縮進UITextField文本和占位符

Question

我已經在我的UITableView頁腳中以編程方式創建了一個UITextField，如下所示：

let customView = UIView(frame: CGRect(x: 0, y: 0, width: self.view.bounds.width, height: 50))

self.textArea = UITextField(frame: CGRect(x: 0, y: 0, width: self.view.bounds.width - 50, height: 50))
self.textArea.placeholder = "Add Item"
self.textArea.layer.borderColor = UIColor.gray.cgColor
self.textArea.layer.borderWidth = 1
customView.addSubview(self.textArea)

let button = UIButton(frame: CGRect(x: self.view.bounds.width - 50, y: 0, width: 50, height: 50))
button.setTitle("Add", for: .normal)
button.setTitleColor(.white, for: .normal)
button.backgroundColor = UIColor(displayP3Red: 3.0 / 255.0, green: 0.0  / 255.0, blue: 113.0  / 255.0, alpha: 1.0)
button.addTarget(self, action: #selector(self.addWishListItem), for: .touchUpInside)
customView.addSubview(button)

self.tableView.tableFooterView = customView

我的問題是，如何縮進UITextField文本和占位符文本，使其不在左側的邊緣？

我找到了這個：

let paddingView = UIView(frame: CGRect(x: 0, y: 0, width: 15, height: self.textArea.frame.height))
            self.textArea.leftView = paddingView
            self.textArea.leftViewMode = .always

這樣做有更好的方法嗎？

Answer 1

您可以創建customTextField並覆蓋文本，占位符，邊框的rects。基本上所有內容。

import UIKit
class CustomTextField: UITextField {

    override func placeholderRect(forBounds bounds: CGRect) -> CGRect {
        return CGRect.init(x: 10, y: -10, width: bounds.width, height: bounds.height)
    }

    override func textRect(forBounds bounds: CGRect) -> CGRect {
        return CGRect.init(x: 10, y: -10, width: bounds.width, height: bounds.height)
    }
}

您可以通過更改x和y值來控制它的位置