Android界面编程--使用活动条（ActionBar）--实现Tab导航

Posted 2020-10-26 啸辰

使用ActionBar结合fragment实现导航

　　1，调用ActionBar的setNavigationModel(ActionBar.NAVIGATION_MODE_TABS)设置使用tabs导航

　　2，调用ActionBar的addTab()添加多个Tab标签

　　#################承载Fragment的Activity需要实现implements FirstFragment.OnFragmentInteractionListener这个接口，要不然就报错###############第二次碰到这个问题了

代码：包含原来的实现ActionBar中显示View组件（还需要在仔细看一些方法，细节）

 1 package com.example.administrator.myapplication;
 2 
 3 import android.net.Uri;
 4 import android.support.v4.app.Fragment;
 5 import android.support.v4.app.FragmentTransaction;
 6 import android.support.v4.view.MenuItemCompat;
 7 import android.support.v7.app.ActionBar;
 8 import android.support.v7.app.AppCompatActivity;
 9 import android.os.Bundle;
10 import android.view.Menu;
11 import android.view.MenuInflater;
12 
13 import layout.FirstFragment;
14 
15 public class MainActivity extends AppCompatActivity implements FirstFragment.OnFragmentInteractionListener,  ActionBar.TabListener {
16 
17     @Override
18     protected void onCreate(Bundle savedInstanceState) {
19         super.onCreate(savedInstanceState);
20         setContentView(R.layout.activity_main);
21 
22         final ActionBar actionBar = getSupportActionBar();
23         actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
24         //依次添加3个标签
25         actionBar.addTab(actionBar.newTab().setText("first").setTabListener(this));
26         actionBar.addTab(actionBar.newTab().setText("second").setTabListener(this));
27         actionBar.addTab(actionBar.newTab().setText("third").setTabListener(this));
28 
29 
30     }
31 
32     @Override
33     public boolean onCreateOptionsMenu(Menu menu) {
34         MenuInflater inflater = new MenuInflater(this);
35         inflater.inflate(R.menu.menu_main,menu);
36         MenuItemCompat.setShowAsAction(menu.findItem(R.id.search),MenuItemCompat.SHOW_AS_ACTION_ALWAYS);
37         MenuItemCompat.setShowAsAction(menu.findItem(R.id.progess),MenuItemCompat.SHOW_AS_ACTION_ALWAYS);
38         return super.onCreateOptionsMenu(menu);
39 
40 
41     }
42 
43     @Override
44     public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
45         Fragment fragment = new FirstFragment();
46         Bundle args = new Bundle();
47         args.putInt("zhang",tab.getPosition()+1);
48         fragment.setArguments(args);
49 
50         android.app.FragmentTransaction ft1 = getFragmentManager().beginTransaction();
51         ft.replace(R.id.container,fragment);
52         //ft.commit();//这代码不注释掉会保存############################################################################################################
53     }
54 
55     @Override
56     public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
57 
58     }
59 
60     @Override
61     public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
62 
63     }
64 
65     @Override
66     public void onFragmentInteraction(Uri uri) {
67 
68     }
69 }