final public void refreshComplete() {
        if (DEBUG) {
            PtrCLog.i(LOG_TAG, "refreshComplete");
        }

        if (mRefreshCompleteHook != null) {
            mRefreshCompleteHook.reset();
        }

        int delay = (int) (mLoadingMinTime - (System.currentTimeMillis() - mLoadingStartTime));
        if (delay <= 0) {
            if (DEBUG) {
                PtrCLog.d(LOG_TAG, "performRefreshComplete at once");
            }
            performRefreshComplete();
        } else {
            postDelayed(mPerformRefreshCompleteDelay, delay);
            if (DEBUG) {
                PtrCLog.d(LOG_TAG, "performRefreshComplete after delay: %s", delay);
            }
        }
    }
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 #mLoadingMinTime} or not.
ptr-lib/src/in/srain/cube/views/ptr/PtrFrameLayout.java