RecyclerView实现水波纹点击效果

本文实例为大家分享了recyclerview实现水波纹点击效果的具体代码，供大家参考，具体内容如下

效果图

item.xml

这里就是主要设置background为我们后面写的一个selector

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:background="@drawable/recycler_item_selector"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
 <textview
  android:id="@+id/textview"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:gravity="center"
  android:textsize="40sp"
  android:text="aaaa"/>
</linearlayout>

drawable-v21/recycler_item_selector.xml (v21版本以上)

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
  android:color="@color/colorprimary">
 <item android:drawable="@color/write"/>
</ripple>

drawable/recycler_item_selector.xml (v21版本以下的没有水波纹效果)

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
 <item android:drawable="@color/colorprimary" android:state_pressed="true"/>
 <item android:drawable="@color/colorprimary" android:state_focused="true"/>
 <item android:drawable="@color/write"/>
</selector>

接下来是myadapter

public class myadapter extends recyclerview.adapter<myadapter.viewholder> {


 private onrvitemclick monrvitemclick;
 private context mcontext;
 string[] strings;

 public myadapter(context ctx, string[] strings, onrvitemclick onrvitemclick) {
  mcontext = ctx;
  this.monrvitemclick = onrvitemclick;
  this.strings = strings;
 }

 @override
 public viewholder oncreateviewholder(viewgroup parent, int viewtype) {
  view view = layoutinflater.from(mcontext).inflate(r.layout.item, parent, false);
  return new viewholder(view);
 }

 @override
 public void onbindviewholder(viewholder holder, int position) {
  holder.setdata(position);
 }

 @override
 public int getitemcount() {
  return 20;
 }


 public class viewholder extends recyclerview.viewholder implements view.onclicklistener {
  @bindview(r.id.textview)
  textview textview;

  public viewholder(view itemview) {
   super(itemview);
   butterknife.bind(this,itemview);
   itemview.setonclicklistener(this);
  }

  public void setdata(int position) {

   textview.settext("position" + position);
  }

  @override
  public void onclick(view view) {
   if (monrvitemclick != null)
    monrvitemclick.onitemclick(view, getadapterposition());
  }

 }


 /**
  * item点击接口
  */
 public interface onrvitemclick {
  void onitemclick(view v, int position);
 }
}

mainactivity

public class mainactivity extends appcompatactivity {

 @bindview(r.id.recyclerview)
 recyclerview mrecyclerview;
 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  butterknife.bind(this);
  myadapter myadapter = new myadapter(this, null, new myadapter.onrvitemclick() {
   @override
   public void onitemclick(view v, int position) {
    toast.maketext(getapplicationcontext(), "click" + position, toast.length_short)
      .show();
   }
  });
  mrecyclerview.setlayoutmanager(new linearlayoutmanager(this,linearlayoutmanager.vertical,false));

  mrecyclerview.setadapter(myadapter);
 }
}

github ：recyclerview水波纹效果

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。