High resolution image not display in ImageView Android

Question

I am displaying an image in full screen mode,but whenever going to display large image then nothing display in the image view. Below code try to resize bitmap but got same r

Answer 1

You solve your problem from two mehtods Method 1

call this method(function)

public Bitmap decodeImage(int resourceId) {
    try {
        // Decode image size
        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeResource(getResources(), resourceId, o);
        // The new size we want to scale to
        final int REQUIRED_SIZE = 100; // you are free to modify size as your requirement

        // Find the correct scale value. It should be the power of 2.
        int scale = 1;
        while (o.outWidth / scale / 2 >= REQUIRED_SIZE && o.outHeight / scale / 2 >= REQUIRED_SIZE)
            scale *= 2;

        // Decode with inSampleSize
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        o2.inSampleSize = scale;
        return BitmapFactory.decodeResource(getResources(), resourceId, o2);
    } catch (Throwable e) {
        e.printStackTrace();
    }
    return null;    
}

add this before your adapter

picture.setImageBitmap((decodeImage(item.drawableId));

instead of

 picture.setImageResource(item.drawableId);

Mehtod 2

You need to adjust your image size. The better way is to decode the image to a bitmap, and set the bitmap to the ImageView. For example:

BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inSampleSize = 4;
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), item.drawableId, opts);
picture.setImageBitmap (bitmap);