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Update chart_container.dart #739

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Update chart_container.dart #739

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8 changes: 4 additions & 4 deletions charts_flutter/lib/src/chart_container.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -202,11 +202,11 @@ class ChartContainerRenderObject<D> extends RenderCustomPaint

// Sometimes chart behaviors try to draw the chart outside of a Flutter draw
// cycle. Schedule a frame manually to handle these cases.
if (!SchedulerBinding.instance!.hasScheduledFrame) {
SchedulerBinding.instance!.scheduleFrame();
if (!SchedulerBinding.instance.hasScheduledFrame) {
SchedulerBinding.instance.scheduleFrame();
}

SchedulerBinding.instance!.addPostFrameCallback(startAnimationController);
SchedulerBinding.instance.addPostFrameCallback(startAnimationController);
}

/// Request Flutter to rebuild the widget/container of chart.
Expand All @@ -229,7 +229,7 @@ class ChartContainerRenderObject<D> extends RenderCustomPaint
// This is needed to request rebuild after the legend has been added in the
// post process phase of the chart, which happens during the chart widget's
// build cycle.
SchedulerBinding.instance!.addPostFrameCallback(doRebuild);
SchedulerBinding.instance.addPostFrameCallback(doRebuild);
}

/// When Flutter's markNeedsLayout is called, layout and paint are both
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