I am not able to see the grid view in my Bookmark which extends Fragment

I am facing an issue the problem is I can see the Fragment but not the
GridView which I have there created, in the LogCat no error nothing but somehow the code it is not working.
But if I remove GridView from bookmark.xml and only leave a TextView than I can show the TextView
I am trying to reach a GridView into a Fragment.
This is my code.

Fragment

public class FragmentBookmark extends Fragment {

    View paramView;

    public FragmentBookmark() {

    }



    @Nullable

    @Override

    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {



        paramView = inflater.inflate(R.layout.bookmark, container, false);

        return paramView;

    }



}

This is the Main Activity

 ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());

 adapter.AddFragment(new FragmentExplore(), "");

 adapter.AddFragment(new FragmentBookmark(), "");

 adapter.AddFragment(new FragmentStore(), "");

 mViewPager.setAdapter(adapter);

 mTabLayout.setupWithViewPager(mViewPager);

This is the xml for Bookmark Fragment

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center">



    <GridView xmlns:android="http://schemas.android.com/apk/res/android"

        android:id="@+id/gridview"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:columnWidth="90dp"

        android:numColumns="auto_fit"

        android:verticalSpacing="10dp"

        android:horizontalSpacing="10dp"

        android:stretchMode="columnWidth"

        android:gravity="center"

        />



</LinearLayout>

edited Nov 22 '18 at 13:47

Savin Sharma

426315

asked Nov 22 '18 at 12:11

Spritzig

1491215

have you used .setAdapter?

– Rumit Patel
Nov 22 '18 at 12:35

What do you think .setAdapter because I am new in android ? can you explain more or edit my code

– Spritzig
Nov 22 '18 at 12:38

If you are new, I would suggest you to use RecyclerView. because GridView is old.

– Rumit Patel
Nov 22 '18 at 12:40

Thank you for the answer, if you have any suggestion what to do please edit my code or make an answer

– Spritzig
Nov 22 '18 at 12:41

you can have a look my answer below.

– Rumit Patel
Nov 22 '18 at 12:58

add a comment |

Fragment

public class FragmentBookmark extends Fragment {

    View paramView;

    public FragmentBookmark() {

    }



    @Nullable

    @Override

    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {



        paramView = inflater.inflate(R.layout.bookmark, container, false);

        return paramView;

    }



}

This is the Main Activity

 ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());

 adapter.AddFragment(new FragmentExplore(), "");

 adapter.AddFragment(new FragmentBookmark(), "");

 adapter.AddFragment(new FragmentStore(), "");

 mViewPager.setAdapter(adapter);

 mTabLayout.setupWithViewPager(mViewPager);

This is the xml for Bookmark Fragment

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center">



    <GridView xmlns:android="http://schemas.android.com/apk/res/android"

        android:id="@+id/gridview"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:columnWidth="90dp"

        android:numColumns="auto_fit"

        android:verticalSpacing="10dp"

        android:horizontalSpacing="10dp"

        android:stretchMode="columnWidth"

        android:gravity="center"

        />



</LinearLayout>

edited Nov 22 '18 at 13:47

Savin Sharma

426315

asked Nov 22 '18 at 12:11

Spritzig

1491215

have you used .setAdapter?

– Rumit Patel
Nov 22 '18 at 12:35

What do you think .setAdapter because I am new in android ? can you explain more or edit my code

– Spritzig
Nov 22 '18 at 12:38

If you are new, I would suggest you to use RecyclerView. because GridView is old.

– Rumit Patel
Nov 22 '18 at 12:40

Thank you for the answer, if you have any suggestion what to do please edit my code or make an answer

– Spritzig
Nov 22 '18 at 12:41

you can have a look my answer below.

