Android User Interface Development Beginner

Thereareover30,000applicationsforAndroidthathavebeendownloadedoveramilliontimesalready.Whatmakesyoursanydifferent?Buildingacompellinguser-interfacethatpeopleunderstandandenjoyisvitalforthesurvivalofanewapplicationinanenvironmentwherelookandfeelmaybetheonlythingbetweenauserpurchas