How to call back live wallpaper preview layout

In livewallpaper it has two button setting and set . When I click button setting it will call preference screen . I want to com开发者_开发技巧e back to livewallpaper preview screen when I click any item in preference screen . How can I do it . Thanks in advance !

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If you are referencing to CubeLiveWallpaper example from sample android code, add following code to CubeWallpaper2Settings.java

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
    finish();
}