GravitySnapHelper | A SnapHelper that snaps a RecyclerView to an edge. | RecyclerView library

by rubensousa Java Version: 2.2.1 License: Apache-2.0

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kandi X-RAY | GravitySnapHelper Summary

GravitySnapHelper is a Java library typically used in User Interface, RecyclerView applications. GravitySnapHelper has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub, Maven.

A SnapHelper that snaps a RecyclerView to an edge.

Support

Quality

Security

License

Reuse

kandi-support Support

GravitySnapHelper has a medium active ecosystem.
It has 4727 star(s) with 606 fork(s). There are 97 watchers for this library.
It had no major release in the last 12 months.
There are 5 open issues and 57 have been closed. On average issues are closed in 118 days. There are no pull requests.
It has a neutral sentiment in the developer community.
The latest version of GravitySnapHelper is 2.2.1

GravitySnapHelper Support

Best in #RecyclerView

Average in #RecyclerView

GravitySnapHelper Support

Best in #RecyclerView

Average in #RecyclerView

quality kandi Quality

GravitySnapHelper has 0 bugs and 0 code smells.

GravitySnapHelper Quality

Best in #RecyclerView

Average in #RecyclerView

GravitySnapHelper Quality

Best in #RecyclerView

Average in #RecyclerView

security Security

GravitySnapHelper has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
GravitySnapHelper code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

GravitySnapHelper Security

Best in #RecyclerView

Average in #RecyclerView

GravitySnapHelper Security

Best in #RecyclerView

Average in #RecyclerView

license License

GravitySnapHelper is licensed under the Apache-2.0 License. This license is Permissive.
Permissive licenses have the least restrictions, and you can use them in most projects.

GravitySnapHelper License

Best in #RecyclerView

Average in #RecyclerView

GravitySnapHelper License

Best in #RecyclerView

Average in #RecyclerView

build Reuse

GravitySnapHelper releases are available to install and integrate.
Deployable package is available in Maven.
Build file is available. You can build the component from source.
Installation instructions, examples and code snippets are available.
GravitySnapHelper saves you 661 person hours of effort in developing the same functionality from scratch.
It has 1532 lines of code, 81 functions and 32 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

GravitySnapHelper Reuse

Best in #RecyclerView

Average in #RecyclerView

GravitySnapHelper Reuse

Best in #RecyclerView

Average in #RecyclerView

Top functions reviewed by kandi - BETA

kandi has reviewed GravitySnapHelper and discovered the below as its top functions. This is intended to give you an instant insight into GravitySnapHelper implemented functionality, and help decide if they suit your requirements.

Find the view which corresponds to a layout manager .
Intercept the touch event .
Creates and returns a LinearScroller with the given layout manager .
Calculates the shortest distance to the end of a RecyclerView .
Scrolls to a specific position
Snap to the next view .
Enables or disables the snapping view .
Returns the snap helper .
Snap this sprite to the previous position .

GravitySnapHelper Key Features

setMaxFlingDistance or setMaxFlingSizeFraction - changes the max fling distance allowed.

setScrollMsPerInch - changes the scroll speed.

setGravity - changes the gravity of the SnapHelper.

setSnapToPadding - enables snapping to padding (default is false)

smoothScrollToPosition and scrollToPosition

RTL support out of the box

GravitySnapHelper Examples and Code Snippets

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Setup

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implementation 'com.github.rubensousa:gravitysnaphelper:2.2.1'

How to use

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val snapHelper = GravitySnapHelper(Gravity.START)
snapHelper.attachToRecyclerView(recyclerView)

Start snapping

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val snapHelper = GravitySnapHelper(Gravity.START)
snapHelper.attachToRecyclerView(recyclerView)

Center snapping

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val snapHelper = GravitySnapHelper(Gravity.CENTER)
snapHelper.attachToRecyclerView(recyclerView)

License

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Copyright 2018 The Android Open Source Project
Copyright 2019 Rúben Sousa

