Fixes #246: Disable auto showing up the soft keyboard in login activity

Author: saketkumar

app/src/main/AndroidManifest.xml

@@ -44,8 +44,7 @@
         </activity>
         <activity
             android:name=".activities.LoginActivity"
-            android:label="@string/app_name"
-            android:windowSoftInputMode="stateHidden" >
+            android:label="@string/app_name" >
         </activity>
         <activity
             android:name=".activities.LegalActivity"

app/src/main/java/com/zulip/android/activities/LoginActivity.java

@@ -1,6 +1,7 @@
 package com.zulip.android.activities;
 
 import android.app.ProgressDialog;
+import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentSender.SendIntentException;
@@ -13,6 +14,7 @@
 import android.util.Log;
 import android.util.Patterns;
 import android.view.View;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.Toast;
@@ -221,6 +223,12 @@ private void showBackends(String httpScheme, String serverURL) {
 
                     @Override
                     public void onSuccess(Call<ZulipBackendResponse> call, Response<ZulipBackendResponse> response) {
+                        View view = LoginActivity.this.getCurrentFocus();
+                        if (view != null) {
+                            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+                            imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+                        }
+
                         if (response.body().isPassword()) {
                             findViewById(R.id.passwordAuthLayout).setVisibility(View.VISIBLE);
                         }