java.lang.IllegalStateException：不能与DialogFragment后

我现在面临的问题与DialogFragment / getSupportFragmentManager / Android版本4.x版

01-10 19:46:48.228: E/AndroidRuntime(9879): java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1314)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1325)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:548)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:532)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.support.v4.app.DialogFragment.show(DialogFragment.java:127)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at com.v1.mypck.TermsAndConditions.showDialog(TermsAndConditions.java:256)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at com.v1.mypck.TermsAndConditions.handleMessage(TermsAndConditions.java:62)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at com.v1.mypck.TermsAndConditions$IncomingHandler.handleMessage(TermsAndConditions.java:53)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.os.Handler.dispatchMessage(Handler.java:99)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.os.Looper.loop(Looper.java:137)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at android.app.ActivityThread.main(ActivityThread.java:4441)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at java.lang.reflect.Method.invokeNative(Native Method)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at java.lang.reflect.Method.invoke(Method.java:511)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
01-10 19:46:48.228: E/AndroidRuntime(9879):     at dalvik.system.NativeStart.main(Native Method)

在下面的代码时，我按回到它试图完成当前活动，并回到它抛出上述错误之前的活动。

代码工作以及对旧版本（4.x版之前）。

有人可以指导我在正确的方向。

public class TermsAndConditions extends SherlockFragmentActivity implements LoaderManager.LoaderCallbacks<JSONObject>{
    static final String TAG = "TermsAndConditions";
    private static int titleResource;
    private static int messageResource;

    private IncomingHandler handler = null;
    private static final int SHOW_NETWORK_DIALOG = 3;

    static class IncomingHandler extends Handler {
        private final WeakReference<TermsAndConditions> mTarget; 

        IncomingHandler(TermsAndConditions target) {
            mTarget = new WeakReference<TermsAndConditions>(target);
        }

        @Override
        public void handleMessage(Message msg) {
            TermsAndConditions target = mTarget.get();
            if (target != null) {
                target.handleMessage(msg);
            }
        }
    }
    public void handleMessage(Message msg) {
        switch (msg.what)  {
            case SHOW_NETWORK_DIALOG:
                titleResource = R.string.msg_alert_no_network_title;
                messageResource = R.string.msg_alert_no_network_message;
                showDialog();
                break;
        }
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.web_view);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportLoaderManager().initLoader(0, null, this);
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                finish();
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }
    private void loadViewData() {
        //Logic to load content.
    }

    @Override
    public Loader<JSONObject> onCreateLoader(int arg0, Bundle arg1) {
        if (handler == null){
            handler = new IncomingHandler(TermsAndConditions.this);
        }
        return new JsonLoader(this);
    }

    @Override
    public void onLoadFinished(Loader<JSONObject> arg0, JSONObject jsonData) {
        if(jsonDataObject==null || jsonDataObject.length()==0) {
            handler.sendEmptyMessage(SHOW_NETWORK_DIALOG);
        } else {
            loadViewData();
        }
    }

    @Override
    public void onLoaderReset(Loader<JSONObject> arg0) {
        if(jsonDataObject==null || jsonDataObject.length()==0) {
            handler.sendEmptyMessage(SHOW_NETWORK_DIALOG);
        } else {
            loadViewData();
        }
    }

    public static class JsonLoader extends AsyncTaskLoader<JSONObject> {
        public JsonLoader(Context context) {
            super(context);
        }

        @Override 
        protected void onStartLoading() {
            if (jsonDataObject != null) {
                deliverResult(jsonDataObject);
            }
            if (takeContentChanged() || jsonDataObject == null) {
                forceLoad();
            }
        }

        @Override
        public JSONObject loadInBackground() {
            try {
                return response.getJSONObject("result");
            } catch (JSONException e) {
                return null;
            } catch (Throwable e) {
                return null;
            }
        }

        @Override 
        public void deliverResult(JSONObject newJsonData) {
            if (isReset()) {
                if (jsonDataObject != null) {
                    onReleaseResources(jsonDataObject);
                }
            }
            JSONObject oldData = jsonDataObject;
            jsonDataObject = newJsonData;
            if (isStarted()) {
                super.deliverResult(jsonDataObject);
            }
            if (oldData != null) {
                onReleaseResources(oldData);
            }
        }

        @Override 
        protected void onStopLoading() {
            cancelLoad();
        }

        @Override public void onCanceled(JSONObject jsonData) {
            super.onCanceled(jsonData);
            onReleaseResources(jsonData);
        }

        @Override protected void onReset() {
            super.onReset();
            onStopLoading();
            if (jsonDataObject != null) {
                onReleaseResources(jsonDataObject);
                jsonDataObject = null;
            }
        }

        protected void onReleaseResources(JSONObject jsonData) {
            jsonData = null;
        }
    }
    public static class MyAlertDialogFragment extends DialogFragment {
        public static MyAlertDialogFragment newInstance(int title) {
            MyAlertDialogFragment frag = new MyAlertDialogFragment();
            Bundle args = new Bundle();
            args.putInt("title", title);
            frag.setArguments(args);
            return frag;
        }

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            int title = getArguments().getInt("title");
            return new AlertDialog.Builder(getActivity())
                    .setTitle(title)
                    .setMessage(messageResource)
                    .setPositiveButton(R.string.alert_dialog_ok,
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int whichButton) {

                            }
                        }
                    )
                    .create();
        }
    }
    public void showDialog() {
        DialogFragment newFragment = MyAlertDialogFragment.newInstance(titleResource);
        newFragment.show(getSupportFragmentManager(), "my_dialog");
    }
}

Answer 1:

这里是另一个线程的答案：

在onActivityResult行动和“后的onSaveInstanceState错误无法执行此操作”

也在这里：

清爽不喜欢的工作我还以为是我的片断应该

这是一个例子解决这个问题：

DialogFragment loadingDialog = createDialog();

FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
                    transaction.add(loadingDialog, "loading");
                    transaction.commitAllowingStateLoss();  

Answer 2:

我得到了同样的问题，我作为波纹管改变了代码

newFragment.show(transactionFragment, "dialog");

至：

transactionFragment.add(android.R.id.content, newFragment).addToBackStack(null).commitAllowingStateLoss();

已完成的代码，很适合我的波纹管，希望帮助

FragmentTransaction transactionFragment = getActivity().getSupportFragmentManager().beginTransaction();
    DialogPageListFragment newFragment = new DialogPageListFragment();
    transactionFragment.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
    newFragment.setArguments(extras);
    transactionFragment.add(android.R.id.content, newFragment).addToBackStack(null).commitAllowingStateLoss();

Answer 3:

也许，就是响应的handleMessage处理程序相关联的破坏活动。

即：如果您旋转屏幕，旧的破坏活动将处理消息，那么您将调用的ShowDialog，并会抛出异常：

您正在创建一个对话框老销毁活动已叫他以后的onSaveInstanceState。

尝试更换回调，与新创建的活动，以确保您在活动状态的活动总是创建对话框。

---

如果你不旋转，把国旗onSaveInstance像“拯救”，并禁用它onRestoreInstance。 在你的handleMessage方法，如果标志“节能”是，不显示对话框，只需打开另一个标志，指示必须的onResume创建对话框。 然后在的onResume方法，检查是否在这个过程中间，你应该创建对话框，如果是，表明它的onResume方法。

Answer 4:

fragmentView.post(() -> {
            FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
            YourDialog yourDialog = YourDialog.newInstance();
            yourDialog.show(ft, "text_data");
        });

post（）方法在这种情况下，我们的目标是等待活动或片段的的onResume（）将结束。 如果你想显示的片段，FE DialogFragment当你想展示你的对话框的系统对话框后，驳回它的工作原理。

Answer 5:

我面临着同样的问题，当后延迟的Runnable handler.postDelayed（Runnable接口可运行，拖延已久的）。

我已经解决了这个问题是这样的：

1. 在我的onSaveInstanceState取消延迟任务
2. 在onRestoreInstanceState我重新创建任务，如果出现了延迟任务活动时被摧毁

Answer 6:

太晚了答案，但可能是正确的答案。 我做了一个父类，和对话片段从它延伸

 public class BaseDialogFragment extends DialogFragment {

@Override
public void show(FragmentManager manager, String tag) {
    try {
        FragmentTransaction ft = manager.beginTransaction();
        ft.add(this, tag).addToBackStack(null);
        ft.commitAllowingStateLoss();
    } catch (IllegalStateException e) {
        Log.d("ABSDIALOGFRAG", "Exception", e);
    }
}

boolean mIsStateAlreadySaved = false;
boolean mPendingShowDialog = false;

@Override
public void onResume() {
    onResumeFragments();
    super.onResume();
}

public void onResumeFragments(){
    mIsStateAlreadySaved = false;
    if(mPendingShowDialog){
        mPendingShowDialog = false;
        showSnoozeDialog();
    }
}

@Override
public void onPause() {
    super.onPause();
    mIsStateAlreadySaved = true;
}

private void showSnoozeDialog() {
    if(mIsStateAlreadySaved){
        mPendingShowDialog = true;
    }else{
        FragmentManager fm = getFragmentManager();
        BaseDialogFragment snoozeDialog = new BaseDialogFragment();
        snoozeDialog.show(fm, "BaseDialogFragment");
    }
}

}

Answer 7:

onPostResume（）使用后恢复的方法做你的工作。我认为你调用onRestart或表演的onResume方法对话框，所以要避免它，并使用onPostResume（）来显示你的对话框。

Answer 8:

你可以检查当前的活动isActive（），只有在这种情况下开始DialogFragment的片段交易。 我有一个类似的问题，这个检查解决了我的情况。

Answer 9:

有用：

CheckinSuccessDialog dialog = new CheckinSuccessDialog();
//dialog.show(getSupportFragmentManager(), null);
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.add(dialog, null);
ft.commitAllowingStateLoss();

但是，却依然不好，因为遇到错误“活动已被破坏”

 ava.lang.IllegalStateException: Activity has been destroyed fragmentTransaction.commitAllowingStateLoss();

所以我的解决办法是增加检查if (!isFinishing()&&!isDestroyed())

CheckinSuccessDialog fragment = CheckinSuccessDialog.newInstance();

  if (fragment instanceof DialogFragment) {
                DialogFragment dialog = (DialogFragment) fragment;
                if (!dialog.isAdded()) {
                    fragmentTransaction.add(dialog, 
                          CheckinSuccessDialog.class.getName());
                    if (!isFinishing()&&!isDestroyed()) {
                        fragmentTransaction.commitAllowingStateLoss();
                    }
                }

在解雇：

  FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
            Fragment fragment = getSupportFragmentManager().findFragmentByTag(CheckinSuccessDialog.class.getName());
            if (fragment != null && fragment instanceof DialogFragment) {
                DialogFragment dialog = (DialogFragment) fragment;
                dialog.dismiss();
                if (!isFinishing()&&!isDestroyed()) {
                    fragmentTransaction.commitAllowingStateLoss();
                }
            }

Answer 10:

活动中，显示该对话框之前，你可以做这样的事情

getSupportFragmentManager().executePendingTransactions();

这为我工作。

文章来源: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState with DialogFragment