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| package com.ledoc.testtab;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import java.util.ArrayList;
import java.util.List;
public class mainActivity2 extends AppCompatActivity{
private Toolbar toolbar;
private TabLayout tabLayout;
private ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mainactivity2);
toolbar = (Toolbar) findViewById(R.id.mytoolbar);
setSupportActionBar(toolbar);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.mytabs);
tabLayout.setupWithViewPager(viewPager);
TabLayout.Tab tab = tabLayout.getTabAt(2);
tab.select();
}
private void setViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new lvFragment(), "Movie");
adapter.addFragment(new lvFragment(),"Music");
adapter.addFragment(new lvFragment(), "Book");
adapter.addFragment(new lvFragment(), "Movie2");
adapter.addFragment(new lvFragment(),"Music2");
adapter.addFragment(new lvFragment(), "Book2");
adapter.addFragment(new lvFragment(), "Movie3");
adapter.addFragment(new lvFragment(),"Music3");
adapter.addFragment(new lvFragment(), "Book3");
adapter.addFragment(new lvFragment(), "Movie4");
adapter.addFragment(new lvFragment(),"Music4");
adapter.addFragment(new lvFragment(), "Book4");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter
{
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
setTitle(mFragmentTitleList.get(position).toString());
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
} |
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