将一些间隔图像水平添加到画布中的正确方法是什么? [英] What is the correct way to horizontally add some spaced image into a Canvas?
问题描述
我对 Android 开发完全陌生,我有以下疑问.
I am absolutly new in Android development and I have the followind doubt.
我必须将一个相邻的图像绘制成一个画布对象.
I have to draw images one next to each other into a Canvas object.
举个例子:我有这个图标(它非常大,我必须调整它的大小):
So let to an example: I have this icon (it is pretty huge and I have to resize it):
所以我必须将其中的 3 个图标并排放置(在图像和下一个图像之间添加一些空白).
So I have to put 3 of these icon one next to each other (adding some white space between an image and the next one).
所以我做了这样的事情:
So I have done something like this:
// Load the 2 images for the creation of the "difficulty graphic":
Bitmap chefHatOk = BitmapFactory.decodeResource(getResources(), R.drawable.chef_hat_ok);
// Where the previus image will be drawn:
Canvas canvas = new Canvas();
所以我认为我可以将上一张图片添加到画布,这样做:
So I think that I can add the previous image to the Canvas doing something like this:
canvas.drawBitmap(smallImage, 0f, 0f, null);
我认为第一个 0f 值代表插入图像之前的水平空间(偏移量),如果我做错了断言,请纠正我.
I think that the first 0f value represent the horizontal space before the inserted image (the offset), correct me if I am doing wrong assertion.
那么,如何将其中 3 张图像并排添加,在图像和下一张图像之间留出一些空白?
So, how can I add 3 of these images one next to each other leaving some white space between an image and the next one?
推荐答案
这样的事情应该可行:
Bitmap output = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
int space = 10; // the space between images
for(int i = 0; i < 3; i++) {
canvas.drawBitmap(smallImage, i * (smallImage.getWidth() + space), 0, null);
}
// do whatever you want with output
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