<pre lang="java"> public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_item, menu); this.menu = menu; MenuItem item = menu.findItem(R.id.action_search); searchView.setMenuItem(item); return true; } viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {} @Override public void onPageSelected(int position) {if(position==0){searchView.setVisibility(View.VISIBLE); MenuItem item2 = menu.findItem(R.id.action_search); item2.setIcon(R.drawable.ic_action_action_search); item2.setVisible(true); toolbar.setTitle("Danh Sách Bài Hát"); } if(position==1){ searchView.setVisibility(View.INVISIBLE); searchView.clearFocus(); searchView.closeSearch(); MenuItem item2 = menu.findItem(R.id.action_search); item2.setIcon(null); toolbar.setTitle("Bài Hát Yêu Thích"); }if(position==2){//searchView.setVisibility(View.INVISIBLE); searchView.setVisibility(View.VISIBLE); MenuItem item2 = menu.findItem(R.id.action_search); item2.setIcon(R.drawable.ic_action_action_search); item2.setVisible(true); toolbar.setTitle("Địa điểm âm nhạc");} if(position==3){searchView.setVisibility(View.INVISIBLE);MenuItem item2 = menu.findItem(R.id.action_search);item2.setVisible(false); toolbar.setTitle("Hướng dẫn sử dụng"); }} @Override public void onPageScrollStateChanged(int state) { } }); tabLayout = (TabLayout) findViewById(R.id.tabs); tabLayout.setupWithViewPager(viewPager); setupTabIcons(); }
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