Add splash screen (WIP)

app/src/main/AndroidManifest.xml

@@ -76,20 +76,20 @@
                     android:scheme="https" />
             </intent-filter>
         </activity>
+
         <activity
             android:name=".activity.LoginActivity"
             android:screenOrientation="portrait">
+        </activity>
+
+        <activity
+            android:name=".activity.SplashActivity"
+            android:screenOrientation="portrait"
+            android:theme="@style/SplashTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
-
-            <intent-filter>
-                <action android:name="HANDLE_AUTHORIZATION_RESPONSE" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
-
         </activity>
 
         <service android:name=".InstiAppFirebaseMessagingService">

app/src/main/java/app/insti/activity/SplashActivity.java

+package app.insti.activity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+
+import app.insti.SessionManager;
+
+public class SplashActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        SessionManager session = new SessionManager(this);
+        Intent intent;
+
+        /* Skip inflating login activity if logged in */
+        if (session.isLoggedIn()) {
+            intent = new Intent(this, MainActivity.class);
+        } else {
+            intent = new Intent(this, LoginActivity.class);
+        }
+
+        startActivity(intent);
+        finish();
+    }
+}

app/src/main/res/drawable/background.xml

+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:drawable="@color/colorPrimary" />
+
+    <item>
+        <bitmap android:src="@drawable/lotus_sq"
+            android:gravity="center" />
+
+    </item>
+
+</layer-list>
\ No newline at end of file

app/src/main/res/values/styles.xml

@@ -18,6 +18,10 @@
         <item name="windowNoTitle">true</item>
     </style>
 
+    <style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
+        <item name="android:windowBackground">@drawable/background</item>
+    </style>
+
     <style name="AppThemeDark" parent="Theme.AppCompat">
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>