React Native Shared Preferences

Android's Native key value storage system in React Native

Installation

$3

``bash
npm install react-native-shared-preferences@0.0.8 --save
`

$3

`bash
npm install react-native-shared-preferences --save
`

Project setup and initialization


* In android/settings.gradle

`gradle
...
include ':react-native-shared-preferences', ':app'
project(':react-native-shared-preferences').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-shared-preferences/android')
`

* In android/app/build.gradle

`gradle
...
dependencies {
/ YOUR DEPENDENCIES HERE /
compile "com.facebook.react:react-native:+"
compile project(":react-native-shared-preferences") // <--- add this
}

`

* Register Module (in MainApplication.java)

`java
import in.sriraman.sharedpreferences.RNSharedPreferencesReactPackage; // <--- import

public class MainActivity extends ReactActivity {
......

@Override
protected List getPackages() {
return Arrays.asList(
new MainReactPackage(),
new RNSharedPreferencesReactPackage() // <--- Add this
);
}

......

}
`




Usage

#### Import

`javascript
var SharedPreferences = require('react-native-shared-preferences');
`

#### Configure name of preferences file. (Optional. Must be called before other functions.)

`javascript
SharedPreferences.setName("name");
`

#### Set Item

`javascript
SharedPreferences.setItem("key","value");
`

#### Get an value

`javascript
SharedPreferences.getItem("key", function(value){
console.log(value);
});
`

#### Get multiple items

`javascript
SharedPreferences.getItems(["key1","key2"], function(values){
console.log(values)
});
`

#### Get all values

`javascript
SharedPreferences.getAll(function(values){
console.log(values);
});
`

#### Clear all values

`javascript
SharedPreferences.clear();
`

#### Get all keys - returns promise with array of keys
`javascript
SharedPreferences.getAllKeys(function(keys){
console.log(keys);
});
`

#### Remove Item
`javascript
SharedPreferences.removeItem("key");
``

Credits

Sujith Niraikulathan.