Android Java to Get JSON Data from Server via PHP

The following Android Java codes are based on Android Studio 2.3. In order for Android to obtain information from a server such as the login password verification, the easiest way is to connect to a web server via PHP. Android then establishes a connection to the server through a URL or a link to a PHP script. The following shows the PHP portion of the codes. I named this file testJSON.php: <?php  error_reporting(0);  $all...

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Javascript to Limit HTML Width for Mobile Devices of Any Orientation

The viewport parameter in the HTML Meta Tag is used to limit the screen width. Another thing to pay attention for these codes is the neccessity to differentiate between tablets and phones. Phones tend to have less resolution whereas tablets can have resolutions comparable to that of PC or Mac. I use a simple criteria to differentiate the two by checking the screen width whether it is wider than 700 pixels. If so, tablets' width will be forced to limit to only 700 pixels. For non-tablets,...

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