增加离线地图下载流程

2023-03-30 16:08:36 +08:00
parent 3a80a4ee5d
commit ca1be58db2
11 changed files with 308 additions and 27 deletions
--- a/app/src/main/java/com/navinfo/omqs/ui/activity/login/LoginActivity.kt
+++ b/app/src/main/java/com/navinfo/omqs/ui/activity/login/LoginActivity.kt
@@ -2,12 +2,16 @@ package com.navinfo.omqs.ui.activity.login

 import android.content.Intent
 import android.os.Bundle
+import android.util.Log
+import android.widget.Toast
 import androidx.activity.viewModels
+import androidx.appcompat.app.AlertDialog
 import androidx.databinding.DataBindingUtil
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.navinfo.omqs.R
 import com.navinfo.omqs.databinding.ActivityLoginBinding
-import com.navinfo.omqs.ui.activity.map.MainActivity
 import com.navinfo.omqs.ui.activity.PermissionsActivity
+import com.navinfo.omqs.ui.activity.map.MainActivity

 /**
 * 登陆页面
@@ -16,16 +20,72 @@ class LoginActivity : PermissionsActivity() {

    private lateinit var binding: ActivityLoginBinding
    private val viewModel by viewModels<LoginViewModel>()
-
+    private var loginDialog: AlertDialog? = null
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = DataBindingUtil.setContentView(this, R.layout.activity_login)
        binding.loginUserModel = viewModel
        binding.lifecycleOwner = this
        binding.activity = this
+        initView()
    }

+    private fun initView() {
+        //登录校验，初始化成功
+        viewModel.loginStatus.observe(this) {
+            when (it) {
+                LoginStatus.LOGIN_STATUS_NET_LOADING -> {
+                    loginDialog("验证用户信息...")
+                }
+                LoginStatus.LOGIN_STATUS_FOLDER_INIT -> {
+                    loginDialog("检查本地数据...")
+                }
+                LoginStatus.LOGIN_STATUS_FOLDER_FAILURE -> {
+                    Toast.makeText(this, "文件夹初始化失败", Toast.LENGTH_SHORT).show()
+                    loginDialog?.dismiss()
+                    loginDialog = null
+                }
+                LoginStatus.LOGIN_STATUS_NET_FAILURE -> {
+                    Toast.makeText(this, "网络访问失败", Toast.LENGTH_SHORT).show()
+                    loginDialog?.dismiss()
+                    loginDialog = null
+                }
+                LoginStatus.LOGIN_STATUS_SUCCESS -> {
+                    val intent = Intent(this@LoginActivity, MainActivity::class.java)
+                    startActivity(intent)
+//                    finish()
+                    loginDialog?.dismiss()
+                    loginDialog = null
+                }
+                LoginStatus.LOGIN_STATUS_CANCEL -> {
+                    loginDialog?.dismiss()
+                    loginDialog = null
+                }
+            }
+        }
+    }
+
+    /**
+     * 登录dialog
+     */
+    private fun loginDialog(message: String) {
+        if (loginDialog == null) {
+            loginDialog = MaterialAlertDialogBuilder(
+                this, com.google.android.material.R.style.MaterialAlertDialog_Material3
+            ).setTitle("登录").setMessage(message).show()
+            loginDialog!!.setCanceledOnTouchOutside(true)
+            loginDialog!!.setOnCancelListener {
+                viewModel.cancelLogin()
+            }
+        } else {
+            loginDialog!!.setMessage(message)
+        }
+    }
+
+    //进应用根本不调用，待查
    override fun onPermissionsGranted() {
+        Log.e("jingo","调用了吗")
+
    }

    override fun onPermissionsDenied() {
@@ -35,8 +95,8 @@ class LoginActivity : PermissionsActivity() {
     * 处理登录按钮
     */
    fun onClickLoginButton() {
-        val intent = Intent(this@LoginActivity, MainActivity::class.java)
-        startActivity(intent)
-//        finish()
+        viewModel.onClickLoginBtn(
+            this, binding.loginUsername.text.toString(), binding.loginPassword.text.toString()
+        )
    }
-}
+}
--- a/app/src/main/java/com/navinfo/omqs/ui/activity/login/LoginViewModel.kt
+++ b/app/src/main/java/com/navinfo/omqs/ui/activity/login/LoginViewModel.kt
@@ -1,17 +1,65 @@
 package com.navinfo.omqs.ui.activity.login

+import android.content.Context
+import android.util.Log
 import android.view.View
+import android.widget.Toast
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.navinfo.omqs.Constant
 import com.navinfo.omqs.bean.LoginUserBean
+import kotlinx.coroutines.*
+import okio.IOException
+import java.io.File

-class LoginViewModel : ViewModel() {
+enum class LoginStatus {
+    /**
+     * 访问服务器登陆中
+     */
+    LOGIN_STATUS_NET_LOADING,
+
+    /**
+     * 初始化文件夹
+     */
+    LOGIN_STATUS_FOLDER_INIT,
+
+    /**
+     * 创建文件夹失败
+     */
+    LOGIN_STATUS_FOLDER_FAILURE,
+
+    /**
+     * 网络访问失败
+     */
+    LOGIN_STATUS_NET_FAILURE,
+
+    /**
+     * 成功
+     */
+    LOGIN_STATUS_SUCCESS,
+
+    /**
+     * 取消
+     */
+    LOGIN_STATUS_CANCEL,
+}
+
+class LoginViewModel(
+) : ViewModel() {
+    //用户信息
    val loginUser: MutableLiveData<LoginUserBean> = MutableLiveData()

