編輯：關於Android編程
主界面的代碼：
1 package com.example.administrator.actionbartest;
2
3 import android.app.ActionBar;
4 import android.app.Activity;
5 import android.os.Bundle;
6 import android.view.Menu;
7 import android.view.MenuItem;
8 import android.widget.Toast;
9
10 public class MainActivity extends Activity {
11
12
13 @Override
14 protected void onCreate(Bundle savedInstanceState) {
15 super.onCreate(savedInstanceState);
16 setContentView(R.layout.activity_main);
17 getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
18 ActionBar.Tab tab1 = getActionBar().newTab().setText("藝術家").setTabListener(new TabListener<AritistFragment>(this, "artist", AritistFragment.class));
19 ActionBar.Tab tab2 = getActionBar().newTab().setText("專輯名").setTabListener(new TabListener<AlbumFragment>(this, "album", AlbumFragment.class));
20 ActionBar.Tab tab3 = getActionBar().newTab().setText("公司名").setTabListener(new TabListener<CompanyFragment>(this, "company", CompanyFragment.class));
21 getActionBar().addTab(tab1);
22 getActionBar().addTab(tab2);
23 getActionBar().addTab(tab3);
24
25
26 }
27
28 @Override
29 public boolean onCreateOptionsMenu(Menu menu) {
30 // Inflate the menu; this adds items to the action bar if it is present.
31 getMenuInflater().inflate(R.menu.menu_main, menu);
32
33
34 return super.onCreateOptionsMenu(menu);
35 }
36
37
38 @Override
39 public boolean onOptionsItemSelected(MenuItem item) {
40 // Handle action bar item clicks here. The action bar will
41 // automatically handle clicks on the Home/Up button, so long
42 // as you specify a parent activity in AndroidManifest.xml.
43 int id = item.getItemId();
44 String msg = "";
45 switch (id) {
46 case R.id.action_search:
47 msg = "action_search";
48 break;
49 case R.id.action_intent:
50 msg = "action_intent";
51 break;
52 case R.id.action_settings:
53 msg = "action_settings";
54 break;
55 default:
56 break;
57
58 }
59 Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
60
61 return super.onOptionsItemSelected(item);
62 }
63 }
manifest文件
1 <?xml version="1.0" encoding="utf-8"?>
2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
3 package="com.example.administrator.actionbartest">
4
5 <application
6 android:allowBackup="true"
7 android:icon="@mipmap/ic_launcher"
8 android:label="@string/app_name"
9 android:logo="@drawable/ic_account_circle_red_300_18dp"
10 android:theme="@android:style/Theme.Holo.Light">
11 <activity
12 android:name=".MainActivity"
13 android:label="@string/app_name">
14 <intent-filter>
15 <action android:name="android.intent.action.MAIN" />
16
17 <category android:name="android.intent.category.LAUNCHER" />
18 </intent-filter>
19 </activity>
20 <activity
21 android:name=".Main2Activity"
22 android:label="@string/title_activity_main2"></activity>
23 <activity
24 android:name=".Main3Activity"
25 android:label="@string/title_activity_main3"
26 android:parentActivityName=".MainActivity">
27
28 </activity>
29 </application>
30
31 </manifest>
tablistener
1 package com.example.administrator.actionbartest;
2
3 import android.app.ActionBar;
4 import android.app.Activity;
5 import android.app.Fragment;
6 import android.app.FragmentTransaction;
7
8 /**
9 * Created by Administrator on 2015/8/14.
10 */
11 public class TabListener<T extends Fragment> implements ActionBar.TabListener {
12
13 private Fragment fragment;
14 private final Activity mActivity;
15 private final String mTag;
16 private final Class<T> mClass;
17
18 public TabListener(Activity mActivity, String mTag, Class<T> mClass) {
19 this.mActivity = mActivity;
20 this.mTag = mTag;
21 this.mClass = mClass;
22 }
23
24 @Override
25 public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
26
27 if (fragment == null) {
28 fragment = Fragment.instantiate(mActivity, mClass.getName());
29 ft.add(android.R.id.content, fragment, mTag);
30
31 } else {
32 ft.attach(fragment);
33 }
34
35
36 }
37
38 @Override
39 public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
40 if (fragment != null) {
41 ft.detach(fragment);
42 }
43 }
44
45 @Override
46 public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
47
48 }
49 }
自定義的actionprovider
1 package com.example.administrator.actionbartest;
2
3 import android.content.Context;
4 import android.view.ActionProvider;
5 import android.view.MenuItem;
6 import android.view.SubMenu;
7 import android.view.View;
8 import android.widget.Toast;
9
10 /**
11 * Created by Administrator on 2015/8/14.
