android10

1. Calling System Settings from Android App - GPS Example

Introduction SDK Version: M3 This tutorial shows how to redirect the user to a system settings screen asking to modify some settings the application depends on. We will make a specific example with GPS: The application can be used only if GPS is...

Wednesday, 30 June 2010 | 5028 hits | Print |  E-mail | Report | Read more

2. How to know if is the first run of your application

Introduction SDK Version: M3 Ever wanted to have a different flow of actions on the second or third run of your app? I had that many times, in almost every project that I haver worked on. So here is a little snippet, that you can use to store,...

Monday, 05 July 2010 | 1992 hits | Print |  E-mail | Report | Read more

3. Eclipse and Android SDK bugs and common mistakes

Introduction If you have already used Eclipse with Android SDK, you probably have some experience with known and unknown bugs. I'd like to show you some of these, and help you how to solve them. Common bus and mistakes First of all, if you...

Monday, 26 July 2010 | 2118 hits | Print |  E-mail | Report | Read more

4. How to avoid OutOfMemory Error / OOM

The Ugly Truth Revealed SDK Version: M3 ERROR/dalvikvm-heap(4204): 691456-byte external allocation too large for this process. 01-25 22:13:18.694: ERROR/(4204): VM won't let us allocate 691456 bytes 01-25 22:13:18.694 If you have ever got the...

Saturday, 07 August 2010 | 1792 hits | Print |  E-mail | Report | Read more

5. WebView with zoom controls, image from SDCARD

Introduction SDK Version: M3 In this article, I am going to show you how to build a WebView with zoom controls. The Problem: When I'm trying to load an image (tried both gif and png) from my assets directory, into a webview. In my assets...

Sunday, 08 August 2010 | 2838 hits | Print |  E-mail | Report | Read more

6. Optimize your layouts

Introduction Writing user interface layouts for Android applications is easy, but it can sometimes be difficult to optimize them. Most often, heavy modifications made to existing XML layouts, like shuffling views around or changing the type of a...

Tuesday, 10 August 2010 | 2018 hits | Print |  E-mail | Report | Read more

7. Enabling Users to Send Email From Your Android Applications

Introduction This quick tip shows you how to launch the built-in Mail application, supply it with data, and allow the user to send an email message. You will achieve this by creating and configuring the appropriate Intent within an application’s...

Thursday, 12 August 2010 | 4571 hits | Print |  E-mail | Report | Read more

8. Quick Tip: Launching the Browser - The easy way

Introduction This quick tip shows you how to launch the built-in Browser application in three ways. First, you learn how to launch the browser to a specific URL. Second, you learn how to create text with links. Third, you learn how to launch a...

Wednesday, 01 September 2010 | 1431 hits | Print |  E-mail | Report | Read more

9. Using the Quick Contact Badge

Introduction If you’ve spent any time on an Android device, you may have noticed how you can click on little Contact images to launch a toolbar with lots of different actions, such as call, text or email that person. In this Quick Tip, you learn...

Wednesday, 06 October 2010 | 2125 hits | Print |  E-mail | Report | Read more

10. Sending Pictures: The easy way

Introduction This quick tip shows you how to configure and send a picture to someone (for example, an MMS message). You will achieve this by creating and configuring the appropriate Intent within an application’s Activity, enabling the user to...

Thursday, 14 October 2010 | 2367 hits | Print |  E-mail | Report | Read more

11. Formatting Resource Strings

Introduction This quick tip shows you how to create and use string resources as format strings. You will achieve this by creating and configuring the appropriate string resources in XML and using them programmatically to supply the various typed...

Sunday, 17 October 2010 | 1406 hits | Print |  E-mail | Report | Read more

12. Quick Tip: Customize Android Fonts

Introduction Every Android device comes with a collection of standard fonts: Droid Sans, Droid Sans Mono and Droid Serif. They were designed to be optimal for mobile displays, so these are the three fonts you will be working with most of the time...

Wednesday, 03 November 2010 | 2600 hits | Print |  E-mail | Report | Read more