Out of memory Error on setImageResource

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再見小時候
再見小時候 2020-12-09 13:53

I\'m making a board game, and I\'m using a 10x10 GridView for the board. I\'ve made a class ImageAdapter extending BaseAdapter which holds an Integer array of icons (9 patch

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  • 2020-12-09 14:47

    In your code mThumbIds are Ids of drawable. What you should do is you have to create a Thumb of particular image by following code.

    public static int calculateInSampleSize(BitmapFactory.Options options,
            int reqWidth, int reqHeight) {
        // Raw height and width of image
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;
    
        if (height > reqHeight || width > reqWidth) {
    
            // Calculate ratios of height and width to requested height and
            // width
            final int heightRatio = Math.round((float) height
                    / (float) reqHeight);
            final int widthRatio = Math.round((float) width / (float) reqWidth);
    
            // Choose the smallest ratio as inSampleSize value, this will
            // guarantee
            // a final image with both dimensions larger than or equal to the
            // requested height and width.
            inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
        }
    
        return inSampleSize;
    }
    
    public static Bitmap decodeSampledBitmapFromResource(Resources res,
            int resId, int reqWidth, int reqHeight) {
    
        // First decode with inJustDecodeBounds=true to check dimensions
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeResource(res, resId, options);
    
        // Calculate inSampleSize
        options.inSampleSize = calculateInSampleSize(options, reqWidth,
                reqHeight);
    
        // Decode bitmap with inSampleSize set
        options.inJustDecodeBounds = false;
        return BitmapFactory.decodeResource(res, resId, options);
    } 
    

    Use this code,

    decodeSampledBitmapFromResource(getResources(),R.drawable.xyz, 100, 100);
    

    Here, 100 * 100 sample size you are providing. So Thumbnail of such size will be created.

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