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HTML - Download image through AJAX and display it
AJAX was initially designed to be used with text data (JSON/HTML/XML) and that is why this requirement of downloading images using AJAX were never fulfilled.
But with HTML5, XHR2 has been introduced which allows us to get ArrayBuffer in ajax response and this is something which can be used to download image.
There are two approaches that could be taken.
Download the image, create a blob object…
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HTML, jQUERY find actual size of image in tag
Basically using DOM functions, if we try and get the size of , we always get the dimensions of DOM element, not the actual image.
To be able to get actual size of image, we will have to reload it in a new without any size restriction. If we do that, this new will take dimensions of actual image, and using simple DOM methods we can get the actual size of image.
Sample HTML
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Android Screen & Aspect Ratios
Most of the time one need to understand the target device’s aspect ratio for designing the UX, Following is the list of aspect ratios known to be available on Android devices.
4:3
3:2
16:10
5:3
16:9
Here is a visual reference to same.
courtesy: Stackowerflow
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JavaScript faster for loops
Assuming you want to traverse through an array using for-loop
var array = [...........]
Slow Way
array.forEach(function(x){ // TODO: Do Something });
Fast Way
for(var i = 0; i < array.length; i++){ // TODO: Do Something }
Faster Way
for(var i = 0, len = array.length; i < len; i++){ // TODO: Do Something }
Reference: https://blogs.oracle.com/greimer/entry/best_way_to_code_a
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GIT find out the url of current repository.
If referential integrity has been broken:
git config --get remote.origin.url
If referential integrity is intact:
git remote show origin
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Get Apache & PHP working on Mac OS X 10.10 Yosemite
Get Apache & PHP working on Mac OS X 10.10 Yosemite
Three saviour commands
Start Apache sudo apachectl start
Stop Apache sudo apachectl stop
Restart Apache sudo apachectl restart
Enable PHP Open terminal and edit /etc/apache2/httpd.conf
sudo vi /etc/apache2/httpd.conf
Go to line # LoadModule php5_module libexec/apache2/libphp5.so and remove # and save the file and restart the server.
Document Root Document Root is the folder where PHP files are…
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Resizing webview to match the content size
Resizing webview to match the content size
There has been lots of discussion around methods of resizing the webview to fit the size of its content.
The actual issue can be seen when we are using webview inside a scrollview. In case we wish to show something on top of webview and allow the whole page to scroll, if web view content goes beyond screen size.
If at first we load huge data in webview, it expands itself to fit the whole content,…
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Different screen orientation on different screen size.
There are many tutorials around on web which tells how to support different screen sizes in android. But there are many tiny little real problems which comes in every day life of android developer while supporting different screen size.
Well I understand…
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GIF Animation in Android
public class GifSample extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(new SampleView(this)); } private static class…
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Credit/Debit card validation using LUHN (Mod10) algorithm
/** * @author anshu * */ public class Validator { public static final byte VISA = 0; public static final byte MASTERCARD = 1; public static final byte AMEX = 2; public static final byte DINERS_CLUB = 3; public static final byte CARTE_BLANCHE = 4; public…
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Android 4.1 Jelly Bean Notification Tutorial
Notifications have always been very interesting feature of android. Developers can use them to…
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Android 4.1 Jelly Bean View Animation Tutorial
Android 4.1 Jelly Beans released last week and there are lots of exciting new features.. I will try and give an over view of all the features.
To start with let us have a look at new Animations APIs introduced in Android Honeycomb and enhanced in Jelly…
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Android - Simple JSON parsing using jackson APIs
Here is a sample application which demonstrates usage of open source Jackson JSON Processor.
This sample application performs a very simple HTTP GET Request to get JSON object from http://www.kaverisoft.com/careers/assignments/android/a1.phpand then uses…
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Android 4.1 Jelly Bean Notification Tutorial Part II
In Android 4.1 Jelly Bean Notification Tutorialwe saw how simple notifications can be build on…
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Android JDBC driver for Microsoft SQL Server and Sybase
Recently i shared a post about Configuring and accessing MySQL jdbc driver on android application.
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Android 3.0 Honeycomb Drag and Drop tutorial
Since Android 3.0 Honeycomb we have drag and drop framework which allows us to move data from one view to another in current layout by simple graphical drag and drop gesture.
The Drag and Drop Framework has ClipData, DragEvent & DragShadowBuilder classes…
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