12 */
13 public class MyActionProvider extends ActionProvider {
14
15
16 private Context context;
17
18 public MyActionProvider(Context context) {
19 super(context);
20 this.context = context;
21
22 }
23
24 @Override
25 public View onCreateActionView() {
26 return null;
27 }
28
29 @Override
30 public boolean hasSubMenu() {
31 return true;
32 }
33
34 @Override
35 public void onPrepareSubMenu(SubMenu subMenu) {
36 subMenu.clear();
37 subMenu.add("sub item1").setIcon(R.drawable.ic_queue_black_18dp).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
38 @Override
39 public boolean onMenuItemClick(MenuItem item) {
40 Toast.makeText(context, "item1", Toast.LENGTH_SHORT).show();
41
42 return false;
43 }
44 }
45 );
46
47 subMenu.add("sub item2").setIcon(R.drawable.ic_account_circle_red_300_18dp).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
48 @Override
49 public boolean onMenuItemClick(MenuItem item) {
50 Toast.makeText(context, "item2", Toast.LENGTH_SHORT).show();
51
52 return false;
53 }
54 }
55 );
56
57
58 super.onPrepareSubMenu(subMenu);
59 }
60 }
最後是菜單布局
1 <menu xmlns:android="http://schemas.android.com/apk/res/android"
2 xmlns:tools="http://schemas.android.com/tools"
3 tools:context=".MainActivity">
4
5 <item
6 android:id="@+id/action_search"
7 android:actionViewClass="android.widget.SearchView"
8 android:icon="@drawable/ic_queue_black_18dp"
9 android:showAsAction="ifRoom|collapseActionView"
10 android:title="search" />
11 <item
12 android:id="@+id/action_intent"
13 android:actionProviderClass="com.example.administrator.actionbartest.MyActionProvider"
14 android:icon="@drawable/ic_account_circle_red_300_18dp"
15 android:showAsAction="ifRoom"
16 android:title="share" />
17 <item
18 android:id="@+id/delete"
19 android:icon="@drawable/ic_picture_in_picture_black_18dp"
20 android:showAsAction="ifRoom"
21 android:title="delete" />
22
23
24 <!-- 永遠顯示在overflow中-->
25 <item
26 android:id="@+id/action_settings"
27 android:showAsAction="never"
28 android:title="@string/action_settings" />
29 </menu>
然後我們來看看toolbar 怎麼做。以及他們之間的區別。實際上你仔細觀察以後就能發現，toolbar 比actionbar 效果更好，尤其是增加了很多動畫效果。
此外toolbar 是沒有tab的，他需要結合support庫裡的tablayout來完成原來actionbar裡的tab功能。除此之外，你在使用toolbar的時候要先屏蔽掉
actionbar否則會報錯。另外就是toolbar實際上放在哪都是可以的，actionbar 則固定在頂端位置。另外就是一些xml文件的參數在寫的時候要多注意
前綴。最後就是同樣一個類 不要用4.x自帶的，要用v4 或者v7的，不然會有很多錯。
主界面代碼
1 package com.example.administrator.toolbartest;
2
3 import android.os.Bundle;
4 import android.support.design.widget.TabLayout;
5 import android.support.v4.app.Fragment;
6 import android.support.v4.app.FragmentManager;
7 import android.support.v4.app.FragmentStatePagerAdapter;
8 import android.support.v4.view.MenuItemCompat;
9 import android.support.v4.view.ViewPager;
10 import android.support.v7.app.AppCompatActivity;
11 import android.support.v7.widget.Toolbar;
12 import android.view.Menu;
13 import android.view.MenuItem;
14 import android.widget.Toast;
15
16 public class MainActivity extends AppCompatActivity {
17
18 private Toolbar toolbar;
19
20 private TabLayout tabLayout;
21
22
23 private ViewPager viewPager;
24
25 private PagerAdapter adapter;
26
27 @Override
28 protected void onCreate(Bundle savedInstanceState) {
29 super.onCreate(savedInstanceState);
30 setContentView(R.layout.activity_main);
31 toolbar = (Toolbar) this.findViewById(R.id.toolBar);
32 tabLayout = (TabLayout) this.findViewById(R.id.tabLayout);
33 tabLayout.addTab(tabLayout.newTab().setText("Tab 1"));
34 tabLayout.addTab(tabLayout.newTab().setText("Tab 2"));
35 tabLayout.addTab(tabLayout.newTab().setText("Tab 3"));
36 tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
37 viewPager = (ViewPager) findViewById(R.id.viewpager);
38 adapter = new PagerAdapter
39 (getSupportFragmentManager(), tabLayout.getTabCount());
