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How to check edittext's text is email address or not?

... the text of edittext is email address or not without using javascript and regular expression? Here I used inputtype="textEmailAddress" this is working but no error message is display. ...
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Why does sizeof(x++) not increment x?

... From the C99 Standard (the emphasis is mine) 6.5.3.4/2 The sizeof operator yields the size (in bytes) of its operand, which may be an expression or the parenthesized name of a type. The size is determined from the type of the opera...
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Can JavaScript connect with MySQL?

... there is no extra latency from passing through a MySQL Server and need to convert from JavaScript code//objects into SQL operations. If for some reason, you’d prefer it to pass through a MySQL Server (for example if you’re storing tables in InnoDB) then that can be configured. JSDB offers a ...
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How can I parse a local JSON file from assets folder into a ListView?

...ently developing a physics app that is supposed to show a list of formulas and even solve some of them (the only problem is the ListView ) ...
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Favicon dimensions? [duplicate]

...upport possible. You upload an image and this site gives you the code, the converted images and a browserconfig file. We could simply upload a favicon manually to our website of 16x16 and it will probably show up in almost any browser. But when you will mark it as one of your favorites on your s...
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Determine if a String is an Integer in Java [duplicate]

... The most naive way would be to iterate over the String and make sure all the elements are valid digits for the given radix. This is about as efficient as it could possibly get, since you must look at each element at least once. I suppose we could micro-optimize it based on the ra...
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Checking if an Android application is running in the background

... completely reliable: The right solution (credits go to Dan, CommonsWare and NeTeInStEiN) Track visibility of your application by yourself using Activity.onPause, Activity.onResume methods. Store "visibility" status in some other class. Good choices are your own implementation of the Application o...
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Foreach loop, determine which is the last iteration of the loop

I have a foreach loop and need to execute some logic when the last item is chosen from the List , e.g.: 26 Answers ...
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Custom toast on Android: a simple example

I'm new to Android programming. What is a simple example showing a custom toast notification on Android? 17 Answers ...
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Accessing constructor of an anonymous class

Lets say I have a concrete class Class1 and I am creating an anonymous class out of it. 10 Answers ...