where you were. Simple and very useful. Most modes support imenu. M-ximenu will let you jump to a function definition (etc.) by name. You can also bind it to a mouse click to get a men...
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Difference between List, List, List, List, and List

...the differences between List, List<?>, List<T>, List<E>, and List<Object>? 10 Answers ...
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MySQL Cannot drop index needed in a foreign key constraint

...n key might not be as obvious. To find all foreign keys related to a table and column, you can use this query: dba.stackexchange.com/questions/102371/… – charlax Jun 12 '19 at 14:54 ...
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How did Google manage to do this? Slide ActionBar in Android application

...e hierachyviewer! (Located in the tools directory) There's the DecorView, and a LinearLayout as a child. This LinearLayout contains both the ActionBar and the other content. So, you can simply apply some FrameLayout.LayoutParams to this LinearLayout and get some space on the left side this way. The...
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ExecuteReader requires an open and available Connection. The connection's current state is Connectin

...lication execution, many identical connections will be repeatedly opened and closed. To minimize the cost of opening connections, ADO.NET uses an optimization technique called connection pooling. Connection pooling reduces the number of times that new connections must be opened. The poo...