React-native 选择器值不会改变，如果它比我所有道具的选择器值发生变化

发布于 2025-01-17 05:52:52 字数 497 浏览 2 评论 0原文

React-native 选择器值不会改变，如果它比我所有道具的选择器值发生变化：当我添加新任务并设置优先级时，我在 TODO 列表中使用它，当我更改其中一个任务的优先级时，它会更改所有任务的优先级。这是我的代码：

const [pickerValue, setPickerValue] = useState('Low');
<Picker style={styles.picker}  selectedValue = {pickerValue} onValueChange={(itemValue) => setPickerValue(itemValue)} >
    <Picker.Item label="Low" value="Low"/>
    <Picker.Item label="Medium" value="Medium"/>
    <Picker.Item label="High" value="High"/>
</Picker>

原文

React-native the picker value not changing if it changes than all my prop's picker value changes:
I am using this in TODO's list when I add new tasks and set priority, and when I change one of them priority it changes all tasks priority.
This is my code :

const [pickerValue, setPickerValue] = useState('Low');
<Picker style={styles.picker}  selectedValue = {pickerValue} onValueChange={(itemValue) => setPickerValue(itemValue)} >
    <Picker.Item label="Low" value="Low"/>
    <Picker.Item label="Medium" value="Medium"/>
    <Picker.Item label="High" value="High"/>
</Picker>

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