Soma at 18:40, 8 February 2021

2021-02-08T18:40:30Z

← Older revision		Revision as of 18:40, 8 February 2021
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	Video from the lecture given on February 8, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec09-20210208.m4v is now available].		Video from the lecture given on February 8, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec09-20210208.m4v is now available].

			==Notes==

			<pre>
			Lecture 9
			------------
			schedule
			A1 solutions
			T4 via live coding

			Midterm
			- midterm on March 3rd, 11:35 AM
			- review on March 1st
			- timed, 80 min, during class time
			- download PDF of midterm from cuLearn
			- upload solutions to cuLearn (via an assignment) before the end of exam period
			- open book/internet, open note, NO COLLABORATION
			- interviews afterwards to verify you understood what you said on the midterm
			- random + selected
			- you may volunteer
			- if there is clear evidence that you don't know enough to have given the answers
			you did, then I'll be talking to the Dean
			- questions on midterm are more conceptual than coding
			- do you know what is going on?
			- treat the midterm as practice for the final
			- everything you do in this class is an opportunity to raise your grade
			- midterm will all be short answer
			- some more conceptual, some based on specific code examples
			- any "code" in answers will be very short (at most 3 lines)
			- more on reading rather than writing code

			Tutorial 4 is due Feb. 21st, before midnight
			Assignment 2 is due Feb 26th
			- midterm is based on Assignment 1 & 2, which are based on Tutorials 1-4
			- (maybe Tutorial 5, but then Tutorial 5 will reinforce concepts from 1-4)

			Defensive programming
			- planning for eventualities that are "impossible", because you know,
			they turn out to be possible when you least expect it
			- especially as code evolves over time
			</pre>

	==Code==		==Code==

Soma: Created page with "==Video== Video from the lecture given on February 8, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec09-20210208.m4v is now available]...."

2021-02-08T18:39:15Z

Created page with "==Video== Video from the lecture given on February 8, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec09-20210208.m4v is now available]...."

New page

==Video==

Video from the lecture given on February 8, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec09-20210208.m4v is now available].

==Code==

<syntaxhighlight lang="swift" line>
import SwiftUI

struct ContentView: View {
@State var c = 0
@State var p = CGPoint(x: 0, y: 0)

var body: some View {
VStack{
Text("Hello, you clicked \(c) times.")
.padding()
Image("sadDog")
.resizable()
.scaledToFit()
.position(p)
.gesture(
DragGesture()
.onEnded {_ in
print("Drag ended!")
self.p = CGPoint(x: 0, y: 0)
}
.onChanged {v in
self.p = v.location
}
)
.onTapGesture(count: 1, perform: {
c = c + 1
})
}
}
}

struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
</syntaxhighlight>

Mobile App Development 2021W Lecture 9 - Revision history

Soma at 18:40, 8 February 2021

Soma: Created page with "==Video== Video from the lecture given on February 8, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec09-20210208.m4v is now available]...."