dialogfragment-无法在OnsaveInstancestate之后执行此操作

Question

我正在开发一个启动器应用程序，该应用程序显示用户自身身份验证时显示对话范围。在大多数情况下，这运行良好，但有时我有一个错误日志：

02-07 18:55:56.619: E/AndroidRuntime(1300): java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1280)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1291)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.BackStackRecord.commitInternal(BackStackRecord.java:548)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.BackStackRecord.commit(BackStackRecord.java:532)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.DialogFragment.dismissInternal(DialogFragment.java:292)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.DialogFragment.dismiss(DialogFragment.java:258)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at com.blablabla.android.app.fragments.login.LoginResultFragment$CloseDialogRunnable.run(LoginResultFragment.java:59)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.os.Handler.handleCallback(Handler.java:615)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.os.Handler.dispatchMessage(Handler.java:92)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.os.Looper.loop(Looper.java:137)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at android.app.ActivityThread.main(ActivityThread.java:4745)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at java.lang.reflect.Method.invokeNative(Native Method)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at java.lang.reflect.Method.invoke(Method.java:511)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-07 18:55:56.619: E/AndroidRuntime(1300):     at dalvik.system.NativeStart.main(Native Method)

例如，我在其他线程中搜索并遵循了他们的建议，但它仍然对我不起作用

我的对话fragment看起来像：

public class LoginResultFragment extends DialogFragment implements
        OnClickListener {
    private CloseDialogRunnable runnable = null;
    public class CloseDialogRunnable implements Runnable {
        /**
         * https://stackoverflow.com/questions/5844308/removecallbacks-not-
         * stopping-runnable
         */
        private boolean killCloseActivityRunnable = false;
        public void killRunnable() {
            killCloseActivityRunnable = true;
        }
        @Override
        public void run() {
            if (killCloseActivityRunnable) {
                return;
            }
            if (getDialog()!=null && getDialog().isShowing()) {             
                    dismiss();              
            }
        }
    }
    @Override
    public void onDismiss(DialogInterface dialog) {
        if (runnable != null){      
            runnable.killRunnable();
            handler.removeCallbacks(runnable);
        }
        super.onDismiss(dialog);
    }
    /** Milliseconds until we dismiss the timeout */
    private static final long DISMISSING_TIMEOUT = 2000;
    /** Dismissing window handler */
    private final Handler handler = new Handler();
    private LoginResultFragment() {
    }
    public static LoginResultFragment getInstance(
            Map<String, Object> currentValues) {
        LoginResultFragment result = new LoginResultFragment();
        set extra fields...
        return result;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NO_FRAME,
                android.R.style.Theme_Holo_Dialog);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        setRetainInstance(true);
        rootView = inflater.inflate(R.layout.fragment_login_result, container);
        getDialog().getWindow().setBackgroundDrawable(
                new ColorDrawable(android.graphics.Color.TRANSPARENT));
        do UI stuff...
        dismissAfterTimeout();
        return rootView;
    }
    private void dismissAfterTimeout() {
        runnable = new CloseDialogRunnable();
        handler.postDelayed(runnable, DISMISSING_TIMEOUT);
    }
    @Override
    public void onSaveInstanceState(Bundle outState) {
    }
}

我称其为：

final android.app.FragmentTransaction trans = activity
                .getFragmentManager().beginTransaction();
        trans.add(fragment, fragment.getClass().getCanonicalName());
        trans.commitAllowingStateLoss();

Answer 1

您可以使用以下内容：

if (!StartActivity.this.isFinishing())
{
    //showdialog fragment
}

在显示对话框之前，检查活动是否没有完成。

Answer 2

最后，问题的解决方案是修改闭合验证，这是工作代码：

public class CloseDialogRunnable implements Runnable {
    /**
     * http://stackoverflow.com/questions/5844308/removecallbacks-not-
     * stopping-runnable
     */
    private boolean killCloseActivityRunnable = false;
    public void killRunnable() {
        killCloseActivityRunnable = true;
    }
    @Override
    public void run() {
        if (killCloseActivityRunnable) {
            return;
        }
        if (getDialog() != null && getDialog().isShowing() && isResumed()) {
            try {
                dismiss();
            } catch (IllegalArgumentException e) {
                Log.e(TAG, "Error dismissing");
            }
        }
    }
}