– Rumit Patel
Nov 22 '18 at 12:58

add a comment |

Fragment

public class FragmentBookmark extends Fragment {

    View paramView;

    public FragmentBookmark() {

    }



    @Nullable

    @Override

    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {



        paramView = inflater.inflate(R.layout.bookmark, container, false);

        return paramView;

    }



}

This is the Main Activity

 ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());

 adapter.AddFragment(new FragmentExplore(), "");

 adapter.AddFragment(new FragmentBookmark(), "");

 adapter.AddFragment(new FragmentStore(), "");

 mViewPager.setAdapter(adapter);

 mTabLayout.setupWithViewPager(mViewPager);

This is the xml for Bookmark Fragment

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center">



    <GridView xmlns:android="http://schemas.android.com/apk/res/android"

        android:id="@+id/gridview"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:columnWidth="90dp"

        android:numColumns="auto_fit"

        android:verticalSpacing="10dp"

        android:horizontalSpacing="10dp"

        android:stretchMode="columnWidth"

        android:gravity="center"

        />



</LinearLayout>

edited Nov 22 '18 at 13:47

Savin Sharma

426315

asked Nov 22 '18 at 12:11

Spritzig

1491215

Fragment

public class FragmentBookmark extends Fragment {

    View paramView;

    public FragmentBookmark() {

    }



    @Nullable

    @Override

    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {



        paramView = inflater.inflate(R.layout.bookmark, container, false);

        return paramView;

    }



}

This is the Main Activity

 ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());

 adapter.AddFragment(new FragmentExplore(), "");

 adapter.AddFragment(new FragmentBookmark(), "");

 adapter.AddFragment(new FragmentStore(), "");

 mViewPager.setAdapter(adapter);

 mTabLayout.setupWithViewPager(mViewPager);

This is the xml for Bookmark Fragment

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center">



    <GridView xmlns:android="http://schemas.android.com/apk/res/android"

        android:id="@+id/gridview"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:columnWidth="90dp"

        android:numColumns="auto_fit"

        android:verticalSpacing="10dp"

        android:horizontalSpacing="10dp"

        android:stretchMode="columnWidth"

        android:gravity="center"

        />



</LinearLayout>

android xml android-fragments

edited Nov 22 '18 at 13:47

Savin Sharma

426315

asked Nov 22 '18 at 12:11

Spritzig

1491215

edited Nov 22 '18 at 13:47

Savin Sharma

426315

asked Nov 22 '18 at 12:11

Spritzig

1491215

edited Nov 22 '18 at 13:47

Savin Sharma

426315

edited Nov 22 '18 at 13:47

Savin Sharma

426315

edited Nov 22 '18 at 13:47

Savin Sharma

426315

asked Nov 22 '18 at 12:11

Spritzig

1491215

asked Nov 22 '18 at 12:11

Spritzig

1491215

asked Nov 22 '18 at 12:11

Spritzig

1491215

have you used .setAdapter?

– Rumit Patel
Nov 22 '18 at 12:35

What do you think .setAdapter because I am new in android ? can you explain more or edit my code

– Spritzig
Nov 22 '18 at 12:38

If you are new, I would suggest you to use RecyclerView. because GridView is old.

– Rumit Patel
Nov 22 '18 at 12:40

Thank you for the answer, if you have any suggestion what to do please edit my code or make an answer

– Spritzig
Nov 22 '18 at 12:41

you can have a look my answer below.

– Rumit Patel
Nov 22 '18 at 12:58

add a comment |

have you used .setAdapter?

– Rumit Patel
Nov 22 '18 at 12:35

What do you think .setAdapter because I am new in android ? can you explain more or edit my code

– Spritzig
Nov 22 '18 at 12:38

If you are new, I would suggest you to use RecyclerView. because GridView is old.

– Rumit Patel
Nov 22 '18 at 12:40

Thank you for the answer, if you have any suggestion what to do please edit my code or make an answer

– Spritzig
Nov 22 '18 at 12:41

you can have a look my answer below.

– Rumit Patel
Nov 22 '18 at 12:58

have you used .setAdapter?

– Rumit Patel
Nov 22 '18 at 12:35

What do you think .setAdapter because I am new in android ? can you explain more or edit my code

– Spritzig
Nov 22 '18 at 12:38

If you are new, I would suggest you to use RecyclerView. because GridView is old.

– Rumit Patel
Nov 22 '18 at 12:40

Thank you for the answer, if you have any suggestion what to do please edit my code or make an answer

– Spritzig
Nov 22 '18 at 12:41

you can have a look my answer below.

