diff --git a/.idea/misc.xml b/.idea/misc.xml
index f8a7968..239eb59 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/slidingdrawer/src/main/java/com/pierfrancescosoffritti/slidingdrawer/SlidingDrawer.java b/slidingdrawer/src/main/java/com/pierfrancescosoffritti/slidingdrawer/SlidingDrawer.java
index f0af835..112ed73 100644
--- a/slidingdrawer/src/main/java/com/pierfrancescosoffritti/slidingdrawer/SlidingDrawer.java
+++ b/slidingdrawer/src/main/java/com/pierfrancescosoffritti/slidingdrawer/SlidingDrawer.java
@@ -63,7 +63,10 @@ public class SlidingDrawer extends LinearLayout {
     private final int touchSlop = viewConfiguration.getScaledTouchSlop();
 
     // view that will slide
-    private View slidableView;
+    private @NonNull View slidableView;
+
+    // view that won't slide
+    private @NonNull View nonSlidableView;
 
     // current slide value, between 1.0 and 0.0 (1.0 = EXPANDED, 0.0 = COLLAPSED)
     private float currentSlide;
@@ -75,7 +78,7 @@ public class SlidingDrawer extends LinearLayout {
     private final static int mCoveredFadeColor = 0x99000000;
 
     // max value by which sliding view can slide.
-    private int maxSlide;
+//    private int maxSlide;
     private final int minSlide = 0;
 
     // duration of the slide in milliseconds, when executed automatically
@@ -190,6 +193,8 @@ public boolean onInterceptTouchEvent(MotionEvent event) {
     public boolean onTouchEvent(MotionEvent event) {
         float eventY = event.getY();
 
+        final float maxSlide = nonSlidableView.getHeight();
+
         switch (event.getAction()) {
             case MotionEvent.ACTION_UP:
                 // complete the slide if it's not completed yet.
@@ -217,6 +222,8 @@ else if(eventY + dY < minSlide)
     }
 
     private void completeSlide(float currentSlide, @SlidingDirection int direction) {
+        final float maxSlide = nonSlidableView.getHeight();
+
         float finalY = -1;
 
         switch (direction) {
@@ -248,6 +255,8 @@ else if(currentSlide == 0)
     }
 
     private float normalizeSlide(float currentY) {
+        final float maxSlide = nonSlidableView.getHeight();
+
         // currentSlide_Normalized : x = 1 : maxSliding
         return Math.abs(currentY - maxSlide) / maxSlide;
     }
@@ -257,6 +266,8 @@ private float normalizeSlide(float currentY) {
      * @param newPositionNormalized new view position, normalized
      */
     private void updateSliding(float newPositionNormalized) {
+        final float maxSlide = nonSlidableView.getHeight();
+
         currentSlide = newPositionNormalized;
 
         state = currentSlide == 1 ? EXPANDED : currentSlide == 0 ? COLLAPSED : SLIDING;
@@ -318,7 +329,7 @@ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
     private void initSlidingChild() {
         slidableView = findViewById(R.id.slidable_view);
 
-        maxSlide = findViewById(R.id.non_slidable_view).getHeight();
+        nonSlidableView = findViewById(R.id.non_slidable_view);
 
         // the collapsed view is the view shown when the slidableView is collapsed.
         // it's important to add padding to its bottom, otherwise some content will be offscreen-
@@ -332,10 +343,12 @@ private void initSlidingChild() {
      * @param root the view that needs padding
      */
     private void addPadding(View root) {
+        final float maxSlide = nonSlidableView.getHeight();
+
         int top = root.getPaddingTop();
         int left = root.getPaddingLeft();
         int right = root.getPaddingRight();
-        int bottom = maxSlide;
+        int bottom = (int) maxSlide;
 
         root.setPadding(left, top, right, bottom);
     }