关于安卓开发实现底部菜单栏（已过时做法，不建议使用）
将TabHost的标签放在底部
直接上代码
主代码：
1 package sdut;
2
3 import com.example.sdutfriends.R;
4
5 import android.app.AlertDialog;
6 import android.app.TabActivity;
7 import android.content.DialogInterface;
8 import android.content.Intent;
9 import android.os.Bundle;
10 import android.view.KeyEvent;
11 import android.view.Window;
12 import android.widget.RadioGroup;
13 import android.widget.RadioGroup.OnCheckedChangeListener;
14 import android.widget.TabHost;
15 import android.widget.TabHost.TabSpec;
16
17 public class SdutMainActivity extends TabActivity{
18 private TabHost mth;
19 private RadioGroup radioGroup;
20 @Override
21 protected void onCreate(Bundle savedInstanceState) {
22 // TODO Auto-generated method stub
23 super.onCreate(savedInstanceState);
24 //去除标题
25 requestWindowFeature(Window.FEATURE_NO_TITLE);
26 setContentView(R.layout.sdut_activity);
27
28 //初始化底部菜单栏
29 mth = this.getTabHost();
30
31 TabSpec str1 = mth.newTabSpec("function_1").setIndicator("功能1");
32 str1.setContent(new Intent(SdutMainActivity.this,SdutFindOldman.class));
33 mth.addTab(str1);
34
35 TabSpec str2 = mth.newTabSpec("function_2").setIndicator("功能2");
36 str2.setContent(new Intent(SdutMainActivity.this,SdutFindActivity.class));
37 mth.addTab(str2);
38
39 TabSpec str3 = mth.newTabSpec("function_3").setIndicator("功能3");
40 str3.setContent(new Intent(SdutMainActivity.this,SdutFindOldman.class));
41 mth.addTab(str3);
42
43 TabSpec str4 = mth.newTabSpec("function_4").setIndicator("功能4");
44 str4.setContent(new Intent(SdutMainActivity.this,SdutFindOldman.class));
45 mth.addTab(str4);
46
47 TabSpec str5 = mth.newTabSpec("function_5").setIndicator("功能5");
48 str5.setContent(new Intent(SdutMainActivity.this,SdutFindOldman.class));
49 mth.addTab(str5);
50
51 //底部菜单栏点击事件
52 radioGroup = (RadioGroup) findViewById(R.id.main_radio);
53 radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
54
55 @Override
56 public void onCheckedChanged(RadioGroup group, int checkedId) {
57 // TODO Auto-generated method stub
58 switch(checkedId)
59 {
60 case R.id.radio_button0:mth.setCurrentTabByTag("function_1");break;
61 case R.id.radio_button1:mth.setCurrentTabByTag("function_2");break;
62 case R.id.radio_button2:mth.setCurrentTabByTag("function_3");break;
63 case R.id.radio_button3:mth.setCurrentTabByTag("function_4");break;
64 case R.id.radio_button4:mth.setCurrentTabByTag("function_5");break;
65
66 }
67 }
68 });
69 }
70
71 //设置 返回键的 按钮响应事件
72 @Override
73 public boolean dispatchKeyEvent(KeyEvent event) {
74 // TODO Auto-generated method stub
75 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getKeyCode() == KeyEvent.KEYCODE_BACK)
76 {
77 new AlertDialog.Builder(this).setCancelable(false).setTitle("温馨提示").setMessage("您确定要退出吗?").setPositiveButton("确定", new DialogInterface.OnClickListener()
78 {
79 public void onClick(DialogInterface dialog, int which)
80 {
81 finish();
82 }
83 }).setNegativeButton("取消", new DialogInterface.OnClickListener()
84 {
85 public void onClick(DialogInterface dialog, int which)
86 {
87 }
88 }).show();
89 return true;// 不知道返回true或是false有什么区别??
