The final step to using a custom painter is to tell the Synth rendering engine that you, not the SynthPainter class, will be supplying the function.

使用定制painter的最后一步是告诉Synth呈现引擎，是您自己而不是SynthPainter类来提供函数。

youdao

The final step to using a custom painter is to tell the Synth rendering engine that you, not the SynthPainter class, will be supplying the function.

使用定制painter的最后一步是告诉Synth呈现引擎，是您自己而不是SynthPainter类来提供函数。

youdao