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：