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【SwiftUI】NavigationBarのカスタマイズ

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自分が設定に少し手間取ったので、メモとして残します。色々と調べた結果をまとめ、汎用化コードを設計。
これさえあれば、ナビゲーションバーのデザインは完璧。

###関数の準備

func setupNavigationBar() {
    let appearance = UINavigationBarAppearance()
    appearance.configureWithOpaqueBackground()
    //    背景色
    appearance.backgroundColor = UIColor(red: 33/255, green: 73/255, blue: 125/255, alpha: 1)
    //    タイトル文字色
    appearance.titleTextAttributes = [.foregroundColor: UIColor.white]
    UINavigationBar.appearance().standardAppearance = appearance
    UINavigationBar.appearance().scrollEdgeAppearance = appearance
    UINavigationBar.appearance().compactAppearance = appearance
    //    遷移後の「<戻る」ボタンの色
    UINavigationBar.appearance().tintColor = .white
}

###あとはinit()の際に読み込む

    init(){
        setupNavigationBar()
    }

###補足

# インライン表示(ほぼ全てのアプリがインライン表示)
 .navigationBarTitleDisplayMode(.inline)
# ナビゲーションバーを一時的に消したいとき
 .navigationBarHidden(true)

#####あとはNavigationbarItemsでメニューを追加するだけ。

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