package com.example.aleks.example_tablayout; import android.support.design.widget.TabLayout; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TabLayout tabLayout = new TabLayout(this); tabLayout.addTab(tabLayout.newTab().setText("Tab 1")); tabLayout.addTab(tabLayout.newTab().setText("Tab 2")); tabLayout.addTab(tabLayout.newTab().setText("Tab 3")); } }

Why are the tabs not programmatically displayed? When I do the markup everything is fine.

    1 answer 1

    You have created an instance of tabs, but have not added it to the markup. Therefore it is not displayed. You need to add it programmatically to the screen layout.