页面滑动/侧滑页面

MainActivity
mianactivity布局

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="left"
        android:background="#467"
        android:orientation="vertical">
        <ImageView
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_gravity="center_horizontal"
            android:src="@mipmap/ic_launcher"/>

    </FrameLayout>
    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <android.support.v4.view.ViewPager
            android:id="@+id/viewpager"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        </android.support.v4.view.ViewPager>
        <android.support.design.widget.BottomNavigationView
            android:id="@+id/navigation"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="0dp"
            android:layout_marginEnd="0dp"
            android:background="?android:attr/windowBackground"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:menu="@menu/navigation" />
    </android.support.constraint.ConstraintLayout>


</android.support.v4.widget.DrawerLayout>

public class MainActivity extends AppCompatActivity {

    private TextView mTextMessage;

    private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
            = new BottomNavigationView.OnNavigationItemSelectedListener() {

        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            switch (item.getItemId()) {
                case R.id.navigation_home:
                    viewPager.setCurrentItem(0);
                    return true;
                case R.id.navigation_dashboard:
                    viewPager.setCurrentItem(1);
                    return true;
                case R.id.navigation_notifications:
                    viewPager.setCurrentItem(2);
                    return true;
            }
            return false;
        }
    };
    private ViewPager viewPager;
    private DrawerLayout drawerLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        viewPager = findViewById(R.id.viewpager);
        drawerLayout = findViewById(R.id.drawer);
        viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
            @Override
            public Fragment getItem(int i) {
                switch (i){
                    case 0:
                        return new Fragment01();
                    case 1:
                        return new Fragment02();
                    case 2:
                        return new Fragment03();
                }
                return null;
            }

            @Override
            public int getCount() {
                return 3;
            }
        });
        final BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
        navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int i, float v, int i1) {

            }

            @Override
            public void onPageSelected(int i) {
                switch (i){
                    case 0:
                        navigation.setSelectedItemId(R.id.navigation_home);break;
                    case 1:
                        navigation.setSelectedItemId(R.id.navigation_dashboard);break;
                    case 2:
                        navigation.setSelectedItemId(R.id.navigation_notifications);break;
                }
            }

            @Override
            public void onPageScrollStateChanged(int i) {

            }
        });
        //吐司
        drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
            @Override
            public void onDrawerSlide(@NonNull View view, float v) {

            }

            @Override
            public void onDrawerOpened(@NonNull View view) {
                Toast.makeText(MainActivity.this,"侧滑打开",Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onDrawerClosed(@NonNull View view) {
                Toast.makeText(MainActivity.this,"侧滑关闭",Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onDrawerStateChanged(int i) {

            }
        });
    }

}

Utils

public class HttpUtils {
    public interface CallBack {
        void getData(String s) ;
    }
    public static void httpAsycnTask(String strUrl, final CallBack back){
        new AsyncTask<String, Integer, String>() {
            @Override
            protected String doInBackground(String... strings) {
                return getNettork(strings[0]);
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                back.getData(s);
            }
        }.execute(strUrl);
    }


    public static boolean getNetwork(Context context){
        if(context!=null){
            ConnectivityManager manager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo info = manager.getActiveNetworkInfo();
            if(info!= null && info.isAvailable()){
                return true;
            }
        }
        return false;
    };
    public static String getNettork(String strUrl){
        try {
            URL url = new URL(strUrl);
            HttpURLConnection connection = (HttpURLConnection)url.openConnection();
            connection.setConnectTimeout(5000);
            connection.setReadTimeout(5000);
            connection.setRequestMethod("GET");
            InputStream stream = connection.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
            StringBuilder builder = new StringBuilder();
            String stt = "";
            while ((stt=reader.readLine())!=null){
                builder.append(stt);
            }
            connection.disconnect();
            return builder.toString();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    };
}

BaseActivity

public abstract class BaseActivity extends FragmentActivity {
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(bindLayout());
        initView();
        initData();
        bindEvent();
    }

    protected abstract void bindEvent();

    protected abstract void initData();

    protected abstract void initView();

    protected abstract int bindLayout();

    
}