Question

问一个：android源代码，怎么切换版本

Answer 1

android tablayout怎么使用代码切换tab 重新设置点击事件 viewPager.setAdapter(pagerAdapter); tabLayout.setupWithViewPager(viewPager); for (int i = 0; i < tabLayout.getTabCount(); i++) { TabLayout.Tab tab = tabLayout.getTabAt(i); if (tab != null) { tab.setCustomView(pagerAdapter.getTabView(i)); if (tab.getCustomView() != null) { View tabView = (View) tab.getCustomView().getParent(); tabView.setTag(i); tabView.setOnClickListener(mTabOnClickListener); } } } viewPager.setCurrentItem(1); 处理点击事件 private View.OnClickListener mTabOnClickListener = new View.OnClickListener() { @Override public void onClick(View view) { int pos = (int) view.getTag(); if (pos == 0) { Toast.makeText(BottomTabActivity.this, "您还没有登录", Toast.LENGTH_SHORT).show(); //TODO 跳转到登录界面 } else { TabLayout.Tab tab = tabLayout.getTabAt(pos); if (tab != null) { tab.select(); } } } };