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How to enable/disable bluetooth programmatically in android
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Android BluetoothAdapter docs say it has been available since API Level 5. API Level 5 is Android 2.0.
You can try using a backport of the Bluetooth API (have not tried it personally): http://code.google.com/p/backport-android-bluetooth/
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Has Facebook sharer.php changed to no longer accept detailed parameters?
... From Facebook: The Feed Dialog for web has been deprecated in API Version 2.0. On web, developers are encouraged to use the more modern Share Dialog, which can perform all of the same functions as these older dialogs, but can additionally publish custom Open Graph stories without requi...
How to check edittext's text is email address or not?
...checks that field contains a valid domain name ( always passes the test in API Level < 8 )
ipAddress: checks that the field contains a valid ip address
webUrl: checks that the field contains a valid url ( always passes the test in API Level < 8 )
nocheck: It does not check anything. (Default)
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JavaScript and Threads
...change in future.
Here's the relevant documentation for Gears: WorkerPool API
WHATWG has a Draft Recommendation for worker threads: Web Workers
And there's also Mozilla’s DOM Worker Threads
Update: June 2009, current state of browser support for JavaScript threads
Firefox 3.5 has web worker...
How to read a local text file?
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After the introduction of fetch api in javascript, reading file contents could not be simpler.
reading a text file
fetch('file.txt')
.then(response => response.text())
.then(text => console.log(text))
// outputs the content of the text file
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Java FileReader encoding issue
...tly. Unfortunately, FileReader does not allow this (major oversight in the API). Instead, you have to use new InputStreamReader(new FileInputStream(filePath), encoding) and ideally get the encoding from metadata about the file.
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How can I assign an ID to a view programmatically?
...ew.
Query these child views using placeholder.findViewById(convenientInt);
API 17 introduced View.generateViewId() which allows you to generate a unique ID.
If you choose to keep references to your views around, be sure to instantiate them with getApplicationContext() and be sure to set each refe...
Getting an empty JQuery object
...of jQuery, this would return a set containing the document node.
Source: api.jquery.com
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What is the difference between localStorage, sessionStorage, session and cookies?
...age and sessionStorage
localStorage and sessionStorage are relatively new APIs (meaning, not all legacy browsers will support them) and are near identical (both in APIs and capabilities) with the sole exception of persistence. sessionStorage (as the name suggests) is only available for the duration...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...es, each one with its own application :
- Basic “Hello World”
- REST API
- JSON Serialization/Deserialization
- Photo Loading
- SQL Database Insert and Get All
Each test is repeted several times, the graphs show the average results.
Hello World
Rest API
Set of tests aimed at measuri...