Broken image placeholder code example

Example 1: how to give placeholder to image.network

FadeInImage(image: NetworkImage(url), placeholder: AssetImage(assetName)

Example 2: why place holder does not show

<input name="nom" type="text" value="Votre Nom" onfocus="if(this.value==this.defaultValue)this.value='';" onblur="if(this.value=='')this.value=this.defaultValue;">