android下拉刷新

一.在build.gradle(Module:app)中添加依赖:

implementation 'in.srain.cube:ultra-ptr:1.0.11'

二.xml文件(将要刷新的控件添加进此xml文件中)

<in.srain.cube.views.ptr.PtrClassicFrameLayout xmlns:cube_ptr="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/store_house_ptr_frame"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    cube_ptr:ptr_duration_to_close="300"
    cube_ptr:ptr_duration_to_close_header="800"
    cube_ptr:ptr_keep_header_when_refresh="true"
    cube_ptr:ptr_pull_to_fresh="false"
    cube_ptr:ptr_ratio_of_header_height_to_refresh="1.2"
    cube_ptr:ptr_resistance="1.7">



</in.srain.cube.views.ptr.PtrClassicFrameLayout>

三.MainAcitvity中添加:

mPtrClassicFrameLayout = (PtrClassicFrameLayout) findViewById(R.id.store_house_ptr_frame);
        mPtrClassicFrameLayout.setPtrHandler(new PtrHandler() {
            @Override
            public void onRefreshBegin(PtrFrameLayout frame) {
                frame.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        mPtrClassicFrameLayout.refreshComplete();
                        mPtrClassicFrameLayout.setLastUpdateTimeKey("2017-2-10");
                    }
                }, 2000);
            }

            @Override
            public boolean checkCanDoRefresh(PtrFrameLayout frame, View content, View header) {
                return PtrDefaultHandler.checkContentCanBePulledDown(frame, content, header);
            }
        });