在 DialogFragment 上的 onSaveInstanceState 后无法执行此操作

Posted 2023-04-15

【中文标题】在 DialogFragment 上的 onSaveInstanceState 后无法执行此操作

【英文标题】：Can not perform this action after onSaveInstanceState on DialogFragment

【发布时间】：2015-11-26 04:21:12

【问题描述】：

*** 上有几个问题，但没有一个包含 DialogFragment。通常的解决方案是使用commitAllowingStateLoss() 而不是commit()。但是对于DialogFragment，我该如何实现呢？

以下是DialogFragment的show()方法的代码。上面有ft.commit()，但我无法将其更改为commitAllowingStateLoss()

public void show(FragmentManager manager, String tag) 
    mDismissed = false;
    mShownByMe = true;
    FragmentTransaction ft = manager.beginTransaction();
    ft.add(this, tag);
    ft.commit();

这里是我如何实现DialogFragment

public class ProgressFragment extends DialogFragment 
    private String message;

    public static ProgressFragment getInstance() 
        return new ProgressFragment();
    

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) 
        ProgressDialog progressDialog = new ProgressDialog(getActivity());
        progressDialog.setCanceledOnTouchOutside(false);
        progressDialog.setCancelable(false);
        progressDialog.setIndeterminate(true);
        progressDialog.setMessage(message);

        return progressDialog;
    

    public void show(String message, FragmentManager manager, String tag) 
        this.message = message;
        show(manager, tag);
    

【问题讨论】：

是的，you can change it

【参考方案1】：

见On showing dialog i get "Can not perform this action after onSaveInstanceState":

public class ProgressFragment extends DialogFragment 

    @Override
    public void show(FragmentManager manager, String tag) 
        try 
            FragmentTransaction ft = manager.beginTransaction();
            ft.add(this, tag);
            ft.commit();
         catch (IllegalStateException e)