opt: async login (#36)

app/build.gradle

@@ -74,4 +74,5 @@ dependencies {
     implementation 'com.liaoinstan.springview:library:1.7.0'
     implementation 'com.github.zawadz88.materialpopupmenu:material-popup-menu:4.0.1'
     implementation 'com.lapism:search:2.4.1@aar'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.6.1'
 }

app/src/main/java/top/fumiama/copymanga/LoginActivity.kt

@@ -1,18 +1,19 @@
 package top.fumiama.copymanga
 
-import android.app.Activity
 import android.os.Bundle
 import android.util.Log
 import android.widget.Toast
-import com.google.gson.Gson
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.lifecycleScope
 import kotlinx.android.synthetic.main.activity_login.*
-import top.fumiama.copymanga.json.LoginInfoStructure
+import kotlinx.coroutines.Dispatchers
-import top.fumiama.copymanga.tools.api.CMApi
+import kotlinx.coroutines.launch
-import top.fumiama.copymanga.tools.http.DownloadTools
+import kotlinx.coroutines.withContext
 import top.fumiama.dmzj.copymanga.R
 import kotlin.random.Random
 
-class LoginActivity:Activity() {
+
+class LoginActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_login)
@@ -22,36 +23,41 @@ class LoginActivity:Activity() {
             alblogin.setText(R.string.logout)
         }
         alblogin.setOnClickListener {
+            lifecycleScope.launch {
                 val salt = Random.nextInt(10000)
                 val username = altusrnm.text?.toString() ?: run {
-                    Toast.makeText(this, R.string.login_null_username, Toast.LENGTH_SHORT).show()
+                    Toast.makeText(
-                    return@setOnClickListener
+                        this@LoginActivity,
+                        R.string.login_null_username,
+                        Toast.LENGTH_SHORT
+                    ).show()
+                    return@launch
                 }
                 val pwd = altpwd.text?.toString() ?: run {
-                Toast.makeText(this, R.string.login_null_pwd, Toast.LENGTH_SHORT).show()
+                    Toast.makeText(this@LoginActivity, R.string.login_null_pwd, Toast.LENGTH_SHORT)
-                return@setOnClickListener
+                        .show()
+                    return@launch
                 }
-            Thread {
                 if (isLogout) {
                     MainActivity.member?.logout()
-                    runOnUiThread {
                     MainActivity.mainWeakReference?.get()?.refreshUserInfo()
-                        Toast.makeText(this@LoginActivity, R.string.login_restart_to_apply, Toast.LENGTH_SHORT).show()
+                    Toast.makeText(
+                        this@LoginActivity,
+                        R.string.login_restart_to_apply,
+                        Toast.LENGTH_SHORT
+                    ).show()
                     finish()
-                    }
+                    return@launch
-                    return@Thread
                 }
                 val l = MainActivity.member?.login(username, pwd, salt)
                 Log.d("MyLA", "login return code: ${l?.code}")
                 if (l?.code == 200) {
-                    runOnUiThread {
                     MainActivity.mainWeakReference?.get()?.refreshUserInfo()
                     finish()
+                    return@launch
                 }
-                    return@Thread
+                Toast.makeText(this@LoginActivity, l?.message, Toast.LENGTH_SHORT).show()
             }
-                runOnUiThread { Toast.makeText(this@LoginActivity, l?.message, Toast.LENGTH_SHORT).show() }
-            }.start()
         }
     }
 }

app/src/main/java/top/fumiama/copymanga/user/Member.kt

@@ -3,6 +3,9 @@ package top.fumiama.copymanga.user
 import android.content.SharedPreferences
 import android.widget.Toast
 import com.google.gson.Gson
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.withContext
 import top.fumiama.copymanga.MainActivity
 import top.fumiama.copymanga.json.LoginInfoStructure
 import top.fumiama.copymanga.tools.api.CMApi
@@ -11,7 +14,7 @@ import top.fumiama.dmzj.copymanga.R
 
 class Member(private val pref: SharedPreferences, private val getString: (Int) -> String) {
     val hasLogin: Boolean get() = pref.getString("token", "")?.isNotEmpty()?:false
-    fun login(username: String, pwd: String, salt: Int): LoginInfoStructure {
+    suspend fun login(username: String, pwd: String, salt: Int): LoginInfoStructure  = withContext(Dispatchers.IO) {
         try {
             CMApi.getLoginConnection(username, pwd, salt)?.apply {
                 Gson().fromJson(inputStream.reader(), LoginInfoStructure::class.java)?.let { data ->
@@ -23,24 +26,26 @@ class Member(private val pref: SharedPreferences, private val getString: (Int) -
                             putString("username", data.results?.username)
                             putString("nickname", data.results?.nickname)
                             apply()
-                            return refreshAvatar()
+                            return@withContext refreshAvatar()
                         }
                     }
-                    return data
+                    return@withContext data
                 }
             }
             val l = LoginInfoStructure()
             l.code = 400
             l.message =  getString(R.string.login_get_conn_failed)
-            return l
+            return@withContext l
         } catch (e: Exception) {
             val l = LoginInfoStructure()
             l.code = 400
             l.message = e.localizedMessage
-            return l
+            return@withContext l
         }
     }
 
+
+
     fun refreshAvatar() : LoginInfoStructure {
         try {
             DownloadTools.getHttpContent(getString(R.string.memberInfoApiUrl).format(