CutText.java

/**
 * 裁剪文本
 */
private static String cutText(float textSize, String title, float maxWidth) {
    final TextPaint textPaint = new TextPaint();
    textPaint.setTextSize(textSize);

    if (textPaint.measureText(title) < maxWidth)
        return title;

    int i;
    String str = null;
    for (i = title.length(); i > 0; i--) {
        str = title.substring(0, i) + "...";
        float width = textPaint.measureText(str);
        if (width < maxWidth) {
            break;
        }
    }

    return str;
}