带多行的画布drawtext [英] canvas drawtext with multiline

问题描述

我正在开发图像评论应用程序.我用 canvas.drawText(text，x，y，imgPaint);

I am developing a image commenting application. I draw text in canvas with canvas.drawText(text, x, y, imgPaint);

这将显示在一行中.当文本超过画布宽度时，我需要将行换成多行

This appears in a single line. I need to break the line to multiline when the text crosses the canvas width

预先感谢

推荐答案

您需要使用 StaticLayout :

TextPaint mTextPaint=new TextPaint();
StaticLayout mTextLayout = new StaticLayout("my text\nNext line is very long text that does not definitely fit in a single line on an android device. This will show you how!", mTextPaint, canvas.getWidth(), Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false);

canvas.save();
// calculate x and y position where your text will be placed

textX = 100;
textY = 100;

canvas.translate(textX, textY);
mTextLayout.draw(canvas);
canvas.restore();

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