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

How to show a subСollection when navigating to a specific document in Firestore

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private final FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
private final CollectionReference collectionReference = firebaseFirestore
    .collection("Items")
    .document("TurnKeyFactory")
    .collection("TheKeyOpens");

private final CollectionReference collectionReference = firebaseFirestore
    .collection("Items")
    .document("Factory exit key(Factory)")
    .collection("TheKeyOpens");

-----------------------

private final FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
private final CollectionReference collectionReference = firebaseFirestore
    .collection("Items")
    .document("TurnKeyFactory")
    .collection("TheKeyOpens");

private final CollectionReference collectionReference = firebaseFirestore
    .collection("Items")
    .document("Factory exit key(Factory)")
    .collection("TheKeyOpens");

RecyclerView PagerSnapHelper Snap on Start/Top instead of center Android

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 // remember to initialize snaphelper
 snapHelper = object : GravitySnapHelper(Gravity.TOP){
        override fun findTargetSnapPosition(
            layoutManager: RecyclerView.LayoutManager,
            velocityX: Int,
            velocityY: Int
        ): Int {
            val centerView = findSnapView(layoutManager) ?: return RecyclerView.NO_POSITION
            val position = layoutManager.getPosition(centerView)
            var targetPosition = -1
            if (layoutManager.canScrollHorizontally()) {
                targetPosition = if (velocityX < 0) {
                    position - 1
                } else {
                    position + 1
                }
            }
            if (layoutManager.canScrollVertically()) {

               // Log.d("debug", "velocityY $velocityY")
                targetPosition = if (velocityY < 0) {
                    position - 1
                } else {
                    position + 1
                }
            }
            val firstItem = 0
            val lastItem = layoutManager.itemCount - 1
            targetPosition = Math.min(lastItem, Math.max(targetPosition, firstItem))
            return targetPosition
        }



    }

    // lower the value higher the speed of scroll 
    // default is 100f
    snapHelper.scrollMsPerInch = 40f

    snapHelper.attachToRecyclerView(binding?.yourRecyclerView)

See all related Code Snippets

Community Discussions

Trending Discussions on GravitySnapHelper

How to show a subСollection when navigating to a specific document in Firestore
RecyclerView PagerSnapHelper Snap on Start/Top instead of center Android
Is there any way to reset persistence data in firebase database

Trending Discussions on GravitySnapHelper

QUESTION

How to show a subСollection when navigating to a specific document in Firestore

Asked 2021-Apr-20 at 05:54

I have a collection on Firestore inside it there are documents, they are displayed in the RecyclerView in my application, how can I make it so that when this document is clicked, its subcollection opens?

When you click on a document, the following happens:

    private FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
    private final CollectionReference collectionReference = firebaseFirestore.collection("Items");

    AdapterFactoryKeysSnap adapterFactoryKeysSnap;
    RecyclerView rv_keys_factory;
    RecyclerView.LayoutManager RLM_keys_factory;
    ProgressBar pb_keys_factory;

    private void RecyclerViewFactory() {
        Query query = collectionReference.orderBy("TurnKeyFactory", Query.Direction.DESCENDING);

        FirestoreRecyclerOptions<ItemKeys> firestoreRecyclerOptions = new FirestoreRecyclerOptions.Builder<ItemKeys>()
                .setQuery(query, ItemKeys.class).build();

        adapterFactoryKeysSnap = new AdapterFactoryKeysSnap((ClickKeysBlanc) getContext(), getContext(), firestoreRecyclerOptions);
        rv_keys_factory = requireView().findViewById(R.id.rv_keys_factory);
        RLM_keys_factory = new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false);
        SnapHelper snapHelper = new GravitySnapHelper(Gravity.START);
        snapHelper.attachToRecyclerView(rv_keys_factory);
        rv_keys_factory.setHasFixedSize(false);
        rv_keys_factory.setLayoutManager(RLM_keys_factory);
        rv_keys_factory.setNestedScrollingEnabled(true);
        rv_keys_factory.setAdapter(adapterFactoryKeysSnap);
        adapterFactoryKeysSnap.startListening();
        pb_keys_factory = requireView().findViewById(R.id.pb_keys_factory);
        Objects.requireNonNull(rv_keys_factory.getAdapter()).setStateRestorationPolicy(RecyclerView.Adapter.StateRestorationPolicy.PREVENT_WHEN_EMPTY);
        pb_keys_factory.setVisibility(View.GONE);
    }