– Rumit Patel
Nov 22 '18 at 12:58

add a comment |

3 Answers
3

active

oldest

votes

Try like this using framelayout

<FrameLayout

xmlns:android = "http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

>

<GridView

    android:id = "@+id/gvList"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:verticalSpacing="0dp"

    android:horizontalSpacing="0dp"

    android:stretchMode="spacingWidth"

    android:numColumns="2"/>

</FrameLayout>

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

add a comment |

You need to set adapter to your GridView as only GridView will never show anything as it is a simple ViewGroup.. Also rather than using GridView try to use RecyclerView in grid mode. Below is a simple tutorial you can follow-
RecyclerView as GridView with GridLayoutManager

answered Nov 22 '18 at 12:20

saurabh169

6410

add a comment |

xml:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">



    <android.support.v7.widget.RecyclerView

        android:id="@+id/m_recyclerView"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_margin="4dp" />

</LinearLayout>

grid_item.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    app:cardElevation="4dp">



    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center"

        android:orientation="vertical">



        <ImageView

            android:id="@+id/imageview1"

            android:layout_width="50dp"

            android:layout_height="50dp"

            android:layout_margin="5dp"

            android:contentDescription="@null" />



        <TextView

            android:id="@+id/tv_name"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:maxLines="1"

            android:singleLine="true"

            tools:text="Category" />

    </LinearLayout>

</android.support.v7.widget.CardView>

Adapter:

import android.content.Context;

import android.support.annotation.NonNull;

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.List;



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



    private Context mContext;

    private List<String> myNameList;



    public MyAdapter(Context context, List<String> categoryInfo) {

        mContext = context;

        myNameList = categoryInfo;

    }



    @NonNull

    @Override

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

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.grid_item, parent, false);

        return new MyViewHolder(view);

    }



    @Override

    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {

        String myName = myNameList.get(position);

        holder.tvName.setText(myName);

    }



    @Override

    public int getItemCount() {

        return myNameList.size();

    }



    class MyViewHolder extends RecyclerView.ViewHolder {

        private TextView tvName;



        MyViewHolder(View itemView) {

            super(itemView);

            tvName = itemView.findViewById(R.id.tv_name);

        }

    }

}

In your Activity or Fragment:

Context mContext = this;

RecyclerView mRecyclerView;

mRecyclerView = findViewById(R.id.m_recyclerView);

mRecyclerView.setLayoutManager(new android.support.v7.widget.GridLayoutManager(mContext, 3));



ArrayList<String> nameArray = new ArrayList<>();

nameArray.add("name 1");

nameArray.add("name 2");

nameArray.add("name 3");

nameArray.add("name 4");



mRecyclerView.setAdapter(new MyAdapter(mContext, nameArray));

edited Nov 22 '18 at 13:55

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

The Activity what you have write in which of my java class I need to implement and the @dimens from xml where I need to import because the are unknow ?

– Spritzig
Nov 22 '18 at 13:05

in onCreateView method of FragmentBookmark. or in onCreate method of MainActivity

– Rumit Patel
Nov 22 '18 at 13:08

It is not working man ?

– Spritzig
Nov 22 '18 at 13:12

what data you entered in yourStringArrayList?

– Rumit Patel
Nov 22 '18 at 13:15

Nothing, but I have another errors for example @dimens and it is oke where I put the Acitivity shows me only errors can you please change all my code with your actual code and see if it works.

– Spritzig
Nov 22 '18 at 13:17

|
show 3 more comments

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

Try like this using framelayout

<FrameLayout

xmlns:android = "http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

>

<GridView

    android:id = "@+id/gvList"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:verticalSpacing="0dp"

    android:horizontalSpacing="0dp"

    android:stretchMode="spacingWidth"

    android:numColumns="2"/>

</FrameLayout>

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

add a comment |

Try like this using framelayout

<FrameLayout

xmlns:android = "http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

>

<GridView

    android:id = "@+id/gvList"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:verticalSpacing="0dp"

    android:horizontalSpacing="0dp"

    android:stretchMode="spacingWidth"

    android:numColumns="2"/>

</FrameLayout>

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

add a comment |

Try like this using framelayout

<FrameLayout

xmlns:android = "http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

>

<GridView

    android:id = "@+id/gvList"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:verticalSpacing="0dp"

    android:horizontalSpacing="0dp"

    android:stretchMode="spacingWidth"

    android:numColumns="2"/>

</FrameLayout>

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

Try like this using framelayout

<FrameLayout

xmlns:android = "http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

>

<GridView

    android:id = "@+id/gvList"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:verticalSpacing="0dp"

    android:horizontalSpacing="0dp"

    android:stretchMode="spacingWidth"

    android:numColumns="2"/>

</FrameLayout>

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

answered Nov 22 '18 at 12:18

Sunil P

1,3072616

add a comment |

answered Nov 22 '18 at 12:20

saurabh169

6410

add a comment |

answered Nov 22 '18 at 12:20

saurabh169

6410

add a comment |

answered Nov 22 '18 at 12:20

saurabh169

6410

answered Nov 22 '18 at 12:20

saurabh169

6410

answered Nov 22 '18 at 12:20

saurabh169

6410

answered Nov 22 '18 at 12:20

saurabh169

6410

answered Nov 22 '18 at 12:20

saurabh169

6410

add a comment |

xml:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">



    <android.support.v7.widget.RecyclerView

        android:id="@+id/m_recyclerView"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_margin="4dp" />

</LinearLayout>

grid_item.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    app:cardElevation="4dp">



    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center"

        android:orientation="vertical">



        <ImageView

            android:id="@+id/imageview1"

            android:layout_width="50dp"

            android:layout_height="50dp"

            android:layout_margin="5dp"

            android:contentDescription="@null" />



        <TextView

            android:id="@+id/tv_name"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:maxLines="1"

            android:singleLine="true"

            tools:text="Category" />

    </LinearLayout>

</android.support.v7.widget.CardView>

Adapter:

import android.content.Context;

import android.support.annotation.NonNull;

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.List;



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



    private Context mContext;

    private List<String> myNameList;



    public MyAdapter(Context context, List<String> categoryInfo) {

        mContext = context;

        myNameList = categoryInfo;

    }



    @NonNull

    @Override

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

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.grid_item, parent, false);

        return new MyViewHolder(view);

    }



    @Override

    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {

        String myName = myNameList.get(position);

        holder.tvName.setText(myName);

    }



    @Override

    public int getItemCount() {

        return myNameList.size();

    }



    class MyViewHolder extends RecyclerView.ViewHolder {

        private TextView tvName;



        MyViewHolder(View itemView) {

            super(itemView);

            tvName = itemView.findViewById(R.id.tv_name);

        }

    }

}

In your Activity or Fragment:

Context mContext = this;

RecyclerView mRecyclerView;

mRecyclerView = findViewById(R.id.m_recyclerView);

mRecyclerView.setLayoutManager(new android.support.v7.widget.GridLayoutManager(mContext, 3));



ArrayList<String> nameArray = new ArrayList<>();

nameArray.add("name 1");

nameArray.add("name 2");

nameArray.add("name 3");

nameArray.add("name 4");



mRecyclerView.setAdapter(new MyAdapter(mContext, nameArray));

edited Nov 22 '18 at 13:55

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

The Activity what you have write in which of my java class I need to implement and the @dimens from xml where I need to import because the are unknow ?

– Spritzig
Nov 22 '18 at 13:05

in onCreateView method of FragmentBookmark. or in onCreate method of MainActivity

– Rumit Patel
Nov 22 '18 at 13:08

It is not working man ?

– Spritzig
Nov 22 '18 at 13:12

what data you entered in yourStringArrayList?

– Rumit Patel
Nov 22 '18 at 13:15

Nothing, but I have another errors for example @dimens and it is oke where I put the Acitivity shows me only errors can you please change all my code with your actual code and see if it works.

– Spritzig
Nov 22 '18 at 13:17

|
show 3 more comments

xml:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">



    <android.support.v7.widget.RecyclerView

        android:id="@+id/m_recyclerView"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_margin="4dp" />

</LinearLayout>

grid_item.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    app:cardElevation="4dp">



    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center"

        android:orientation="vertical">



        <ImageView

            android:id="@+id/imageview1"

            android:layout_width="50dp"

            android:layout_height="50dp"

            android:layout_margin="5dp"

            android:contentDescription="@null" />



        <TextView

            android:id="@+id/tv_name"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:maxLines="1"

            android:singleLine="true"

            tools:text="Category" />

    </LinearLayout>

</android.support.v7.widget.CardView>

Adapter:

import android.content.Context;

import android.support.annotation.NonNull;

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.List;



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



    private Context mContext;

    private List<String> myNameList;



    public MyAdapter(Context context, List<String> categoryInfo) {

        mContext = context;

        myNameList = categoryInfo;

    }



    @NonNull

    @Override

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

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.grid_item, parent, false);

        return new MyViewHolder(view);

    }



    @Override

    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {

        String myName = myNameList.get(position);

        holder.tvName.setText(myName);

    }



    @Override

    public int getItemCount() {

        return myNameList.size();

    }



    class MyViewHolder extends RecyclerView.ViewHolder {

        private TextView tvName;



        MyViewHolder(View itemView) {

            super(itemView);

            tvName = itemView.findViewById(R.id.tv_name);

        }

    }

}

In your Activity or Fragment:

Context mContext = this;

RecyclerView mRecyclerView;

mRecyclerView = findViewById(R.id.m_recyclerView);

mRecyclerView.setLayoutManager(new android.support.v7.widget.GridLayoutManager(mContext, 3));



ArrayList<String> nameArray = new ArrayList<>();

nameArray.add("name 1");

nameArray.add("name 2");

nameArray.add("name 3");

nameArray.add("name 4");



mRecyclerView.setAdapter(new MyAdapter(mContext, nameArray));

edited Nov 22 '18 at 13:55

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

The Activity what you have write in which of my java class I need to implement and the @dimens from xml where I need to import because the are unknow ?

– Spritzig
Nov 22 '18 at 13:05

in onCreateView method of FragmentBookmark. or in onCreate method of MainActivity

– Rumit Patel
Nov 22 '18 at 13:08

It is not working man ?

– Spritzig
Nov 22 '18 at 13:12

what data you entered in yourStringArrayList?

– Rumit Patel
Nov 22 '18 at 13:15

Nothing, but I have another errors for example @dimens and it is oke where I put the Acitivity shows me only errors can you please change all my code with your actual code and see if it works.

– Spritzig
Nov 22 '18 at 13:17

|
show 3 more comments

xml:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">



    <android.support.v7.widget.RecyclerView

        android:id="@+id/m_recyclerView"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_margin="4dp" />

</LinearLayout>

grid_item.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    app:cardElevation="4dp">



    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center"

        android:orientation="vertical">



        <ImageView

            android:id="@+id/imageview1"

            android:layout_width="50dp"

            android:layout_height="50dp"

            android:layout_margin="5dp"

            android:contentDescription="@null" />



        <TextView

            android:id="@+id/tv_name"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:maxLines="1"

            android:singleLine="true"

            tools:text="Category" />

    </LinearLayout>

</android.support.v7.widget.CardView>

Adapter:

import android.content.Context;

import android.support.annotation.NonNull;

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.List;



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



    private Context mContext;

    private List<String> myNameList;



    public MyAdapter(Context context, List<String> categoryInfo) {

        mContext = context;

        myNameList = categoryInfo;

    }



    @NonNull

    @Override

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

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.grid_item, parent, false);

        return new MyViewHolder(view);

    }



    @Override

    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {

        String myName = myNameList.get(position);

        holder.tvName.setText(myName);

    }



    @Override

    public int getItemCount() {

        return myNameList.size();

    }



    class MyViewHolder extends RecyclerView.ViewHolder {

        private TextView tvName;



        MyViewHolder(View itemView) {

            super(itemView);

            tvName = itemView.findViewById(R.id.tv_name);

        }

    }

}

In your Activity or Fragment:

Context mContext = this;

RecyclerView mRecyclerView;

mRecyclerView = findViewById(R.id.m_recyclerView);

mRecyclerView.setLayoutManager(new android.support.v7.widget.GridLayoutManager(mContext, 3));



ArrayList<String> nameArray = new ArrayList<>();

nameArray.add("name 1");

nameArray.add("name 2");

nameArray.add("name 3");

nameArray.add("name 4");



mRecyclerView.setAdapter(new MyAdapter(mContext, nameArray));

edited Nov 22 '18 at 13:55

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

xml:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">



    <android.support.v7.widget.RecyclerView

        android:id="@+id/m_recyclerView"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_margin="4dp" />

</LinearLayout>

grid_item.xml

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    app:cardElevation="4dp">



    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center"

        android:orientation="vertical">



        <ImageView

            android:id="@+id/imageview1"

            android:layout_width="50dp"

            android:layout_height="50dp"

            android:layout_margin="5dp"

            android:contentDescription="@null" />



        <TextView

            android:id="@+id/tv_name"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:maxLines="1"

            android:singleLine="true"

            tools:text="Category" />

    </LinearLayout>

</android.support.v7.widget.CardView>

Adapter:

import android.content.Context;

import android.support.annotation.NonNull;

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.List;



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



    private Context mContext;

    private List<String> myNameList;



    public MyAdapter(Context context, List<String> categoryInfo) {

        mContext = context;

        myNameList = categoryInfo;

    }



    @NonNull

    @Override

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

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.grid_item, parent, false);

        return new MyViewHolder(view);

    }



    @Override

    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {

        String myName = myNameList.get(position);

        holder.tvName.setText(myName);

    }



    @Override

    public int getItemCount() {

        return myNameList.size();

    }



    class MyViewHolder extends RecyclerView.ViewHolder {

        private TextView tvName;



        MyViewHolder(View itemView) {

            super(itemView);

            tvName = itemView.findViewById(R.id.tv_name);

        }

    }

}

In your Activity or Fragment:

Context mContext = this;

RecyclerView mRecyclerView;

mRecyclerView = findViewById(R.id.m_recyclerView);

mRecyclerView.setLayoutManager(new android.support.v7.widget.GridLayoutManager(mContext, 3));



ArrayList<String> nameArray = new ArrayList<>();

nameArray.add("name 1");

nameArray.add("name 2");

nameArray.add("name 3");

nameArray.add("name 4");



mRecyclerView.setAdapter(new MyAdapter(mContext, nameArray));

edited Nov 22 '18 at 13:55

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

edited Nov 22 '18 at 13:55

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

answered Nov 22 '18 at 12:58

Rumit Patel

1,83152435

The Activity what you have write in which of my java class I need to implement and the @dimens from xml where I need to import because the are unknow ?

– Spritzig
Nov 22 '18 at 13:05

in onCreateView method of FragmentBookmark. or in onCreate method of MainActivity

– Rumit Patel
Nov 22 '18 at 13:08

It is not working man ?

– Spritzig
Nov 22 '18 at 13:12

what data you entered in yourStringArrayList?

– Rumit Patel
Nov 22 '18 at 13:15

Nothing, but I have another errors for example @dimens and it is oke where I put the Acitivity shows me only errors can you please change all my code with your actual code and see if it works.

– Spritzig
Nov 22 '18 at 13:17

|
show 3 more comments

The Activity what you have write in which of my java class I need to implement and the @dimens from xml where I need to import because the are unknow ?

– Spritzig
Nov 22 '18 at 13:05

in onCreateView method of FragmentBookmark. or in onCreate method of MainActivity

– Rumit Patel
Nov 22 '18 at 13:08

It is not working man ?

– Spritzig
Nov 22 '18 at 13:12

what data you entered in yourStringArrayList?

– Rumit Patel
Nov 22 '18 at 13:15

Nothing, but I have another errors for example @dimens and it is oke where I put the Acitivity shows me only errors can you please change all my code with your actual code and see if it works.

– Spritzig
Nov 22 '18 at 13:17

The Activity what you have write in which of my java class I need to implement and the @dimens from xml where I need to import because the are unknow ?

– Spritzig
Nov 22 '18 at 13:05

in onCreateView method of FragmentBookmark. or in onCreate method of MainActivity

– Rumit Patel
Nov 22 '18 at 13:08

It is not working man ?

– Spritzig
Nov 22 '18 at 13:12

what data you entered in yourStringArrayList?

– Rumit Patel
Nov 22 '18 at 13:15

Nothing, but I have another errors for example @dimens and it is oke where I put the Acitivity shows me only errors can you please change all my code with your actual code and see if it works.

– Spritzig
Nov 22 '18 at 13:17

|
show 3 more comments

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