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@uiw/react-native-image-picker

v4.1.1

Published

基于 React Native 的上传图片组件

Downloads

62

Readme

ImagePicker 图片上传

上传图片/预览图片/保存图片

使用本组件需要单独安装

yarn add @uiw/react-native-image-picker react-native-image-picker @react-native-camera-roll/camera-roll react-native-image-viewing

该组件依赖

权限

ios

请在ios/<应用名称>/Info.plist中添加以下代码

<key>NSCameraUsageDescription</key>
<string>This app requires access to the camera.</string>
<key>NSPhotoLibraryAddUsageDescription</key>
<string>This app requires access to the photo.</string>

android

请在android/app/src/main/AndroidManifest.xml <manifest> 标签下添加以下代码

Android 13以下

在 Android 13以下,记得将android:requestLegacyExternalStorage="true"属性添加到<application>中来支持 Android 10

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
Android 13以上

在 Android 13以上,READ_EXTERNAL_STORAGE已已经被READ_MEDIA_IMAGESREAD_MEDIA_VIDEO取代

<uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
<uses-permission android:name="android.permission.READ_MEDIA_VIDEO"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

ImagePicker 基本用法

import React from 'react';
import ImagePicker, { File } from '@uiw/react-native-image-picker';
import { Pressable,View } from 'react-native';
const Demo = () => {
   return (
      <View>
       <ImagePicker
          upload={async(file: File[]) => {
            let imageList: string[] = [];
            await file.forEach(file => imageList.push(file.uri));
            return imageList;
          }}
          selectionLimit={2}
       />
      </View>
    )
  }
}

useImage 基本用法

import React from 'react';
import { useImage } from '@uiw/react-native-image-picker';
import { Pressable,View } from 'react-native';
const Demo = () => {
  const { launchLibrary, launchCamera } = useImage({
    onSuccess: (result) => {
      console.log('result', result);
    }
  })
   return (
      <View>
        <Pressable onPress={launchLibrary}><Text color="primary_background">打开相册</Text></Pressable>
        <Pressable onPress={launchCamera}><Text color="primary_background">打开摄像头</Text></Pressable>
      </View>
    )
  }
}

参数

组件继承@react-native-camera-roll/camera-roll

export interface File {
  fileName: string;
  fileType: string;
  uri: string;
  fileSize?: number;
}
export declare type ImagePickerProps = PropsWithChildren<{
  /** 宽度 */
  width?: number;
  /** 高度 */
  height?: number;
  /** 当前选择的图片uri */
  value?: string[];
  /** 其他图片自定义配置,详细参考react-native-image-picker的option配置 */
  options?: CameraOptions;
  /** 上传图片后是否在背景图展示,如果为 true 上传后会自动展示上传图片(此时只能上传一张) */
  showUploadImg?: boolean;
  /** 上传文件之前的钩子,参数为上传的文件,若返回 false 则停止上传,同时可以在里面执行一些上传提示操作 */
  beforeUpload?: (file: File[]) => boolean | ((file: File) => Promise<boolean>);
  /** 上传 */
  upload?: (file: File[]) => Promise<string[]>;
  /** 上传完成 */
  uploadFinish?: (result?: string[] | undefined) => void;
  /** 取消上传事件回调 */
  onCancel?: (response: ImagePickerResponse) => void;
  /** 上传失败事件回调 */
  onFail?: (response: ImagePickerResponse) => void;
  /** 授权失败的回调 */
  onGrantFail?: () => void;
  /** 预览时长按图片保存回调 */
  onSave?: ((image: any) => void) | undefined;
  /** 打开相册授权的文本 */
  libraryRationale?: Rationale;
  /** 打开摄像头授权的文本 */
  cameraRationale?: Rationale;
  /** 打开相册文本 */
  launchLibraryText?: string;
  /** 打开摄像头文本 */
  launchCameraText?: string;
  /** 从相册选择多少张图片 */
  selectionLimit?: number;
  /** 是否禁用 */
  disabled?: boolean;
  /** 是否只读 */
  readOnly?: boolean;
  /** 上传数量限制 */
  maxCount?: number | undefined;
  /** 预览图片,长按时调用的函数 */
  onLongPress?: (image: ImageSource) => void;
  /** 预览图片,更改图像索引时调用的函数 */
  onImageIndexChange?: (imageIndex: number) => void;
  /** 预览图片,Modal presentation style: default: fullScreen Android:用于overFullScreen隐藏StatusBar */
  presentationStyle?: ModalProps['presentationStyle'];
  /** 预览图片,动画模态呈现:默认fade */
  animationType?: ModalProps['animationType'];
  /** 预览图片,背景色(#000000EE) */
  backgroundColor?: string;
  /** 预览图片,向上或向下滑动关闭模式:默认true */
  swipeToCloseEnabled?: boolean;
  /** 预览图片,通过双击缩放图像:默认true */
  doubleTapToZoomEnabled?: boolean;
  /** 预览图片,在调用 onLongPress 之前以毫秒为单位的延迟:默认800 */
  delayLongPress?: number;
  /** 预览图片,标头组件,imageIndex作为道具获取当前 */
  HeaderComponent?: ComponentType<{
    imageIndex: number;
  }>;
  /** 预览图片,页脚组件,imageIndex作为道具获取当前 */
  FooterComponent?: ComponentType<{
    imageIndex: number;
  }>;
}>;


export type useImageProps = {
  /** 成功回调 */
  onSuccess?: (files: File[]) => void;
  /** 取消回调 */
  onCancel?: () => void;
  /** 错误回调 */
  onError?: (error: ErrorCode) => void;
  /** 授权失败的回调 */
  onGrantFail?: () => void;
  /** 其他图片自定义配置,详细参考react-native-image-picker的option配置 */
  options?: CameraOptions
}