public SmartRefreshHeader(
int mode,
RefreshHeaderType type = RefreshHeaderType.activityIndicator,
Key key = null
) : base(key: key)
{
this.mode = mode;
this.type = type;
}
Widget _buildOther()
{
CrossFadeState?crossFadeState;
string refreshText;
AnimatingType type;
switch (this.mode)
{
case 0: {
refreshText = "探索新鲜内容";
type = AnimatingType.stop;
crossFadeState = CrossFadeState.showFirst;
break;
}
case 1: {
refreshText = "探索新鲜内容";
type = AnimatingType.stop;
crossFadeState = CrossFadeState.showFirst;
break;
}
case 2: {
refreshText = "";
type = AnimatingType.repeat;
crossFadeState = CrossFadeState.showSecond;
break;
}
case 3: {
refreshText = "刷新成功";
type = AnimatingType.stop;
crossFadeState = CrossFadeState.showFirst;
break;
}
case 4: {
refreshText = "刷新失败";
type = AnimatingType.stop;
crossFadeState = CrossFadeState.showFirst;
break;
}
default: {
refreshText = "";
type = AnimatingType.stop;
crossFadeState = null;
break;
}
}
List <string> images = new List <string>();
for (int index = 0; index < 237; index++)
{
images.Add($"image/refresh-loading/refresh-loading{index}");
}
Widget child = new AnimatedCrossFade(
firstChild: _buildText(text: refreshText),
secondChild: new FrameAnimationImage(
images: images,
type: type
),
duration: TimeSpan.FromMilliseconds(300),
crossFadeState: crossFadeState,
alignment: Alignment.center,
layoutBuilder: _layoutBuilder
);
return(new Container(
height: 56.0f,
alignment: Alignment.center,
child: child
));
}
