• react native 之 react-native-image-picke的详细使用图解


    最近需要在react native项目中集成相机和相册的功能,于是在网上找了一个好用的第三方插件:react-native-image-picke.

    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,github上有详细的文字说明,但是本人对于文字向来无感,所以特地图解记录下配置说明和用法.

     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:

    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

          

    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

     

         

         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

    iOS平台配置完毕.

    Android:

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

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

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

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

      

         3.Add the required permissions in AndroidManifest.xml:

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

      

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

    import com.imagepicker.ImagePickerPackage;
    
    
    .........
    
    
    
     new ImagePickerPackage()

     

     

    OK,安卓这边也配置完毕.

    用法:

       配置弹出框信息

    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

    cameraAction = () =>{
             ImagePicker.showImagePicker(photoOptions,(response) =>{
                 console.log('response'+response);
                 if (response.didCancel){
                     return
                 }
             })
        }
    

      

    案例:

     

    demo地址:https://github.com/pheromone/mycamera

      

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  • 原文地址:https://www.cnblogs.com/shaoting/p/6148085.html
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