<p> Compares two objects for equality. </p> @param obj the object to compare to @return {@code true} if equal

<p> Formats a {@code Date}, {@code Calendar} or {@code Long} (milliseconds) object. </p> @param obj the object to format @param toAppendTo

<p> Gets a debugging string version of this formatter. </p> @return a debugging string

根据应用设置缓存地址 @return 缓存文件夹名称

<p> Gets an appropriate rule for the padding required. </p> @param field the field to get a rule for @param padding the padding

获取ConnectivityManager

<p> Gets a date/time formatter instance using the specified style in the default time zone and locale. </p> @param dateStyle date style: F

Output error log. Exception will be caught if input arguments have format error. NOTE {@link #initialize(String)} or {@link #initialize(String, LogOp

Appends the value of the specified calendar to the output buffer based on the rule implementation. @param buffer the output buffer @param

一个类中，对同一个 {@link BaseViewModel} 应该只调用一次getModel，然后类中做缓存 @param fragment ViewModelProvider 所依赖的fragment @param viewModel 要获取的 BaseViewModel @param <T>

Build a file, used to be inserted in the disk cache. @param fileId The name build the file. @return A valid file.

Close the logging task. Flush will be called here. Failed to call this may cause some logs lost.

Deserialize a json representation of an object. @param string A json string to fromJson.

Output information log. Exception will be caught if input arguments have format error. NOTE {@link #initialize(String)} or {@link #initialize(String,

检测网络是否为可用状态

<p> Performs the formatting by applying the rules to the specified calendar. </p> @param calendar the calendar to format @param buf

Returns the estimated lentgh of the result. @return the estimated length

更新状态变量