CODEWITHSUNDEEP
androidimageview
ekjyot
ekjyot

Reputation: 2227

creating a list of imageviews and displaying in the linear layout in activity android

I am making an app in which i am getting an array of images from server. I need to display these images in my activity through dynamic array of imageviews and then ad these in linearlayout. i have used the folloeing code but getting null pointer exception.

         URL myFileUrl =null;  
            myFileUrl= new URL(imageUrl);
            int imageIndex = 0;
            int n=stringOnTextView.length;
            System.out.println(n);
             for (int row = 0; row < Math.ceil(n/3); row++) 
            {
                for (int column = 0; column < 3; column++) 
                {
                     myFileUrl= new URL(imageUrl);

                    HttpURLConnection conn= (HttpURLConnection)myFileUrl.openConnection();
                    conn.setDoInput(true);
                    conn.connect();

                    InputStream is = conn.getInputStream();
                    bmImg = BitmapFactory.decodeStream(is);
                    System.out.println(images[imageIndex]);
                    images = new ImageView[n];

                    images[imageIndex].setImageBitmap(bmImg);

                    System.out.println("cccccc");
                    layoutImages.addView(images[imageIndex++],(column * 80)+20,(row * 80)+20);

Upvotes: 0

Views: 179

Answers (1)

Ashwin N Bhanushali
Ashwin N Bhanushali

Reputation: 3882

Since you are not initializing arrat images[] that's why you r getting null pointer exception.

images = new ImageView[n]

change your code as shown above.

Upvotes: 2

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