2024/4/25

package com.example.personalwork.fragment.entry

import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.navigation.fragment.findNavController
import com.example.personalwork.R
import com.example.personalwork.databinding.FragmentEntryBinding

class EntryFragment : Fragment() {

    var _binding: FragmentEntryBinding? = null
    val binding get() =_binding!!

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        _binding = FragmentEntryBinding.inflate(inflater,container,false)

        //init button
        init()

        //跳转到登录界面
        binding.btnLogin.setOnClickListener {
            findNavController().navigate(R.id.action_entryFragment_to_loginFragment)
        }
        //跳转到注册界面
        binding.btnRegister.setOnClickListener {
            findNavController().navigate(R.id.action_entryFragment_to_registerFragment)
        }

        return binding.root
    }


    fun init(){
       val btnLogin =  binding.btnLogin
        val btnRegister = binding.btnRegister
    }


    override fun onDestroyView() {
        super.onDestroyView()
        _binding = null
    }


}

package com.example.personalwork.fragment.login


import User
import android.content.Context
import android.content.SharedPreferences
import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Toast
import android.widget.Toast.*
import androidx.lifecycle.lifecycleScope
import androidx.navigation.fragment.findNavController
import com.example.personalwork.R
import com.example.personalwork.data.backData.LoginResponse
import com.example.personalwork.data.models.UserData
import com.example.personalwork.databinding.FragmentLoginBinding
import com.example.personalwork.utils.ApiClient
import com.example.personalwork.utils.ApiService
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import retrofit2.Call
import retrofit2.Response
import retrofit2.Retrofit
import retrofit2.converter.gson.GsonConverterFactory
import retrofit2.create


class LoginFragment : Fragment() {
    var _binding: FragmentLoginBinding? = null
    val binding get() = _binding!!

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        _binding = FragmentLoginBinding.inflate(inflater,container,false)
        //初始化
        init()
        return binding.root
    }

    fun init(){
        val editNo = binding.editNo
        val editPassword = binding.editPassword
        val btnEntry = binding.btnEntry
        btnEntry.setOnClickListener {
            val noText = editNo.text.toString()
            val passwordText = editPassword.text.toString()
            Login(noText,passwordText)
        }
    }

    fun Login(noText:String,passwordText:String){
        val user = User(noText,passwordText)

        lifecycleScope.launch {
            try {
                val loginResponse = ApiClient.apiService.login(user)
                val result = loginResponse.body()?.data
                val roleId = result?.user?.roleid

                if (result != null){
                    showMessage("登录成功")
                    context?.let { saveResultToSharedPreferences(result, it.applicationContext) }
                    if(roleId == 0){
                        withContext(Dispatchers.Main){
                            findNavController().navigate(R.id.action_loginFragment_to_studentListFragment)
                        }
                    }else if(roleId == 1){
                        withContext(Dispatchers.Main){
                            findNavController().navigate(R.id.action_loginFragment_to_teacherListFragment)
                        }
                    }
                }else{
                    showMessage("登录失败")
                }
            }catch (e:Exception){
                e.printStackTrace()
            }
        }
    }

    fun saveResultToSharedPreferences(result:UserData ,context: Context){
        val sharedPreferences: SharedPreferences = context.getSharedPreferences("User",Context.MODE_PRIVATE)
        val editor = sharedPreferences.edit()
        editor.putInt("userId", result.user.id)
        editor.putString("userName",result.user.name)
        editor.putInt("userRoleId",result.user.roleid)
        editor.apply()
    }

    fun showMessage(text: String){
        Toast.makeText(requireContext(),text, LENGTH_SHORT).show()
    }
}