Fragment+BottomNavigationView实现底部导航栏demo

通过使用Fragment+BottomNavigationView共同实现Android底部导航栏的demo，解压后就可以打开，开发环境是Android Studio，CSDN不知道怎么设置下载C币和积分，需要的话联系我邮箱也行，我直接发给你，kuaijian.huc@qq.com

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * gradle plugin from the resource data it found. It
 * should not be modified by hand.
 */
package android.arch.core;

public final class R {
    private R（） {}

}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-03-23 16:33  FragmentTest\
     文件         187  2019-03-23 16:27  FragmentTest\.gitignore
     目录           0  2019-03-23 16:28  FragmentTest\.gradle\
     目录           0  2019-03-23 17:27  FragmentTest\.gradle\4.6\
     目录           0  2019-03-23 16:27  FragmentTest\.gradle\4.6\fileChanges\
     文件           1  2019-03-23 17:27  FragmentTest\.gradle\4.6\fileChanges\last-build.bin
     目录           0  2019-03-23 17:27  FragmentTest\.gradle\4.6\fileContent\
     文件          17  2019-03-23 17:27  FragmentTest\.gradle\4.6\fileContent\fileContent.lock
     目录           0  2019-03-23 16:28  FragmentTest\.gradle\4.6\fileHashes\
     文件      262519  2019-03-23 17:27  FragmentTest\.gradle\4.6\fileHashes\fileHashes.bin
     文件          17  2019-03-23 17:27  FragmentTest\.gradle\4.6\fileHashes\fileHashes.lock
     文件       21013  2019-03-23 17:27  FragmentTest\.gradle\4.6\fileHashes\resourceHashesCache.bin
     目录           0  2019-03-23 17:27  FragmentTest\.gradle\4.6\javaCompile\
     文件      906511  2019-03-23 17:27  FragmentTest\.gradle\4.6\javaCompile\classAnalysis.bin
     文件      365171  2019-03-23 17:27  FragmentTest\.gradle\4.6\javaCompile\jarAnalysis.bin
     文件          17  2019-03-23 17:27  FragmentTest\.gradle\4.6\javaCompile\javaCompile.lock
     文件      100376  2019-03-23 17:27  FragmentTest\.gradle\4.6\javaCompile\taskHistory.bin
     文件       23901  2019-03-23 17:27  FragmentTest\.gradle\4.6\javaCompile\taskJars.bin
     目录           0  2019-03-23 16:28  FragmentTest\.gradle\4.6\taskHistory\
     文件     1203107  2019-03-23 17:27  FragmentTest\.gradle\4.6\taskHistory\taskHistory.bin
     文件          17  2019-03-23 17:27  FragmentTest\.gradle\4.6\taskHistory\taskHistory.lock
     目录           0  2019-03-23 16:28  FragmentTest\.gradle\buildOutputCleanup\
     文件          17  2019-03-23 17:27  FragmentTest\.gradle\buildOutputCleanup\buildOutputCleanup.lock
     文件          51  2019-03-23 16:28  FragmentTest\.gradle\buildOutputCleanup\cache.properties
     文件       21233  2019-03-23 17:27  FragmentTest\.gradle\buildOutputCleanup\outputFiles.bin
     目录           0  2019-03-23 16:27  FragmentTest\.gradle\vcsWorkingDirs\
     文件           0  2019-03-23 16:27  FragmentTest\.gradle\vcsWorkingDirs\gc.properties
     目录           0  2019-03-23 17:28  FragmentTest\.idea\
     目录           0  2019-03-23 16:28  FragmentTest\.idea\caches\
     文件         536  2019-03-23 16:34  FragmentTest\.idea\caches\build_file_checksums.ser
     目录           0  2019-03-23 16:28  FragmentTest\.idea\codestyles\
............此处省略2486个文件信息