package com.example.administrator.myapplication;

 import android.net.Uri;

 import android.support.v4.app.Fragment;

 import android.support.v4.app.FragmentTransaction;

 import android.support.v4.view.MenuItemCompat;

 import android.support.v7.app.ActionBar;

 import android.support.v7.app.AppCompatActivity;

 import android.os.Bundle;

 import android.view.Menu;

 import android.view.MenuInflater;

 import layout.FirstFragment;

 public class MainActivity extends AppCompatActivity implements FirstFragment.OnFragmentInteractionListener,  ActionBar.TabListener {

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

         final ActionBar actionBar = getSupportActionBar();

         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

         //依次添加3个标签

         actionBar.addTab(actionBar.newTab().setText("first").setTabListener(this));

         actionBar.addTab(actionBar.newTab().setText("second").setTabListener(this));

         actionBar.addTab(actionBar.newTab().setText("third").setTabListener(this));

     }

     @Override

     public boolean onCreateOptionsMenu(Menu menu) {

         MenuInflater inflater = new MenuInflater(this);

         inflater.inflate(R.menu.menu_main,menu);

         MenuItemCompat.setShowAsAction(menu.findItem(R.id.search),MenuItemCompat.SHOW_AS_ACTION_ALWAYS);

         MenuItemCompat.setShowAsAction(menu.findItem(R.id.progess),MenuItemCompat.SHOW_AS_ACTION_ALWAYS);

         return super.onCreateOptionsMenu(menu);

     }

     @Override

     public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {

         Fragment fragment = new FirstFragment();

         Bundle args = new Bundle();

         args.putInt("zhang",tab.getPosition()+1);

         fragment.setArguments(args);

         android.app.FragmentTransaction ft1 = getFragmentManager().beginTransaction();

         ft.replace(R.id.container,fragment);

         //ft.commit();//这代码不注释掉会保存############################################################################################################

     }

     @Override

     public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {

     }

     @Override

     public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {

     }

     @Override

     public void onFragmentInteraction(Uri uri) {

     }

 }