Android Recyclerview Click, long-press event: Based on the Onitemtouchlistener +gesturedetector standard Implementation (ii), encapsulation is extracted into a generic tool class

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Android Recyclerview Click, long-press event: Based on the Onitemtouchlistener +gesturedetector standard Implementation (ii), encapsulation is extracted into a generic tool class

I wrote the appendix in article 2, which describes how Android can implement click-and-hold events based on the Onitemtouchlistener +gesturedetector, since today Recyclerview is so prevalent in Android development, And Recyclerview Click events are so common, if you write a bunch of event listeners like in Appendix 2 to the Business logic code, how many times do you write the code? So I took the listener of adding a click event to Recyclerview and encapsulated it into a common toolbar class recyclerviewutil.
When adding a click event to a Recyclerview, just like the ListView event, simply write the following code:

The first step is to initialize the Recyclerviewutil, pass in the current Recyclerview object and the context pointer this:context        recyclerviewutil util=new recyclerviewutil ( This,mrecyclerview);        The second step, the direct set        Util.setonitemclicklistener (new Recyclerviewutil.onitemclicklistener () {            @Override            public void Onitemclick (int position, view view) {                //toast.maketext (Getapplicationcontext (), position+ "click", Toast.length_short). Show ();            }        });

Long-press events are similar:

First initialize the Recyclerviewutil, pass in the current Recyclerview object and the context pointer this:context        recyclerviewutil util=new recyclerviewutil (this , Mrecyclerview);        Util.setonitemlongclicklistener (New Recyclerviewutil.onitemlongclicklistener () {            @Override public            Void Onitemlongclick (int position, view view) {                //toast.maketext (Getapplicationcontext (), position+ "Long Press", Toast.length _short). Show ();            }        });

Encapsulated, well-extracted universal Recyclerviewutil.java all code:

Package Zhangphil.app;import Android.content.context;import Android.support.v7.widget.recyclerview;import Android.view.gesturedetector;import android.view.motionevent;import android.view.view;/** * Created by Phil on 2016/11 /19.    */public class Recyclerviewutil {private Recyclerview mrecyclerview = null;    Private Gesturedetector mgesturedetector = null;    Private Recyclerview.simpleonitemtouchlistener Msimpleonitemtouchlistener;    Private Onitemclicklistener monitemclicklistener = null;    Private Onitemlongclicklistener monitemlongclicklistener = null;    Private context context;        Public Recyclerviewutil (context context, Recyclerview Recyclerview) {this.context = context;        This.mrecyclerview = Recyclerview;            Mgesturedetector = new Gesturedetector (context, new Gesturedetector.simpleongesturelistener () {//Long press Event                @Override public void onlongpress (Motionevent e) {super.onlongpress (e); if (monitemloNgclicklistener! = null) {View Childview = Mrecyclerview.findchildviewunder (E.getx (), e.gety ()); if (Childview! = null) {int position = Mrecyclerview.getchildlayoutposition (childvi                        EW);                    Monitemlongclicklistener.onitemlongclick (position, childview);  }}}//Click event @Override Public boolean onsingletapup (motionevent e) {if (Monitemclicklistener! = null) {View Childview = Mrecyclerview.findchildviewun                    Der (E.getx (), e.gety ());                        if (Childview! = null) {int position = mrecyclerview.getchildlayoutposition (Childview);                        Monitemclicklistener.onitemclick (position, childview);                    return true;            }} return Super.onsingletapup (e);        }        }); MsimpleonitemtouchListener = new Recyclerview.simpleonitemtouchlistener () {@Override public boolean Onintercepttouche Vent (Recyclerview RV, motionevent e) {if (Mgesturedetector.ontouchevent (e)) {return TR                Ue            } return false;        }        };    Mrecyclerview.addonitemtouchlistener (Msimpleonitemtouchlistener);    } public void Setonitemclicklistener (Onitemclicklistener l) {monitemclicklistener = l;    } public void Setonitemlongclicklistener (Onitemlongclicklistener l) {monitemlongclicklistener = l;    }//Long press event interface public interface Onitemlongclicklistener {public void Onitemlongclick (int position, view view);    }//Click event Interface public interface Onitemclicklistener {public void Onitemclick (int position, view view); }}

Use the time to copy the Recyclerviewutil.java directly into your project code project.

Appendix:
1, "Recyclerview Click event" Link: http://blog.csdn.net/zhangphil/article/details/46771865
2, "Android Recyclerview click, long by Event standard implementation: Based on Onitemtouchlistener + gesturedetector": http://blog.csdn.net/zhangphil/ article/details/53230157

Android Recyclerview Click, long-press event: Based on the Onitemtouchlistener +gesturedetector standard Implementation (ii), encapsulation is extracted into a generic tool class