UseInFragmentActivity.java

package com.jaeger.statusbarutil;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import com.ashokvarma.bottomnavigation.BottomNavigationBar;
import com.ashokvarma.bottomnavigation.BottomNavigationItem;
import com.jaeger.library.StatusBarUtil;
import com.jaeger.statusbardemo.R;
import java.util.ArrayList;
import java.util.Random;

/**
 * Created by Jaeger on 16/8/11.
 *
 * Email: chjie.jaeger@gmail.com
 * GitHub: https://github.com/laobie
 */
public class UseInFragmentActivity extends BaseActivity {
    private ViewPager mVpHome;
    private BottomNavigationBar mBottomNavigationBar;
    private ArrayList<Fragment> mFragmentList = new ArrayList<>();

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_use_in_fragment);
        mVpHome = (ViewPager) findViewById(R.id.vp_home);
        mBottomNavigationBar = (BottomNavigationBar) findViewById(R.id.bottom_navigation_bar);
        mBottomNavigationBar.addItem(new BottomNavigationItem(R.drawable.ic_favorite, "One"))
            .addItem(new BottomNavigationItem(R.drawable.ic_gavel, "Two"))
            .addItem(new BottomNavigationItem(R.drawable.ic_grade, "Three"))
            .addItem(new BottomNavigationItem(R.drawable.ic_group_work, "Four"))
            .initialise();

        mBottomNavigationBar.setTabSelectedListener(new BottomNavigationBar.OnTabSelectedListener() {
            @Override
            public void onTabSelected(int position) {
                mVpHome.setCurrentItem(position);
            }

            @Override
            public void onTabUnselected(int position) {

            }

            @Override
            public void onTabReselected(int position) {

            }
        });

        mFragmentList.add(new ImageFragment());
        mFragmentList.add(new SimpleFragment());
        mFragmentList.add(new SimpleFragment());
        mFragmentList.add(new SimpleFragment());

        mVpHome.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                mBottomNavigationBar.selectTab(position);
                switch (position) {
                    case 0:
                        break;
                    default:
                        Random random = new Random();
                        int color = 0xff000000 | random.nextInt(0xffffff);
                        if (mFragmentList.get(position) instanceof SimpleFragment) {
                            ((SimpleFragment) mFragmentList.get(position)).setTvTitleBackgroundColor(color);
                        }
                        break;
                }
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });
        mVpHome.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {
            @Override
            public Fragment getItem(int position) {
                return mFragmentList.get(position);
            }

            @Override
            public int getCount() {
                return mFragmentList.size();
            }
        });
    }

    @Override
    protected void setStatusBar() {
        StatusBarUtil.setTranslucentForImageViewInFragment(UseInFragmentActivity.this, null);
    }
}