16f6c0aecf
Inline adoc files when they are included exactly once. Also fix language tags because this inlining gives us better information on what language the code is written in.
54 lines
1.2 KiB
Plaintext
54 lines
1.2 KiB
Plaintext
== Why is this an issue?
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It is often considered good practice at the end of an override to invoke ``++super++``, but there are cases where according to the Apple developer documentation this should not be done.
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* ``++updateLayer++`` - optimize the rendering of your view
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* ``++loadView++`` - provide a ``++view++`` when ``++view++`` is ``++nil++``
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* ``++providePlaceholder++`` - provide a placeholder for a document returned by the Document Picker but not yet stored locally
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In all cases, these are actions that should happen once and only once. Subsequently invoking ``++super++`` would see your desired result replaced (at best) by less specialized results.
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=== Noncompliant code example
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[source,swift]
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----
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class VC: UIMyViewController {
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override func loadView() {
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// ...
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super.loadView()
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}
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}
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----
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=== Compliant solution
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[source,swift]
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----
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class VC: UIMyViewController {
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override func loadView() {
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// ...
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}
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}
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Remove this call to "super.xxx()".
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=== Highlighting
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``++super.xxx()++``
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endif::env-github,rspecator-view[]
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