首页 > 代码库 > RN 使用第三方组件之react-native-image-picker(拍照/从相册获取图片)

RN 使用第三方组件之react-native-image-picker(拍照/从相册获取图片)

首先给个github地址:https://github.com/react-community/react-native-image-picker  英文不行的看下面这个笔记

该插件可以同时给iOS和Android两个平台下使用,但是需要配置下各自平台下的文件

 1.   首先,安装下该插件:

     npm install react-native-image-picker@latest --save

 2.   先别link,先添加进来该库之后 再link.  

 

下面对于各自平台进行配置即可.

   iOS:

      手动添加库 :

  1. In the XCode‘s "Project navigator", right click on your project‘s Libraries folder ? Add Files to <...>
  2. Go to node_modules ? react-native-image-picker ? ios ? select RNImagePicker.xcodeproj

 =>  打开Xcode打开项目,点击根目录,右键选择 Add Files to ‘XXX‘,选中项目中的该路径下的文件即可:node_modules ? react-native-image-picker ? ios ? select RNImagePicker.xcodeproj

 

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OK,添加进来之后,再进行 link命令.  react-native link react-native-image-picker 

3.Add RNImagePicker.a to Build Phases -> Link Binary With Libraries

(注意这里的只要出现RNImagePicker.就可以了,跟前面的图标没关系)

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     4.For iOS 10+, Add the NSPhotoLibraryUsageDescription and NSCameraUsageDescription keys to your Info.plist with strings describing why your app needs these permissions

=>对于适配iOS10,需要在info.plist中配置NSPhotoLibraryUsageDescription和NSCameraUsageDescription

(点击加号 选择privacy camera usage Description 和 privacy. PhotoLibraryUsageDescription )

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iOS平台配置完毕.

Android:

    1.Add the following lines to android/settings.gradle:

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include ‘:react-native-image-picker‘
project(‘:react-native-image-picker‘).projectDir = new File(settingsDir, ‘../node_modules/react-native-image-picker/android‘)

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    2.Add the compile line to the dependencies in android/app/build.gradle:

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dependencies {
    compile project(‘:react-native-image-picker‘)
}

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     3.Add the required permissions in AndroidManifest.xml:

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<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

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     4.Add the import and link the package in MainApplication.java:   

import com.imagepicker.ImagePickerPackage;


.........



 new ImagePickerPackage()

 

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OK,安卓这边也配置完毕.

用法:

   配置弹出框信息

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import  ImagePicker from ‘react-native-image-picker‘//第三方相机
var photoOptions = {
    //底部弹出框选项
    title:‘请选择‘,
    cancelButtonTitle:‘取消‘,
    takePhotoButtonTitle:‘拍照‘,
    chooseFromLibraryButtonTitle:‘选择相册‘,
    quality:0.75,
    allowsEditing:true,
    noData:false,
    storageOptions: {
        skipBackup: true,
        path:‘images‘
    }
}
 

点击事件

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cameraAction = () =>{
        
ImagePicker.showImagePicker(options, (response) => {
  console.log(‘Response = ‘, response);

  if (response.didCancel) {
    console.log(‘User cancelled image picker‘);
  }
  else if (response.error) {
    console.log(‘ImagePicker Error: ‘, response.error);
  }
  else if (response.customButton) {
    console.log(‘User tapped custom button: ‘, response.customButton);
  }
  else {
    let source = { uri: response.uri };

    // You can also display the image using data:
    // let source = { uri: ‘data:image/jpeg;base64,‘ + response.data };

    this.setState({
      avatarSource: source
    });
  }
});
    }

  

<Image source={this.state.avatarSource} style={styles.uploadAvatar} />

这里注意的是 ios的模拟器不能拍照哦

案例:

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RN 使用第三方组件之react-native-image-picker(拍照/从相册获取图片)