06 2020 档案
摘要:为了避免deubg信息在生产环境打印,只在测试时打印,在main函数中,改变debugPrint的指向 main(){ if (Api.isDebug) { debugPrint = (String message, {int wrapWidth}) { try { var object = jso
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摘要:ValueListenableBuilder<TextEditingValue>( valueListenable:volumeController, builder: (context, value, child) { final result = value.text.length == 0 ?
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