有一个占位符用于反应本机选择器 [英] Have a placeholder for react native picker
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问题描述
有没有办法在用户点击之前显示的反应本机选择器的占位符.这个想法是有一个选择器，上面写着国籍"，一旦你点击并选择你的国家，它就会呈现这个国家.我想在选择器中没有国籍"作为可用选项的情况下执行此操作.
Is there a way to have a placeholder for the react native picker that is shown before the user clicks on it. The idea would be to have a picker that says "Nationality" and once you click and choose your country it renders the country. I want to do this without having "Nationality" as an available option in the picker.
推荐答案
Place a first child as <Picker.Item value='' label='Placeholder text...'/>
Place a first children as <Picker.Item value='' label='Placeholder text...' />
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