* 保存 * @param key * @param value * @returns {*}

* 获取 * @param key * @returns {Promise<T>|*|Promise.<TResult>}

Send a DEBUG log message @param tag @param msg

Send an INFO log message @param tag @param msg

Send a VERBOSE log message. @param tag @param msg

Do real refresh work. If there is a hook, execute the hook first. @param ignoreHook

perform UI after refresh

prepare for loading @param frame

Scroll back to to if is not under touch

Check can do refresh or not. For example the content is empty or the first child is in view. <p/>

Send an ERROR log message @param tag @param msg

if deltaY > 0, move the content down @param deltaY

perform refreshing UI

When the content view has reached top and refresh has been completed, view will be reset. @param frame

Do refresh complete work when time elapsed is greater than {@link #mLoadingMinTime}

If at the top and not in loading, reset

Default implement for check can perform pull to refresh @param frame @param content @param header @return

When refresh begin @param frame

Call this when data is loaded. The UI will perform complete at once or after a delay, depends on the time elapsed is greater then {@link #mLoadingMinT