90 }
91
92 return super.dispatchKeyEvent(event);
93 }
94 }layout代码
1 <?xml version="1.0" encoding="utf-8"?>
2 <TabHost xmlns:android="http://schemas.android.com/apk/res/android"
3 android:id="@android:id/tabhost"
4 android:layout_width="fill_parent"
5 android:layout_height="fill_parent"
6 android:background="#334455" > //总体的背景 可以是图片 可以是颜色
7 <LinearLayout
8 android:layout_width="fill_parent"
9 android:layout_height="fill_parent"
10 android:orientation="vertical"
11 >
12 <FrameLayout
13 android:id="@+id/msg_title"
14 android:layout_width="fill_parent"
15 android:layout_height="wrap_content"
16 android:visibility="gone"
17 >
18 <TextView
19 android:id="@+id/tv_wb"
20 android:layout_width="fill_parent"
21 android:layout_height="wrap_content"
22 android:background="@color/白色"/>
23 </FrameLayout>
24 <FrameLayout
25 android:id="@android:id/tabcontent"
26 android:layout_width="fill_parent"
27 android:layout_height="0.0dip"
28 android:layout_weight="1.0"
29 />
30 <TabWidget
31 android:id="@android:id/tabs"
32 android:layout_width="fill_parent"
33 android:layout_height="wrap_content"
34 android:layout_weight="0.0"
35 android:visibility="gone" />
36 <RadioGroup
37 android:id="@+id/main_radio"
38 android:layout_width="fill_parent"
39 android:layout_height="45dp"
40 android:layout_gravity="bottom"
41
42 android:gravity="center_vertical"
43 android:orientation="horizontal" >
44 <RadioButton
45 android:id="@+id/radio_button0"
46 style="@style/main_tab_bottom"
47 android:layout_height="fill_parent"
48 android:layout_marginTop="2.0dip"
49 android:textColor="@color/白色"
50 android:background="@color/黑色"
51 android:drawableTop="@drawable/icon" //将图片放在文字上
52 android:tag="radio_button0"
53 android:text="标签1" />
54 <RadioButton
55 android:id="@+id/radio_button1"
56 style="@style/main_tab_bottom"
57 android:layout_height="fill_parent"
58 android:layout_marginTop="2.0dip"
59 android:tag="radio_button1"
60 android:textColor="@color/白色"
61 android:background="@color/黑色"
62 android:drawableTop="@drawable/icon"
63 android:text="标签2" />
64 <RadioButton
65 android:id="@+id/radio_button2"
66 style="@style/main_tab_bottom"
67 android:layout_height="fill_parent"
68 android:layout_marginTop="2.0dip"
69 android:textColor="@color/白色"
70 android:background="@color/黑色"
71 android:drawableTop="@drawable/icon"
72 android:tag="radio_button2"
73 android:text="标签3" />
74 <RadioButton
75 android:id="@+id/radio_button3"
76 style="@style/main_tab_bottom"
77 android:layout_height="fill_parent"
78 android:layout_marginTop="2.0dip"
79 android:textColor="@color/白色"
80 android:background="@color/黑色"
81 android:drawableTop="@drawable/icon"
82 android:tag="radio_button3"
83 android:text="标签4" />
84 <RadioButton
85 android:id="@+id/radio_button4"
86 style="@style/main_tab_bottom"
87 android:layout_height="fill_parent"
88 android:layout_marginTop="2.0dip"
89 android:textColor="@color/白色"
90 android:background="@color/黑色"
91 android:drawableTop="@drawable/icon"
92 android:tag="radio_button4"
93 android:text="标签5" />
94 </RadioGroup>
95
96
97 </LinearLayout>
98
99
100
101 </TabHost>style.xml部分增加代码
1 <style name="main_tab_bottom">
2 <item name="android:textSize">10.0dip</item>
3 <item name="android:textColor">#ffffffff</item>
4 <item name="android:ellipsize">marquee</item>
5 <item name="android:gravity">center_horizontal</item>
6 <item name="android:paddingTop">1.0dip</item>
7 <item name="android:layout_width">fill_parent</item>
8 <item name="android:layout_height">fill_parent</item>
9 <item name="android:button">@null</item>
10 <item name="android:singleLine">true</item>
11 <item name="android:drawablePadding">1.0dip</item>
12 <item name="android:layout_weight">1.0</item>
13 </style>color.xml部分
<resources>
<color name="黑色">#000000</color>
<color name="白色">#FFFFFF</color>
</resources>TabSpec str1 = mth.newTabSpec("function_1").setIndicator("功能1"); str1.setContent(new Intent(SdutMainActivity.this,SdutFindOldman.class)); mth.addTab(str1); TabSpec str2 = mth.newTabSpec("function_2").setIndicator("功能2"); str2.setContent(new Intent(SdutMainActivity.this,SdutFindActivity.class)); mth.addTab(str2);
这里的SdutFindOldman.class，，，SdutFindActivity.class代码就不贴了
效果图：
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原始发表：2013-06-04 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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