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Update LineChartSample6 #1658

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merged 1 commit into from
May 9, 2024
Merged

Update LineChartSample6 #1658

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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
## newVersion
* **Improvement** (by @imaNNeo) Update LineChartSample6 to implement a way to show a tooltip on a single spot, #1620

## 0.67.0
* **FEATURE** (by @julien4215) Add direction property to the [HorizontalLineLabel](https://github.com/imaNNeo/fl_chart/blob/main/repo_files/documentations/base_chart.md#horizontallinelabel) and [VerticalLineLabel](https://github.com/imaNNeo/fl_chart/blob/main/repo_files/documentations/base_chart.md#verticallinelabel), #1574
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70 changes: 57 additions & 13 deletions example/lib/presentation/samples/line/line_chart_sample6.dart
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Expand Up @@ -123,7 +123,39 @@ class LineChartSample6 extends StatelessWidget {
aspectRatio: 2,
child: LineChart(
LineChartData(
lineTouchData: const LineTouchData(enabled: false),
lineTouchData: LineTouchData(
touchTooltipData: LineTouchTooltipData(
tooltipRoundedRadius: 0,
getTooltipColor: (spot) => Colors.white,
getTooltipItems: (List<LineBarSpot> touchedSpots) {
return touchedSpots.map((LineBarSpot touchedSpot) {
return LineTooltipItem(
touchedSpot.y.toString(),
TextStyle(
color: touchedSpot.bar.gradient!.colors.first,
fontWeight: FontWeight.bold,
fontSize: 20,
),
);
}).toList();
},
),
getTouchedSpotIndicator: (
_,
indicators,
) {
return indicators
.map((int index) => const TouchedSpotIndicatorData(
FlLine(color: Colors.transparent),
FlDotData(show: false),
))
.toList();
},
touchSpotThreshold: 12,
distanceCalculator:
(Offset touchPoint, Offset spotPixelCoordinates) =>
(touchPoint - spotPixelCoordinates).distance,
),
lineBarsData: [
LineChartBarData(
gradient: LinearGradient(
Expand All @@ -141,12 +173,18 @@ class LineChartSample6 extends StatelessWidget {
),
dotData: FlDotData(
show: true,
getDotPainter: (spot, percent, barData, index) =>
FlDotCirclePainter(
radius: 12,
color: Colors.transparent,
strokeColor: AppColors.mainTextColor2,
),
getDotPainter: (spot, percent, barData, index) {
return FlDotCirclePainter(
radius: 12,
color: Color.lerp(
line1Color1,
line1Color2,
percent / 100,
)!,
strokeColor: Colors.white,
strokeWidth: 1,
);
},
),
),
LineChartBarData(
Expand All @@ -165,12 +203,18 @@ class LineChartSample6 extends StatelessWidget {
),
dotData: FlDotData(
show: true,
getDotPainter: (spot, percent, barData, index) =>
FlDotCirclePainter(
radius: 12,
color: Colors.transparent,
strokeColor: AppColors.mainTextColor2,
),
getDotPainter: (spot, percent, barData, index) {
return FlDotCirclePainter(
radius: 12,
color: Color.lerp(
line2Color1,
line2Color2,
percent / 100,
)!,
strokeColor: Colors.white,
strokeWidth: 1,
);
},
),
),
],
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