MainActivity.java

package com.dahuo.learn.act;

import android.content.Intent;
import android.databinding.DataBindingUtil;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.view.View;

import com.dahuo.learn.startup.R;
import com.dahuo.learn.startup.databinding.ActMainBinding;
import com.github.captain_miao.recyclerviewutils.listener.RefreshRecyclerViewListener;
import com.google.android.agera.Updatable;

import in.srain.cube.views.ptr.PtrClassicFrameLayout;
import in.srain.cube.views.ptr.PtrDefaultHandler;
import in.srain.cube.views.ptr.PtrFrameLayout;
import in.srain.cube.views.ptr.PtrHandler;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener, Updatable, RefreshRecyclerViewListener {
    private DrawerLayout mDrawerLayout;
    private ActMainBinding mDataBinding;
    private PtrClassicFrameLayout mPtrFrameLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mDataBinding = DataBindingUtil.setContentView(this, R.layout.act_main);
        setSupportActionBar(mDataBinding.toolbar);
        mDrawerLayout = mDataBinding.drawerLayout;

        //for navigation
        final ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, mDrawerLayout, mDataBinding.toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        mDrawerLayout.addDrawerListener(toggle);
        toggle.syncState();

        mDataBinding.navView.setNavigationItemSelectedListener(this);

        mPtrFrameLayout = mDataBinding.ptrFrame;

        mPtrFrameLayout.setEnabledNextPtrAtOnce(true);
        mPtrFrameLayout.setLastUpdateTimeRelateObject(this);
        mPtrFrameLayout.setPtrHandler(new PtrHandler() {
            @Override
            public void onRefreshBegin(PtrFrameLayout frame) {
            }

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


    @Override
    protected void onDestroy() {
        super.onDestroy();
    }



    @Override
    public void onBackPressed() {
        if (mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
            mDrawerLayout.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }


    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        switch (id) {
            case R.id.nav_home:
                item.setChecked(true);
                mDrawerLayout.closeDrawers();
                return true;
            case R.id.nav_set:
                mDrawerLayout.closeDrawers();
                break;
            case R.id.nav_city:
                mDrawerLayout.closeDrawers();
                break;
        }
        //mDrawerLayout.closeDrawer(GravityCompat.START);


        return true;
    }

    @Override
    public void update() {
    }

    @Override
    public void onRefresh() {

    }

    @Override
    public void onLoadMore(int pagination, int pageSize) {
        // do nothing
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode == 1 && resultCode ==  RESULT_OK){
            // refresh
            onRefresh();
        }
    }


}