react-native-save-image

react-native Android版 保存网络图片到相册

安装

快速安装

$ npm install react-native-save-image --save

$ react-native link react-native-save-image or rnpm link react-native-save-image

手动配置

1. 修改 android/settings.gradle，添加如下的代码：

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

2. 修改 android/app/build.gradle file

	...
	dependencies {
	    ...
	    compile project(':react-native-splash-screen')
	}

3. 修改 MainApplication.java

	import com.widuu.SaveImagePackage; // 顶部导入

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          new SaveImagePackage(), // 这里添加
      );
    }

使用

	import SaveImage from 'react-native-save-image';

	export default class SaveImage extends React.Component {

	    componentDidMount() {
	    	SaveImage.setAlbumName('相册文件夹名称');
    		SaveImage.setCompressQuality(80); // 整数品质
	    }

	    render(){
	    	return(
				<View style={styles.container}>
					<TouchableHighlight onLongPress={()=>SaveImage.downloadImage(图片地址)}>
		            	<Image
			              source={{uri:图片地址}}
			              style={styles.images}
			              resizeMode='contain'
			              />
              		</TouchableHighlight>
            	</View>
	    	);
	    }
	}

API

SaveImage.setAlbumName(String dirName); 		   // 保存到相册的文件夹
SaveImage.setCompressQuality(int compressQuality); // 整数品质
SaveImage.downloadImage(String Url);  			   // 图片地址,例如 http://www.baidu.com/logo.png