is null or its size is 0 <pre> isEmpty(null) = true; isEmpty({}) = true; isEmpty({1}) = false; </pre> @param <V> @param sourceList @r

Waits if necessary for the computation to complete, and then retrieves its result. @return The computed result. @throws CancellationException If the

InputStream转为字符串 @param in @return

log.e

get string preferences @param context @param key The name of the preference to retrieve @param defaultValue Value to return if

Executes the task with the specified parameters. The task returns itself (this) so that the caller can keep a reference to it. <p/> <p>This method is

根据指定分隔符分割字符串，返回结果数组。<br> 处理规则：<br> 若输入为null，则返回null；<br> 否则若输入为空字符串，则返回空数组；<br> 否则若分隔符为null或空字符串，则返回包含原字符串本身的数组；<br> @param input 输入字符串 @p

get boolean preferences @param context @param key The name of the preference to retrieve @param defaultValue Value to return if

解析一个字符串，得到BaseEntity对象 @param content @param clazz @return

Executes the task with the specified parameters. The task returns itself (this) so that the caller can keep a reference to it. <p/> <p>Note: this func

请求正常完成 @param response

log.d

将Key-value转换成用&号链接的URL查询参数形式。 @param parameters @return

put string preferences @param context @param key The name of the preference to modify @param value The new value for the prefer

put boolean preferences @param context @param key The name of the preference to modify @param value The new value for the prefe

字符串转换成日期 如果转换格式为空，则利用默认格式进行转换操作 @param str 字符串 @param format 日期格式 @return 日期 @throws java.text.ParseException

获取今天的日期，格式为：yyyy/MM/dd @return

获取当前网络状态 返回2代表wifi,1代表2G/3G @param paramContext @return

判断给定字符串是否空白串。<br> 空白串是指由空格、制表符、回车符、换行符组成的字符串<br> 若输入字符串为null或空字符串，返回true @param input @return boolean

Returns <tt>true</tt> if this task was cancelled after it completed normally. If you are calling {@link #cancel(boolean)} on the task, the value retur

join list to string, separator is "," <pre> join(null) = ""; join({}) = ""; join({a,b}) = "a,b"; </pre> @param list @return jo

Creates the directory named by the trailing filename of this file, including the complete directory path required to create this directory. <br/> <br/

为newsList设置已读、未读标示 @param newsList

根据一个图片的url获取其在本机缓存中的存储url from: https://avatars3.githubusercontent.com/u/3348483 to: /storage/emulated/0/Android/data/com.cundong.izhihu/cache/f72a03

获取扩展存储cache的绝对路径 返回：sdcard/Android/data/{package_name}/cache/ @param context @return

get long preferences @param context @param key The name of the preference to retrieve @param defaultValue Value to return if th

log.i

@hide Used to force static handler to be created.

compare two object @param actual @param expected @return <ul> <li>if both are null, return true</li> <li>return actual.{@link Object#

判断是不是2/3G网络状态 @param paramContext @return

put long preferences @param context @param key The name of the preference to modify @param value The new value for the preferen

截取字符串末尾空格 @param input @return

clear the preferences @param context @param preferenceName

get请求 @param context @param url @param params @param responseListener

get file name from path, include suffix <pre> getFileName(null) = null getFileName("") = "" getFileN

get file size <ul> <li>if path is null or empty, return -1</li> <li>if path exist and it is a file, return file size, else return -1</li> <ul> @param