40 viewPager.setAdapter(adapter);
41 viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
42 tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
43 @Override
44 public void onTabSelected(TabLayout.Tab tab) {
45 viewPager.setCurrentItem(tab.getPosition());
46 }
47
48 @Override
49 public void onTabUnselected(TabLayout.Tab tab) {
50
51 }
52
53 @Override
54 public void onTabReselected(TabLayout.Tab tab) {
55
56 }
57 });
58 toolbar.setTitle("ToolBar");
59
60 setSupportActionBar(toolbar);
61 //有些語句得寫在setSupportActionBar 之後才有效果
62
63 toolbar.setNavigationIcon(R.drawable.ic_account_circle_red_500_18dp);
64 toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
65
66
67 @Override
68 public boolean onMenuItemClick(MenuItem menuItem) {
69 int id = menuItem.getItemId();
70 String msg = "";
71 switch (id) {
72 case R.id.action_search:
73 msg = "action_search";
74 break;
75 case R.id.action_intent:
76 msg = "action_intent";
77 //這個地方要注意使用這種方式增加actionprovider不然會報錯
78 MenuItemCompat.setActionProvider(menuItem, new MyActionProvider(MainActivity.this));
79 break;
80 default:
81 break;
82
83 }
84 Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();
85
86 return false;
87 }
88 });
89 }
90
91 class PagerAdapter extends FragmentStatePagerAdapter {
92
93 int numOfTabs;
94
95 public PagerAdapter(FragmentManager fm, int numOfTabs) {
96 super(fm);
97 this.numOfTabs = numOfTabs;
98 }
99
100 @Override
101 public Fragment getItem(int position) {
102
103 switch (position) {
104 case 0:
105 TabFragment1 tab1 = new TabFragment1();
106 return tab1;
107 case 1:
108 TabFragment2 tab2 = new TabFragment2();
109 return tab2;
110 case 2:
111 TabFragment3 tab3 = new TabFragment3();
112 return tab3;
113 default:
114 return null;
115 }
116 }
117
118 @Override
119 public int getCount() {
120 return numOfTabs;
121 }
122 }
123
124
125 @Override
126 public boolean onCreateOptionsMenu(Menu menu) {
127 // Inflate the menu; this adds items to the action bar if it is present.
128 getMenuInflater().inflate(R.menu.menu_main, menu);
129 return true;
130 }
131
132 @Override
133 public boolean onOptionsItemSelected(MenuItem item) {
134 // Handle action bar item clicks here. The action bar will
135 // automatically handle clicks on the Home/Up button, so long
136 // as you specify a parent activity in AndroidManifest.xml.
137
138 return super.onOptionsItemSelected(item);
139 }
140 }
主界面布局文件
1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
2 xmlns:tools="http://schemas.android.com/tools"
3 android:layout_width="match_parent"
4 android:layout_height="match_parent"
5 tools:context=".MainActivity">
6
7
8 <android.support.v7.widget.Toolbar
9 android:id="@+id/toolBar"
10 android:layout_width="match_parent"
11 android:layout_height="wrap_content"
12 android:background="?attr/colorPrimary"
13 android:minHeight="?attr/actionBarSize"></android.support.v7.widget.Toolbar>
14
15 <android.support.design.widget.TabLayout
16 android:id="@+id/tabLayout"
17 android:layout_width="match_parent"
18 android:layout_height="wrap_content"
19 android:layout_below="@id/toolBar"
20 android:background="?attr/colorPrimary"></android.support.design.widget.TabLayout>
21
22 <android.support.v4.view.ViewPager
23 android:id="@+id/viewpager"
24 android:layout_width="match_parent"
25 android:layout_height="match_parent"
26 android:layout_below="@id/tabLayout" />
27
28
29 </RelativeLayout>
manifest配置文件
1 <?xml version="1.0" encoding="utf-8"?>
2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
3 package="com.example.administrator.toolbartest" >
4
5 <application
6 android:allowBackup="true"
7 android:icon="@mipmap/ic_launcher"
8 android:label="@string/app_name"
9 android:theme="@style/AppTheme" >
10 <activity
