Category Archives: ANDROID

Using Loaders in Android Using SimpleCursorAdapter in Android.

Introduced in Android 3.0, loaders make it easy to asynchronously load data in an activity or fragment. Loaders have these characteristics: They are available to every Activity and Fragment. They provide asynchronous loading of data. They monitor the source of their data and deliver new results when the content changes. They automatically reconnect to the… Read More »

Filtering a RecyclerView with Custom Objects.

This demo will show you how you can filter a RecyclerView with your Custom Objects. If you are new to RecyclerView, then please go through this post to get a glance. Check out the Demo Video ( 7 seconds) Here I am using a CustomClass called “ListItem” which has three members. ListItem.java MainActivity.java We have… Read More »

Volley Demo in Android

Volley is an HTTP library that makes networking for Android apps easier and most importantly, faster. Volley is available through the open AOSP repository. Volley offers the following benefits: Automatic scheduling of network requests. Multiple concurrent network connections. Transparent disk and memory response caching with standard HTTP cache coherence. Support for request prioritization. Cancellation request… Read More »

Best Coding Practices in Android – Part 2

You can read the First Article about Best Coding Practices in Android here. Re-Use Elements and Layouts Use for reusing layouts. You can read about this from here. Use Different resources for different density Screens. Properly organize your images in mdpi, hdpi,xhdpi etc folders for corresponding screens. This helps to prevent blurry images. Read more… Read More »

RecyclerView Simple Example in Android.

The RecyclerView widget is a more advanced and flexible version of ListView. This widget is a container for displaying large data sets that can be scrolled very efficiently by maintaining a limited number of views. Use the RecyclerView widget when you have data collections whose elements change at runtime based on user action or network… Read More »

Custom Transitions in Android M using RippleDrawables

Ripple Drawables. Touch feedback in material design provides an instantaneous visual confirmation at the point of contact when users interact with UI elements. The default touch feedback animations for buttons use the new RippleDrawable class, which transitions between different states with a ripple effect. We can either apply RippleDrawable in XML or using Drawable XML… Read More »

Bluetooth Demo in Android – Listing paired Devies, Find other Online BT devices, Connect to a BT Device, Communicate between connected BT Devices ( Chat ).

In this Demo we will see Check compatibility of the device. Turn On/Off Bluetooth, Making it discoverable List Paired Devies. Check for Online Bluetooth Devices. Connect with a Device. Communicate between Connected Bluetooth Devices. Disconnect from Device. You can download the complete Android Studio Source code at the end of the post. Before We start… Read More »

Local broadcast events with LocalBroadcastManager in Android

LocalBroadcastManager is Helper to register for and send broadcasts of Intents to local objects within your process. This is has a number of advantages over sending global broadcasts with sendBroadcast(Intent): You know that the data you are broadcasting won’t leave your app, so don’t need to worry about leaking private data. It is not possible… Read More »

Swipe Refresh ListView using ListFragment and SwipeRefreshListFragment in Android

This demo shows How to use Swipe to Refresh in ListViews and ListViewFragments. You can download the complete Android Studio Source Code at the end of the Post. 1. Using ListFragment 2. Using SwipeRefreshListFragment You can download the complete Android Studio Source Code from here. You can send your valuable comments @coderzheaven@gmail.com.

SnackBar and Floating Button Demo in Android

Snackbar is a UI element used for user feedback, just like a Toast except they provide action to interact with. Snackbar will be displayed at the bottom of the screen and can be swiped off in order to dismiss them. Floating Button sits on the top of your layout and provides a way for a… Read More »

Adding Notifications, Reading Notifications, Getting number of notifications in Android M.

This demo will show how to 1. Create and add a new Notification, 2. How many notifications are active in the current Application? 3. Delegate method for Notification Deletion. For Adding a Notification we can use the following snippet. For reading the number of currently Active notifications we can use To know when a Notification… Read More »

Uploading Image to Server – Android Eclipse Version.

Hi all, In today’s tutorial I will show you how to send an image to server using POST method in ANDROID. If you are working in Android studio, then checkout the article here. Uploading an image to server is a basic requirement in many of our application. Sending data to server which is using a… Read More »

MapKit Demo Swift – Annotation, Custom Annotation, Custom Annotation with Button, Search, Showing Directions – Apple Maps iOS

Hi all, In this Demo I will show How to implement Apple ‘s MapKit on iOS. This demo will show following this. 1. Show Annotation in Maps. 2. Show Custom Annotation in Maps. 3. Show Custom Annotation with Custom Button in Maps. 4. Pin Point to location from Search. 5. Showing Route/Direction between two location… Read More »

CardView Demo in Android L

Here is a simple CardView Demo in Android. This demo shows how you can apply Corner radius and Shadow in Android L. Here is the Activity. This is the Fragment that adds the CardView. The Layout for the Activity. Fragment for placing CardView. You can download the complete Android Studio Source Code from here..  

Custom Transitions in ANDROID.

Here we are going to create custom transitions for a fragment. We will create transitions using Java classes by extending the Transition Class in Android. ChangeColor.java is the java class that extends transition. ChangeColor.java CustomTransitionFragment is the Fragment to which we are going to apply the transition. The MainActivity that adds the fragment. Download the… Read More »

Display Route between two places in Google Maps V2

Hi all… Yet another post on Google Maps.. In this demo I will show you how to show a route between two places in Google Maps V2.     Hope you have gone through my previous posts before. If not please check here. You need to set up Maps Correctly for it to load. Lets… Read More »

Create Custom Notification in Android.

This demo explains how you can create a Custom Notification in Android old and New versions. The notification appears expanded in Versions > 16. Let’s jump into the code… Below is the MainActivity that creates the notification. You can download the complete Android Studio Source Code from here.. Send your comments to coderzheaven@gmail.com

ActionBarActivity deprecated..

ActionBarActivity is now deprecated.. Check out what Google says about using AppCombat. The AppCompat Support Library started with humble, but important beginnings: a single consistent Action Bar for all API 7 and higher devices. In revision 21, it took on new responsibility: bringing material color palette, widget tinting, Toolbar support, and more to all API… Read More »

Starting with Material Design in Android – Volume 1

1. To create apps with material design: Review the material design specification. Apply the material theme to your app. Create your layouts following material design guidelines. Specify the elevation of your views to cast shadows. Use system widgets for lists and cards. Customize the animations in your app. 2. Apply the Material Theme To apply… Read More »