android fragment对同一id replace几次后，就偶尔显示空白，随机发生

Posted 2023-02-25

O(∩_∩)O哈哈~，解决了

参考技术A 可以通过FragmentTransaction的attach和detach来实现。
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
if (mLastFragment != null)
//detach上一次的fragment
fragmentTransaction.detach(mLastFragment);

//找到fragment，findFragmentByTag是自定义的方法
Fragment fragment = fragmentManager.findFragmentByTag(tabName);
if (fragment == null)
//add
fragmentTransaction.add(R.id.layout_fragment_id, fragment, tabName);
else
//attach
fragmentTransaction.attach(fragment);

//保存这个fragment
mLastFragment = fragment;
//事务commit
fragmentTransaction.commitAllowingStateLoss();
fragmentManager.executePendingTransactions();追问

还是不行额