如何在 React Native 中设置 `ImageBackground` 图像位置.就像在 css 中的“背景位置:底部"一样? [英] How to set `ImageBackground` image position in react native. Like in css `background-postion: bottom`?

问题描述

所以我在 react native 中设置背景图片，但我需要将背景图片的位置设置为底部.所以如果有人知道如何实现这一点.

So I'm setting a background image in react native but I need the position of the background image to be set to bottom. So if anyone knows how to achieve this.

我已经尝试添加 backgroundPosition 但它似乎不受支持

I have tried adding backgroundPosition but it seems it is not supported

<ImageBackground
  source={require("../assets/img/bg-top.png")}
  // resizeMethod={'auto'}
  style={{
    width: "100%",
    height: 120,
    padding: 20,
    paddingVertical: 40,
    backgroundPosition: "bottom" // not working
  }}
  imageStyle={{
    resizeMode: "cover",
    alignSelf: "flex-end"
  }}
>
  <Text style={{ color: "#D8D8D8", fontSize: 16 }}>Login</Text>
</ImageBackground>;

我希望图像对齐应该从底部开始，而不是从顶部开始

I expect the image alignment should start from the bottom rather it starts from the top

推荐答案

React native 提供了 bottom 和 position 标签来设置 UI 在底部.请将图片样式中的 backgroundPosition 标签替换为

React native provided bottom and position tag to set UI at bottom. Please replace backgroundPosition tag from image style into

位置:'绝对'，底部:0

 <ImageBackground
  // resizeMethod={'auto'}
  style={{
    width: "100%",
    height: 120,
    backgroundColor:'#000',
    padding: 20,
    paddingVertical: 40,
    position: 'absolute',
  bottom:0
  }}
  imageStyle={{
    resizeMode: "cover",
    alignSelf: "flex-end"
  }}
>
  <Text style={{ color: "#D8D8D8", fontSize: 16 }}>Login</Text>
</ImageBackground>

请查看小吃展

https://snack.expo.io/@vishal7008/bottom-ui

这篇关于如何在 React Native 中设置 `ImageBackground` 图像位置.就像在 css 中的“背景位置:底部"一样?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！