这个问题只出现在 Android 上，你的代码在 iOS 上运行良好。这是由于你正在尝试将图像的高度设置为屏幕高度的 30% 所导致的。

style={{ height: "30%", width: "100%" }}

图像的 高度 计算正确，但它没有添加到 ScrollView 的总高度中。仅在使用百分比设置图片高度时存在问题，使用数字值时可以正常工作。解决问题的一个方法是使用 React-Native 的 Dimensions。

首先，我们需要获取屏幕高度 const { height } = Dimensions.get('window')，然后计算出屏幕的 30% 以设置图像高度 const imageHeight = (30 / 100) * height

解决方案如下：

import React from 'react';
import { Text, View, ScrollView, Image, Dimensions } from 'react-native';
const { height } = Dimensions.get('window');
const imageHeight = (30 / 100) * height; // calculates 30% of the screen

    
        
        
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