fragment使用

Fragment动态切换

private FragmentTransaction switchFragment(Fragment targetFragment) {
   FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
   if (!targetFragment.isAdded()) {
      //第一次使用switchFragment()时currentFragment为null，所以要判断一下
      if (currentFragment != null) {
         transaction.hide(currentFragment);
      }
      transaction.add(R.id.right_layout, targetFragment, targetFragment.getClass().getName());

   } else {
      transaction
            .hide(currentFragment)
            .show(targetFragment);
   }
   currentFragment = targetFragment;

   return transaction;
}

Fragment显示和隐藏判断

@Override
	public void onHiddenChanged(boolean hidden) {
		super.onHiddenChanged(hidden);
		if (hidden) {
			isVisible = false;
		} else {
			isVisible = true;
		}
	}
	注意第一次加载不会调用，在onCreateView中设置isVisible = true;

CATALOG

FEATURED TAGS

FRIENDS