android - Scale Bitmap maintaining aspect ratio and fitting both width and height -


i want scale bitmap maintaining aspect ratio, fitting required dimensions. this answer scales bitmap , maintains aspect ratio, leaves blank space unless image perfect square. need fill both width , height, fit_xy scaletype property of imageview.

based on streets of boston's answer, made method scales , returns bitmap desired width , height, fitting both dimensions (no blank space!). automatically adapts more horizontal or more vertical images.

public bitmap resizebitmapfitxy(int width, int height, bitmap bitmap){     bitmap background = bitmap.createbitmap(width, height, bitmap.config.argb_8888);     float originalwidth = bitmap.getwidth(), originalheight = bitmap.getheight();     canvas canvas = new canvas(background);     float scale, xtranslation = 0.0f, ytranslation = 0.0f;     if (originalwidth > originalheight) {         scale = height/originalheight;         xtranslation = (width - originalwidth * scale)/2.0f;     }     else {         scale = width / originalwidth;         ytranslation = (height - originalheight * scale)/2.0f;     }     matrix transformation = new matrix();     transformation.posttranslate(xtranslation, ytranslation);     transformation.prescale(scale, scale);     paint paint = new paint();     paint.setfilterbitmap(true);     canvas.drawbitmap(bitmap, transformation, paint);     return background; }

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