diff --git a/build.gradle b/build.gradle
index 53d5638f..4e731cc4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
   }
 
   dependencies {
-    classpath 'com.android.tools.build:gradle:2.3.2'
+    classpath 'com.android.tools.build:gradle:2.2.3'
   }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a390e815..6d5adb68 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Aug 23 22:44:32 CEST 2016
+#Sun Feb 19 00:15:41 EET 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
diff --git a/library/src/main/java/com/sothree/slidinguppanel/SlidingUpPanelLayout.java b/library/src/main/java/com/sothree/slidinguppanel/SlidingUpPanelLayout.java
index 424a008c..ffe571ed 100644
--- a/library/src/main/java/com/sothree/slidinguppanel/SlidingUpPanelLayout.java
+++ b/library/src/main/java/com/sothree/slidinguppanel/SlidingUpPanelLayout.java
@@ -641,6 +641,35 @@ public boolean isClipPanel() {
         return mClipPanel;
     }
 
+    /**
+     * Check if panel expanded or not
+     *
+     * @return true if expanded false if collapsed
+     */
+    public boolean isExpanded() {
+        return getPanelState() == PanelState.EXPANDED;
+    }
+
+    /**
+     * Expand panel
+     */
+    public void expand() {
+        setPanelState(PanelState.EXPANDED);
+    }
+
+    /**
+     * Collapse panel
+     */
+    public void collapse() {
+        setPanelState(PanelState.COLLAPSED);
+    }
+
+    /**
+     * Slide panel to anchor
+     */
+    public void slideToAnchor() {
+        setPanelState(PanelState.ANCHORED);
+    }
 
     void dispatchOnPanelSlide(View panel) {
         synchronized (mPanelSlideListeners) {