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 :
- In the XCode‘s "Project navigator", right click on your project‘s Libraries folder ?
Add Files to <...>
- Go to
node_modules
?react-native-image-picker
?ios
? selectRNImagePicker.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
:
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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‘ ) |
2.Add the compile line to the dependencies in android/app/build.gradle
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dependencies { compile project( ‘:react-native-image-picker‘ ) } |
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" /> |
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
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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:
RN 使用第三方组件之react-native-image-picker(拍照/从相册获取图片)