Android Gridlayout with Dynamic Number of Columns Per Row

Android GridLayout with dynamic number of columns per row

You can use FlexboxLayoutManager

Add the following dependency to your build.gradle file:

implementation 'com.google.android:flexbox:1.0.0'

SAMPLE CODE

LAYOUT.XML

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <android.support.v7.widget.RecyclerView
      android:id="@+id/recyclerView"
      android:layout_width="match_parent"
      android:layout_height="250dp" />



</LinearLayout>

ACTIVTY CODE

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;

import com.google.android.flexbox.FlexDirection;
import com.google.android.flexbox.FlexboxLayoutManager;
import com.google.android.flexbox.JustifyContent;

import java.util.ArrayList;


public class MainActivity extends AppCompatActivity {

    RecyclerView recyclerView;
    ArrayList<String> arrayList = new ArrayList<>();
    DataAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        recyclerView = findViewById(R.id.recyclerView);
        initArray();
        FlexboxLayoutManager layoutManager = new FlexboxLayoutManager(this);
        layoutManager.setFlexDirection(FlexDirection.COLUMN);
        layoutManager.setJustifyContent(JustifyContent.FLEX_END);
        recyclerView.setLayoutManager(layoutManager);
        adapter = new DataAdapter(this, arrayList);
        recyclerView.setAdapter(adapter);

    }

    private void initArray() {

        arrayList.add("ioreeoe");
        arrayList.add("fghfgh");
        arrayList.add("ftyjyjhghgh");
        arrayList.add("jfgewrg");
        arrayList.add("rwrewr");
        arrayList.add("ghyjtyfghh");
        arrayList.add("gfhfgh");
        arrayList.add("gfhfht");
        arrayList.add("retretret");
        arrayList.add("retret");
        arrayList.add("ioreeoe");
        arrayList.add("fghfgh");
        arrayList.add("ftyjyjhghgh");
        arrayList.add("jfgewrg");
        arrayList.add("rwrewr");
        arrayList.add("ghyjtyfghh");
        arrayList.add("gfhfgh");
        arrayList.add("gfhfht");
        arrayList.add("retretret");
        arrayList.add("retret");
        arrayList.add("ioreeoe");
        arrayList.add("fghfgh");
        arrayList.add("ftyjyjhghgh");
        arrayList.add("jfgewrg");
        arrayList.add("rwrewr");
        arrayList.add("ghyjtyfghh");
        arrayList.add("gfhfgh");
        arrayList.add("gfhfht");
        arrayList.add("retretret");
        arrayList.add("retret");
    }

}

Adapter code

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import java.util.ArrayList;

/**
 * Created by nilesh on 3/4/18.
 */

public class DataAdapter extends RecyclerView.Adapter<DataAdapter.ViewHolder> {

    Context context;
    ArrayList<String> arrayList = new ArrayList<>();

    public DataAdapter(Context context, ArrayList<String> arrayList) {
        this.context = context;
        this.arrayList = arrayList;
    }

    @Override
    public DataAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.custom_layout, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(DataAdapter.ViewHolder holder, int position) {

        holder.title.setText(arrayList.get(position));
    }

    @Override
    public int getItemCount() {
        return arrayList.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        TextView title;

        public ViewHolder(View itemView) {
            super(itemView);
            title = itemView.findViewById(R.id.nilu);
        }
    }
}

custom_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/nilu"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:background="@drawable/test"
        android:padding="10dp"
        android:textColor="#050505" />
</LinearLayout>

@drawable/test

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle"  >
            <corners android:radius="30dp"/>
            <solid android:color="#d10e0e"/>
            <stroke android:width="1dip" android:color="#070fe9" />
        </shape>
    </item>
</selector>

RESULT

StaggeredGridLayout with dynamic # of objects per row, line-wrapping

You should consider FlexboxLayout. Take a look at the readme at the GitHub project site. I think you will find that it will fit your needs. There is also a FlexboxLayoutManager for RecyclerView. This is all supported by Google.

You can download the GitHub project to play with it to see if you can use it. There are also some demo playground apps in the Google Play store. Just search for it.

Android grid view Change number of columns depending on data

You need to spacify viewType in recycler adapter.

