:Fixed NullPointerException that occured because params was never set…

… to new value after check

.gitignore

@@ -21,4 +21,5 @@ Screenshots
 *.iml
 target/
 gen-external-apklibs/
-
+build/
+.gradle/

Library/build.gradle

@@ -0,0 +1,28 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:0.5.+'
+    }
+}
+apply plugin: 'android-library'
+
+android {
+    compileSdkVersion 18
+    buildToolsVersion "18.0.1"
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = ['src']
+            resources.srcDirs = ['src']
+            aidl.srcDirs = ['src']
+            renderscript.srcDirs = ['src']
+            res.srcDirs = ['res']
+            assets.srcDirs = ['assets']
+        }
+
+        instrumentTest.setRoot('tests')
+    }
+}

Library/src/com/tonicartos/widget/stickygridheaders/StickyGridHeadersBaseAdapterWrapper.java

@@ -421,7 +421,8 @@ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
             View v = (View)getTag();
             android.view.ViewGroup.LayoutParams params = v.getLayoutParams();
             if (params == null) {
-                v.setLayoutParams(generateDefaultLayoutParams());
+                params = generateDefaultLayoutParams();
+                v.setLayoutParams(params);
             }
             if (v.getVisibility() != View.GONE) {
                 int heightSpec = getChildMeasureSpec(