FadeInImage.assetNetwork(//dm_no_image750.png
image:_model.imageUrl,
placeholder:"assets/images/dm_no_image750.png",
fit: BoxFit.cover,
)
FadeInImage.assetNetwork(//dm_no_image750.png
image:_model.imageUrl,
placeholder:"assets/images/dm_no_image750.png",
fit: BoxFit.cover,
)
本文标题：flutter占位图
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