Question

借助此链接，我可以输入文字及其正常工作http://bestsiteinthemultiverse.com/2008/11/android-graphics-example/#comments

但如何将巨大的句子包装成多行

主要是我在这部分代码中需要帮助

paint.setStyle(Paint.Style.FILL);
        //turn antialiasing on
        paint.setAntiAlias(true);
        paint.setTextSize(25);
        canvas.drawText("Style.FILL.show the full complete text Thanks dude..I am searching for this thing since last three days. But no where they have given as simple as you given ", 75, 110, paint);

将整个句子排成一行，但我希望在多行中看到它

怎么可能？

请帮帮我提前致谢

Answer 1

有很多选择。

一个是用“+”分开：

canvas.drawText("Style.FILL.show the full complete text Thanks dude.."+
"I am searching for this thing since last three days. But no where"+
" they have given as simple as you given ", 75, 110, paint);

另一个是将字符串放入strings.xml。这样你在代码中没有“垃圾”，而且你可以为何时使用每个字符串添加限定符（例如本地化）。

编辑：我认为你的意思是它在代码中惹恼了你。现在我知道你需要它在应用程序本身工作。

下一个代码将采用任何文本，并根据您提供的矩形使其具有自动换行功能。如果文本太长，即使指定了最大行，文本也会被截断。它还支持文本对齐。

这是代码：

// TODO make this whole class more customizable (text size, text color,gravity...), maybe using textView
// TODO make this code better somehow. the positioning is very weird.
final Rect rect = ...;
// find the truncated text to show based on the max lines that are allowed:
StaticLayout sl;
int pivot, maxCharactersCount = mTextToShow.length(), minCharactersCount = 0;
sl = new StaticLayout(mTextToShow, mTextPaint, rect.width(), Alignment.ALIGN_NORMAL, 1, 1, false);
int lineCount = sl.getLineCount();
if (lineCount > mMaxLines)
    while (true) {
        pivot = (maxCharactersCount + minCharactersCount) / 2;
        final String text = mTextToShow.substring(0, pivot);
        sl = new StaticLayout(text, mTextPaint, rect.width(), Alignment.ALIGN_NORMAL, 1, 1, false);
        lineCount = sl.getLineCount();
        if (lineCount <= mMaxLines) {
            minCharactersCount = pivot;
            if (maxCharactersCount <= minCharactersCount + 1)
                break;
        } else
            maxCharactersCount = pivot;
    }
if (lineCount == 0)
    return;
// get the bounding width of the text (of all lines):
int maxTextWidth = 0;
for (int i = 0; i < lineCount; ++i)
    maxTextWidth = (int) Math.max(maxTextWidth, sl.getLineWidth(i));
// some initializations...
final float textHeight = mTextPaint.getTextSize();
final float totalTextHeight = textHeight * lineCount;
final float rotation = getRotation();
final String truncatedText = sl.getText().toString();
// calculate where to start the drawing:
final float yCenter = (rect.bottom + rect.top) / 2;
final float yStart = yCenter - totalTextHeight / 2;
int startX;
switch (mAlign) {
case CENTER:
    startX = (rect.left + rect.right) / 2;
    break;
case RIGHT:
    startX = rect.right;
    break;
case LEFT:
default:
    startX = rect.left;
    break;
}
// start drawing:
canvas.save();
if (rotation != 0)
    canvas.rotate(rotation);
canvas.translate(startX, yStart);
// for each line, draw it in the corresponding location, based on its width and which line it is:
for (int i = 0; i < lineCount; ++i) {
    final int lineTextWidth = (int) sl.getLineWidth(i);
    final String lineText = truncatedText.substring(sl.getLineStart(i), sl.getLineEnd(i));
    int xToDrawRelativeToStart = 0;
    switch (mAlign) {
    case CENTER:
        xToDrawRelativeToStart = -lineTextWidth / 2;
        break;
    case RIGHT:
        xToDrawRelativeToStart = -lineTextWidth;
        break;
    case LEFT:
    default:
        xToDrawRelativeToStart = 0;
        break;
    }
    canvas.drawText(lineText, xToDrawRelativeToStart, textHeight * (i + 1), mTextPaint);
}
canvas.restore();

Answer 2

您可以在代码中手动拆分文本（按照其他人的建议），但是在IDE中您可以看到等宽字体的文本，而用于绘制文本的字体不是等宽字体，因此线条不相等：

Lorem ipsum dolor坐下来，精神上的精神。 Aliquam sed vehicula dui。

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam sed vehicula dui.

你看到了不同之处。

我建议您使用Paint.breakText()。

如何将一个句子包装成多行？

2 个答案: