Custom Load More Recycleview

Custom Load More Recycleview

<span style= "FONT-SIZE:18PX;"    >public class Loadingrecyclerview extends Recyclerview {static final String TAG = "Loadingrecyclerview";    Private Loadingmorelistener Mmorelistener; private static final int NONE = 0;//idle state private static final int LOADING = 1;//load state private static final int Loadin    G_error = 2;//Load state private static final int no_more_data = 3;//No more data private static final Boolean DEBUG = false;        private int mstate = 0;//load state public Loadingrecyclerview (context context) {super (context);    Init ();        } public Loadingrecyclerview (context context, AttributeSet Attrs) {Super (context, attrs);    Init (); } public Loadingrecyclerview (context context, AttributeSet attrs, int defstyle) {Super (context, Attrs, Defstyle        );    Init ();  } private void Init () {Addonscrolllistener (new Onscrolllistener () {@Override public void Onscrollstatechanged (Recyclerview recyclerview, int NewstATE) {super.onscrollstatechanged (Recyclerview, newstate); if (newstate = = scroll_state_dragging) {if (!isloading () && canscroolloadingmore () && m                    state = = Loading_error) {reloading (); }}} @Override public void onscrolled (recyclerview recyclerview, int dx,                int dy) {super.onscrolled (recyclerview, DX, dy); if (islastpositionvisible () &&!isloading () && Canscroolloadingmore ()) {//turns to last, and the current status is not                    For loading, load if (DEBUG) {LOG.E (TAG, "turned to last");                } reloading ();    }            }        }); }/** * Can load more * * @return */Private Boolean canscroolloadingmore () {if (mstate = = Loadin G_error | |        Mstate = = No_more_data) {return false; } return true;    }/** * Load complete */public void Onloadingcomplete () {mstate = NONE;        /** * Load Failed * * @return */public void Onloadingerror () {mstate = Loading_error;    Getloadingmoreadapter (). Loadingerror ();                 }/** * Reload * * public void reloading () {if (!isloading ()) {if (Mmorelistener! = null) {                Mstate = LOADING;                Getloadingmoreadapter (). Resetloadingmore ();            if (Mmorelistener! = null) Mmorelistener.onloadingmore (); }}}/** * Reset load in Layout */public void Resetloadingview () {getloadingmoreadapter (). Resetloadin    Gmore (); }/** * No more data * * @return */public void Nomoredata () {getloadingmoreadapter (). Nomoredata (    );    } public Loadingmoreadapter Getloadingmoreadapter () {return (Loadingmoreadapter) getadapter (); } public Loadingmoreadapter.loadingmoreholder GetlOadingmoreholder () {//Get the item to be updated with view view view = Getchildat (Getchildcount ()-1);         if (null! = Getchildviewholder (view)) {return (Loadingmoreadapter.loadingmoreholder) getchildviewholder (view);    } return null;        } public boolean islastpositionvisible () {int itemCount = Getadapter (). GetItemCount ();    return ItemCount = = Getlastvisibleposition () + 1; }/** * Sets if there are more data markers * * @param isnomore */public void Setnomoredata (Boolean isnomore) {if (Isnomore)            {mstate = No_more_data;        Nomoredata ();        } else {mstate = NONE;     }}/** * is loaded in:    * * @return */public boolean isloading () {return mstate = = LOADING;        }/** * Gets the position of the last display * * @return */private int getlastvisibleposition () {int position; if (Getlayoutmanager () instanceof Linearlayoutmanager) {position = ((linearlayouTmanager) Getlayoutmanager ()). Findlastvisibleitemposition (); } else if (Getlayoutmanager () instanceof Gridlayoutmanager) {position = ((Gridlayoutmanager) Getlayoutmanager (        ). Findlastvisibleitemposition ();  } else if (Getlayoutmanager () instanceof Staggeredgridlayoutmanager) {Staggeredgridlayoutmanager LayoutManager            = (Staggeredgridlayoutmanager) Getlayoutmanager ();            int[] lastpositions = layoutmanager.findlastvisibleitempositions (New Int[layoutmanager.getspancount ());        Position = Getmaxposition (lastpositions);        } else {position = Getlayoutmanager (). GetItemCount ()-1;        } if (DEBUG) {log.e (TAG, Position + "");    } return position;        }/** * Get the maximum position * * @param positions * @return */private int getmaxposition (int[] positions) {        int size = Positions.length;        int maxposition = Integer.min_value;  for (int i = 0; i < size; i++) {          Maxposition = Math.max (maxposition, positions[i]);    } return maxposition;    } public void Setloadingmorelistener (Loadingmorelistener listener) {Mmorelistener = listener;    } public interface Loadingmorelistener {public void Onloadingmore (); }}</span>

