tuiBuild method

@override Widget tuiBuild(BuildContext context, TUIKitBuildValue value)

Implementation

@override
Widget tuiBuild(BuildContext context, TUIKitBuildValue value) {
  if (_noMore) return Container();
  // 开启动画
  if (_refreshState == RefreshMode.done ||
      _refreshState == RefreshMode.inactive) {
    _isAnimated = false;
  } else if (!_isAnimated) {
    _isAnimated = true;
    _ballSize1 = 4.0;
    _ballSize2 = 11.0;
    _ballSize3 = 18.0;
    _loopAnimated();
  }
  return Stack(
    children: <Widget>[
      Positioned(
        top: 0.0,
        bottom: 0.0,
        left: 0.0,
        right: 0.0,
        child: Container(
          alignment: Alignment.center,
          height: _indicatorExtent,
          color: widget.backgroundColor,
          child: Row(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              SizedBox(
                width: 20.0,
                height: 20.0,
                child: Center(
                  child: ClipOval(
                    child: AnimatedContainer(
                      color: widget.color,
                      height: _ballSize1,
                      width: _ballSize1,
                      duration: _ballSizeDuration,
                    ),
                  ),
                ),
              ),
              Container(
                width: 5.0,
              ),
              SizedBox(
                width: 20.0,
                height: 20.0,
                child: Center(
                  child: ClipOval(
                    child: AnimatedContainer(
                      color: widget.color,
                      height: _ballSize2,
                      width: _ballSize2,
                      duration: _ballSizeDuration,
                    ),
                  ),
                ),
              ),
              Container(
                width: 5.0,
              ),
              SizedBox(
                width: 20.0,
                height: 20.0,
                child: Center(
                  child: ClipOval(
                    child: AnimatedContainer(
                      color: widget.color,
                      height: _ballSize3,
                      width: _ballSize3,
                      duration: _ballSizeDuration,
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    ],
  );
}