ImageStreamListener _getListener(ImageLoadingBuilder loadingBuilder = null)
{
loadingBuilder = loadingBuilder ?? widget.loadingBuilder;
_lastException = null;
_lastStack = null;
ImageChunkListener onChunk = null;
if (loadingBuilder == null)
{
onChunk = _handleImageChunk;
}
ImageErrorListener onError = null;
if (widget.errorBuilder != null)
{
onError = error => {
setState(() => {
_lastException = error;
// _lastStack = stackTrace;
});
};
}
return(new ImageStreamListener(
onImage: _handleImageFrame,
onChunk: onChunk,
onError: onError
));
}
public static Image network(
string src,
Key key = null,
float scale = 1.0f,
ImageFrameBuilder frameBuilder = null,
ImageLoadingBuilder loadingBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float?width = null,
float?height = null,
Color color = null,
BlendMode colorBlendMode = BlendMode.srcIn,
BoxFit?fit = null,
AlignmentGeometry alignment = null,
ImageRepeat repeat = ImageRepeat.noRepeat,
Rect centerSlice = null,
bool gaplessPlayback = false,
bool matchTextDirection = false,
FilterQuality filterQuality = FilterQuality.low,
IDictionary <string, string> headers = null,
int?cacheWidth = null,
int?cacheHeight = null
)
{
var image = ResizeImage.resizeIfNeeded(cacheWidth: cacheWidth, cacheHeight: cacheHeight,
new NetworkImage(url: src, scale: scale, headers: headers));
return(new Image(
key: key,
image: image,
frameBuilder: frameBuilder,
loadingBuilder: loadingBuilder,
errorBuilder: errorBuilder,
width: width,
height: height,
color: color,
colorBlendMode: colorBlendMode,
fit: fit,
alignment: alignment,
repeat: repeat,
centerSlice: centerSlice,
matchTextDirection: matchTextDirection,
gaplessPlayback: gaplessPlayback,
filterQuality: filterQuality
));
}
public Image(
Key key = null,
ImageProvider image = null,
ImageFrameBuilder frameBuilder = null,
ImageLoadingBuilder loadingBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float?width = null,
float?height = null,
Color color = null,
BlendMode colorBlendMode = BlendMode.srcIn,
BoxFit?fit = null,
AlignmentGeometry alignment = null,
ImageRepeat repeat = ImageRepeat.noRepeat,
Rect centerSlice = null,
bool matchTextDirection = false,
bool gaplessPlayback = false,
FilterQuality filterQuality = FilterQuality.low
) : base(key: key)
{
D.assert(image != null);
this.image = image;
this.frameBuilder = frameBuilder;
this.loadingBuilder = loadingBuilder;
this.errorBuilder = errorBuilder;
this.width = width;
this.height = height;
this.color = color;
this.colorBlendMode = colorBlendMode;
this.fit = fit;
this.alignment = alignment ?? Alignment.center;
this.repeat = repeat;
this.centerSlice = centerSlice;
this.gaplessPlayback = gaplessPlayback;
this.filterQuality = filterQuality;
this.matchTextDirection = matchTextDirection;
}
