RN 使用第三方组件之react-native-image-picker

首先给个github地址：https://github.com/react-community/react-native-image-picker 

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

 

      

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）

 

     

     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 ）

iOS平台配置完毕.

Android:

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

1 2	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:

1 2 3

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

　　

     3.Add the required permissions in AndroidManifest.xml:

1 2	<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

/**底部弹出框选项*/
var photoOptions = {
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

choosePhoto() {
ImagePicker.showImagePicker(photoOptions,(response) =>{
console.log('response'+response);
if (response.didCancel){
showMsg("取消")
return
}else {
let source = { uri: response.uri };

}

})
}