checks the viewmap is ready to use . concode_field_sep ParallaxDrawable parallaxDrawablePointer concode_elem_sep T mWrapped concode_elem_sep Iterator<View> iteratorPointer concode_elem_sep String TAG concode_elem_sep OnScrollChangedListener mScrollChangedListener concode_elem_sep WeakHashMap<View,ParallaxDrawable> mParallaxDrawableMap concode_elem_sep WeakHashMap<View,ParallaxViewInfo> mViewHashMap concode_elem_sep ParallaxViewInfo parallaxInfoPointer concode_elem_sep View viewPointer concode_elem_sep Set<View> keySetPointer concode_elem_sep boolean mIgnoreOnScrollListener concode_elem_sep int mLastScrollX concode_elem_sep int mLastScrollY concode_field_sep void doScrollViews concode_elem_sep void checkBackgroundMap concode_elem_sep void parallaxViewBy concode_elem_sep void parallaxViewBy concode_elem_sep void doScrollChanged concode_elem_sep void setOnScrollListener concode_elem_sep void doScrollListener concode_elem_sep void parallaxViewBackgroundBy concode_elem_sep void doScrollBackground concode_elem_sep void onScrollChanged concode_elem_sep void onScrollChanged concode_elem_sep T getWrapped
void function ( ) { if ( mViewHashMap == null ) mViewHashMap = new WeakHashMap < View , ParallaxViewInfo > ( ) ; }