Changing the background of the android via java

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I have an application in mind, but I do not know how to do the main function of it.

I need to change the background of the home Android system (not the application) through the application. Ex the user clicks a button and this button modifies the image in the system background.

Does anyone know if it is possible to change this background and how can I change it?

    
asked by anonymous 17.06.2015 / 03:40

0 answers