CODEWITHSUNDEEP
androidandroid-intentandroid-recyclerview
Kingg
Kingg

Reputation: 270

Android : App Crashed When Intent called inside the Recycler View

i created a recycler view which display images and text from Sqlite in listview, To pass the Selected Item name to the New Activity i used Intent to pass data, But When My Intent was Called My App Was Crashed and it Shows Attempt to invoke virtual method 'void android.content.Context.startActivity(android.content.Intent)' on a null object reference

recyclerview

ArrayList<byte[]> list_image;
private LayoutInflater mInflater;
private Context context;
private ArrayList<String> list_name;

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

        holder.listname.setText(String.valueOf(list_name.get(position)));

       
        Bitmap bmp = BitmapFactory.decodeByteArray(list_image.get(position), 0, list_image.get(position).length);
        ImageView image = holder.imgname;
        
        image.setImageBitmap(bmp);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent intent = new Intent(view.getContext(),AddItems.class);
                intent.putExtra("listname", String.valueOf(list_name.get(position)));
                context.startActivity(intent);

            }
        });
    }

Additems

  lisname = findViewById(R.id.listname_dis);

        Intent intent = getIntent();
        String dataTransmited=intent.getStringExtra("listname");
        lisname.setText(dataTransmited);
    }

logcat :

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.content.Context.startActivity(android.content.Intent)' on a null object reference
        at com.Karthi.check.CustomAdapter$1.onClick(CustomAdapter.java:76)

Upvotes: 0

Views: 192

Answers (2)

Karthickyuvan
Karthickyuvan

Reputation: 428

In Your Custom Adapter initlize private Activity activity;

Then

public CustomAdapter(Activity activity,....){

 this.activity = activity;
......
.....
....
}


   use  activity.startActivity(intent); in your OnClickListerner


holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent intent = new Intent(view.getContext(),AddItems.class);
                intent.putExtra("listname", String.valueOf(list_name.get(position)));
                activity.startActivity(intent);

            }

Also i ur main activity add

CustomAdapter ca = new CustomAdapter(MainActivity.this,this,......)

Upvotes: 2

Faisal Khan
Faisal Khan

Reputation: 652

since your "context" is null Try this:

view.getContext().startActivity(intent)

instead of this:

context.startActivity(intent)

Upvotes: 1

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