实现安卓APP底部导航栏有消息圆点指示器

使用单选按钮和相对布局实现了安卓app常见的底部导航栏，带有消息圆点指示器，Tab页面切换。。。。。。。

/** Automatically generated file. DO NOT MODIFY */
package com.example.mydoctor;

public final class BuildConfig {
    public final static boolean DEBUG = true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        475  2017-07-09 11:13  demo\MyDoctor\.classpath

     文件        844  2017-07-09 11:12  demo\MyDoctor\.project

     文件        177  2017-07-09 11:12  demo\MyDoctor\.settings\org.eclipse.jdt.core.prefs

     文件        906  2017-07-09 11:15  demo\MyDoctor\AndroidManifest.xml

     文件        906  2017-07-09 11:15  demo\MyDoctor\bin\AndroidManifest.xml

     文件        349  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\BuildConfig.class

     文件        441  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$anim.class

     文件        346  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$attr.class

     文件        850  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$color.class

     文件        848  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$dimen.class

     文件       1115  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$drawable.class

     文件        951  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$id.class

     文件        582  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$layout.class

     文件        394  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$menu.class

     文件        443  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$string.class

     文件        562  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R$style.class

     文件        791  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\example\mydoctor\R.class

     文件       4809  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\mydoctor\activity\MainActivity.class

     文件        428  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\mydoctor\base\baseFragment.class

     文件       1114  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\mydoctor\fragment\HealthPageFragment.class

     文件       1152  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\mydoctor\fragment\HomePageFragment.class

     文件       1117  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\mydoctor\fragment\MessagePageFragment.class

     文件       1108  2017-07-09 17:53  demo\MyDoctor\bin\classes\com\mydoctor\fragment\MinePageFragment.class

     文件     892676  2017-07-09 17:52  demo\MyDoctor\bin\classes.dex

     文件     211326  2017-07-09 17:08  demo\MyDoctor\bin\dexedLibs\android-support-v4-526df92616f088ca41f0c9a6c93bd7a4.jar

     文件      69506  2017-07-09 17:08  demo\MyDoctor\bin\dexedLibs\gson-2.2.4-9e4e9a3ffd8a18a4c3803ccc7f7621af.jar

     文件     249514  2017-07-09 17:08  demo\MyDoctor\bin\dexedLibs\gson-2.2.4-javadoc-66ec1974fd2863c921b918480d87df7c.jar

     文件     127471  2017-07-09 17:08  demo\MyDoctor\bin\dexedLibs\gson-2.2.4-sources-56682b0e2d940c25bc44bebbbfd6398a.jar

     文件       5720  2017-07-09 17:08  demo\MyDoctor\bin\dexedLibs\xmlpull-1.1.3.1-151f461542debad918f4a8f384ad7bf9.jar

     文件      22585  2017-07-09 17:08  demo\MyDoctor\bin\dexedLibs\xpp3_min-1.1.4c-2a217e946eafd7443ee98b7d7c5c13b1.jar

............此处省略116个文件信息