Android下拉刷新，上拉加载——Ultra-Pull-To-Refresh-With-Load-More（一）

implementation 'in.srain.cube:ptr-load-more:1.0.6'

<?xml version="1.0" encoding="utf-8"?>
<in.srain.cube.views.ptr.PtrFrameLayout
    android:id="@+id/ptr_frame_layout"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:cube_ptr="http://schemas.android.com/apk/res-auto"

    cube_ptr:ptr_resistance_header="1.7"
    cube_ptr:ptr_ratio_of_header_height_to_refresh="1.2"
    cube_ptr:ptr_duration_to_back_header="300"
    cube_ptr:ptr_duration_to_close_header="2000"
    cube_ptr:ptr_keep_header_when_refresh="true"
    cube_ptr:ptr_pull_to_fresh="false"

    cube_ptr:ptr_resistance_footer="1.3"
    cube_ptr:ptr_duration_to_back_footer="300"
    cube_ptr:ptr_duration_to_close_footer="2000">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/colorAccent"
            android:gravity="center"
            android:text="textView"/>
    </LinearLayout>
</in.srain.cube.views.ptr.PtrFrameLayout>

final PtrFrameLayout ptrFrameLayout = findViewById(R.id.ptr_frame_layout);
//配置头部参数,可以在xml中设置
// the following are default settings
    ptrFrameLayout.setResistance(1.7f);
    ptrFrameLayout.setRatioOfHeaderHeightToRefresh(1.2f);
    ptrFrameLayout.setDurationToClose(200);
    ptrFrameLayout.setDurationToCloseHeader(1000);
// default is false
    ptrFrameLayout.setPullToRefresh(false);
// default is true
    ptrFrameLayout.setKeepHeaderWhenRefresh(true);

//第一种头部,StoreHouse风格的头部实现
    /*StoreHouseHeader storeHouseHeader = new StoreHouseHeader(this);
    storeHouseHeader.setPadding(0,100,0,0);
    storeHouseHeader.setBackgroundColor(Color.BLACK);
    storeHouseHeader.setTextColor(Color.WHITE);
    storeHouseHeader.initWithString("haichenyi");//只可英文，中文不可运行(添加时间)
    ptrFrameLayout.setHeaderView(storeHouseHeader);
    ptrFrameLayout.addPtrUIHandler(storeHouseHeader);*/

    //第二种头部,Material Design风格的头部实现,类似SwipeRefreshLayout
    /*MaterialHeader materialHeader = new MaterialHeader(this);
    materialHeader.setColorSchemeColors(new int[]{Color.RED, Color.GREEN, Color.BLUE});
    ptrFrameLayout.setHeaderView(materialHeader);
    ptrFrameLayout.addPtrUIHandler(materialHeader);*/


    //第三种头部,经典 风格的头部实现，下拉箭头+时间
    PtrClassicDefaultHeader ptrClassicDefaultHeader = new PtrClassicDefaultHeader(this);
    ptrFrameLayout.setHeaderView(ptrClassicDefaultHeader);

    PtrClassicDefaultFooter ptrClassicDefaultFooter = new PtrClassicDefaultFooter(this);
    ptrFrameLayout.setFooterView(ptrClassicDefaultFooter);

    ptrFrameLayout.addPtrUIHandler(ptrClassicDefaultHeader);
    ptrFrameLayout.addPtrUIHandler(ptrClassicDefaultFooter);

ptrFrameLayout.setPtrHandler(new PtrDefaultHandler2() {
      @Override
      public void onLoadMoreBegin(PtrFrameLayout frame) {
        frame.postDelayed(ptrFrameLayout::refreshComplete, 2000);
      }

      @Override
      public void onRefreshBegin(PtrFrameLayout frame) {
        frame.postDelayed(ptrFrameLayout::refreshComplete, 2000);
      }
    });
    ptrFrameLayout.setMode(PtrFrameLayout.Mode.LOAD_MORE);