Get Storage
Write
Write data into Get Storage
Syntax
The write method of the GetStorage class in the "Get Storage" package is used to write a value to a key in the storage system. The method takes two parameters: key and value . It does not have a return value. Instead, it saves the data to the storage and returns void .
GetStorage().write(key, value); // SynchronouslyGetStorage().write(key, value); // Synchronouslyawait GetStorage().write(key, value); // Asynchronouslyawait GetStorage().write(key, value); // Asynchronously// Using the then method of the Future object
GetStorage().write(key, value).then((_) {
print('Data has been saved successfully');
});// Using the then method of the Future object
GetStorage().write(key, value).then((_) {
print('Data has been saved successfully');
});Note that the then method in the last example does not receive any value, as the write method does not return anything. It is called when the data has been successfully saved to the storage.
Note: that the write method is asynchronous method, so you should use the await keyword when calling it.
Example
Here's an example of how to use the write method:
final box = GetStorage();
// Store a value with a key
box.write('name', 'John');final box = GetStorage();
// Store a value with a key
box.write('name', 'John');In this example, we are creating a new instance of the GetStorage class and using its write method to store a value of 'John' with a key of 'name'.
When you call the write method with a key and value, the storage system saves the value to disk under the specified key. The value can be of any data type, such as a string, integer, boolean, or even a complex object.
If the key already exists in the storage system, the write method will overwrite the existing value with the new one.
Alternatively, you can use the write method in one line like this:
GetStorage().write('name', 'John');GetStorage().write('name', 'John');Complete Example
Here is an example:
import 'package:flutter/material.dart';
import 'package:get_storage/get_storage.dart';
void main() async {
await GetStorage.init();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
final box = GetStorage();
MyApp({super.key});
@override
Widget build(BuildContext context) {
// Store data
box.write('name', 'John');
// Retrieve data
String name = box.read('name');
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Get Storage Demo'),
),
body: Center(
child: Text('Hello, $name!'),
),
),
);
}
}import 'package:flutter/material.dart';
import 'package:get_storage/get_storage.dart';
void main() async {
await GetStorage.init();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
final box = GetStorage();
MyApp({super.key});
@override
Widget build(BuildContext context) {
// Store data
box.write('name', 'John');
// Retrieve data
String name = box.read('name');
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Get Storage Demo'),
),
body: Center(
child: Text('Hello, $name!'),
),
),
);
}
}