diff --git a/library/src/main/java/com/github/aakira/expandablelayout/ExpandableLinearLayout.java b/library/src/main/java/com/github/aakira/expandablelayout/ExpandableLinearLayout.java
index 9320045..810f856 100644
--- a/library/src/main/java/com/github/aakira/expandablelayout/ExpandableLinearLayout.java
+++ b/library/src/main/java/com/github/aakira/expandablelayout/ExpandableLinearLayout.java
@@ -216,7 +216,7 @@ public void toggle(final long duration, final @Nullable TimeInterpolator interpo
      */
     @Override
     public void expand() {
-        if (isAnimating) return;
+        if (isAnimating || isExpanded()) return;
 
         createExpandAnimator(getCurrentPosition(), layoutSize, duration, interpolator).start();
     }
@@ -226,7 +226,7 @@ public void expand() {
      */
     @Override
     public void expand(final long duration, final @Nullable TimeInterpolator interpolator) {
-        if (isAnimating) return;
+        if (isAnimating || isExpanded()) return;
 
         if (duration <= 0) {
             move(layoutSize, duration, interpolator);
@@ -240,7 +240,7 @@ public void expand(final long duration, final @Nullable TimeInterpolator interpo
      */
     @Override
     public void collapse() {
-        if (isAnimating) return;
+        if (isAnimating || !isExpanded()) return;
 
         createExpandAnimator(getCurrentPosition(), closePosition, duration, interpolator).start();
     }
@@ -250,7 +250,7 @@ public void collapse() {
      */
     @Override
     public void collapse(final long duration, final @Nullable TimeInterpolator interpolator) {
-        if (isAnimating) return;
+        if (isAnimating || !isExpanded()) return;
 
         if (duration <= 0) {
             move(closePosition, duration, interpolator);
diff --git a/library/src/main/java/com/github/aakira/expandablelayout/ExpandableRelativeLayout.java b/library/src/main/java/com/github/aakira/expandablelayout/ExpandableRelativeLayout.java
index 0678905..28bcd07 100644
--- a/library/src/main/java/com/github/aakira/expandablelayout/ExpandableRelativeLayout.java
+++ b/library/src/main/java/com/github/aakira/expandablelayout/ExpandableRelativeLayout.java
@@ -225,7 +225,7 @@ public void toggle(final long duration, final @Nullable TimeInterpolator interpo
      */
     @Override
     public void expand() {
-        if (isAnimating) return;
+        if (isAnimating || isExpanded()) return;
 
         createExpandAnimator(getCurrentPosition(), layoutSize, duration, interpolator).start();
     }
@@ -235,7 +235,7 @@ public void expand() {
      */
     @Override
     public void expand(final long duration, final @Nullable TimeInterpolator interpolator) {
-        if (isAnimating) return;
+        if (isAnimating || isExpanded()) return;
 
         if (duration <= 0) {
             move(layoutSize, duration, interpolator);
@@ -249,7 +249,7 @@ public void expand(final long duration, final @Nullable TimeInterpolator interpo
      */
     @Override
     public void collapse() {
-        if (isAnimating) return;
+        if (isAnimating || !isExpanded()) return;
 
         createExpandAnimator(getCurrentPosition(), closePosition, duration, interpolator).start();
     }
@@ -259,7 +259,7 @@ public void collapse() {
      */
     @Override
     public void collapse(final long duration, final @Nullable TimeInterpolator interpolator) {
-        if (isAnimating) return;
+        if (isAnimating || !isExpanded()) return;
 
         if (duration <= 0) {
             move(closePosition, duration, interpolator);
diff --git a/library/src/main/java/com/github/aakira/expandablelayout/ExpandableWeightLayout.java b/library/src/main/java/com/github/aakira/expandablelayout/ExpandableWeightLayout.java
index 49526c9..5c03696 100644
--- a/library/src/main/java/com/github/aakira/expandablelayout/ExpandableWeightLayout.java
+++ b/library/src/main/java/com/github/aakira/expandablelayout/ExpandableWeightLayout.java
@@ -147,7 +147,7 @@ public void toggle(final long duration, @Nullable final TimeInterpolator interpo
      */
     @Override
     public void expand() {
-        if (isAnimating) return;
+        if (isAnimating || isExpanded()) return;
 
         createExpandAnimator(0, layoutWeight, duration, interpolator).start();
     }
@@ -157,7 +157,7 @@ public void expand() {
      */
     @Override
     public void expand(final long duration, @Nullable final TimeInterpolator interpolator) {
-        if (isAnimating) return;
+        if (isAnimating || isExpanded()) return;
 
         if (duration <= 0) {
             isExpanded = true;
@@ -174,7 +174,7 @@ public void expand(final long duration, @Nullable final TimeInterpolator interpo
      */
     @Override
     public void collapse() {
-        if (isAnimating) return;
+        if (isAnimating || !isExpanded()) return;
 
         createExpandAnimator(getCurrentWeight(), 0, duration, interpolator).start();
     }
@@ -184,7 +184,7 @@ public void collapse() {
      */
     @Override
     public void collapse(final long duration, @Nullable final TimeInterpolator interpolator) {
-        if (isAnimating) return;
+        if (isAnimating || !isExpanded()) return;
 
         if (duration <= 0) {
             isExpanded = false;