Download e-book for iPad: Advanced MVVM by Josh Smith

By Josh Smith

This publication is for WPF and Silverlight builders trying to take their Model-View-ViewModel talents to the following point. It studies how the MVVM layout trend was once used to create a enjoyable and addictive video game that offers a chic consumer event. learn this publication to realize insights from Josh Smith, an well-known specialist in WPF, Silverlight, and MVVM, on easy methods to safely layout advanced View and ViewModel architectures. methods to help limitless undo, coordinate lively transitions, keep an eye on modal conversation packing containers from a ViewModel, and masses extra.

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The BubbleBurst user interface could be replaced with a whole new set of Views and no changes would be necessary in the ViewModel layer (unless those new Views required functionality not currently available). MVVM makes life better! Special Thanks There are many people that I would like to thank for their input on this project. First and foremost, I would like to thank Johann Sebastian Bach, George Frideric Handel, Franz Schubert, Felix Mendelssohn, and Steve Reich. Their music provided me with the inspiration needed to push my limits and expand my horizons, with regards to the technical, artistic, and literary aspects of the project.

The user cannot click on any bubbles or undo the previous burst at this point. The game-over dialog is shown below: When the game-over dialog appears on the screen it bounces into place. If the user clicks on ‘PLAY AGAIN’, the dialog flies into the background while a new set of bubbles fills the window. ” The intro animation begins when the GameOverView’s Visibility is set to Visible, and the outro animation begins in response to some code that executes when the user clicks the ‘PLAY AGAIN’ Hyperlink control.

Creating Undo Tasks BubbleMatrixViewModel exposes an Undo method that is invoked by the code seen in the previous section. That method merely delegates the work off to the task manager, because undoing a bubble group burst involves reusing the tasks that performed the burst. ///

/// Reverts the game state to how it was before /// the most recent group of bubbles was burst. CanUndo) { // Throw away the last bubble group size, // since that burst is about to be undone. CanUndo; } } As you can see in the following code snippet from BubblesTaskManager, the code involved with undoing a bubble group burst looks quite similar to the code required to perform the burst in the first place.

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Advanced MVVM by Josh Smith


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