Android - Stretch canvas/bitmap to full screen width

Question

I have a canvas in which i'm drawing a lot of bitmaps. 15x15, to be exact.

Now, what i want to do is ensure that these 15 columns of bitmaps, back to back, stretch across the entire width of the screen. But since 160/15 isn't an integer number, i can't just set the width of them to the appropriate value.

Is there any way to stretch them, or perhaps the whole canvas, to fit the screen snugly?

Thanks.

Answer 1

You can resize a Bitmap using a Matrix object.

float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;

Matrix matrix = new Matrix();
matrix.postScale(scaleWidth, scaleHeight);

Bitmap resized = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);

Answer 2

我使用canvas.scale（float scaleX，float scaleY）来制作画布及其内容，使其延伸到屏幕的宽度。