android设置适当的文字宽度

按项目需求，title要求格式为“title + 数字”，如果title过长，那么title的结尾以...结束，但是数字不能省略，设计如下

String getExactTitle(String mTitle，String mMemberCount) {
DisplayMetrics metric = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metric);
float density = metric.density;  // 屏幕密度（0.75 / 1.0 / 1.5)

int DEFAULT_PIX = 180;
int maxLength = (int)(DEFAULT_PIX * density);
getTitleBar().setTitleLimitCount(100);
getTitleBar().getTitleView().setSingleLine();
getTitleBar().getTitleView().setMaxWidth(maxLength);

Paint pFont = new Paint();
//pFont.setTextSize(18 * density);
    pFont.setTextSize(getTitleBar().getTitleView().getTextSize());//这样设置字体更合适
    int memberWidth = (int)pFont.measureText(mMemberCount);    int titleWidth = (int)pFont.measureText(mTitle);    String title = mTitle;    if (titleWidth + memberWidth > maxLength) {        int titleLimit = maxLength - memberWidth - (int) pFont.measureText("...");        for (int i = 0; i < mTitle.length(); i++) {            if (pFont.measureText(mTitle.substring(0, i)) > titleLimit) {                title = mTitle.substring(0, i) + "..." + mMemberCount;                break;            }        }    } else {        title = mTitle + mMemberCount;    }    return title;}