1. 前言
<1> 自定义样式 （节点和滑竿）
<2> 过渡值和分段值效果都可实现
2. 效果展示
 diamond_node_slider.gif
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 diamond_node_slider.jpg
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3. 使用
该插件为本人撰写，点击pub.dev查看。
dependencies:
diamond_node_slider: ^1.0.6
4. 代码
///常用
DiamondNodeSlisder(
activeTrackColor: Color(0xFF878E9A),
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 2.5,
divisions: 4,
maxValue: 100,
minValue: 0,
textUnitStr: '%',
valueChanged:(value,ratioV) {
print('value===$value');
},
),
///最小值不为0
DiamondNodeSlisder(
activeTrackColor: Colors.red,
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 2.5,
divisions: 5,
maxValue: 125,
minValue: 1,
textUnitStr: 'x',
valueChanged:(value,ratioV) {
print('value===$value');
},
),
///节点文字不显示
DiamondNodeSlisder(
activeTrackColor: Colors.blue,
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 2.5,
divisions: 4,
maxValue: 80,
minValue: 0,
textShowBool: false,
valueChanged:(value,ratioV) {
print('value===$value');
},
),
///节点圆形、设置轨道高度
DiamondNodeSlisder(
activeTrackColor: Colors.orange,
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 5, //轨道高度
nodeWidth: 15, //节点宽高
divisions: 4,
maxValue: 120,
minValue: 0,
isRhombus: false, //非菱形
valueChanged:(value,ratioV) {
print('value===$value');
},
),
///直接跳到节点，无过渡
DiamondNodeSlisder(
activeTrackColor: Colors.green,
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 2.5,
divisions: 4,
maxValue: 150,
minValue: 0,
textUnitStr: 'm',
toNodeBool: true,
valueChanged:(value,ratioV) {
print('value===$value');
},
),
///无节点
DiamondNodeSlisder(
activeTrackColor: Colors.purple,
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 5,
divisions: 0, //段数为0
nodeWidth: 15,
isRhombus: false,
maxValue: 100,
minValue: 0,
textUnitStr: '%',
textShowBool: false,
valueChanged: (value, ratioV) {
print('value===$value');
},
),
///有初始值
DiamondNodeSlisder(
ratioValue: _ratioValue,
activeTrackColor: Color(0xFF878E9A),
unActiveTrackColor: Color(0xFFEBEBEB),
width: 300.0,
height: 2.5,
divisions: 4,
maxValue: sliderMaxValue,
minValue: sliderMinValue,
textUnitStr: 'x',
valueChanged:(value,ratioV) {
setState(() {
_currentValue= value;
print('_currentValue===$_currentValue');
_ratioValue = ratioV;
print('ratioV===$_ratioValue');
//输入框赋值
leverController.text='${value}x';
});
},
)
5. 参数说明
final double width;//长度
final double height;//高度
final int? maxValue;//最大值
final int? minValue;//最小值
final int divisions;//段数
final Color? unActiveTrackColor;//不活跃颜色
final Color? activeTrackColor;//活跃颜色
final String textUnitStr;//文字单位：%、x等
final bool textShowBool;//是否显示节点下的文字
final double nodeWidth;//节点宽高
final bool isRhombus;//true:菱形（默认） false：圆形
final bool toNodeBool;//滑动直接跳到节点，无过渡
final double? ratioValue; //百分率，范围:0-1, 初始值/ maxValue
final Function(int) valueChanged;//回调slider值
