更新时间:2023-02-03 08:02:34
您可以创建一个适当大小的 Bitmap,为 Bitmap 创建一个 Canvas,然后将您的文本绘制到其中.您可以使用 Paint 对象来测量文本,以便了解位图所需的大小.你可以做这样的事情(未经测试):
You can create a Bitmap of the appropriate size, create a Canvas for the Bitmap, and then draw your text into it. You can use a Paint object to measure the text so you'll know the size needed for the bitmap. You can do something like this (untested):
public Bitmap textAsBitmap(String text, float textSize, int textColor) {
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setTextSize(textSize);
paint.setColor(textColor);
paint.setTextAlign(Paint.Align.LEFT);
float baseline = -paint.ascent(); // ascent() is negative
int width = (int) (paint.measureText(text) + 0.5f); // round
int height = (int) (baseline + paint.descent() + 0.5f);
Bitmap image = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(image);
canvas.drawText(text, 0, baseline, paint);
return image;
}