Android：選項卡視圖片段

Question

我試圖實現像這樣的滑動選項卡視圖http://www.androidhive.info/2013/10/android-tab-layout-with-swipeable-views-1/。 但是，當我嘗試實施getItems方法的調節器，它不接受我的自定義片段。 下面的代碼： MyActivity.java

package com.bob.app; 

import android.os.Bundle; 
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.v4.widget.DrawerLayout; 
import android.support.v7.app.AppCompatActivity; 
import android.view.*; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 


public class MainActivity extends AppCompatActivity implements android.support.v7.app.ActionBar.TabListener { 
    private ViewPager viewPager; 
    private TabsPagerAdapter mAdapter; 
    private String[] tabs = { getString(R.string.tab_home), getString(R.string.tab_city), getString(R.string.tab_name),getString(R.string.tab_favorites) }; 
    private DrawerLayout drawerLayout; 
    private ListView listView; 
    private String[] Drawer_menu_item; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     final android.support.v7.app.ActionBar actionbar = getSupportActionBar(); 
     actionbar.setNavigationMode(android.support.v7.app.ActionBar.NAVIGATION_MODE_TABS); 
     viewPager = (ViewPager) findViewById(R.id.pager); 
     mAdapter = new TabsPagerAdapter(getSupportFragmentManager()); 

     viewPager.setAdapter(mAdapter); 
     actionbar.setHomeButtonEnabled(true); 

     // Adding Tabs 
     for (String tab_name : tabs) { 
      actionbar.addTab(actionbar.newTab().setText(tab_name) 
        .setTabListener((android.support.v7.app.ActionBar.TabListener) this)); 
      Drawer_menu_item= getResources().getStringArray(R.array.menu_item); 
      drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
      listView = (ListView) findViewById(R.id.left_drawer); 

      // Set the adapter for the list view 
      listView.setAdapter(new ArrayAdapter<String>(this, 
        R.layout.drawer, Drawer_menu_item)); 
      /* Set the list's click listener 
      listView.setOnItemClickListener(new DrawerItemClickListener());*/ 
     } 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.menu_main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     //noinspection SimplifiableIfStatement 
     if (id == R.id.action_settings) { 
      return true; 
     } 

     return super.onOptionsItemSelected(item); 
    } 

    @Override 
    public void onTabSelected(android.support.v7.app.ActionBar.Tab tab, android.support.v4.app.FragmentTransaction ft) { 

    } 

    @Override 
    public void onTabUnselected(android.support.v7.app.ActionBar.Tab tab, android.support.v4.app.FragmentTransaction ft) { 

    } 

    @Override 
    public void onTabReselected(android.support.v7.app.ActionBar.Tab tab, android.support.v4.app.FragmentTransaction ft) { 

    } 

    public class TabsPagerAdapter extends FragmentPagerAdapter { 

     public TabsPagerAdapter(FragmentManager fm) { 
      super(fm); 
     } 

     @Override 
     public Fragment getItem(int index) { 

      switch (index) { 
       case 0: 
        /* Home fragment 
        return new Home_fragment(); 
       case 1: 
        /* City fragment 
        return new City_fragment(); 
       case 2: 
        /* Name fragment 
        return new Name_fragment(); 
       case 3: 
        /* Favourites fragment 
        return new Fav_fragment(); 
      } 

      return null; 
     } 

     @Override 
     public int getCount() { 
      // get item count - equal to number of tabs 
      return tabs.length; 
     } 

    } 
} 

Name_fragment.java

package com.bob.sluurpy.app; 

import android.app.Fragment; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 

/** 
* Created by boob on 11/09/15. 
*/ 
public class Name_fragment extends Fragment { 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     View rootView = inflater.inflate(R.layout.name, container, false); 

     return rootView; 
    } 
} 

Answer 1

請代替import android.app.Fragment;導入此import android.support.v4.app.Fragment;在Name_fragment這可以解決您的問題！