为现有的 Rails 应用程序创建 iPhone 和 Android 应用程序

创建Rails应用程序的iPhone和Android应用程序

ruby
# tasks_controller.rb
class TasksController < ApplicationController
  before_action :set_task, only: [:show, :update, :destroy]
  def index
    @tasks = Task.all
    render json: @tasks
  end
  def show
    render json: @task
  end
  def create
    @task = Task.new(task_params)
    if @task.save
      render json: @task, status: :created
    else
      render json: @task.errors, status: :unprocessable_entity
    end
  end
  def update
    if @task.update(task_params)
      render json: @task
    else
      render json: @task.errors, status: :unprocessable_entity
    end
  end
  def destroy
    @task.destroy
  end
  private
  def set_task
    @task = Task.find(params[:id])
  end
  def task_params
    params.require(:task).permit(:title, :description, :completed)
  end
end

swift
import UIKit
class TaskListViewController: UIViewController {
    var tasks = [Task]()
    override func viewDidLoad() {
        super.viewDidLoad()
        // 请求任务数据
        TaskService.shared.getTasks { [weak self] result in
            switch result {
            case .success(let tasks):
                self?.tasks = tasks
                self?.tableView.reloadData()
            case .failure(let error):
                print("获取任务失败：%%(error)")
            }
        }
    }
    // 省略其他界面元素和UITableViewDataSource/UITableViewDelegate方法
}

kotlin
class TaskListActivity : AppCompatActivity() {
    private val taskList = ArrayList()
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_task_list)
        // 请求任务数据
        TaskService.getTasks(object : TaskService.TaskServiceCallback> {
            override fun onSuccess(tasks: List) {
                taskList.clear()
                taskList.addAll(tasks)
                updateTaskList()
            }
            override fun onFailure(error: String) {
                Log.e("TaskListActivity", "获取任务失败: $error")
            }
        })
    }
    // 省略其他界面元素和适配器代码
}