根据字符串的长度得到其在屏幕上的px值

/**
 * 根据字符串的长度得到其在屏幕上的px值
 *
 * @param textView
 * @param nameFormat
 * @param start
 * @param end
 * @return
 */
private int getPxByTextLength(TextView textView, String nameFormat, int start, int end) {
    if (nameWidthList == null) {
        nameWidthList = new ArrayList<>();
    }
    Rect bounds = new Rect();
    TextPaint paint = textView.getPaint();
    paint.getTextBounds(nameFormat, start, end, bounds);
    final int width = bounds.width();
    System.out.println("parseText width = " + width);
    nameWidthList.add(width);
    return width;
}