二. TabLayout 主方法

 @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //在使用时，先导入依赖库 ....design...

        TabLayout tabLayout= (TabLayout) findViewById(R.id.mytab);

        //添加选项卡

        for(int i=0;i<10;i++){

            tabLayout.addTab(tabLayout.newTab().setText("选项卡"+i));

        }

        //设置监听事件

        tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {

            //选项卡被选中

            @Override

            public void onTabSelected(TabLayout.Tab tab) {

                Toast.makeText(MainActivity.this,tab.getText().toString(),Toast.LENGTH_SHORT).show();

            }

            @Override

            public void onTabUnselected(TabLayout.Tab tab) {

            }

            @Override

            public void onTabReselected(TabLayout.Tab tab) {

            }

        });

    }