ViewPager动态加载Fragment

整体思路:

1.添加控件ViewPager

2.创建fragment--BlankFragment

3.在BlankFragment的java文件内创建静态方法newInstance(int id)，返回值为Fragment

    Bundle bundle=new Bundle();
    bundle.putInt("id",id);
    BlankFragment fragment=new BlankFragment();
    fragment.setArguments(bundle);
    return fragment;       

4.在BlankFragment的onCreateView方法中，根据Bundle的数据，设置控件的内容

    View view= inflater.inflate(R.layout.fragment_blank, container, false);
    Bundle bundle=getArguments();
    int id=bundle.getInt("id");
    TextView textView=view.findViewById(R.id.txt_fragment);
    textView.setText(MainActivity.name[id]);
    return view;

name为自己设置的一个数组，实际上可以根据id，从数据库中获得所需数据

5.自定义PaperAdapter

  public class MyPagerAdapter extends FragmentPagerAdapter{

        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
        }
        //通过BlankFragment自定义的方法,根据位置,返回fragment
        @Override
        public Fragment getItem(int position) {
            return BlankFragment.newInstance(position);
        }

        @Override
        public int getCount() {
            return mFragmentCount;
        }
    }

6.ViewPager加载Adapter

 mFragmentCount=5;
 name=new String[]{"one","two","three","four","five"};
 ViewPager viewPager=findViewById(R.id.pager);
 MyPagerAdapter adapter=new MyPagerAdapter(getSupportFragmentManager());
 viewPager.setAdapter(adapter);

这样就OK了，下面就是效果图