add launch background

app/src/main/AndroidManifest.xml

@@ -22,7 +22,7 @@
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".ui.LaunchActivity">
+        <activity android:name=".ui.LaunchActivity" android:theme="@style/Theme.AppCompat.NoActionBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/org/houxg/leamonax/ui/LaunchActivity.java

@@ -3,7 +3,11 @@ package org.houxg.leamonax.ui;
 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
+import android.os.Handler;
+import android.view.Window;
+import android.view.WindowManager;
 
+import org.houxg.leamonax.R;
 import org.houxg.leamonax.model.Account;
 import org.houxg.leamonax.network.ApiProvider;
 import org.houxg.leamonax.service.AccountService;
@@ -13,7 +17,10 @@ public class LaunchActivity extends Activity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        Intent intent;
+        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
+                WindowManager.LayoutParams.FLAG_FULLSCREEN);
+        setContentView(R.layout.activity_launch);
+        final Intent intent;
         if (AccountService.isSignedIn()) {
             Account account = Account.getCurrent();
             ApiProvider.getInstance().init(account.getHost());
@@ -22,7 +29,12 @@ public class LaunchActivity extends Activity {
             intent = new Intent(this, SignInActivity.class);
         }
         intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
-        startActivity(intent);
-        finish();
+        new Handler().postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                startActivity(intent);
+                finish();
+            }
+        }, 3000);
     }
 }

app/src/main/res/layout/activity_launch.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/colorPrimary"
+    android:orientation="vertical">
+
+    <ImageView
+        android:layout_width="200dp"
+        android:layout_height="200dp"
+        android:layout_centerInParent="true"
+        android:src="@mipmap/ic_launcher" />
+
+</RelativeLayout>