The following slides introduce the Android mobile operating system.

Slide 11.ⓐ: Android app construction (video: 31:26 minutes)

Slide 11.1: Mobile-commerce transaction processing
Slide 11.2: Mobile-commerce app architecture
Slide 11.3: Downloading and installing Android Studio
Slide 11.4: Android programming
Slide 11.5: Android overview
Slide 11.6: Android architecture (video: 14:42 minutes)
Slide 11.7: Android Studio
The Android code given in this course is correct, but it may not work for current Android SDK or API because of the backward compatibility issue of Android. Unless you know how to modify the gradle file, you had better use the given “Hello World ” template of Android, and fill in the template by using the code from the instructor.



      “By three methods we may learn wisdom:    
      First, by reflection, which is noblest;    
      Second, by imitation, which is easiest; and    
      third by experience, which is the bitterest.”    
      ― Confucious