[Swift]how to use custom section header of TableView

We can use custom section header on UITableView.

Sub class : UITableViewHeaderFooterView

UITableViewHeaderFooterViewを継承したクラスを作成します。 We need to implement the sub class of UITableViewHeaderFooterView.

import UIKit

class CustomTableViewHeaderFooterView: UITableViewHeaderFooterView {

    @IBOutlet weak var headerView: UIView!
    
    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }
}

Nib file

We need to implement the view for Header.

Set to TableView

We need to use tableView.registerNib like a Cell. This is used return value in tableView:viewForHeaderInSection method.
If View width is no good, you need to set frame.size.

class ViewController: UITableViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let nib:UINib = UINib(nibName: "CustomTableViewHeaderFooterView", bundle: nil)
        tableView.registerNib(nib, forHeaderFooterViewReuseIdentifier: "CustomTableViewHeaderFooterView")
    }
    
    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }
    
    // header height
    override func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return 44
    }
    
    
    // header view
    override func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        let header :CustomTableViewHeaderFooterView = self.tableView.dequeueReusableHeaderFooterViewWithIdentifier("CustomTableViewHeaderFooterView") as! CustomTableViewHeaderFooterView
        header.headerView.frame.size = CGRectMake(0, 0, tableView.frame.size.width, 44).size
        
        return header
    }
    
}

BottomSheet vis Android Design Support Library 23.2.0

Android Design Support Library had added BottomSheet from ver.23.2.
We can implement BottomSheet design like a GoogleMap.


AOSP: BottomSheetBehavior.java

Layout Sample

We add the param app:layout_behavior="@string/bottom_sheet_behavior" in child view of CoordinatorLayout.

<android.support.design.widget.CoordinatorLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

    <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            app:layout_behavior="@string/bottom_sheet_behavior"
            app:behavior_peekHeight="240dp"
            app:behavior_hideable="false"
            android:background="@android:color/white">
        <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="BottomSheet Sample"/>
    </LinearLayout>
</android.support.design.widget.CoordinatorLayout>

We cab add following params.

• app:behavior_peekHeight
• BottomSheet minimum size
• app:behavior_hideable
• BottomSheet is hidden when scroll to bottom.