Issues in Recycler view and Card View

Question

I want to display card view but it doesnot display it shows fatal exception can any one solve this error with your programming skills.please see all layouts and classes?

public class MainActivity extends AppCompatActivity {
 List<Person> persons;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    RecyclerView  rv = (RecyclerView)findViewById(R.id.recycle);
    rv.setHasFixedSize(true);
    initializeData();
    LinearLayoutManager ll = new LinearLayoutManager(this);
    rv.setLayoutManager(ll);
    RvAdapter rvAdapter = new RvAdapter(persons);
    rv.setAdapter(rvAdapter);

}

private void initializeData() {

    persons = new ArrayList<>();
    persons.add(new Person("Anilkumar","23 years",R.drawable.anil));
    persons.add(new Person("Prashanthi","21 years",R.drawable.inr));
}

}

Person class

public class Person
{
String name;
String age;
int photoId;

Person(String name,String age,int photoId)
{
    this.name = name;
    this.age = age;
    this.photoId = photoId;
}

}

RVadapter class

public class RvAdapter extends RecyclerView.Adapter<RvAdapter.PersonViewHolder>
{


private List<Person> persons;
RvAdapter(List<Person> persons)
{
    this.persons = persons;
}

@Override
public PersonViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.cardlayout,parent,false);
    PersonViewHolder pvh = new PersonViewHolder(v);
    return pvh;
}

@Override
public void onBindViewHolder(PersonViewHolder holder, int position) {
        holder.personName.setText(persons.get(position).name);
    holder.personName.setText(persons.get(position).age);
    holder.personPhoto.setImageResource(persons.get(position).photoId);
}

@Override
public int getItemCount() {

    return persons.size();
}

@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
    super.onAttachedToRecyclerView(recyclerView);
}

public static class PersonViewHolder extends RecyclerView.ViewHolder
{
    CardView cardView;
    TextView personName;
    TextView personAge;
    ImageView personPhoto;
    public PersonViewHolder(View itemView) {
        super(itemView);
        cardView = (CardView)itemView.findViewById(R.id.card);
        personName = (TextView)itemView.findViewById(R.id.text);
        personAge = (TextView)itemView.findViewById(R.id.text2);
        personPhoto = (ImageView)itemView.findViewById(R.id.image);
    }
}
}

Logcat error

06-20 22:51:57.126 5433-5433/com.example.anilkumar.recyclerview E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.OutOfMemoryError
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:483)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:351)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:773)
at android.content.res.Resources.loadDrawable(Resources.java:1940)
at android.content.res.Resources.getDrawable(Resources.java:664)
at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:368)
at android.support.v7.internal.widget.TintManager.getDrawable(TintManager.java:177)
at android.support.v7.internal.widget.TintManager.getDrawable(TintManager.java:170)
at android.support.v7.widget.AppCompatImageHelper.setImageResource(AppCompatImageHelper.java:53)
at android.support.v7.widget.AppCompatImageView.setImageResource(AppCompatImageView.java:74)
at com.example.anilkumar.recyclerview.RvAdapter.onBindViewHolder(RvAdapter.java:49)
at com.example.anilkumar.recyclerview.RvAdapter.onBindViewHolder(RvAdapter.java:16)
at android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:5746)
at android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5779)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5016)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4892)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2029)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1414)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1377)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:578)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3239)
at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:2767)
at android.view.View.measure(View.java:12723)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:594)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:376)
at android.view.View.measure(View.java:12723)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)
at android.support.v7.internal.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135)
at android.view.View.measure(View.java:12723)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698)

card layout recycle layout

what is your exception. Can you provide logcat ? – Yasin Kaçmaz Jun 20 '16 at 17:17 — Yasin Kaçmaz, Jun 20 '16 at 17:17
see the above there is logcat errorr – A.asha Jun 20 '16 at 17:26 — A.asha, Jun 20 '16 at 17:26
do you have big size images ? – Yasin Kaçmaz Jun 20 '16 at 17:28 — Yasin Kaçmaz, Jun 20 '16 at 17:28

score 0 · Answer 1 · edited May 23 '17 at 10:34

0

You have big images you mentioned it, you must take care of memory issues when you handling too big sized images. You can use Picasso or Universal Image Loader or Glide

Theese libraries will load your images asynchronously , and you dont get any Memory issues.

One of my biggest image size till today is like (4560x5250) and i didnt get any memory issues , but if you want smooth scroll you can decrease image size in Picasso.

Currently im using Picasso in my RecyclerView.I can give example of Picasso like :

In your onBindViewHolder :

@Override
public void onBindViewHolder(PersonViewHolder holder, int position) {
holder.personName.setText(persons.get(position).name);
holder.personAge.setText(persons.get(position).age);
Picasso.with(context).load(persons.get(position).photoId).into(holder.personPhoto);

}

Also you can find comparison about theese libraries : picasso-v-s-imageloader-v-s-fresco-vs-glide

edited May 23 '17 at 10:34

Community

1
1

answered Jun 20 '16 at 17:42

Yasin Kaçmaz

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output comes but first textview did not display only second text view display is there any solution to over come – A.asha Jun 20 '16 at 18:05
can you provide any screenshot – Yasin Kaçmaz Jun 20 '16 at 18:06
in my question click on enter my image description once then u find the image – A.asha Jun 20 '16 at 18:55
what is problem here, can you give me what you want to do – Yasin Kaçmaz Jun 20 '16 at 20:12
Actually i m entering two text views in one card name and age but it display only age text....not show name text that is problem what i do now – A.asha Jun 21 '16 at 03:50
if you post your row's xml i can help you ! – Yasin Kaçmaz Jun 21 '16 at 11:52
please see below the question cardlayout and recycle layout – A.asha Jun 21 '16 at 14:51
How to share with u any id u have – A.asha Jun 21 '16 at 15:39
ıf you change this part of code you will beat problem : `@Override public void onBindViewHolder(PersonViewHolder holder, int position) { holder.personName.setText(persons.get(position).name); holder.personAge.setText(persons.get(position).age); holder.personPhoto.setImageResource(persons.get(position).photoId); }` – Yasin Kaçmaz Jun 21 '16 at 16:26
that is correct i think what i can change now in code – A.asha Jun 21 '16 at 16:36
in your rvadapter class delete onBindViewHolder code. And put code in my comment – Yasin Kaçmaz Jun 21 '16 at 16:38
both are same in comment and my code ii cant understand properly sir – A.asha Jun 21 '16 at 16:41
if you do what i am saying come with screenshot i will tell you – Yasin Kaçmaz Jun 21 '16 at 16:42
sir get it but how both are same but how its working – A.asha Jun 21 '16 at 16:51
so funny i cantt saw i gave both person names – A.asha Jun 21 '16 at 16:53
its not same my friend , i think you must open your eyes :) if you see `holder.personAge.setText(persons.get(position).age);` this line different ! – Yasin Kaçmaz Jun 21 '16 at 16:53
so funny sir.thank you for open my eyes.can u help me in another programme? – A.asha Jun 21 '16 at 16:58
you can create questions and always im here – Yasin Kaçmaz Jun 21 '16 at 16:59
so the question is retrieve data from sqlite databse and display as a card view sir . i can send code by codeshare in 2 mins – A.asha Jun 21 '16 at 17:12
@A.asha its not like that. You must search google and stackoverflow firstly. Make some effort and create a new question if you have issues still.Stackoverflow works like that. Noone can help you directly. You must make some effort. Please search and work a bit and come with result ! – Yasin Kaçmaz Jun 21 '16 at 17:13
yes i can insert data into database but does not display cardview it shows exception – A.asha Jun 21 '16 at 17:24
https://codeshare.io/UOyrB once check it.it shows fatal exception in rvadapter class – A.asha Jun 21 '16 at 17:28

Issues in Recycler view and Card View

1 Answers1