fix 修复登录活动重复创建和登录可能界面空白的问题

app/src/main/java/com/doverfuelingsolutions/issp/view/LoginActivity.kt

@@ -26,10 +26,16 @@ class LoginActivity : AppCompatActivity(),
     View.OnClickListener {
 
     companion object {
+        var isStarted = false
+            private set
+
         const val autoLogin = "autoLogin"
         const val loginMessage = "loginMessage"
 
         fun start(context: Context, extras: Bundle) {
+            if (isStarted) return
+
+            isStarted = true
             Intent(context, LoginActivity::class.java).let {
                 it.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_CLEAR_TASK)
                 it.putExtras(extras)
@@ -74,6 +80,11 @@ class LoginActivity : AppCompatActivity(),
         BuglyUtil.checkUpgrade()
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        isStarted = false
+    }
+
     override fun onClick(v: View?) {
         when (v) {
             binding.buttonLogin -> submit()

app/src/main/java/com/doverfuelingsolutions/issp/view/MainActivity.kt

@@ -81,6 +81,7 @@ class MainActivity : AppCompatActivity(),
 
         fragmentRouter.setFragmentToolbar(binding.fragmentToolbar)
         fragmentRouter.setOnRouteChangeListener(this)
+        fragmentRouter.push(FragmentReconnect.build())
 
         mLoginTokenRefresher.start(this)
     }