在Android画布包皮过长的文本 [英] Wrapping long text on an Android Canvas

问题描述

我有一个自定义的控件是做了很多2D直画到画布。

I have a custom control that is doing a lot of 2D drawing straight to the canvas.

部分此图的是文本，所以我使用的<一个href="http://developer.android.com/reference/android/graphics/Canvas.html#drawText%28java.lang.String,%20int,%20int,%20float,%20float,%20android.graphics.Paint%29"><$c$c>Canvas.drawText()方法。

Some of this drawing is text, so I am using the Canvas.drawText() method.

欲绘制一些范围内的文本 - 一个左上，特定的最大宽度，并且线的最大数目。绘制文本后，我想知道有多少行花了。

I want to draw the text within some bounds - a top-left, certain maximum width, and a maximum number of lines. After drawing the text, I want to know how many lines it took.

有一个内置的功能来绘制边界内做分裂明智的文字？

Is there a built-in function to draw text within bounds doing the splitting sensibly?

如果不是，是否有一个标准的配方，这样做？

If not, is there a standard recipe for doing so?

推荐答案

您可以使用<一个href="http://developer.android.com/reference/android/text/Layout.html"><$c$c>android.text.StaticLayout类此，只需创建一个 StaticLayout 所需的文本，对齐方式，宽度等，并调用它的画（油画）方法画在画布上。

You can use the android.text.StaticLayout class for this; simply create a StaticLayout for the desired text, alignment, width, etc. and call its draw(Canvas) method to draw to the canvas.

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