13.10 添加日程事件

现在我们点击添加日程的浮层按钮中，添加切换到 “日程添加编辑” TodoEditFragment的逻辑。

// 添加日程事件
fab?.setOnClickListener { _ ->
    // Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG).setAction("Action", null).show()
    val todoEditFragment = TodoEditFragment()
    getSupportFragmentManager()
            .beginTransaction()
            .replace(R.id.content_main, todoEditFragment, todoEditFragment.javaClass.getSimpleName())
            .addToBackStack(todoEditFragment.javaClass.getSimpleName())
            .commit()
    hideFab()
}