Difference between shared and portable app in Xamarin
Read about this from my new programming website http://codespower.com/2017/05/25/difference-between-shared-and-portable-app-in-xamarin/
Category Archives: ANDROID
Simple Image Scaling Demo in Android
This article shows how you can do simple image scaling in Android. Here I have a simple class that Scales the image. The Utility class Layout The layout which shows the image for scaling. Set the above xml as layout for the Activity. Activity Please leave your comments at the end of the post.
Using Popup Window in Android
The popup windows is a floating container that appears on top of the current activity. Layout for PopUp Below is the layout for the popup window. Layout for Activity Create another layout for the activity activity_main.xml Implementation The activity which implements the popup.
Client-Server Programming in Android. Send Message to the Client and Back.
Hi all, Today I will show you how you can implement Client-Server architecture in an Android environment. Watch Video Demo Below is the demo of the app we are going to build. Watch Video Tutorial I wil be explaining the code in the below video tutorial. If you have any comments,… Read More »
Using Shelvesets in TFS
Using Shelvesets in TFS we can set aside pending changes in Visual Studio 2015. We can set aside a batch of pending changes from our current work space temporarily using the feature Shelvesets . We can later restore these changes into our work space or can into work space of another user. Read more from… Read More »
Android Testing Tools
Automated testing processes are now a common thing in every project. Lets see some of them MonkeyRunner You can checkout more from here Advantages Low Level tool Does not have to do coding to automate tests Written in Python It can run test cases on rela devices connected to a PC/Emulators. APIs available for controlling… Read More »
Upload bigger files from Android to server – Example
Below is the function which uploads bigger files from Android device to Server.
Find subscriber id, sim serial number, phone network type etc in Android
The android.telephony.TelephonyManager class provides information about the telephony services such as subscriber id, sim serial number, phone network type etc.You can also determine the phone state etc. Permission Before Starting, make sure you add the permission in the Android Manifest. Android Source Code Below code gets the information from the Android Telephony Manager and displays… Read More »
Using SmsManager to send SMS
There are two ways to send SMS in Android Using SmsManager Using Built in Intent 1. SmsManager The SmsManager manages SMS operations such as sending data to the given mobile device. You can create this object by calling the static method SmsManager.getDefault() as follows: Initialize Sending Message Once you have SmsManager object, you can use… Read More »
Check if the Device is Charging in Android and the Power Source.
Your application peformance should be upto the mark. But it should perform differently not on the front end , but on the back end when it the device is connected to a power source or charging. Charging could be of from USB and from wire cable. When your device is charging itself , it is… Read More »
Using Different Media Libraries in Android
Android provides two main API’s for playing sounds. SoundPool MediaPlayer SoundPool SoundPool can be used for small audio clips. It can repeat sounds and play several sounds simultaneously. The sound files played with SoundPool should not exceed 1 MB. SoundPool does load the file asynchronously. As of Android API8 it is possible to check if… Read More »
Event Handling using DataBinding in Android.
Using data binding, you can also handle events right from the layout xml using either Method references, or Listener bindings. For this we can create a seperate Class named “MyHandler”. Event Handler Class MyHandler.java Like my previous examples you have to initialize the listener in the Activity. Layout Now the layout that has a button… Read More »
DataBinding in Android using Observable Collections
As I shown in the previous post where we used BaseObservable and ObservableField to update UI when binding object is changed, this post will show you another simple way to achieve this. Do Check my previous posts for better understanding of DataBinding and methods used in DataBinding. http://www.coderzheaven.com/2017/01/15/simple-databinding-in-android-example/ http://www.coderzheaven.com/2017/01/20/data-binding-in-android-using-observables/ http://www.coderzheaven.com/2017/01/25/data-binding-in-android-using-observablefield-to-update-ui-automatically/ Here is another way to… Read More »
Data Binding in Android – Using ObservableField to Update UI automatically
As I shown in the previous post where we used BaseObservable to update UI when binding object is changed, this post will show you another simple way to achieve this. Do Check my previous posts for better understanding of DataBinding and methods used in DataBinding. http://www.coderzheaven.com/2017/01/15/simple-databinding-in-android-example/ http://www.coderzheaven.com/2017/01/20/data-binding-in-android-using-observables/ Here is another way to do it. In… Read More »
Data Binding in Android – Using Observables (BaseObservable) to Update UI automatically
In the last example, you may have got an idea of what DataBinding is. If not please check my tutorial here… Simple DataBinding in Android Example. Updating Objects using Observables. In the last tutorial you may have noticed, if you update the object which is data binded, the change is not reflected in the UI… Read More »
Using GSON in Android – Simple Demo
GSON is open source Java library developed by Google. It is an API for converting a Java object to json representation and viceversa. Uses Converts any Java object i.e new object or any existing/legacy object, to JSON and vice-versa. Finest support for generic objects Simple, convenient methods for conversions No need of any annotation for… Read More »
Android Navigation Drawer Simple Example
Navigation Drawer helps developers for creating easy menus in an application. Lets start to see how it works. We will start by creating a new project with a navigation drawer activity. Adding Navigation Drawer Activity If you want to add Navigation Drawer Activity to your existing project you can simply add it by going to… Read More »
Simple DataBinding in Android Example.
This is a latest technique in Android where the UI is updated when the data bind to it changes, which is called databinding. DataBinding DataBinding has its own expression language for layout files. It corresponds to Java expressions and has quite impressive capabilities. Below you can see the list of all available operators: mathematical operators;… Read More »
How to call Android function from JavaScript?
Check the Video below to see what we are going to do… If the web page you plan to load in your WebView use JavaScript, you must enable JavaScript for your WebView. Once JavaScript is enabled, you can also create interfaces between your application code and your JavaScript code. Enabling JavaScript JavaScript is disabled in… Read More »
Android Material Design – Scroll and Collapsable App Bar
Material design has changed the way user interact with apps. Below is one such UI design which we all will love. We will create a collapsable AppBar which scrolls from center of the screen to the AppBar. Check out the video below to see how it looks. All the magic happens in the XML layout.… Read More »
Loading webpages using JavaScript in Android WebView / Executing JavaScript functions from Android
I think everyone has checked my previous post on how to improve Android WebView performance. If not, check it here Improve Android WebView Perfomance Now we will see how we can load a webpage textfields with our custom values in Android WebView. For this I am using a sample HTML file which is stored in… Read More »
Understanding Shared Element Transition in Android.
Hi all, In Today’s tutorial we will see how we can do a shared element transition between activities in android. What we will do. We have two activities First activity has a TextView and two images. Second activity with two images. We will animation between corresponding images. Check out the video below to see what… Read More »
Material Design Circular Reveal Animation Demo in Android.
Material Design has changed the way users interact with the apps. Reveal is a new animation introduced in Android L that animates the view’s clipping boundaries. Reveal animations provide users visual continuity when you show or hide a group of UI elements. This animation is often times used in conjunction with a floating action button.… Read More »
Important Steps to improve WebView Performance in Android
A Quick note on WebView A View that displays web pages. This class is the basis upon which you can roll your own web browser or simply display some online content within your Activity. It uses the WebKit rendering engine to display web pages and includes methods to navigate forward and backward through a history,… Read More »
Simple Activity Scale Transitions on Android
Below simple code explains how you can do a simple activity transitions in Android