bitmap size exceeds VM budget for specific activity

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慢半拍i
慢半拍i 2021-01-24 05:47

I have activity A, B and C. They all setContentView in which the XML uses a drawable a a background. I put my background drawable image in drawable-nodpi folder.

However

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  • 2021-01-24 06:20

    This method Will do the sampling . You can modify sampling rate i.e. inSampleSize in my 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 = 2;
    
    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);
    }
    

    And at the last set this sampled Image in your Imageview or any another view. Using this

    mImageView.setImageBitmap(decodeSampledBitmapFromResource(getResources(),R.id.myimage,    
    Screen_width, screen_height));
    
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