DEMO HERE

public class RVStatisticAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private List<Statistic> mList;

    public RVStatisticAdapter(List<Statistic> list) {
        this.mList = list;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view;

        switch (viewType) {
            case CITY_TYPE:
                view = LayoutInflater.from(parent.getContext()).inflate(R.layout.statistic_row_one, parent, false);
                return new CityViewHolder(view);
            case EVENT_TYPE:
                view = LayoutInflater.from(parent.getContext()).inflate(R.layout.statistic_row_two, parent, false);
                return new EventViewHolder(view);
        }
        return null;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        Statistic object = mList.get(position);
        if (object != null) {
            switch (object.getType()) {
                case CITY_TYPE:
                    ((CityViewHolder) holder).mTitle.setText(object.getTitle());
                    ((CityViewHolder) holder).no.setText(object.getNo());
                    ((CityViewHolder) holder).playerone.setText(object.getPlayer_one());

                    break;
                case EVENT_TYPE:
                    ((EventViewHolder) holder).mTitle.setText(object.getTitle());
                    ((EventViewHolder) holder).no.setText(object.getNo());
                    ((EventViewHolder) holder).playerone.setText(object.getName());
                    ((EventViewHolder) holder).playertwo.setText(object.getPlayer_two());
                    break;
            }
        }
    }

    @Override
    public int getItemCount() {
        if (mList == null)
            return 0;
        return mList.size();
    }

    @Override
    public int getItemViewType(int position) {
        if (mList != null) {
            Statistic object = mList.get(position);
            if (object != null) {
                return object.getType();
            }
        }
        return 0;
    }

    public static class CityViewHolder extends RecyclerView.ViewHolder {
        private TextView mTitle,no,playerone;

        public CityViewHolder(View itemView) {
            super(itemView);
            mTitle = (TextView) itemView.findViewById(R.id.tv_title);
            no = (TextView) itemView.findViewById(R.id.tv_no);
            playerone = (TextView) itemView.findViewById(R.id.tv_player_one);

        }
    }

    public static class EventViewHolder extends RecyclerView.ViewHolder {
        private TextView mTitle,no,playerone,playertwo;

        public EventViewHolder(View itemView) {
            super(itemView);
            mTitle = (TextView) itemView.findViewById(R.id.tv_title);
            no = (TextView) itemView.findViewById(R.id.tv_no);
            playerone = (TextView) itemView.findViewById(R.id.tv_player_one);
            playertwo = (TextView) itemView.findViewById(R.id.tv_player_two);
        }
    }
}

GridView with dynamic number of columns in each row

I guess that this is not a single GridView but a combination of multiple Layouts. Just make a LinearLayout and decide according to the content, which layout you want to have in a row.

Variable number of columns in GridLayoutManager

Take a look at the setSpanSizeLookup method of the GridLayoutManager. It lets you specify the span size for specific positions of your RecyclerView. So maybe you could use it to fit with your requirements for the variable column number.

Edit:

GridLayoutManager manager = new GridLayoutManager(context, 2); // MAX NUMBER OF SPACES
manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
    @Override
    public int getSpanSize(int position) {
        if (position == 1 || position == 6) {
            return 2; // ITEMS AT POSITION 1 AND 6 OCCUPY 2 SPACES
        } else {
            return 1; // OTHER ITEMS OCCUPY ONLY A SINGLE SPACE
        }
    }
});

When using this sort of layout manager your RecyclerView should look like this:

+---+---+
| 0 |   |
+---+---+
|   1   |
+---+---+
| 2 | 3 |
+---+---+
| 4 | 5 |
+---+---+
|   6   |
+---+---+

(only boxes with numbers represent items of your RecyclerView, other boxes are just empty spaces)

Dynamically change the number of columns of a GridLayoutManager

mGridLayoutManager = new GridLayoutManager(mContext, 2);
mGridLayoutManager.setSpanSizeLookup(onSpanSizeLookup);    

/**
 * Helper class to set span size for grid items based on orientation and device type
 */
GridLayoutManager.SpanSizeLookup onSpanSizeLookup = new GridLayoutManager.SpanSizeLookup() {
    @Override
    public int getSpanSize(int position) {
        return mHomeListAdapter.getItemViewType(position) == TYPE_PREMIUM ? 2 : 1;
    }
};

Android GridView wrap_content cell width and dynamic number of items per row

You can use tag view for android using that you can create view as you want.
see below library for more information

• https://github.com/whilu/AndroidTagView

Gridlayout manager with different column numbers in each row

Best light weight library i use

compile 'com.xiaofeng.android:flowlayoutmanager:1.2.3.2'

Benifit is you dont need to change your existing code, you just need to change recyclerview's LayoutManager like

recyclerView.setLayoutManager(new FlowLayoutManager());

You are all set, Happy coding :)

Update You know already how to populate recycler view. But verify by following

private void setAdapter() {
    recyclerView = (RecyclerView) fragment_view.findViewById(R.id.rv);
    recyclerView.setLayoutManager(new FlowLayoutManager());
    myRecyclerAdapter = new AdapterOrders(getActivity(), list);
    recyclerView.setAdapter(myRecyclerAdapter);
}

Call myRecyclerAdapter.notifyDataSetChanged(); after list is change from any source.

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