Question

我有以下代码：

 private void doLogin(String username, String password) {
    authManager.userLogout();
    subscribe(authManager.login(username, password)
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .doOnSubscribe(() -> showProgress(R.string.authenticating_label, true))
            .subscribe(userObject -> {
                showProgress(false);
                if (userObject != null ) {
                    loginSuccess(userObject.loginName, userObject.password, userObject.authToken);
                } else {
                    loginFailed(username, password, null);
                }
            }, throwable -> {
                Timber.d(throwable, "Error while Login!");
                showProgress(false);
                loginFailed(username, password, null);
            })
    );

}

loginFailed方法执行简单的DialogFragment show：

android.support.v4.app.DialogFragment.show

不幸的是，我可以看到在某些Android 8.0和8.1设备上引发了异常：

java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1842)

＆＃13;

29Caused by: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
30at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1842)
31at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1860)
32at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:650)
33at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:609)
34at android.support.v4.app.DialogFragment.dismissInternal(DialogFragment.java:205)
35at android.support.v4.app.DialogFragment.dismiss(DialogFragment.java:171)
36at com.cubesoft.zenfolio.browser.activity.BaseActivity.showProgressInternal(BaseActivity.java:205)
37at com.cubesoft.zenfolio.browser.activity.BaseActivity.showProgress(BaseActivity.java:199)
38at com.cubesoft.zenfolio.browser.activity.BaseActivity.showProgress(BaseActivity.java:194)
39at com.cubesoft.zenfolio.browser.activity.LoginActivity.lambda$doLogin$7(LoginActivity.java:200)
40at com.cubesoft.zenfolio.browser.activity.LoginActivity.access$lambda$7(Unknown Source:0)
41at com.cubesoft.zenfolio.browser.activity.LoginActivity$$Lambda$8.call(Unknown Source:8)

＆＃13;

从我所看到的，Activity的状态不是丢失（我们不处于pause / resume / onActivityResult状态）。可能是什么原因？

在RxJava订阅中的onSaveInstanceState之后无法执行此操作

0 个答案: