Show bunch of data using listview and pass with parcelable in Android

Question

So today I'm making a project using listview but I want to pass all the selected values with parcelable in android java. But I'm kinda confuse since I am using array to store the data. Here's my MainActivity.java looks like:

package com.example.lee;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.os.Parcelable;
import android.view.View;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

import java.util.ArrayList;

import static android.provider.Contacts.SettingsColumns.KEY;

public class MainActivity extends AppCompatActivity{

    ListView list;
    String[] title;
    int[] image;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        image = new int[]{R.drawable.poster_a_star, R.drawable.poster_aquaman, R.drawable.poster_avengerinfinity, R.drawable.poster_birdbox,
                            R.drawable.poster_bohemian};

        title = new String[]{"A Star is Born", "Aquaman", "Avengers Infinity War", "Bird Box", "Bohemian Rhapsody"};


        ListViewAdapters adapters = new ListViewAdapters(MainActivity.this, image, title, release_info, languages, genres);
        list = (ListView)findViewById(R.id.listview_movie);
        // Binds the Adapter to the ListView
        list.setAdapter(adapters);
//         Capture ListView item click
            list.setOnItemClickListener(new OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view,
                                        int position, long id) {
                    ArrayList<Movie> movies = new ArrayList<>();
                    Movie movie = new Movie();
                    Intent i = new Intent(MainActivity.this, ObjectReceived.class);

                i.putExtra("title",title);
                // Pass listview item click position
                i.putExtra("position", position);
                //Pass image item click image
                i.putExtra("image", image);
                // Open SingleItemView.java Activity
                startActivity(i);
            }

        });
    }
}

This one in my Movie.java class:

package com.example.lee;
import android.os.Parcel;
import android.os.Parcelable;

public class Movie implements Parcelable {

    private String title;
    private int image;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public int getImage() {
        return image;
    }

    public void setImage(int image) {
        this.image = image;
    }

    protected Movie(Parcel in){
        title = in.toString();
        image = in.readInt();
    }
    public Movie(){

    }
    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(title);
        dest.writeInt(image);
    }

    public static final Creator<Movie> CREATOR = new Creator<Movie>() {
        @Override
        public Movie createFromParcel(Parcel source) {
            return new Movie(source);
        }
        @Override
        public Movie[] newArray(int size) {
            return new Movie[size];
        }
    };
}

And here's my ObjectReceived.java class:

package com.example.made_lee;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.widget.TextView;

import java.util.ArrayList;

import static android.provider.Contacts.SettingsColumns.KEY;

public class ObjectReceived extends AppCompatActivity {
    public static final String EXTRA_MOVIE = "extra_person";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_object_received);
        TextView tvObject = findViewById(R.id.object_received);
        ArrayList<Movie> movies = getIntent().getParcelableArrayListExtra(EXTRA_MOVIE);
    }
}

Here's the error messages:

 E/AndroidRuntime: FATAL EXCEPTION: main
     Process: com.example.made_lee, PID: 25122
     java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.made_lee/com.example.made_lee.ObjectReceived}:
 java.lang.NullPointerException: Attempt to invoke virtual method
 'java.lang.String[]
 com.example.made_lee.Movie.getTitle()' on a null
 object reference
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
         at android.app.ActivityThread.-wrap11(Unknown Source:0)
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
         at android.os.Handler.dispatchMessage(Handler.java:105)
         at android.os.Looper.loop(Looper.java:164)
         at android.app.ActivityThread.main(ActivityThread.java:6541)
         at java.lang.reflect.Method.invoke(Native Method)
         at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
      Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String[]
 com.example.made_lee.Movie.getTitle()' on a null
 object reference
         at com.example.made_lee.ObjectReceived.onCreate(ObjectReceived.java:16)
         at android.app.Activity.performCreate(Activity.java:6975)
         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
         at android.app.ActivityThread.-wrap11(Unknown Source:0) 
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
         at android.os.Handler.dispatchMessage(Handler.java:105) 
         at android.os.Looper.loop(Looper.java:164) 
         at android.app.ActivityThread.main(ActivityThread.java:6541) 
         at java.lang.reflect.Method.invoke(Native Method) 
         at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

The List View is successfully show up, but whenever I clicked one of the item the app will directly stop running. I think it's because I don't pass the value correctly from MainActivity.java to ObjectReceived.java but in here I confuse about how to pass the value with array items. Please help me :D Thank You

You are not adding the array into the intent extras in the setOnItemClickListenter — BennyHawk, Nov 20 '19 at 07:05
please see this link it'll help you :https://stackoverflow.com/a/16584517 — Viral Patel, Nov 20 '19 at 07:07
Please refer to this answer [Pass Parcelable ArrayList to Activity](https://stackoverflow.com/a/15138146/7352655) — BennyHawk, Nov 20 '19 at 07:08
@ParthLotia I want to pass data from listview, but since I've some data, I think I want to use that arraylist — XVallerie, Nov 20 '19 at 07:10
where did you send EXTRA_MOVIE?but getting getIntent().getParcelableArrayListExtra(EXTRA_MOVIE) like this. Also You want to send complete array list to ObjectReceived or only clicked item? if only selected item then use i.putExtra("title",title[position]) — sravs, Nov 20 '19 at 07:10
@Leony if you want to pass arraylist then in arraylist you have got one model class,instead of Parcelable use Serializable. — Parth Lotia, Nov 20 '19 at 07:12

score 1 · Answer 1 · answered Nov 20 '19 at 07:09

in your onItemClick your are putting 3 values in your intent bundle:

i.putExtra("title",title);           
i.putExtra("position", position);
i.putExtra("image", image);

In yout ObjectReceived activity you need to get each value by its key.

So this does not work:

ArrayList<Movie> movies = getIntent().getParcelableArrayListExtra(EXTRA_MOVIE);
}

You need to something like this:

Movie movie = new Movie()
movie.setTitle(getIntent().getStringExtra("title")
movie.setImage(getIntent().getIntExtra("image")

The information that is placed into your intent extras has a type and you need to use this type information to retreive the correct value from your extras in your retreiving activity.

score 1 · Answer 2 · answered Nov 20 '19 at 07:12

Referring this answer, Pass Parcelable ArrayList to Activity

In the sending activity:

Intent i = new Intent(MainActivity.this, ObjectReceived.class);

ArrayList<Movie> movieArray = new ArrayList<Movie>();

i.putParcelableArrayListExtra("array", movieArray);
i.putExtra("title",title);
i.putExtra("position", position);
i.putExtra("image", image);
startActivity(i);

In the recieving activity:

ArrayList<Movie> movieArray = this.getIntent().getParcelableArrayListExtra("array");

score 1 · Answer 3 · answered Nov 20 '19 at 07:23

How to pass ArrayList from one Activity to another:

 ArrayList<Movie> movies = new ArrayList<>();
    Movie movie = new Movie();
    movie.setTitle(title[position]);
    movie.setImages(image[position]);
    movies.add(movie);
    Intent i = new Intent(MainActivity.this, ObjectReceived.class);
    i.putParcelableArrayListExtra("MovieList", (ArrayList<? extends Parcelable>) movies);

How to receive ArrayList in another activity:

List<Movie> movieList = new ArrayList<>();
 Intent intent = getIntent();
    if (intent != null) {
        movieList = intent.getParcelableArrayListExtra("MovieList");
        Movie movie = movieList.get(0);
        int image = movie.getImage();
        String title = movie.getTitle();
    }

I do try your answer, but when I clicked one of data that I store in array not it string.xml , the second activity doesn't received any data, totally blank — XVallerie, Nov 21 '19 at 00:14

XVallerie · Answer 4 · 2019-11-21T00:12:08.860

Okay, Thank you guys for helping me out! now my code works well! I tried this

 String mTitle= screenplays[position];
 intmImage= overview[position];
i.putExtra("title",mTitle);
// Pass all data title
i.putExtra("image", mImage);
// Pass all data image

And this for receiving values

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_object_received);
        TextView tvObject = findViewById(R.id.object_received);
        tvObject.setText(getIntent().getStringExtra("title"));

    }

But this one doesn't implement the POJO class could anybody here tell me how to use properly the POJO class parcelable cause I store the data in array not in string.xml and when I try to click one of data it shows nothing

Jakir Hossain · Answer 5 · 2019-11-20T07:34:16.630

So you want to pass only selected item data from your listview.

You can simply do the following.

list.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view,
                                        int position, long id) {
           Intent i = new Intent(MainActivity.this, ObjectReceived.class);

           String movieTitle = title[position]; // selected item title
           int movieImage = image[position]; // selected item image

           i.putExtra("title",movieTitle);
           i.putExtra("position", position);
           i.putExtra("image", movieImage);
           startActivity(i);
   }

});

And in your ObjectReceived get data like the following.

@Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_object_received);
        TextView tvObject = findViewById(R.id.object_received);

        // get your data like below.
        String title = getIntent().getStringExtra("title");
        int image = getIntent().getIntExtra("image");
        int position = getIntent().getIntExtra("position");
        Log.d("YOUR_TAG", "Title: "+title);

        // create movie object like below
        Movie movie = new Movie()
        movie.setTitle(title);
        movie.setImage(image);
        //........
}

Parth Lotia · Answer 6 · 2019-12-11T05:25:56.217

If you want to pass ArrayList using Intent then this one might help you.

Where you want to pass data from one to another activity using intent use below code.

 button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Intent intent = new Intent(context, YourActivity.class);
        Bundle args = new Bundle();
        args.putSerializable("name",list);
        intent.putExtra("namelist",args);
        context.startActivity(intent);

In Activity where you want to getIntent use code below.

 ArrayList<YourModelName> arraylistname = new ArrayList<>();

Intent intent1 = getIntent();
Bundle bundle1 = intent1.getBundleExtra("namelist");
arraylistname = (ArrayList<YourModelName>)   
bundle1.getSerializable("name");

And implement your model or POJO class with Serializable

Show bunch of data using listview and pass with parcelable in Android

6 Answers6