further uncluttering MainActivity

Author: xtools-at

app/src/main/java/at/xtools/pwawrapper/MainActivity.java

@@ -2,43 +2,43 @@
 
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
-import android.webkit.WebView;
 
 import at.xtools.pwawrapper.ui.UIManager;
 import at.xtools.pwawrapper.webview.WebViewHelper;
 
 public class MainActivity extends AppCompatActivity {
     // Globals
-    private WebView webView;
     private UIManager uiManager;
     private WebViewHelper webViewHelper;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        // Setup Theme
         setTheme(R.style.AppTheme_NoActionBar);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        // Setup App
-        webView = (WebView) this.findViewById(R.id.webView);
+        // Setup Helpers
         uiManager = new UIManager(this);
         webViewHelper = new WebViewHelper(this, uiManager);
+
+        // Setup App
         webViewHelper.setupWebView();
         uiManager.changeRecentAppsIcon();
 
-        // load up the Web App
-        webView.loadUrl(Constants.WEBAPP_URL);
+        // Load up the Web App
+        webViewHelper.loadHome();
     }
 
     @Override
     protected void onPause() {
-        webView.onPause();
+        webViewHelper.onPause();
         super.onPause();
     }
 
     @Override
     protected void onResume() {
-        webView.onResume();
+        webViewHelper.onResume();
         // retrieve content from cache primarily if not connected,
         // fetch from web otherwise to get updates.
         webViewHelper.useCache(
@@ -50,9 +50,7 @@ protected void onResume() {
     // Handle back-press in browser
     @Override
     public void onBackPressed() {
-        if (webView.canGoBack()) {
-            webView.goBack();
-        } else {
+        if (!webViewHelper.goBack()) {
             super.onBackPressed();
         }
     }

app/src/main/java/at/xtools/pwawrapper/webview/WebViewHelper.java

@@ -162,4 +162,24 @@ public void onReceivedError(WebView view, WebResourceRequest request, WebResourc
             }
         });
     }
+
+    public void onPause() {
+        webView.onPause();
+    }
+
+    public void onResume() {
+        webView.onResume();
+    }
+
+    public boolean goBack() {
+        if (webView.canGoBack()) {
+            webView.goBack();
+            return true;
+        }
+        return false;
+    }
+
+    public void loadHome() {
+        webView.loadUrl(Constants.WEBAPP_URL);
+    }
 }