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    <p>Power consumption...<br> 1) The most important thing, by far, is that your wallpaper should switch itself off when it is not visible. The cube example handles this correctly, removing runnable callbacks in onDestroy(), onSurfaceDestroyed(), and onVisibilityChanged() (when visible == false).<br> 2) Beyond that, the largest determinant of power drain will be your frame rate. A 24 fps animation will drain much more juice than a clock that just updates at 1 fps to make its sweep-second hand tick. There's no way around this, except to educate the user, so that expectations are reasonable. An action game will kill your battery whether it's an app or a live wallpaper.</p> <p>Performance...<br> Drawing to a canvas has the benefit of simplicity, but for a very sophisticated wallpaper you will need to use OpenGL. There's GLWallpaperService, and AndEngine. The stock wallpapers are rigged to use RenderScript (you may find it useful to look up this code within the Android source tree -- much more sophisticated than the cube example in the SDK). And there was some talk about extending libGDX to handle wallpaper.</p> <p>Best Fit...<br> Well, it's just like the rest of Android: you need to design your artwork in terms of scalable proportions, query the device, and adjust accordingly. For a simple wallpaper, it's usually enough to scale your artwork in onSurfaceChanged(), where you are given the width and the height as parameters. In some cases you may want to examine the full DisplayMetrics.</p>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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