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Jul 11, 2020
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Nazmul Idris
Introduction to Kotlin Annotation Processing on Android and how to create a static index of generated classes and
interfaces (without using reflection or classgraphs)
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May 11, 2019
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Nazmul Idris
This tutorial showcases the differences between using Java and Kotlin in
Android development
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Oct 21, 2018
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Nazmul Idris
This tutorial is and in-depth exploration of Dagger 2 using Java and Android
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Jul 21, 2018
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Nadia Idris
In this article, I am going to do a deep dive into Android screen density and
provide some guidance on how to design for such a huge diversity of screen densities.
Having a firm grasp of this is critical in being able to create wireframes and designs
in Sketch that can be implemented on actual devices (phones, tablets, laptops, TVs,
wearables).
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Dec 7, 2017
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Nazmul Idris
The difficulties of dealing with things like configuration changes when
rotating a screen, and sharing app state data between fragments and activities
are a thing of the past. Architecture Components puts the magic back into Android
development! 🎩✨
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Dec 2, 2017
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Nazmul Idris
As of Android API level 27, there are too many ways to load custom fonts
in Android apps. This article will show you how to use downloadable fonts (from
Google Fonts) using the latest support library. 🖋
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Jul 29, 2017
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Nazmul Idris
This article is an introduction on how to use Android MediaPlayer in your
apps to playback audio 🎵
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Jul 9, 2017
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Nazmul Idris
This article is a deep dive into Android Services. Learn all about started
services, bound services, and bound and started services. With source code examples
and a sample app.
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Apr 26, 2017
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Nazmul Idris
This tutorial is a deep dive of Flexbox layout and FlatList. It will show
you how to take a wireframe and compose React Native components out of it. The code
for this tutorial is on GitHub.
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Apr 14, 2017
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Nazmul Idris
This tutorial is a deep dive of React Navigation, which is the way to do
in app navigation. It also goes into the best practices for styling your app and
how to collaborate with designers for styling. The code for this tutorial is in
GitHub.
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Mar 31, 2017
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Nazmul Idris
This tutorial will show you how to get started quickly with React Native
for mobile app development on Android and iOS. It focuses on Flexbox layouts, Navigation,
and cross platform considerations. The code for this tutorials is in GitHub.
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Jan 27, 2017
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Nazmul Idris
Redux and React are things that are normally associated with web development.
Redux is a beautiful design pattern that can help with any application, even native
ones! I used Firebase in order to do cross platform data synchronization across
web and mobile clients. I also used Firebase auth and Material Design to craft a
real-world app. The code for this tutorial is in GitHub.
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Oct 20, 2010
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Nazmul Idris
The best way to handle GPS is to use the “network” or “passive” provider
first, and then fallback on “gps”, and depending on the task, switch between providers.
This covers all cases, and provides a lowest common denominator service (in the
worst case) and great service (in the best case).
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Oct 12, 2010
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Nazmul Idris
Android applications run in a native Linux process, in the underlying Linux
OS. This process houses activities (screens), widgets, and services (non visual
long running application parts). When working with Android apps, it is important
to remember to keep long running code running in threads that are not tied to the
main thread or event dispatch thread, in order to get an “application not responding”
error. A common mistake that is made is long running tasks are performed in this
EDT/main thread, and this leads to lots of application failures.
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Mar 6, 2009
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Nazmul Idris
I've been working with various object encoding schemes to get information
transferred over the network between services and mobile apps running on Android
and BlackBerry. On Android, I figured I would try using Java object serialization,
and that works some of the time, and not for anything complex. I wish the object
serialization and deserialization mechanism in GWT would be ported over to all these
mobile environments, but I digress. This tutorial outlines the use of JSON for this
purpose.
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Aug 5, 2008
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Nazmul Idris
This tutorial is an introduction to the built in animation frameworks that
are part of the Android UI library. Without writing any animation/drawing code,
you can do 2 types of animations - layout transitions that affect ViewGroups, and
sequences inside a View. You can also do frame by frame animation, but this tutorial
will not cover that. The basics covered here affect layout transitions, and animation
of a View itself, using tweening animation, which includes each of the following
effects (or any combination) - Alpha, Rotate, Scale, and Translate.
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Aug 4, 2008
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Nazmul Idris
This tutorial will show you how to use ListView to display selectable lists
of non trivial data, using complex cell renderers. The ListView is a selectable
list. You can attach a variety of data models to it and load different
display layouts (cell renderers). You can create your own model and cell renderer.
This model-view combo is called an Adapter. In this tutorial, I will
show you how to extend create your own Adapter from scratch, and create
your own cell renderers from scratch as well.
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Aug 4, 2008
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Nazmul Idris
This tutorial shows you how to use the LinearLayout container (using Java
code, not XML markup), which is the simplest layout mechanism available on Android.
If you're familiar with Swing's BoxLayout then you will have a good idea of what
this container has to offer. Linear layouts are really simple... you can add
components horizontally or vertically to a ‘bag’ or ‘box’.
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Jul 31, 2008
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Nazmul Idris
This tutorial will show you how to use Android's theme-ing capabilities.
You can set background color, image, etc. on widgets, dialogs, and activities.
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Jul 29, 2008
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Nazmul Idris
This tutorial will show you how to use the TableLayout container, which is
like an HTML table. The UI layout code is done in Java, not XML. A class
(LayoutUtils) is provided to make it easier to attach layout params to View objects.
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Jul 16, 2008
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Nazmul Idris
This tutorial will show you how to create options menu (hooks into the MENU
button) and context menu (press and hold a component).
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Jul 16, 2008
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Nazmul Idris
This tutorial will show you how to instantiate or inflate a View from XML;
this is useful for components that don't provide a Java API to tweak with certain
style attributes. The Button class is used as an example; you can only get certain
styles to show up via XML that aren't available via the Java API.
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Jul 14, 2008
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Nazmul Idris
This tutorial will show you how to create a sub-Activity from a calling-Activity,
and process the results produced by the sub-Activity, if you want to do so. Also,
the various ways of launching a sub-Activity are covered, along with the Android
Activity history stack. A subclass of Activity is also provided that makes
it trivial to launch sub-Activities and respond to results from them.
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Jun 4, 2008
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Nazmul Idris
I've written 3 tutorials to show you how to create a service enabled Android
application that performs all of it's network I/O in a background thread (not the
UI thread). These tutorials are split into three parts. This tutorial shows you
how to use background threads to perform long running network IO operations, so
that the main UI thread is not locked up.
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Jun 4, 2008
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Nazmul Idris
I've written 3 tutorials to show you how to create a service enabled Android
application that performs all of it's network I/O in a background thread (not the
UI thread). This tutorial shows you how to build a simple UI without using XML,
by writing Java code to layout the UI.
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Jun 4, 2008
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Nazmul Idris
I've written 3 tutorials to show you how to create a service enabled Android
application that performs all of it's network I/O in a background thread (not the
UI thread). These tutorials are split into three parts. This one shows you how to
use Apache HTTP Client to connect to services over HTTP or HTTPS and
exchange serialized Java objects with services.
