onLoadFinishe中的IlegalStateException

Question

java.lang.IllegalStateException：无法在Android.app.FragmentManagerImpl.CheckStateLoss（FragmentManager.java:1886)android.app.FragmentManagerImpl.EnqueueAction（FragmentManager.java:1905)android.app.FragmentManagerImpl.EnqueueAction（FragmentManager.java:685)android.app.BackStackRecord.CommitInternal（

为什么我会在play store控制台为我的一些用户崩溃。这不是特定于设备或操作系统的。

我没有在OnLoadFinished中做任何UI相关的事务。我正在执行ABCAsyncTask，在它的onPostExecute中，我调用pausehandler来执行UI。

另外，由于我使用了两个游标，所以onLoadFinished in在这里调用了两次。

@Override
public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
    if (cursor == null) {
        Log.e(LOG_TAG, "cursor is null");
        return;
    }


    (new ABCAsyncTask(this, cursorLoader, cursor)).execute();
}

 onPostExecute() {
    LoadItemPauseHandlerObject loadItemPauseHandlerObject = new LoadItemPauseHandlerObject ();
    Message responseMessage = new Message();
    responseMessage.what = 1; // some int
    responseMessage.obj = loadItemPauseHandlerObject;
    pauseHandler.sendMessage(responseMessage);
    }

void callOnLoadFinished(Loader<Object> loader, Object data) {
if (mCallbacks != null) {
String lastBecause = null;
if (mHost != null) {
lastBecause = mHost.mFragmentManager.mNoTransactionsBecause;
                    mHost.mFragmentManager.mNoTransactionsBecause = "onLoadFinished";
}
try {
if (DEBUG) Log.v(TAG, "  onLoadFinished in " + loader + ": "
+ loader.dataToString(data));
                    mCallbacks.onLoadFinished(loader, data);
                } finally {
if (mHost != null) {
mHost.mFragmentManager.mNoTransactionsBecause = lastBecause;
}
}
mDeliveredData = true;
}
}

Android.app.LoaderManager Android.app.Activity Android.app.Fragment

Answer 1

尝试添加检查

isAdded()

在处理程序的handleMessage()方法中，它可能位于片段中。如果你有进一步的疑问，请告诉我