Comments (13)
b12kab
commented on August 11, 2024
2
@Zhuinden You were quite right - turning off the animation did the trick. I've updated the source code above to show the original instantiation of the adapter with animation = true.
Why the crash shows
columnIndex is less than 0
instead of
Animating the results requires a primaryKey
Is really very odd - and a likely defect.
The question why animation needs a primary key is a odd but separate question.
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Zhuinden
commented on August 11, 2024
Do you have a @PrimaryKey?
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thorbenprimke
commented on August 11, 2024
@matbrandao Could you add a stacktrace?
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nolsigan
commented on August 11, 2024
I had the same problem when I tried to query from realmObject by findAll()
RealmResults<Alarm> alarms = realm
.where(Alarm.class)
.findAll();I don't know if it's a same problem, but I resolved it by using findAllSorted() instead of findAll()
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b12kab
commented on August 11, 2024
I'm getting this error now. My realm class doesn't have a PrimaryKey, as it's a child in a parent / child relationship. I want to get all of the items that belong to the parent and show them.
According to Realm developer (although this is for an iOS answer), PrimaryKey's aren't needed. https://stackoverflow.com/questions/32322460/should-i-define-the-primary-key-for-each-entity-in-realm
Extrapolating the above comment from @Zhuinden , does this mean it is required for realm-recyclerview?
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Zhuinden
commented on August 11, 2024
@b12kab technically primary keys shouldn't be necessary, and findAll() should work just fine. I got a similar error back a long day ago when I tried setting a RealmList that hadn't been copied to the Realm, but that was a while ago.
I'd have to know the code, really. A complete stack trace would be useful too, and Realm version.
EDIT: oh wait, this is the thorbenprimke realm RecyclerView.
Yes, you should have a string or long primary key to use this library with your RealmObject.
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b12kab
commented on August 11, 2024
Just in case @thorbenprimke might want it.
public class RealmReview extends RealmObject {
@Index
int parentId;
String id;
String author;
String content;
String url;
Date dateAdded;
Date dateUpdated;
}
Calling the Adapter:
mAdapter = new AdapterRecyclerViewRealmMovieReviews(mContext, mMovieResults, true, true);
Adapter:
public class AdapterRecyclerViewRealmReview extends RealmBasedRecyclerViewAdapter<RealmReview,
AdapterRecyclerViewRealmReview.ViewReviewHolder> {
private Context mContext = null;
public AdapterRecyclerViewRealmReview (
Context context, RealmResults<RealmReview> realmResults,
boolean automaticUpdate, boolean animateIdType) {
super(context, realmResults, automaticUpdate, animateIdType);
resetContext(context);
}
<stuff>
void resetContext(Context context) {
if (context != null) {
mContext = context;
}
}
}
Crash
--------- beginning of crash
07-23 18:46:21.663 8822-8822/net.springtale.realmviewholderexperiment E/AndroidRuntime: FATAL EXCEPTION: main
Process: net.springtale.realmviewholderexperiment, PID: 8822
java.lang.ArrayIndexOutOfBoundsException: columnIndex is less than 0.
at io.realm.internal.TableView.nativeGetColumnType(Native Method)
at io.realm.internal.TableView.getColumnType(TableView.java:173)
at io.realm.RealmBasedRecyclerViewAdapter.<init>(RealmBasedRecyclerViewAdapter.java:172)
at io.realm.RealmBasedRecyclerViewAdapter.<init>(RealmBasedRecyclerViewAdapter.java:133)
at io.realm.RealmBasedRecyclerViewAdapter.<init>(RealmBasedRecyclerViewAdapter.java:123)
at net.springtale.realmviewholderexperiment.AdapterRecyclerViewRealmReview.<init>(AdapterRecyclerViewRealmReview.java:29)
at net.springtale.realmviewholderexperiment.FragmentMovieDetailReviews.fixAdapter(FragmentMovieDetailReviews.java:222)
at net.springtale.realmviewholderexperiment.FragmentMovieDetailReviews.resetMovieIdDetails(FragmentMovieDetailReviews.java:280)
at net.springtale.realmviewholderexperiment.FragmentMovieDetailReviews.onCreateView(FragmentMovieDetailReviews.java:175)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:2074)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1286)
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:758)
at android.support.v4.app.FragmentManagerImpl.execSingleAction(FragmentManager.java:1632)
at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:637)
at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:143)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1235)
at android.support.v4.view.ViewPager.populate(ViewPager.java:1083)
at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1609)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:18788)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
at android.view.View.measure(View.java:1878
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Zhuinden
commented on August 11, 2024
Well if you look at the source, you are crashing on this line
Which is
this.animateResults = (automaticUpdate && animateResults);
if (animateResults) {
animatePrimaryColumnIndex = realmResults.getTable().getTable().getPrimaryKey();
if (animatePrimaryColumnIndex == TableOrView.NO_MATCH) {
throw new IllegalStateException(
"Animating the results requires a primaryKey.");
}
animatePrimaryIdType = realmResults.getTable().getColumnType(animatePrimaryColumnIndex);
So you are trying to animate your results, but you don't have enough a primary key.
You can fix this by changing id to be primary key, or by disabling animating results.
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Zhuinden
commented on August 11, 2024
@b12kab reading the source of Table, it quite obviously returns -2 specified as NO_PRIMARY_KEY, but the condition here is for NO_MATCH which is -1.
By the way, the PK is required to match the two retained results against one another and determine what element changed from where to where, and to identify the elements (to determine where they moved), their ID is required.
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Zhuinden
commented on August 11, 2024
Your id field in your RealmObject though, why isn't it a primary key?
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b12kab
commented on August 11, 2024
In my current use, I don't care what the id value is - I'm only using the parentId (1 to n objects with the same parentId). I'm not positive that the review id is always unique, so I don't want to take a chance with a duplicated primary key using the id field.
In this particular case, I don't actually need that animation functionality.
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Zhuinden
commented on August 11, 2024
I see, that makes sense. If it is not guaranteed to be unique, then it shouldn't be a primary key!
anyways, I think we've solved the case :)
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Zhuinden
commented on August 11, 2024
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