话不多少直接贴代码

private String coverToShowTime(Date updateTime) {

        SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");

        long time = (System.currentTimeMillis() - updateTime.getTime()) / 1000;

        //小于60 秒显示刚刚

        String result =  sf.format(updateTime);

        long temp = 0;

        if (time < 60) {

        result = "刚刚";

        //小于60分钟直接显示几分钟前

        }else if(  (temp = time/60) <60){

        result = temp + "分钟前";

        //小于24小时直接显示几小时前

        }else if((temp = time/(60*60)) <24){

        result = temp + "小时前";

        //小于7天显示几天前

        }else if((temp = time/(86400)) <7){

        result = temp + "天前";

        ////大于7天小于14天显示1周前

        }else if((temp = time/(86400*7)) <2){

        result = temp + "周前";

        }

        return result;

}

效果