Flutter-UI- ImageView、icon、Button

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  • Post category:其他


button 文字与边框、间距的设置:

/*
  * button 文字与边框、间距 设置
  * */
class MyButtonTheme extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Column(
      children: <Widget>[
        ButtonTheme(
          height: 10,
          minWidth: 10,
          child: FlatButton(
            padding: EdgeInsets.all(0),
            color: Colors.red,
            materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
            child: Text("测试 FlatButton 间距设置"),
            textColor: Colors.green,
            onPressed: (){},
          ),
        )
      ],
    );
  }
}

ImageView 与Icon 使用



/*
  * 网络图片加载,以及本地占位图位图
  * */
class MYFadeInImage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final imageUrl = "https://pics6.baidu.com/feed/b999a9014c086e063365d270d06c3cf30bd1cbac.jpeg?token=bedf7f5f3a30aca56222d77e577584d6";
    return FadeInImage(
      fadeOutDuration: Duration(milliseconds: 1),
      fadeInDuration: Duration(milliseconds: 1),
      placeholder: AssetImage("assets/images/112233.jpeg"),
      image: NetworkImage(imageUrl),
    );
  }
}


/*
* Icon 拓展
* */
class IconExtensionDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // Icon 字体图标和图片图标
    // 字体图标矢量图(放大不会失真)
    // 可设置颜色
    // 图标很多时,占用空间更小
//    return Icon(Icons.motorcycle,size: 400,color: Colors.lightGreen,);
    return Text("\ue91b",style: TextStyle(fontSize: 200,color: Colors.red,fontFamily: "MaterialIcons"),);
  }
}



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