TabLayout标题文字不显示的解决操作

 @Override
 public CharSequence getPageTitle(int position) {
  return mList_title.get(position);
 }

<android.support.design.widget.TabLayout
 android:id="@+id/fh_tab"
 app:tabIndicatorColor="@android:color/white"
 android:layout_marginTop="20dp"
 android:layout_below="@id/fh_title"
 android:layout_alignBottom="@+id/fh_iv"
 app:tabIndicatorHeight="4dp"
 app:tabTextColor="@color/tab_un_select"
 app:tabSelectedTextColor="@android:color/white"
 app:tabIndicatorFullWidth="false"
 android:layout_width="match_parent"
 android:layout_height="wrap_content">
 
 <android.support.design.widget.TabItem
  android:text="热点"
  android:icon="@drawable/ic_fire_gray"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
 <android.support.design.widget.TabItem
  android:text="要闻"
  android:icon="@drawable/ic_news_state"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
 <android.support.design.widget.TabItem
  android:text="时政"
  android:icon="@drawable/ic_politics_state"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
 <android.support.design.widget.TabItem
  android:text="热点"
  android:icon="@drawable/ic_fire_gray"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
 <android.support.design.widget.TabItem
  android:text="粤头条"
  android:icon="@drawable/ic_first_state"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
 <android.support.design.widget.TabItem
  android:text="分类"
  android:icon="@drawable/ic_classify_state"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
</android.support.design.widget.TabLayout>

<LinearLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:gravity="center"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content">
 
 <ImageView
  android:id="@+id/iv"
  android:src="@drawable/ic_relative_true"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
 <TextView
  android:layout_marginTop="3dp"
  android:textColor="@color/font2"
  android:id="@+id/tv"
  android:textSize="13sp"
  android:text="title"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content" />
 
</LinearLayout>

protected void init(){
 fhPager.setAdapter(adapter);
 fhPager.setCurrentItem(0);
 fhPager.setOffscreenPageLimit(1);
 fhTab.setSelectedTabIndicator(R.drawable.bg_submit);
 fhTab.setupWithViewPager(fhPager);

 Objects.requireNonNull(fhTab.getTabAt(0)).setCustomView(getview("热点", R.drawable.ic_fire_state));
 Objects.requireNonNull(fhTab.getTabAt(1)).setCustomView(getview("要闻", R.drawable.ic_news_state));
 Objects.requireNonNull(fhTab.getTabAt(2)).setCustomView(getview("时政", R.drawable.ic_politics_state));
 Objects.requireNonNull(fhTab.getTabAt(3)).setCustomView(getview("粤头条", R.drawable.ic_fire_state));
 Objects.requireNonNull(fhTab.getTabAt(4)).setCustomView(getview("分类", R.drawable.ic_classify_state));
}

private View getview(String title, int icon) {
 View view = LayoutInflater.from(getActivity()).inflate(R.layout.item_home_tab, null);
 TextView tv = view.findViewById(R.id.tv);
 ImageView iv = view.findViewById(R.id.iv);
 tv.setText(title);
 iv.setImageResource(icon);
 return view;
}

fhPager.setAdapter(adapter);
fhPager.setCurrentItem(0);
fhPager.setOffscreenPageLimit(1);
fhTab.setSelectedTabIndicator(R.drawable.bg_submit);
fhTab.setupWithViewPager(fhPager);
 
//设置tabItem的文字和icon
fhTab.getTabAt(0).setText("热点").setIcon(R.drawable.ic_fire_state);
fhTab.getTabAt(1).setText("要闻").setIcon(R.drawable.ic_news_state);
fhTab.getTabAt(2).setText("时政").setIcon(R.drawable.ic_politics_state);
fhTab.getTabAt(3).setText("粤头条").setIcon(R.drawable.ic_first_state);
fhTab.getTabAt(4).setText("分类").setIcon(R.drawable.ic_classify_state);

//指示器长度
public static void setIndicator(TabLayout tabs, int leftDip, int rightDip, int bottomDip) {
 if (tabs == null) {
  return;
 }
 Class<? extends TabLayout> tabLayout = tabs.getClass();
 
 Field tabStrip = null;
 try {
  tabStrip = tabLayout.getDeclaredField("mTabStrip");
 } catch (NoSuchFieldException e) {
  e.printStackTrace();
  return;
 }
 tabStrip.setAccessible(true);
 LinearLayout llTab = null;
 try {
  llTab = (LinearLayout) tabStrip.get(tabs);
 } catch (IllegalAccessException e) {
  e.printStackTrace();
  return;
 }
 int left = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, leftDip, Resources.getSystem().getDisplayMetrics());
 int right = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, rightDip, Resources.getSystem().getDisplayMetrics());
 int bottom = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, bottomDip, Resources.getSystem().getDisplayMetrics());
 for (int i = 0; i < llTab.getChildCount(); i++) {
  View child = llTab.getChildAt(i);
  child.setPadding(0, 0, 0, 0);
  LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.MATCH_PARENT, 1);
  params.leftMargin = left;
  params.rightMargin = right;
  params.bottomMargin = bottom;
  child.setLayoutParams(params);
  child.invalidate();
 }
}