将图标添加到viewPager中的选项卡

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <com.google.android.material.tabs.TabLayout
        android:id="@+id/tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMode="fixed"
        app:tabGravity="fill"
        app:tabIndicatorHeight="0dp"
        app:tabBackground="@color/colorPrimary"/>

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/viewPager"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintTop_toBottomOf="@id/tabLayout"
        app:layout_constraintBottom_toBottomOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

public class MainActivity extends AppCompatActivity {

    private ViewPager viewPager;
    private TabLayout tabLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        viewPager = findViewById(R.id.viewPager);
        tabLayout = findViewById(R.id.tabLayout);

        PagerAdapter pagerAdapter = new MyPagerAdapter(getSupportFragmentManager());
        viewPager.setAdapter(pagerAdapter);
        tabLayout.setupWithViewPager(viewPager);
    }

    private class MyPagerAdapter extends FragmentPagerAdapter {

        private String[] titles = {"Tab 1", "Tab 2", "Tab 3"};
        private int[] icons = {R.drawable.ic_tab1, R.drawable.ic_tab2, R.drawable.ic_tab3};

        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @NonNull
        @Override
        public Fragment getItem(int position) {
            // 返回对应位置的Fragment实例
            return MyFragment.newInstance(position);
        }

        @Override
        public int getCount() {
            return titles.length;
        }

        @Nullable
        @Override
        public CharSequence getPageTitle(int position) {
            // 返回对应位置的选项卡标题（包含图标和文字）
            Drawable icon = ContextCompat.getDrawable(MainActivity.this, icons[position]);
            icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
            SpannableString spannableString = new SpannableString(" " + titles[position]);
            ImageSpan imageSpan = new ImageSpan(icon, ImageSpan.ALIGN_BOTTOM);
            spannableString.setSpan(imageSpan, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            return spannableString;
        }
    }
}

public class MyFragment extends Fragment {

    private static final String ARG_POSITION = "position";

    public static MyFragment newInstance(int position) {
        MyFragment fragment = new MyFragment();
        Bundle args = new Bundle();
        args.putInt(ARG_POSITION, position);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_my, container, false);
        TextView textView = rootView.findViewById(R.id.textView);
        int position = getArguments().getInt(ARG_POSITION);
        textView.setText("This is Tab " + (position + 1));
        return rootView;
    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24sp"/>

</LinearLayout>