CSC 349: The Week beginning Sept. 2

• Homework:
  
  Read and summarize the following (4-5 sentences per article):
  
  Google Play apps with 1.5 million downloads drained batteries and slowed devices (Ars technica)
  
  Google Play app with 100 million downloads executed secret payloads (Ars technica)
  
  In the context of Android/Kotlin programming define the following terms
  • package
  • super
  • val vs var
  • override
  • import
  • AndroidManifest
  • Gradle
  
  Combine the above into one Word document.
  
  Due: Sept. 10
  
  
• Tuesday:
  
  RestCalc_kotlin.zip (two EditTexts)
  
  RestCalc_Radio_kotlin.zip (one EditText, one RadioGroup with RadioButtons)
  
  Lab 3: Potato Calorie Count (source: https://www.verywell.com/how-many-calories-in-a-baked-potato-2506867) Design an app that allows the user to determine the number of calories in a baked potato. The app should have an EditText in which the the user can enter the size of the potato (between 5 and 12 ounces). Next the app should have a set of Radio Buttons by which the user can select one for the toppings. The app should also have a Button, and TextView for displaying the answer (number of calories). When the user clicks the button, determine the size of and topping on the potato and display the corresponding number of calories. Check that the potato size falls in the range from 5 to 12. There are 25 calories for each ounce in a potato. The possible toppings are: (Nothing, Butter, Sour Cream, Chili) which correspond to additional calories of (0, 100, 60, 75) respectively. If the user changes the size of the potato or the topping, then your app should clear out the calorie count. Submit the .xml file for the layout, and the .kt files (zipped up).
  
  Due: Sept. 10
  
  
• Thursday:
  
  SharedClear.zip A way to write one clear method that handles multiple EditText text-changed events.
  
  DayTimeRadio_kotlin.zip How to clear radio buttons. How to pre-select radio buttons
  
  SpinnerDemo_kotlin.zip Demos Spinners (like a drop-down list). Populates in two different ways: 1) from a code array; 2) from a resource array
  
  Lab 4: Potato Calorie Count Revisted (source: https://www.verywell.com/how-many-calories-in-a-baked-potato-2506867) Design an app that allows the user to determine the number of calories in a baked potato. The app should have a Spinner in which the the user can enter the size of the potato (between 5 and 12 ounces). Next the app should have a second Spinner by which the user can select one for the toppings. The app should also have a Button, and TextView for displaying the answer (number of calories). When the user clicks the button, determine the size of and topping on the potato and display the corresponding number of calories. There are 25 calories for each ounce in a potato. The possible toppings are: (Nothing, Butter, Sour Cream, Chili) which correspond to additional calories of (0, 100, 60, 75) respectively. If the user changes the size of the potato or the topping, then your app should clear out the calorie count. Submit the .xml file for the layout, the .kt files, and if-used to populate a spinner the strings.xml (zipped up).