diff --git a/codeinputlib/src/main/java/com/github/glomadrian/codeinputlib/CodeInput.java b/codeinputlib/src/main/java/com/github/glomadrian/codeinputlib/CodeInput.java
index 164a42a..5b8f9e9 100644
--- a/codeinputlib/src/main/java/com/github/glomadrian/codeinputlib/CodeInput.java
+++ b/codeinputlib/src/main/java/com/github/glomadrian/codeinputlib/CodeInput.java
@@ -233,6 +233,7 @@ private void reverseAnimation() {
   @Override public boolean onKeyDown(int keyCode, KeyEvent keyevent) {
     if (keyCode == KeyEvent.KEYCODE_DEL && characters.size() != 0) {
       characters.pop();
+      invalidate();
     }
     return super.onKeyDown(keyCode, keyevent);
   }
@@ -246,6 +247,7 @@ private void reverseAnimation() {
     if (matcher.matches()) {
       char character = matcher.group(1).charAt(0);
       characters.push(character);
+      invalidate();
       if (characters.size() >=underlineAmount){
         if(listener!=null) {
           listener.onCodeReady(getCode());
@@ -287,7 +289,6 @@ private void reverseAnimation() {
     if (hintText != null) {
       drawHint(canvas);
     }
-    invalidate();
   }
 
   private void drawSection(int position, float fromX, float fromY, float toX, float toY,
@@ -320,8 +321,8 @@ public Character[] getCode() {
   private class ReductionAnimatorListener implements ValueAnimator.AnimatorUpdateListener {
 
     public void onAnimationUpdate(ValueAnimator valueanimator) {
-      float value = ((Float) valueanimator.getAnimatedValue()).floatValue();
-      reduction = value;
+      reduction = (float) valueanimator.getAnimatedValue();
+      invalidate();
     }
   }
 
@@ -332,6 +333,7 @@ private class HintYAnimatorListener implements ValueAnimator.AnimatorUpdateListe
 
     @Override public void onAnimationUpdate(ValueAnimator animation) {
       hintActualMarginBottom = (float) animation.getAnimatedValue();
+      invalidate();
     }
   }
 
@@ -343,6 +345,7 @@ private class HintSizeAnimatorListener implements ValueAnimator.AnimatorUpdateLi
     @Override public void onAnimationUpdate(ValueAnimator animation) {
       float size = (float) animation.getAnimatedValue();
       hintPaint.setTextSize(size);
+      invalidate();
     }
   }
 }