Monthly Archives: April 2013

Android Development Tutorial

Android Development Tutorial 3

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Android User InterfaceIn this part of my Android Development Tutorial, I will build an Android user interface.

I cover how to do numerous things: How to use the Android Visual Layout Editor, How to edit the GUI layout by editing the XML, How to use TextView, EditText and the SeekBar, How to catch events, How to save the apps state with onSaveInstanceState(), How to get values from components and how to change the values. The video and code below will teach you all you need to start making apps. Continue reading Android Development Tutorial 3 →

Android Development Tutorial

Android Development Tutorial 2

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Android Development Tutorial 2In this tutorial, I decided to cover all of the topics I would need, so that in every tutorial that follows I can just make apps. Don’t try to memorize everything! Here I’m just covering a bunch of things you need to be familiar with.

We’ll cover the lifecycle of an Android activity completely. We’ll then look at how to make an app support many languages. We’ll look at how to grab string resources and how to pull them into java and xml files. Finally, we’ll look at the AndroidManifest.xml file in detail. Continue reading Android Development Tutorial 2 →

Android Development Tutorial

Android Development Tutorial

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Android Development TutorialIn a previous tutorial, I showed you how to Install the Android Development Tools. In this first part of my Android Development Tutorial I’m going to describe almost every file and folder used to develop an Android app.

I’ll walk through every single file and explain how it is used. I’ll explain the whole file system. We’ll also make an app and as I create it, I’ll explain every single step and what everything means. I have never seen anyone try to teach this much in one video. I hope you enjoy it. All of the commented code is available below. Continue reading Android Development Tutorial →

Android Development Tutorial

Solving Android SDK Problems

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Solving Android SDK ProblemsIn my last tutorial, I showed you how to install the Android development tools. In this tutorial, I’ll show you how to solve many of the Android SDK Problems you have recently sent me.

We’ll look at: How to speed up the emulator. Solve the problem in which the Android SDK Manager could not find packages. Solve the Android SDK parse error problems. Solve the issue in which the emulator doesn’t execute your program. If you have any other problems leave a comment below and I’ll solve them. Continue reading Solving Android SDK Problems →

Java Video Tutorial

Install Android Development Tools

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Install Android Development ToolsWelcome to my tutorial on how to Install Android Development Tools. I received many requests on how to do this and it is a great topic to cover right before I start my Android Development Tutorial.

I’ll cover how to install Googles ADT plugin, all of the common errors people get and take you through running your first app. Many important things need to be pointed out like the fact that Googles emulators are terribly slow. If you haven’t installed Eclipse yet, definitely checkout my tutorial Install Eclipse for Java first. Continue reading Install Android Development Tools →

Java Video Tutorial

Java Algorithm Video Tutorial

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Java Algorithm Video TutorialWelcome to my Java algorithm video tutorial. Here I provide 18 videos on not only Java algorithms, but I also cover Data Structures in depth.

We cover numerous search and sorting algorithms. We also look at stacks, queues, lists, recursion, Big O Notation, hash tables, trees, heaps and a ton more.

A playlist filled with all the videos is below, along with links to all of the code used. Continue reading Java Algorithm Video Tutorial →

Java Video Tutorial

Java Heap Tutorial

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Java Heap TutorialWelcome to my Java Heap Tutorial. In previous tutorials, I covered how to print out trees in Java. You may want to look at that before continuing here, but it isn’t required.

A Heap is kind of like a tree, but it is normally implemented as an array. There are 2 main rules for using a heap. 1. Every row is complete except for last row. 2. Parent keys are bigger then children. I will cover how to insert and remove items. I’ll show how an array is heaped. I’ll also cover how the Heap Sort works. Everything is covered in the video and code below. Continue reading Java Heap Tutorial →

Java Video Tutorial

Solving Programming Problems 2

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Solving Programming ProblemsIn my previous tutorial Solving Programming Problems, I walked you threw the process of solving a generic programming problem. We made a method that printed out a tree structure in the console.

In this tutorial, I’ll walk through the process of finding bugs in the code and talk about how we can fix those bugs. I think this topic may be the hardest to teach. I hope the video and the code that follows can help you better grasp how to solve most any programming problem. Continue reading Solving Programming Problems 2 →

Java Video Tutorial

Solving Programming Problems

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Solving Programming ProblemsTo finish off my Java Algorithm tutorial, I thought it would be interesting to cover solving programming problems in general. So, in this tutorial I’ll answer the question I’ve been getting, which is how to print a tree data structure.

On our journey to better understand how to solve problems I will first solve the basic problem. Then in the next part of the tutorial I will perfect printing any type of tree. The code below will better explain the process of solving this problem. Continue reading Solving Programming Problems →