Ui
    Utility for interacting with the UI thread.
Functions
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                  Throws an AssertionException if the current thread is the UI thread.
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                  Throws an AssertionException if the current thread is not the UI thread.
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                  Removes the given 
Runnable on the UI thread.Link copied to clipboard
                  Runs the given 
Runnable on the UI thread.Runs the given 
Runnable on the UI thread with the specified delay.