+    //是不是登录成功
+    val loginStatus: MutableLiveData<LoginStatus> = MutableLiveData()
+
+    var jobLogin: Job? = null;
+
    init {
        loginUser.value = LoginUserBean(username = "admin", password = "123456")
    }

+
    /**
     * 处理注册按钮
     */
@@ -19,4 +67,82 @@ class LoginViewModel : ViewModel() {
        loginUser.value!!.username = "admin2"
        loginUser.postValue(loginUser.value)
    }
+
+    /**
+     * 点击
+     */
+    fun onClickLoginBtn(context: Context, userName: String, password: String) {
+        if (userName.isEmpty()) {
+            Toast.makeText(context, "请输入用户名", Toast.LENGTH_SHORT).show()
+        }
+        if (password.isEmpty()) {
+            Toast.makeText(context, "请输入密码", Toast.LENGTH_SHORT).show()
+        }
+        //不指定IO，会在主线程里运行
+        jobLogin = viewModelScope.launch(Dispatchers.IO) {
+            loginCheck(context, userName, password)
+            Log.e("jingo", "运行完了1？${Thread.currentThread().name}")
+        }
+    }
+
+    /**
+     * 如果不用挂起函数的方式，直接把下面这段代码替换到上面，在delay之后，线程和delay之前不是同一个，有啥影响未知。。。
+     */
+
+    private suspend fun loginCheck(context: Context, userName: String, password: String) {
+        Log.e("jingo", "我在哪个线程里？${Thread.currentThread().name}")
+        //上面调用了线程切换，这里不用调用，即使调用了还是在同一个线程中，除非自定义协程域？（待验证）
+//        withContext(Dispatchers.IO) {
+        Log.e("jingo", "delay之前？${Thread.currentThread().name}")
+        //网络访问
+        loginStatus.postValue(LoginStatus.LOGIN_STATUS_NET_LOADING)
+        //假装网络访问，等待3秒
+        delay(3000)
+        //文件夹初始化
+        try {
+            loginStatus.postValue(LoginStatus.LOGIN_STATUS_FOLDER_INIT)
+            createRootFolder(context)
+        } catch (e: IOException) {
+            loginStatus.postValue(LoginStatus.LOGIN_STATUS_FOLDER_FAILURE)
+        }
+        //假装解压文件等
+        delay(1000)
+        loginStatus.postValue(LoginStatus.LOGIN_STATUS_SUCCESS)
+        Log.e("jingo", "delay之后？${Thread.currentThread().name}")
+
+//        }
+    }
+
+
+    @Throws(IOException::class)
+    private fun createRootFolder(context: Context) {
+        // 在SD卡创建项目目录
+        val sdCardPath = context.getExternalFilesDir(null)
+        sdCardPath?.let {
+            Constant.ROOT_PATH = sdCardPath.absolutePath
+            Constant.MAP_PATH = Constant.ROOT_PATH + "/map/"
+            val file = File(Constant.MAP_PATH)
+            if (!file.exists()) {
+                file.mkdirs()
+            }
+        }
+    }
+
+    /**
+     * 取消登录
+     */
+    fun cancelLogin() {
+        Log.e("jingo", "取消了？${Thread.currentThread().name}")
+        jobLogin?.let {
+            it.cancel()
+            loginStatus.postValue(LoginStatus.LOGIN_STATUS_CANCEL)
+        }
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+        cancelLogin()
+    }
+
+
 }
--- a/app/src/main/java/com/navinfo/omqs/ui/activity/map/MainActivity.kt
+++ b/app/src/main/java/com/navinfo/omqs/ui/activity/map/MainActivity.kt
@@ -1,12 +1,14 @@
 package com.navinfo.omqs.ui.activity.map

 import android.os.Bundle
+import android.provider.ContactsContract.Contacts
 import android.util.Log
 import androidx.activity.viewModels
 import androidx.core.view.WindowCompat
 import androidx.databinding.DataBindingUtil
 import androidx.lifecycle.viewModelScope
 import com.navinfo.collect.library.map.NIMapController
+import com.navinfo.omqs.Constant
 import com.navinfo.omqs.R
 import com.navinfo.omqs.databinding.ActivityMainBinding
 import com.navinfo.omqs.ui.activity.BaseActivity
@@ -32,7 +34,12 @@ class MainActivity : BaseActivity() {

        binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
        //初始化地图
-        mapController.init(this, binding.mapView.mainActivityMap)
+        mapController.init(
+            this,
+            binding.mapView.mainActivityMap,
+            null,
+            Constant.ROOT_PATH + "/map/"
+        )
        //关联生命周期
        binding.lifecycleOwner = this
        //给xml转递对象
@@ -59,7 +66,7 @@ class MainActivity : BaseActivity() {
        super.onDestroy()
        mapController.mMapView.onDestroy()
        mapController.locationLayerHandler.stopLocation()
-        Log.e("jingo","MainActivity 销毁")
+        Log.e("jingo", "MainActivity 销毁")
    }

    override fun onResume() {