Prewarm customTabs

app/src/main/java/com/github/dfa/diaspora_android/activity/MainActivity.java

@@ -42,6 +42,8 @@ import android.os.Handler;
 import android.os.StrictMode;
 import android.provider.MediaStore;
 import android.support.annotation.NonNull;
+import android.support.customtabs.CustomTabsClient;
+import android.support.customtabs.CustomTabsSession;
 import android.support.design.widget.AppBarLayout;
 import android.support.design.widget.NavigationView;
 import android.support.design.widget.Snackbar;
@@ -107,7 +109,7 @@ import info.guardianproject.netcipher.NetCipher;
 import info.guardianproject.netcipher.webkit.WebkitProxy;
 
 public class MainActivity extends AppCompatActivity
-        implements NavigationView.OnNavigationItemSelectedListener, WebUserProfileChangedListener {
+        implements NavigationView.OnNavigationItemSelectedListener, WebUserProfileChangedListener, CustomTabActivityHelper.ConnectionCallback {
 
 
     private static final int INPUT_FILE_REQUEST_CODE_NEW = 1;
@@ -141,6 +143,7 @@ public class MainActivity extends AppCompatActivity
     private Snackbar snackbarExitApp;
     private Snackbar snackbarNoInternet;
     private String textToBeShared = null;
+    private CustomTabsSession customTabsSession;
 
     /**
      * UI Bindings
@@ -196,6 +199,7 @@ public class MainActivity extends AppCompatActivity
         podUserProfile.setListener(this);
         urls = new DiasporaUrlHelper(appSettings);
         customTabActivityHelper = new CustomTabActivityHelper();
+        customTabActivityHelper.setConnectionCallback(this);
 
         setupUI(savedInstanceState);
 
@@ -1079,6 +1083,19 @@ public class MainActivity extends AppCompatActivity
         invalidateOptionsMenu();
     }
 
+    @Override
+    public void onCustomTabsConnected() {
+        if(customTabsSession == null) {
+            AppLog.i(this, "CustomTabs warmup: "+customTabActivityHelper.warmup(0));
+            customTabsSession = customTabActivityHelper.getSession();
+        }
+    }
+
+    @Override
+    public void onCustomTabsDisconnected() {
+
+    }
+
     private class JavaScriptInterface {
         @JavascriptInterface
         public void setUserProfile(final String webMessage) throws JSONException {

app/src/main/java/com/github/dfa/diaspora_android/util/CustomTabHelpers/CustomTabActivityHelper.java

@@ -118,6 +118,10 @@ public class CustomTabActivityHelper {
         return session.mayLaunchUrl(uri, extras, otherLikelyBundles);
     }
 
+    public boolean warmup(int flags) {
+        return mClient.warmup(flags);
+    }
+
     /**
      * A Callback for when the service is connected or disconnected. Use those callbacks to
      * handle UI changes when the service is connected or disconnected

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.3'
+        classpath 'com.android.tools.build:gradle:2.2.0'
         classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
 
         // NOTE: Do not place your application dependencies here; they belong