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Show hide fragment in android

I am developing application which contains 2 fragments and i want to show hide according to my need. Following code has simple example of my problem. This simple Fragmentactivity contains 1 button and one listfragment. ...
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What scalability problems have you encountered using a NoSQL data store? [closed]

... In business terms: first option was not feasible. Second option means our app works. Technology details: running on MySQL for both SQL and NoSQL! Sticking with MySQL for good transaction support, performance, and proven track record for not corrupting data, scaling fairly well, support for cluste...
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Find a value anywhere in a database

...h would leave those image columns out of my search causing the error to disappear... AND DATA_TYPE NOT IN ('image') – Taylor Brown Mar 6 '15 at 16:36 1 ...
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What Are Some Good .NET Profilers?

... leak, it does identify opportunities to fix this problem and improve your application performance as a result of faster garbage collection. More detailed filtering options (several columns can be filtered independently). Presents info on total objects created (including those garbage collected). AN...
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Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?

...nt expression: int i = 1024 * 1024 * 1024 * 1024; becomes: 0: iconst_0 1: istore_1 Notice that the result (0) is simply loaded and stored, and no multiplication takes place. From JLS §3.10.1 (thanks to @ChrisK for bringing it up in the comments): It is a compile-time ...
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How does facebook, gmail send the real time notification?

...n a given interval (perhaps every few seconds), to check if something has happened. However, this can be pretty network intensive, and you often make pointless requests, because nothing has happened. The way Facebook does it is using the comet approach, rather than polling on an interval, as soon a...
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How to get Bitmap from an Uri?

...ActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { Uri imageUri = data.getData(); Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri); } } If you need to load very large images, the following code will load i...
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Can you attach Amazon EBS to multiple instances?

...ble to get an EBS volume attached to more than one instance, it would be a _REALLY_BAD_IDEA_. To quote Kekoa, "this is like using a hard drive in two computers at once" Why is this a bad idea? ... The reason you can't attach a volume to more than one instance is that EBS provides a "block storage...
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How to prevent a jQuery Ajax request from caching in Internet Explorer?

... A word of caution: this adds "?_=somenumber" to your URL. Make sure your back end can ignore the "_" in the URL's query parameters. – user3458 Sep 26 '13 at 19:34 ...
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Why was the switch statement designed to need a break?

...ors that can have either one or two operands: switch (operator->num_of_operands) { case 2: process_operand( operator->operand_2); /* FALLTHRU */ case 1: process_operand( operator->operand_1); break; } Case fall through is so widely recognized as a def...