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3.4 Paint Pot Projects Curriculum Page
Answer the following questions:
- For enhancement #6 (the if/else exercise) give a brief description of your solution to this problem. Provide a screen shot of your code -- the revised blocks -- and describe how the if/else block works to solve the problem in this case. If appropriate, include a description of any significant problems or bugs you encountered in solving this problem. App Inventor now has a Download Blocks as Image feature (right click on the white space in the blocks editor to choose) that also can be used to take a screenshot of all of your code or the Windows snipping tool can be used.
- Answer
- The blocks above represent the if/else code. When the minus button is clicked, the app checks to see if the value in the dot size variable is equal to 1. If it is, then it will subtract 1 but at trhe same time keep it equal to 1, then change the label1 text to that dot size. I also added something so there will be voice feedback when pressed.
- When you use the Camera component to take a picture as the Canvas background, explain why the picture goes away when the app is restarted. HINT: Think about the different hardware components we talked about in an earlier lesson and where on the device the picture is stored. What do you think could be done to prevent the picture from disappearing when the app is restarted?
- Answer
- The picture is not remembered by the app because it's not being stored in the app. If you want the app to remember the picture would have to be added to the app, or add a share component to the app to share to yourself and save.
This Block says that when the canvas is touched then it will get the procedure to draw a circle that is on the X, Y coordinate point and check the radius for the size of the circle.
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