11 android:name=".MainActivity"
12 android:label="@string/app_name" >
13 <intent-filter>
14 <action android:name="android.intent.action.MAIN" />
15
16 <category android:name="android.intent.category.LAUNCHER" />
17 </intent-filter>
18 </activity>
19 </application>
20
21 </manifest>
用於屏蔽actionbar的style文件
1 <resources>
2
3 <!-- Base application theme. -->
4 <style name="AppTheme" parent="AppTheme.Base">
5 <!-- Customize your theme here. -->
6 </style>
7
8 <style name="AppTheme.Base" parent="Theme.AppCompat">
9 <item name="windowActionBar">false</item>
10 <item name="windowNoTitle">true</item>
11 <!-- Actionbar color -->
12 <item name="colorPrimary">@color/material_blue_grey_800</item>
13 <!--Status bar color-->
14 <item name="colorPrimaryDark">@color/accent_material_light</item>
15 <!--Window color-->
16 <item name="android:windowBackground">@color/dim_foreground_material_dark</item>
17
18
19 </style>
20
21
22 </resources>
自定義的actionprovider 其實這個和actionbar的那個相比 只是引用的actionprovider不一樣罷了。這個是用的v4包裡的
1 package com.example.administrator.toolbartest;
2
3 import android.content.Context;
4 import android.support.v4.view.ActionProvider;
5 import android.util.Log;
6 import android.view.MenuItem;
7 import android.view.SubMenu;
8 import android.view.View;
9 import android.widget.Toast;
10
11 /**
12 * Created by Administrator on 2015/8/14.
13 */
14 public class MyActionProvider extends ActionProvider {
15
16
17 private Context context;
18
19 public MyActionProvider(Context context) {
20 super(context);
21 this.context = context;
22
23 }
24
25 @Override
26 public View onCreateActionView() {
27 return null;
28 }
29
30 @Override
31 public boolean hasSubMenu() {
32 return true;
33 }
34
35 @Override
36 public void onPrepareSubMenu(SubMenu subMenu) {
37 Log.v("burning","onPrepareSubMenu");
38 subMenu.clear();
39 subMenu.add("sub item1").setIcon(R.drawable.ic_add_shopping_cart_red_500_18dp).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
40 @Override
41 public boolean onMenuItemClick(MenuItem item) {
42 Toast.makeText(context, "item1", Toast.LENGTH_SHORT).show();
43
44 return false;
45 }
46 }
47 );
48
49 subMenu.add("sub item2").setIcon(R.drawable.ic_assignment_ind_red_500_18dp).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
50 @Override
51 public boolean onMenuItemClick(MenuItem item) {
52 Toast.makeText(context, "item2", Toast.LENGTH_SHORT).show();
53
54 return false;
55 }
56 }
57 );
58
59
60 super.onPrepareSubMenu(subMenu);
61 }
62 }
然後看一下 菜單文件
1 <menu xmlns:android="http://schemas.android.com/apk/res/android"
2 xmlns:app="http://schemas.android.com/apk/res-auto"
3 xmlns:tools="http://schemas.android.com/tools"
4 tools:context=".MainActivity">
5
6 <item
7 android:id="@+id/action_settings"
8 android:orderInCategory="100"
9 android:title="@string/action_settings"
10 app:showAsAction="never" />
11
12 <!-- 注意這個地方searchview的寫法和actionbar的不同 如果用actionbar的寫法會有很多錯誤-->
13 <item
14 android:id="@+id/action_search"
15 android:icon="@drawable/ic_redeem_red_500_18dp"
16 android:title="search"
17 app:actionViewClass="android.support.v7.widget.SearchView"
18 app:showAsAction="ifRoom|collapseActionView" />
19
20 <item
21 android:id="@+id/action_intent"
22 android:actionProviderClass="com.example.administrator.toolbartest.MyActionProvider"
23 android:icon="@drawable/ic_account_balance_red_500_18dp"
24 app:showAsAction="ifRoom"
25 android:title="share" />
26 <!--
27 <item
28 android:id="@+id/delete"
29 android:icon="@drawable/ic_picture_in_picture_black_18dp"
30 android:showAsAction="ifRoom"
31 android:title="delete" />
32 -->
33
34 </menu>
基本上就是這些異同了。注釋寫的不多，因為比較簡單。最後如果你要更改一些自定義效果 一定要多看源碼裡的style文件
那個裡面包含一切，只是谷歌的話很多你會查不到 因為這東西剛出來不久。
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