Android TabLayout的Indicator设置为图片

TabLayout我相信大家都有使用过，但是官方并没有对Indicator可以设置为图片的支持，只能是简单的水平线，也就是滑动杆那个玩意，那么如何做到可以用图片来做**指示器**呢？

/**
 * Automatically generated file. DO NOT MODIFY
 */
package com.github.xwc.tablayoutindecato;

public final class BuildConfig {
  public static final boolean DEBUG = Boolean.parseBoolean（“true“）;
  public static final String APPLICATION_ID = “com.github.xwc.tablayoutindecato“;
  public static final String BUILD_TYPE = “debug“;
  public static final String FLAVOR = ““;
  public static final int VERSION_CODE = 1;
  public static final String VERSION_NAME = “1.0“;
}

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

     文件        127  2018-06-06 16:45  TabLayoutIndecato\.gitignore

     文件          1  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\fileChanges\last-build.bin

     文件         17  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\fileContent\fileContent.lock

     文件     180492  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\fileHashes\fileHashes.bin

     文件         17  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\fileHashes\fileHashes.lock

     文件      20163  2018-06-06 16:52  TabLayoutIndecato\.gradle\4.1\fileHashes\resourceHashesCache.bin

     文件    1062710  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\javaCompile\classAnalysis.bin

     文件     418977  2018-06-06 16:52  TabLayoutIndecato\.gradle\4.1\javaCompile\jarAnalysis.bin

     文件         17  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\javaCompile\javaCompile.lock

     文件     199290  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\javaCompile\taskHistory.bin

     文件      21444  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\javaCompile\taskJars.bin

     文件    1653031  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\taskHistory\fileSnapshots.bin

     文件      55924  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\taskHistory\taskHistory.bin

     文件         17  2018-06-06 17:08  TabLayoutIndecato\.gradle\4.1\taskHistory\taskHistory.lock

     文件          0  2018-06-06 16:45  TabLayoutIndecato\.gradle\buildOutputCleanup\built.bin

     文件         51  2018-06-06 16:45  TabLayoutIndecato\.gradle\buildOutputCleanup\cache.properties

     文件          2  2018-06-06 17:08  TabLayoutIndecato\.gradle\buildOutputCleanup\cache.properties.lock

     文件        608  2018-06-06 16:45  TabLayoutIndecato\.idea\checkstyle-idea.xml

     文件        626  2018-06-06 16:45  TabLayoutIndecato\.idea\gradle.xml

     文件        264  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\android_android_26.xml

     文件        533  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\android_arch_core_common_1_0_0_jar.xml

     文件        548  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\android_arch_lifecycle_common_1_0_0_jar.xml

     文件        658  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\android_arch_lifecycle_runtime_1_0_0.xml

     文件        742  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\com_android_support_animated_vector_drawable_26_1_0.xml

     文件        682  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\com_android_support_appcompat_v7_26_1_0.xml

     文件        501  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\com_android_support_constraint_constraint_layout_1_1_0.xml

     文件        425  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\com_android_support_constraint_constraint_layout_solver_1_1_0_jar.xml

     文件        651  2018-06-06 16:51  TabLayoutIndecato\.idea\libraries\com_android_support_design_26_1_0.xml

     文件        697  2018-06-06 16:51  TabLayoutIndecato\.idea\libraries\com_android_support_recyclerview_v7_26_1_0.xml

     文件        608  2018-06-06 16:50  TabLayoutIndecato\.idea\libraries\com_android_support_support_annotations_26_1_0_jar.xml

............此处省略1424个文件信息