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 }

主代码

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>

layout

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>

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：