AppleのApp-Development-with-Swift-Certified-User認定試験はIT職員が欠くことができない認証です。IT職員のキャリアと関連しますから。 AppleのApp-Development-with-Swift-Certified-User試験トレーニング資料は受験生の皆さんが必要とした勉強資料です。CertJukenのトレーニング資料は受験生が一番ほしい唯一なトレーニング資料です。CertJukenのAppleのApp-Development-with-Swift-Certified-User試験トレーニング資料を手に入れたら、試験に合格することができるようになります。
| Section | Weight | Objectives |
|---|---|---|
| Data Handling and Logic | 15% | - Basic data processing
|
| Development Environment | 15% | - Xcode interface and tools
|
| SwiftUI Basics | 25% | - State management
|
| App Design and Best Practices | 15% | - Code organization
|
| Swift Programming Fundamentals | 30% | - Functions
|
>> App-Development-with-Swift-Certified-User資格準備 <<
現代社会では、私たちは毎日忙しいです。したがって、個々の時間は制限されています。事実、あなたが学ぶことを決心したなら、何もあなたを止めることはできません！幸運にも、App-Development-with-Swift-Certified-User試験の資料に出会えます。 App-Development-with-Swift-Certified-User試験の最短時間で改善できるようにお手伝いします。あなたもApp-Development-with-Swift-Certified-User試験について何も知りません。全く問題ありません。約20〜30時間のガイダンスを受け入れるだけで、試験に簡単に参加できます。ご覧のとおり、App-Development-with-Swift-Certified-User模擬試験はあまり時間をかけません。
質問 # 31
When you press ' Show Button ' on your app. a modal View appears.
Complete the code by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct answer.
正解：
解説：
Explanation:
This question belongs to View Building with SwiftUI , specifically the domain on creating a multi-view app with navigation stacks, links, and sheets .
To present a modal view in SwiftUI when a Boolean state changes, the correct modifier is .sheet . The matching sheet API for a Boolean binding is:
sheet(isPresented: $showInfo) {
// modal content
}
So the first blank must be .sheet , and the second blank must be (isPresented: .
The logic works like this:
* @State stores the local Boolean that controls presentation.
* Pressing the button calls showInfo.toggle(), changing the value from false to true.
* When that Boolean becomes true, the .sheet(isPresented:) modifier presents the modal view.
* When the modal is dismissed, SwiftUI updates the Boolean back as needed.
There is also a typing issue in the screenshot: the state variable appears as ShowInfo, while the button and binding use showInfo. Swift is case-sensitive, so those names must match. The corrected code should use the same identifier consistently, such as:
@State var showInfo = false
Therefore, the correct dropdown selections are:
sheet
(isPresented:
質問 # 32
If View A calls View B, which Swift Property Wrapper would you use in View B in order to return the value of a state to View A?
正解：C
解説：
Comprehensive and Detailed Explanation From App Development with Swift domains:
This question belongs to View Building with SwiftUI , specifically the objective on using @State,
@Binding, @Environment, and observable data to share data between views.
The correct answer is @Binding because @Binding creates a two-way connection to a value that is owned by another view. In this scenario, View A owns the state, and View B needs to read and modify that value so the change is reflected back in View A. Apple's SwiftUI documentation describes a binding as a reference to a mutable value that is owned elsewhere, which is exactly the pattern used when a child view needs to update a parent view's state. ( developer.apple.com )
@State is not correct for View B here because @State is used for local state owned by that specific view. If View B used @State, it would manage its own separate copy rather than updating the parent's value.
@Environment is used to access values provided by the system or ancestor views, not for directly returning a specific parent state value in this pattern. @Observable is related to observable model objects and is not the direct property wrapper used in a child view for two-way parent-child state passing. ( developer.apple.com ) So when View A passes a state value into View B and expects updates to flow back, View B should use
@Binding .
質問 # 33
Review the code snippet.
The code snippet does not compile.
Which two actions will fix the errors? (Choose 2.)
