fix after call setMinMaxScaleX, when scaleX to bound value, chart wil…

[renzhenfei]

After call setMinMaxScaleX, when operate chart zoom, while scaleX or scaleY scale to max value or min value, the chart will jump.

PR Checklist:

• I have tested this extensively and it does not break any existing behavior.
• I have added/updated examples and tests for any new behavior.
• If this is a significant change, an issue has already been created where the problem / solution was discussed: [N/A, or add link to issue here]
  Line data chart jumps during zoom #4489

PR Description

In default BarLineChartTouchListener file, when handle zoom event, source code just post scaleX or scaleY, no check after call postScale the scaleX or scaleY value is valid.

This change limit scale to minScale or maxScale when zoom.

[hannesa2]

Please can you show a before-this-change and a after-this-change screenshot ?

[hannesa2]

It will probably merged here AppDevNext#138

[renzhenfei]

@hannesa2
before

chart_before_cut.mp4

after

chart_after_cut.mp4

[hannesa2]

@renzhenfei Thank you I'll merge it