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diff --git a/src/io/appium/droiddriver/util/ActivityUtils.java b/src/io/appium/droiddriver/util/ActivityUtils.java
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+++ b/src/io/appium/droiddriver/util/ActivityUtils.java
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+/*
+ * Copyright (C) 2013 DroidDriver committers
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.appium.droiddriver.util;
+
+import android.app.Activity;
+
+import io.appium.droiddriver.exceptions.UnrecoverableException;
+import io.appium.droiddriver.instrumentation.InstrumentationDriver;
+
+/**
+ * Static helper methods for retrieving activities.
+ */
+public class ActivityUtils {
+  public interface Supplier<T> {
+    /**
+     * Retrieves an instance of the appropriate type. The returned object may or
+     * may not be a new instance, depending on the implementation.
+     *
+     * @return an instance of the appropriate type
+     */
+    T get();
+  }
+
+  private static Supplier<Activity> runningActivitySupplier;
+
+  /**
+   * Sets the Supplier for the running (a.k.a. resumed or foreground) activity.
+   * Called from {@link io.appium.droiddriver.runner.TestRunner}. If a
+   * custom runner is used, this method must be called appropriately, otherwise
+   * {@link #getRunningActivity} won't work.
+   */
+  public static synchronized void setRunningActivitySupplier(Supplier<Activity> activitySupplier) {
+    runningActivitySupplier = activitySupplier;
+  }
+
+  /**
+   * Gets the running (a.k.a. resumed or foreground) activity.
+   * {@link InstrumentationDriver} depends on this.
+   *
+   * @return the currently running activity, or null if no activity has focus.
+   */
+  public static synchronized Activity getRunningActivity() {
+    if (runningActivitySupplier == null) {
+      throw new UnrecoverableException("If you don't use DroidDriver TestRunner, you need to call" +
+          " ActivityUtils.setRunningActivitySupplier appropriately");
+    }
+    return runningActivitySupplier.get();
+  }
+}