正解：C、E
解説：
This question belongs to Swift Programming Language , especially the domains covering basic Swift types
, operators , and constants versus variables .
There are two compile problems in the snippet. First, unitPrice and shipping are inferred as Double, while quantity is inferred as Int. In Swift, arithmetic operands must have compatible types; Swift does not automatically mix Int and Double in one arithmetic expression. So unitPrice * quantity fails unless quantity is changed to Double or explicitly converted. That makes A a correct fix.
Second, the line totalCost += ... uses the compound assignment operator +=, which stores a new value back into the left-hand side. Swift requires the left-hand side of += to be mutable, so totalCost must be declared with var, not let. That makes D the second correct fix.
The other choices do not solve the actual compile issues. B is unnecessary because totalCost is already explicitly declared as Double, so 0 is valid there. C would still leave shipping as Double, so the mixed-type arithmetic problem remains. E is irrelevant because shipping is never reassigned. Therefore, the two correct answers are A and D
質問 # 34
Complete the code that will add the BlueView to the NavigationStack and present the RedView modally.
|Complete the code by typing in the boxes.
正解：
解説：
NavigationLink, .sheet
Explanation:
This question falls under View Building with SwiftUI , specifically the domain covering multi-view apps with navigation stacks, links, and sheets . The first blank must be NavigationLink because SwiftUI uses a navigation link inside a NavigationStack to push or present a destination view as part of the navigation hierarchy. Apple's documentation states that people tap or click a NavigationLink to present a view inside a NavigationStack or NavigationSplitView. That matches the first code section, where tapping " Show Blue View " should navigate to BlueView().
The second blank must be .sheet because the code uses isPresented: $showRedView, which is the standard SwiftUI sheet modifier for modal presentation controlled by a Boolean binding. Apple documents sheet (isPresented:onDismiss:content:) as the modifier to use when you want to present a modal view when a Boolean becomes true. Since the button toggles showRedView, SwiftUI presents RedView() modally as a sheet.
So the completed structure is effectively:
NavigationLink( " Show Blue View " ) {
BlueView()
}
sheet(isPresented: $showRedView) {
RedView()
}
This directly aligns with SwiftUI navigation and modal presentation patterns in the App Development with Swift objective domains.
質問 # 35
Review the code:
Given a struct called Animal, what line of code should be added on line 5 in order to produce the output shown?
正解：C
解説：
This question belongs to View Building with SwiftUI , especially the objective domain on using List views to iterate through collections and displaying model data in SwiftUI. In the code, animals is the data source passed into List(animals) { animal in ... }. That closure iterates through each element of the collection one at a time, and the parameter animal represents the current Animal instance for that row. To show the name of the current animal in the UI, the correct statement is Text(animal.name). SwiftUI's list documentation explains that each row inside a List must be a SwiftUI View, and a Text view is a standard way to display a string value for each item in the collection.
Option D is therefore correct because it accesses the name property of the current animal object being processed by the List closure. This is the standard SwiftUI pattern when iterating over identifiable model objects: pass the collection into List, receive each item in the closure, and build a row view from that item's properties. Apple's SwiftUI tutorials repeatedly use this collection-driven row-building pattern for lists and navigation.
The other options are incorrect for clear reasons. A incorrectly refers to the type name Animal instead of the current instance. B uses Animals with the wrong identifier and an invalid indexing approach. C also treats animal as an index rather than the current element object. Since the closure already gives you the current Animal, you directly access its property with animal.name.
質問 # 36
......
もしあなたはまだ合格のためにApple App-Development-with-Swift-Certified-Userに大量の貴重な時間とエネルギーをかかって一生懸命準備し、Apple App-Development-with-Swift-Certified-User「App Development with Swift Certified User Exam」認証試験に合格するの近道が分からなくって、今はCertJukenが有効なApple App-Development-with-Swift-Certified-User認定試験の合格の方法を提供して、君は半分の労力で倍の成果を取るの与えています。
App-Development-with-Swift-Certified-User科目対策: https://www.certjuken.com/App-Development-with-Swift-Certified-User-exam.html