The application understands which document was clicked due to "TurnKeyFactory". Inside this document is a subСollection called "TheKeyOpens".

I found a way to implement what was conceived inside this document, I write the following

"Factory exit key(Factory)"- name document

    private final FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
    private final CollectionReference collectionReference = firebaseFirestore.collection("Items").document("Factory exit key(Factory)").collection("TheKeyOpens");

The whole problem is that after I write this, it appears in all documents of the main collection, not in the specific selected.

I thought that if my application opens the selected document by "TurnKeyFactory" it will work if I write like this:

    private final FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
    private final CollectionReference collectionReference = firebaseFirestore.collection("Items").document("TurnKeyFactory").collection("TheKeyOpens");

But it didn't work.Help solve the problem.

Need to

Items->
    - Factory exit key(Factory)->
        - TheKeyOpens->
            -TheKeyOpens 1
            -TheKeyOpens 2
            -TheKeyOpens 3
    - TurnKeyFactory: “1”

    - Factory exit key(Customs)->
        - TheKeyOpens->
            -TheKeyOpens 1
            -TheKeyOpens 2
            -TheKeyOpens 3
    - TurnKeyFactory: “2”

ANSWER

Answered 2021-Apr-20 at 05:54

I thought that if my application opens the selected document by "TurnKeyFactory" it will work if I write like this:

private final FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
private final CollectionReference collectionReference = firebaseFirestore
    .collection("Items")
    .document("TurnKeyFactory")
    .collection("TheKeyOpens");

This reference doesn't work because you are passing an incorrect ID to the document() method. The ID of the document should be "Factory exit key(Factory)" as seen in the screenshot and not "TurnKeyFactory" as you actually added. In order to make it work, please use the following reference:

private final CollectionReference collectionReference = firebaseFirestore
    .collection("Items")
    .document("Factory exit key(Factory)")
    .collection("TheKeyOpens");

Source https://stackoverflow.com/questions/67172290

QUESTION

RecyclerView PagerSnapHelper Snap on Start/Top instead of center Android

Asked 2021-Jan-29 at 05:37

I am using a vertical recycler view and have attached a pagerSnapHelper.it works fine and snaps the items to the center position but I want it to snap to the start (top side). I don't want to use linearSnapHelper as it does not work the way I want. nor GravitySnapHelper will work as it extends linearSnapHelper.if you can share a similar class with PagerSnapHelper extended it will be great

ANSWER

Answered 2021-Jan-29 at 05:37

So I achieved a working solution by using LinearSnapHelper. using a library to snap to the top

the library - https://github.com/rubensousa/GravitySnapHelper

In order to achieve scroll similar to pager snap helper I used below code

 // remember to initialize snaphelper
 snapHelper = object : GravitySnapHelper(Gravity.TOP){
        override fun findTargetSnapPosition(
            layoutManager: RecyclerView.LayoutManager,
            velocityX: Int,
            velocityY: Int
        ): Int {
            val centerView = findSnapView(layoutManager) ?: return RecyclerView.NO_POSITION
            val position = layoutManager.getPosition(centerView)
            var targetPosition = -1
            if (layoutManager.canScrollHorizontally()) {
                targetPosition = if (velocityX < 0) {
                    position - 1
                } else {
                    position + 1
                }
            }
            if (layoutManager.canScrollVertically()) {

