iOS 14 适配要点总结

1. 读取剪切板自动提示用户

2. 使用相机和麦克风自动提示用户

3. 定位精度

private lazy var locationManager: CLLocationManager = {
        let manager = CLLocationManager()
        manager.delegate = self
        return manager
 }()
    
    
private func start() {
        
        if #available(iOS 14.0, *) {
            if locationManager.accuracyAuthorization == .reducedAccuracy {
                // 如果没有精准定位，可以向用户临时申请给一次精准定位的机会
                // 这个key其实是想获取定义在info.plist的键Privacy - Location Temporary Usage Description Dictionary中
                // 设置的提示，为什么需要获取精准定位？
                locationManager.requestTemporaryFullAccuracyAuthorization(withPurposeKey: "deliver")
            }
        }
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()
}

3.1 强制只获取默认地址

4. Limited Photo

4.1 默认选择图片方式

iOS13以下选取图片

let picker = UIImagePickerController()
picker.delegate = self
present(picker, animated: true, completion: nil)

iOS13及以上选取图片

/// 使用
private func picker() {

        if #available(iOS 14, *) {
            var configuration = PHPickerConfiguration()
            configuration.selectionLimit = 9
            let picker = PHPickerViewController(configuration: configuration)
            picker.modalPresentationStyle = .fullScreen
            picker.delegate = self
            present(picker, animated: true, completion: nil)
        } else {
            // Fallback on earlier versions
        }
    }
    
    @available(iOS 14, *)
    func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
        print(results.count)
        print(results)
    }

4.2 写入图片至相册

private func write() {
    UIImageWriteToSavedPhotosAlbum(imageView.image!, nil, nil, nil)
}

4.3 可以参考微信

更多请参考：相册详细适配指南

5. Mac地址变动