1 布局文件的设置，如下
2
3 <?xml version="1.0" encoding="utf-8"?>
4 <TabHost xmlns:android="http://schemas.android.com/apk/res/android"
5 android:id="@+id/tabhosts"
6 android:layout_width="match_parent"
7 android:layout_height="match_parent"
8 android:layout_weight="1"
9 android:background="#fff" >
10
11 <LinearLayout
12 android:layout_width="fill_parent"
13 android:layout_height="match_parent"
14 android:orientation="vertical" >
15
16 <FrameLayout
17 android:id="@android:id/tabcontent"
18 android:layout_width="match_parent"
19 android:layout_weight="1.0"
20 android:layout_height="0.0dp" />
21
22 <TabWidget
23 android:visibility="gone"
24 android:id="@android:id/tabs"
25 android:layout_width="match_parent"
26 android:layout_height="wrap_content"
27 android:layout_gravity="bottom"
28 android:orientation="horizontal"/>
29
30 <RadioGroup
31 android:layout_gravity="bottom"
32 android:gravity="center"
33 android:id="@+id/main_rdg"
34 android:background="@drawable/main_radio_bg"
35 android:layout_width="match_parent"
36 android:layout_height="wrap_content"
37 android:orientation="horizontal" >
38
39 <RadioButton
40 style="@style/bottom_radio_style"
41 android:id="@+id/rd_index"
42 android:layout_width="0dp"
43 android:layout_height="match_parent"
44 android:text="@string/index"
45 android:gravity="center_horizontal"
46 android:drawableTop="@drawable/icon_tab_homepage_checked"
47 android:layout_weight="1"
48 />
49
50 <RadioButton
51 style="@style/bottom_radio_style"
52 android:id="@+id/rd_near"
53 android:layout_width="0dp"
54 android:layout_height="match_parent"
55 android:layout_weight="1"
56 android:text="@string/near"
57 android:drawableTop="@drawable/icon_tab_nearby_checked" />
58
59 <RadioButton
60 style="@style/bottom_radio_style"
61 android:id="@+id/rd_own"
62 android:layout_width="0dp"
63 android:layout_height="match_parent"
64 android:layout_weight="1"
65 android:text="@string/own"
66 android:drawableTop="@drawable/icon_tab_mine_checked"/>
67
68 <RadioButton
69 style="@style/bottom_radio_style"
70 android:id="@+id/rd_more"
71 android:text="@string/more"
72 android:drawableTop="@drawable/icon_tab_more_checked"
73 android:layout_width="0dp"
74 android:layout_height="match_parent"
75 android:layout_weight="1" />
76 </RadioGroup>
77
78 </LinearLayout>
79 </TabHost>
80
81 通过样式文件更改radioButton的效果
82
83 <?xml version="1.0" encoding="utf-8"?>
84
85 <resources xmlns:android="http://schemas.android.com/apk/res/android">
86
87 <style name="bottom_radio_style">
88
89 <item name="android:button">@null</item>
90
91 <item name="android:gravity">center</item>
92
93 <item name="android:background">@drawable/main_bottom_rd</item>
94
95 </style>
96
97 </resources>
98
99 选择效果（选择一个标签是的一个选择效果）
100
101 <?xml version="1.0" encoding="utf-8"?>
102
103 <selector xmlns:android="http://schemas.android.com/apk/res/android">
104
105 <item android:state_enabled="true" android:state_pressed="true" android:drawable="@drawable/main_radio_select"></item>
106
107 <item android:state_enabled="true" android:state_checked="true" android:drawable="@drawable/main_radio_select"></item>
108
109 </selector>
110
111 activity中的代码设置如下：
112
113 package cn.liu.activity;
114 public class MainActivity extends ActivityGroup {
115 protected static final String TAG = "MainActivity";
116 private TabHost tabHost = null;
117 private RadioGroup rGroup;
118
119 @Override
120 protected void onCreate(Bundle savedInstanceState) {
121 super.onCreate(savedInstanceState);
122 // 设置手机全屏显示
123 requestWindowFeature(Window.FEATURE_NO_TITLE);
124 getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
125 WindowManager.LayoutParams.FLAG_FULLSCREEN);
126 setContentView(R.layout.main);
127 // 通过findviewbyId这种方式找到tabhost，就必须要调用
128 // setup方法，而且如果当前类，没有集成ActivityGroup,会报E/AndroidRuntime(380): java.lang.RuntimeException: Unable to start activity
129 ComponentInfo{cn.liu.eat/cn.liu.activity.MainActivity}: java.lang.IllegalStateException: Did you forget to call 'public void
130 setup(LocalActivityManager activityGroup)且setup必须要设置成this.getLocalActivityManager()这样才不会出问题
131 tabHost = (TabHost) this.findViewById(R.id.tabhosts);
132 tabHost.setup(this.getLocalActivityManager());
133 TabSpec tabSpec1 = tabHost.newTabSpec("tab1").setIndicator("tab1")
134 .setContent(new Intent(this, HomeActivity.class));
135 TabSpec tabSpec2 = tabHost.newTabSpec("tab2").setIndicator("tab2")
136 .setContent(new Intent(this, NearActivity.class));
137 TabSpec tabSpec3 = tabHost.newTabSpec("tab3").setIndicator("tab3")
138 .setContent(new Intent(this, MineActivity.class));
139 TabSpec tabSpec4 = tabHost.newTabSpec("tab4").setIndicator("tab4")
140 .setContent(new Intent(this, MoreActivity.class));
141
142 tabHost.addTab(tabSpec1);
143 tabHost.addTab(tabSpec2);
144 tabHost.addTab(tabSpec3);
145 tabHost.addTab(tabSpec4);
146 tabHost.setCurrentTab(0);
147
148 rGroup = (RadioGroup) this.findViewById(R.id.main_rdg);
149 rGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
150 @Override
151 public void onCheckedChanged(RadioGroup group, int checkedId) {
152 switch (checkedId) {
153 case R.id.rd_index:
154 tabHost.setCurrentTabByTag("tab1");
155 break;
156 case R.id.rd_near:
157 tabHost.setCurrentTabByTag("tab2");
158 break;
159 case R.id.rd_own:
160 tabHost.setCurrentTabByTag("tab3");
161 break;
162 case R.id.rd_more:
163 tabHost.setCurrentTabByTag("tab4");
164 break;
165 }
166 }
167 });
168
169 }
170
171 }
172