load More Recycleviewadapter

<span style= "FONT-SIZE:24PX;"    >public abstract class Loadingmoreadapter<t> extends Recyclerview.adapter {private list<t> List;    public static final int ITEM = 0, Loading_more = 1, No_more_data = 2, loading_error = 3;    public int mstate = Loading_more;    protected context context;        Public Loadingmoreadapter (context context, list<t> List) {this.context = context;    This.list = list; } @Override public int getitemviewtype (int position) {if (position = = List.size ()) {return Mstat        E    } return ITEM; } @Override Public Recyclerview.viewholder oncreateviewholder (viewgroup parent, int viewtype) {switch (VIEWT ype) {case Loading_more://Load more return new Loadingmoreholder (Layoutinflater.from            (context). Inflate (R.layout.layout_loading_more, parent, false)); Case No_more_data://No more data Loadingmoreholder NomoredataholDer = new Loadingmoreholder (Layoutinflater.from (context). Inflate (R.layout.layout_loading_more, parent, false));                Nomoredataholder.settext ("No more Data");                Nomoredataholder.visibleprogressbar (FALSE);            return nomoredataholder; Case LOADING_ERROR://Load Error Loadingmoreholder Errorholder = new Loadingmoreholder (layoutinfla                Ter.from (context). Inflate (R.layout.layout_loading_more, parent, false));                Errorholder.settext ("Load failed, click Reload");                Errorholder.visibleprogressbar (FALSE);            return errorholder;        Case Item:return Getitemholder ();    } return null; } @Override public void Onbindviewholder (final recyclerview.viewholder holder, int position) {if (position =                = List.size ()) {//Load more Holder.itemView.setOnClickListener (new View.onclicklistener () { @Override public void OnClick (View V{if (holder.itemView.getParent () instanceof Loadingrecyclerview) {if (mstate = = Loading_error) {Loadingrecyclerview Recyclerview = (loadingrecyclerview) holder.itemview.g                            Etparent ();                        Recyclerview.reloading ();        }                    }                }            });        } else {Setitemholder (holder, position);    }} @Override public int getitemcount () {//+1 = load more layouts return list = = null? 0:list.size () + 1;        }/** * No more data */public void Nomoredata () {mstate = No_more_data;    Notifydatasetchanged ();        /** * Load Data * @return */public void Resetloadingmore () {mstate = Loading_more;    Notifydatasetchanged ();        /** * Load Data * @return */public void Loadingerror () {mstate = Loading_error;    Notifydatasetchanged (); } public Abstract Recyclerview.viewholder Getitemholder ();    public abstract void Setitemholder (recyclerview.viewholder holder, int position);        /** * Loading in Layout */class Loadingmoreholder extends Recyclerview.viewholder {TextView tv_text;        ProgressBar Progress_bar;            Public Loadingmoreholder (View Itemview) {super (Itemview);            Tv_text = (TextView) Itemview.findviewbyid (R.id.tv_text);        Progress_bar = (ProgressBar) Itemview.findviewbyid (R.id.progress_bar);        } public void SetText (String msg) {tv_text.settext (msg); } public void Visibleprogressbar (Boolean isVisible) {if (isVisible) {PROGRESS_BAR.SETVI            Sibility (view.visible);            } else {progress_bar.setvisibility (view.gone); }}}}</span>

Custom Load More Recycleview