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Apps Newbie question about best Android coding practices

Hi,

A year ago I developed an app as part of a group project at uni. Due to the limitations set by the project rules the app isn't properly designed for Android. The app is a tour guide, in 2 parts. The guide itself is an XML file which has all the content on it. The other part is the player, which is an Android app. The player parses the XML and forms Java Classes to store the data and then play it. The content is saved in the form of Slides in a Slideshow (part of the requirements of the project, not our choice). So for instance 1 slide will be the main menu, then clicking a button will take you to another slide which will be a sub menu and so on.

Now a year later I've come to update this app, originally I was just intending to change the AbsoluteLayouts we used to Relative/Linear/List/whatever works best for that particular slide and also to put the layouts into XML rather keep them in the Java. However I was wondering what would be the best Android practice for an app such as this?

The advantage of using XML for the guide is that say if we had a guide to a different city we could just upload that new XML to a server (the player can download remotely) and then download it to get a new tour guide. However would it be best for me to strip away all of this and start afresh, with Android in mind? I.E. by removing the need to parse an XML file at the start and just have a new app for each city?

I've been thinking about a complete overhaul as changing AbsoluteLayout will be a pain. At the moment each component is given X and Y coordinates in the main XML file, so changing that to relative commands, changing the parser to read that will be hard. Also it's best practice to store the layouts in R.layout but it would be hard to convert the layout from the main Tour Guide XML to a layout XML... if that makes sense :/

If I were to remove the main XML, how would I handle each menu or content page? Would they be given their own activity?

Sorry for the long post, I just want to be clear on what the best way to update this app would be and am just learning how to properly design Android apps. I really appreciate any advice and for taking the time to read this post!
 
Thanks for the link. I've already made my way through the Google Tutorials but will have a look at these ones. I know a fair about about the coding itself, I'm just wanting to know how I should layout this specific application I already have. I'm thinking that it will be easier to rewrite the app using XML layouts than to change the parser to accept relative layout commands.
 
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