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Android: How can I get the current foreground activity (from a service)?

Is there a native android way to get a reference to the currently running Activity from a service? 12 Answers ...
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How do you determine what technology a website is built on? [closed]

Quite often I come across a nice looking or functional website, and wonder what technology was used to create it. What techniques are available to figure out what a particular website was built with? ...
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How to resume Fragment from BackStack if exists

I am learning how to use fragments. I have three instances of Fragment that are initialized at the top of the class. I am adding the fragment to an activity like this: ...
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?

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Creating Unicode character from its number

I want to display a Unicode character in Java. If I do this, it works just fine: 13 Answers ...
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Passing enum or object through an intent (the best solution)

I have an activity that when started needs access to two different ArrayLists. Both Lists are different Objects I have created myself. ...
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What does “default” mean after a class' function declaration?

I've seen default used next to function declarations in a class. What does it do? 5 Answers ...
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Https Connection Android

I am doing a https post and I'm getting an exception of ssl exception Not trusted server certificate. If i do normal http it is working perfectly fine. Do I have to accept the server certificate somehow? ...
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how to convert milliseconds to date format in android?

I have milliseconds. I need it to be converted to date format of 15 Answers 15 ...
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How to set the id attribute of a HTML element dynamically with angularjs (1.x)?

Provided an HTML element of type div , how to set the value of its id attribute, which is the concatenation of a scope variable and a string ? ...