Reset Wallpaper Once Settings Have Been Changed

[mjhavens]

I've just been trying to solve the same problem with a wallpaper I'm putting together. The solution in my case is as follows:

Add a global variable to the wallpaper servlce

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Using java Syntax Highlighting

1. public class LiveWallpaperService extends BaseLiveWallpaperService implements SharedPreferences.OnSharedPreferenceChangeListener {
2.         private boolean mSettingsChanged = false;
3.         ...
4. }
5.  

Parsed in 0.031 seconds, using GeSHi 1.0.8.4

Make a function that builds the scene from scratch

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Using java Syntax Highlighting

1. public void BuildScene(Scene scene) {
2.         // Destroy the current scene
3.         scene.detachChildren();
4.        
5.         // Create the scene with currentsettings
6.         ...
7. }      
8.  

Parsed in 0.030 seconds, using GeSHi 1.0.8.4

Catch preference changes and set global flag to indicate new settings need to come into play

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Using java Syntax Highlighting

1. public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
2.         nMySetting = Integer.parseInt(prefs.getString("num_setting", "3"));
3.         mSettingsChanged = true;
4. }
5.  

Parsed in 0.033 seconds, using GeSHi 1.0.8.4

Call BuildScene from load and resume functions as applicable

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Using java Syntax Highlighting

1. @Override
2. public Scene onLoadScene() {
3.         final Scene scene = new Scene();
4.         BuildScene(scene);
5.         return scene;
6. }
7.  
8. @Override
9. public void onResume() {
10.         super.onResume();
11.         if( mSettingsChanged )
12.         {
13.                 BuildScene( this.getEngine().getScene() );
14.                 mSettingsChanged = false;
15.         }
16. }
17.  

Parsed in 0.035 seconds, using GeSHi 1.0.8.4

Thank you so much jgibbs this has helped tremendously