android - 如何防止 URL 被 TextView 包裹？

Question

我有一个多行 TextView，它可以显示一些可选的 URL。现在我遇到了一个问题:我的一些长 URL 显示在 ://

的位置

sometext sometext http://   <-- AUTO LINE WRAP
google.com/

如何禁用整个 URL 或至少 http(s):// 前缀的换行？但是，我仍然需要启用文本换行。

我的文字应该这样换行

sometext sometext    <-- AUTO LINE WRAP
http://google.com/

Answer 1

这只是为 textview 实现自定义换行的概念证明。您可能需要根据您的要求添加/编辑条件。

如果您的要求是我们的 textview 类必须以不以某些文本结尾的方式显示多行(此处为 http://和 http:)，我已经通过 SO 修改了非常流行的 textview 类的代码以满足此要求:资源 : Auto Scale TextView Text to Fit within Bounds

变化:

 private boolean mCustomLineWrap = true;

/**
     * Resize the text size with specified width and height
     * @param width
     * @param height
     */
    public void resizeText(int width, int height) {
        CharSequence text = getText();
        // Do not resize if the view does not have dimensions or there is no text
        if(text == null || text.length() == 0 || height <= 0 || width <= 0 || mTextSize == 0) {
            return;
        }

        // Get the text view's paint object
        TextPaint textPaint = getPaint();

        // Store the current text size
        float oldTextSize = textPaint.getTextSize();
        // If there is a max text size set, use the lesser of that and the default text size
        float targetTextSize = mMaxTextSize > 0 ? Math.min(mTextSize, mMaxTextSize) : mTextSize;

        // Get the required text height
        int textHeight = getTextHeight(text, textPaint, width, targetTextSize);

        // Until we either fit within our text view or we had reached our min text size, incrementally try smaller sizes
        while(textHeight > height && targetTextSize > mMinTextSize) {
            targetTextSize = Math.max(targetTextSize - 2, mMinTextSize);
            textHeight = getTextHeight(text, textPaint, width, targetTextSize);
        }



        if(mCustomLineWrap ) {

            // Draw using a static layout
            StaticLayout layout = new StaticLayout(text, textPaint, width, Alignment.ALIGN_NORMAL, mSpacingMult, mSpacingAdd, false);
            // Check that we have a least one line of rendered text
            if(layout.getLineCount() > 0) {
                String lineText[] = new String[layout.getLineCount()];
                // Since the line at the specific vertical position would be cut off,
                // we must trim up to the previous line
                String wrapStr = "http:", wrapStrWithSlash = "http://";
                boolean preAppendWrapStr = false, preAppendWrapStrWithSlash = false ;
                for(int lastLine = 0; lastLine < layout.getLineCount(); lastLine++)
                {
                    int start = layout.getLineStart(lastLine);
                    int end = layout.getLineEnd(lastLine);
                   lineText[lastLine] = ((String) getText()).substring(start,end);
                    if(preAppendWrapStr)
                    {
                        lineText[lastLine] = "\n" + wrapStr + lineText[lastLine];
                        preAppendWrapStr = false;
                    }
                    else if(preAppendWrapStrWithSlash)
                    {
                        lineText[lastLine] = "\n" + wrapStrWithSlash + lineText[lastLine];
                        preAppendWrapStrWithSlash = false;
                    }

                    if(lineText[lastLine].endsWith(wrapStr))
                    {
                        preAppendWrapStr = true;
                        lineText[lastLine] = lineText[lastLine].substring(0,lineText[lastLine].lastIndexOf(wrapStr));
                    }
                    if( lineText[lastLine].endsWith(wrapStrWithSlash))
                    {
                        preAppendWrapStrWithSlash = true;
                        lineText[lastLine] = lineText[lastLine].substring(0,lineText[lastLine].lastIndexOf(wrapStrWithSlash));
                    }

                }
                String compString = "";
                for(String lineStr :   lineText)
                {
                    compString += lineStr;
                }
                  setText(compString);
            }

        }

        // Some devices try to auto adjust line spacing, so force default line spacing
        // and invalidate the layout as a side effect
        textPaint.setTextSize(targetTextSize);
        setLineSpacing(mSpacingAdd, mSpacingMult);

        // Notify the listener if registered
        if(mTextResizeListener != null) {
            mTextResizeListener.onTextResize(this, oldTextSize, targetTextSize);
        }

        // Reset force resize flag
        mNeedsResize = false;
    }