在 iOS SDK 中,我们可以添加多个标签栏。具体取决于您使用的 iOS 模拟器版本,支持的标签栏数量可能有所不同。在较新的 iOS 模拟器中,您可以使用 UIWindow
的 rootViewController
属性来添加多个标签栏。以下是一个示例代码片段,展示如何在 iOS 模拟器中添加五个标签栏:
import XCTest
class MyTests: XCTestCase {
var window: UIWindow?
override func setUp() {
super.setUp()
// Create the window
window = UIWindow(frame: UIScreen.main.bounds)
window?.backgroundColor = .clear
window?.rootViewController = UIViewController()
window?.makeKeyAndOrderFront(nil)
}
override func tearDown() {
// Remove the window
window?.removeFromSuperview()
window = nil
super.tearDown()
}
// Test adding five labels
func testAddingFiveLabels() {
// Create five labels
let label1 = UILabel()
let label2 = UILabel()
let label3 = UILabel()
let label4 = UILabel()
let label5 = UILabel()
// Add the labels to the view
label1.frame = CGRect(x: 0, y: 0, width: 100, height: 20)
label2.frame = CGRect(x: 100, y: 0, width: 100, height: 20)
label3.frame = CGRect(x: 200, y: 0, width: 100, height: 20)
label4.frame = CGRect(x: 300, y: 0, width: 100, height: 20)
label5.frame = CGRect(x: 400, y: 0, width: 100, height: 20)
// Add the labels to the window
window?.addSubview(label1)
window?.addSubview(label2)
window?.addSubview(label3)
window?.addSubview(label4)
window?.addSubview(label5)
// Make sure the labels are displayed
window?.makeKeyAndOrderFront(nil)
}
// Test adding five labels with different fonts
func testAddingFiveLabelsWithDifferentFontSizes() {
// Create five labels
let label1 = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 20))
let label2 = UILabel(frame: CGRect(x: 100, y: 0, width: 100, height: 20))
let label3 = UILabel(frame: CGRect(x: 200, y: 0, width: 100, height: 20))
let label4 = UILabel(frame: CGRect(x: 300, y: 0, width: 100, height: 20))
let label5 = UILabel(frame: CGRect(x: 400, y: 0, width: 100, height: 20))
// Set the fonts of the labels
label1.font = UIFont.systemFont(ofSize: 17)
label2.font = UIFont.systemFont(ofSize: 19)
label3.font = UIFont.systemFont(ofSize: 21)
label4.font = UIFont.systemFont(ofSize: 23)
label5.font = UIFont.systemFont(ofSize: 25)
// Add the labels to the view
view.addSubview(label1)
view.addSubview(label2)
view.addSubview(label3)
view.addSubview(label4)
view.addSubview(label5)
// Make sure the labels are displayed
view.makeKeyAndOrderFront(nil)
}
// Test adding five labels with different text alignments
func testAddingFiveLabelsWithDifferentTextAlign
领取专属 10元无门槛券
手把手带您无忧上云