iOS Swift - Navigation
You want to create a list of items where each item navigates to a detail screen showing that item's name. Which code correctly uses NavigationLink inside a List to achieve this?
You want to create a list of items where each item navigates to a detail screen showing that item's name. Which code correctly uses NavigationLink inside a List to achieve this?
hard📝 navigation Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand List with NavigationLink
Use List with identifiable items and NavigationLink inside closure for each item.Step 2: Check each option's correctness
List(items, id: \.self) { item in NavigationLink(destination: DetailView(name: item)) { Text(item) } } correctly uses List with id and NavigationLink with destination and label. List { NavigationLink(Text(item), destination: DetailView(name: item)) } has wrong parameter order. ForEach(items) { NavigationLink(destination: DetailView(name: $0)) { Text($0) } } uses ForEach but misses id and may cause errors. List(items) { item in NavigationLink { Text(item) } destination: { DetailView(name: item) } } uses invalid syntax for NavigationLink.Final Answer:
List(items, id: \.self) { item in NavigationLink(destination: DetailView(name: item)) { Text(item) } } -> Option CQuick Check:
List + NavigationLink with destination and label = List(items, id: \.self) { item in NavigationLink(destination: DetailView(name: item)) { Text(item) } } [OK]
Quick Trick: Use List with id and NavigationLink inside closure [OK]
Common Mistakes:
- Wrong parameter order in NavigationLink
- Missing id in List or ForEach
- Using invalid NavigationLink syntax
Master "Navigation" in iOS Swift
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