android获取具体时间项，解析string到date

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android获取具体时间项，解析String到Date. SharedPreference存储ArrayList

获取具体各个时间项

Calendar calendar = Calendar.getInstance();calendar.setTime(date);// 获取小时// int hour = calendar.get(Calendar.HOUR_OF_DAY);int hour = calendar.get(Calendar.HOUR);// 获取分钟int minute = calendar.get(Calendar.MINUTE);

解析String到Date

注意通配符 T Z 的写法
注意try-catch的处理，有待优化

public static String DATE_PATTERN = "yyyy-MM-dd'T'HH:mm:ss'Z'";public static String DATE_PATTERN2 = "yyyy-MM-dd HH:mm:ss";SimpleDateFormat format = new SimpleDateFormat(Constant.DATE_PATTERN);        Date returneDate = null;        try {            returneDate = format.parse(dateString);        } catch (ParseException e) {            format = new SimpleDateFormat(Constant.DATE_PATTERN2);            try {                returneDate = format.parse(dateString);            } catch (ParseException e1) {                e1.printStackTrace();            }        }

SharedPreference存储ArrayList

思路就是Set为中间的介质，首先初始化HashSet, 然后再使用addAll

Set<String> tagSet = new HashSet<String>();        tagSet.addAll(toTagNames(person.tagList));

person.tagList = toTags(mSharedPreferences.getStringSet(Person.jSON_TAGS, new HashSet<String>()));

public ArrayList<String> toTagNames(ArrayList<TagBean> tags){        ArrayList<String> tagNames = new ArrayList<String>();        for(int i = 0; i < tags.size(); i++){            tagNames.add(tags.get(i).name);        }        return tagNames;    }

    public ArrayList<TagBean> toTags(Set<String> tagStrings){        ArrayList<String> tagList = new ArrayList<String>();        tagList.addAll(tagStrings);        ArrayList<TagBean> tags = new ArrayList<TagBean>();        for(int i = 0; i < tagStrings.size(); i++){            tags.get(i).name = tagList.get(i);        }        return tags;    }

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