               // Log.d("debug", "velocityY $velocityY")
                targetPosition = if (velocityY < 0) {
                    position - 1
                } else {
                    position + 1
                }
            }
            val firstItem = 0
            val lastItem = layoutManager.itemCount - 1
            targetPosition = Math.min(lastItem, Math.max(targetPosition, firstItem))
            return targetPosition
        }



    }

    // lower the value higher the speed of scroll 
    // default is 100f
    snapHelper.scrollMsPerInch = 40f

    snapHelper.attachToRecyclerView(binding?.yourRecyclerView)

Source https://stackoverflow.com/questions/65806065

QUESTION

Is there any way to reset persistence data in firebase database

Asked 2020-Jun-05 at 15:47

I had used this code to cache information locally for firebase recyclerview data

FirebaseDatabase.getInstance().setPersistenceEnabled(true);

But, even though i had made some changes in the data stored in firebase database. It is not being reflected in the recyclerview. I want to delete persistence memory in onDestroy. So, that next time when the app is opended data is fetched from server. UI is similar to playstore ui. Horizontal recyclerviews is added inside of a vertical recyclerview

Updated Code:

//Method for retrieval of firebase database and displaying in recyclerview
private void getFirebaseData() {
    //dialog.show();
    shimmerFrameLayout.startShimmer();
    myData.addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            List<ItemGroup> itemGroups = new ArrayList<>();
            for(DataSnapshot groupSnapshot:dataSnapshot.getChildren()){
                ItemGroup itemGroup = new ItemGroup();
                try {
                    itemGroup.setHeaderTitle(groupSnapshot.child("headerTitle").getValue(true).toString());
                }catch (NullPointerException e){
                    Log.e("null",""+e);
                }
                GenericTypeIndicator<ArrayList<ItemData>> genericTypeIndicator = new GenericTypeIndicator<ArrayList<ItemData>>(){};
                itemGroup.setListItem(groupSnapshot.child("listItem").getValue(genericTypeIndicator));
                itemGroups.add(itemGroup);
            }
            ifirebaseLoadListener.onFirebaseLoadSuccess(itemGroups);
        }

        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {
            ifirebaseLoadListener.onFirebaseLoadFailed(databaseError.getMessage());
        }
    });
}

@Override
public void onFirebaseLoadSuccess(List<ItemGroup> itemGroupList) {
    MyItemGroupAdapter adapter = new MyItemGroupAdapter(getActivity(), itemGroupList);

    my_recycler_view.setAdapter(adapter);

    shimmerFrameLayout.stopShimmer();
    shimmerFrameLayout.setVisibility(View.GONE);
    //dialog.dismiss();

}

@Override
public void onFirebaseLoadFailed(String message) {
    Toast.makeText(getContext(),message,Toast.LENGTH_SHORT).show();
    shimmerFrameLayout.stopShimmer();
    shimmerFrameLayout.setVisibility(View.GONE);
    //dialog.dismiss();
}

Code of adapter for horizontal recyclerview

public class MyItemAdapter extends RecyclerView.Adapter<MyItemAdapter.MyViewHolder> {

private Context context;
private List<ItemData> itemDataList;
String urlStart = "https://i1.ytimg.com/vi/";
String urlLast = "/mqdefault.jpg";
double screenWidth = 0;
public MyItemAdapter(Context context, List<ItemData> itemDataList) {
    this.context = context;
    this.itemDataList = itemDataList;
}

@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) {
    View itemView = LayoutInflater.from(context).inflate(R.layout.layout_item, viewGroup,false);
    DisplayMetrics displayMetrics = new DisplayMetrics();
    screenWidth = getScreenWidth();

    return new MyItemAdapter.MyViewHolder(itemView);
}

@Override
public void onBindViewHolder(@NonNull MyViewHolder myViewHolder, int i) {

    double itemWidth = screenWidth / 3.33;




    myViewHolder.txt_item_title.setText(itemDataList.get(i).vn);
    String urlImage = urlStart+itemDataList.get(i).vi+urlLast;
    Log.e("urlImage",urlImage);
    Glide.with(context)
            .load(urlImage)
            .placeholder(R.drawable.placeholder)
            .error(R.drawable.placeholder)
            .centerCrop()
            .diskCacheStrategy(DiskCacheStrategy.AUTOMATIC)
            .into(myViewHolder.img_title);

    myViewHolder.setiItemClickListener(new IItemClickListener() {
        @Override
        public void onItemclickListener(View view, int position) {
            Toast.makeText(context,""+itemDataList.get(i).getVn(),Toast.LENGTH_SHORT).show();
        }
    });

}

@Override
public int getItemCount() {
    return (itemDataList != null ? itemDataList.size() : 0);
    }

public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{

    TextView txt_item_title;
    ImageView img_title;
    IItemClickListener iItemClickListener;
    CardView itemCardView;

    public void setiItemClickListener(IItemClickListener iItemClickListener) {
        this.iItemClickListener = iItemClickListener;
    }

    public MyViewHolder(@NonNull View itemView) {
        super(itemView);
        txt_item_title = (TextView)itemView.findViewById(R.id.itemTitle);
        img_title = (ImageView)itemView.findViewById(R.id.itemImage);
        itemView = (CardView)itemView.findViewById(R.id.item_cardview);
        itemView.setOnClickListener(this);

    }

    @Override
    public void onClick(View view){
        iItemClickListener.onItemclickListener(view,getAdapterPosition());
    }

}
public static int getScreenWidth() {
    return Resources.getSystem().getDisplayMetrics().widthPixels;
}

}

Code of adapter for vertical recyclerview

public class MyItemGroupAdapter extends RecyclerView.Adapter<MyItemGroupAdapter.MyViewHolder> {

private Context context;
private List<ItemGroup> dataList;
SnapHelper snapHelper;
public MyItemGroupAdapter(Context context, List<ItemGroup> dataList) {
    this.context = context;
    this.dataList = dataList;
}

@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int viewType) {

    View itemView = LayoutInflater.from(context).inflate(R.layout.layout_group, viewGroup,false);
    return new MyViewHolder(itemView);
}

@Override
public void onBindViewHolder(@NonNull MyViewHolder myViewHolder, int i) {

    myViewHolder.item_title.setText(dataList.get(i).getHeaderTitle());

    List<ItemData> itemData = dataList.get(i).getListItem();

    MyItemAdapter itemListAdapter = new MyItemAdapter(context,itemData);

    myViewHolder.recyclerView_item_list.setHasFixedSize(true);
    myViewHolder.recyclerView_item_list.setLayoutManager(new LinearLayoutManager(
            context,LinearLayoutManager.HORIZONTAL,false));
    myViewHolder.recyclerView_item_list.setAdapter(itemListAdapter);
    myViewHolder.recyclerView_item_list.setNestedScrollingEnabled(false);
    snapHelper.attachToRecyclerView(myViewHolder.recyclerView_item_list);
    myViewHolder.btn_more.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(context,"more clicked",Toast.LENGTH_SHORT).show();
        }
    });

}

@Override
public int getItemCount() {
    return (dataList != null ? dataList.size() : 0);
}

public class MyViewHolder extends RecyclerView.ViewHolder {
    TextView item_title;
    Button btn_more;
    RecyclerView recyclerView_item_list;
    public MyViewHolder(@NonNull View itemView) {
        super(itemView);
        snapHelper = new GravitySnapHelper(Gravity.START);
        item_title = itemView.findViewById(R.id.itemTitle);
        btn_more = itemView.findViewById(R.id.btnMore);
        recyclerView_item_list = itemView.findViewById(R.id.recycler_view_list);
    }
}

}

Screenshot:

ANSWER

Answered 2020-Jun-05 at 14:52

There is no API to reset the Firebase Realtime Database's persistent disk cache. The only way to clear it is to uninstall/reinstall the app.

Source https://stackoverflow.com/questions/62215135

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install GravitySnapHelper

Add this to your build.gradle:.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .