Flutter Framework
To start operating locally with Redelcom using a Flutter App, follow the steps below.
Install and configure plugins
To establish communication with the RDCPass system, you will need to install the plugins by adding the following block to pub.dev:
flutter
Package_info 0.4.3+4 => (https:// pub.dev/packages/package_info)
android_intent 0.3.7+7 => (https:// pub.dev/packages/android_intent)
Once installed, you will need to start the configuration by importing the packages in main.dart:
flutter
import 'package:package_info/package_info.dart';
import 'package:android_intent/android_intent.dart';
Sending and Receiving Intents from a native Android App
To process payments, you first need to implement the method that allows you to send an intent to a native Android app:
flutter
Future<void> _intentSend() async {
PackageInfo packageInfo = await PackageInfo.fromPlatform(); setState(() {
String packageName = packageInfo.packageName;
final AndroidIntent intent = AndroidIntent(
action: 'android.intent.action.SEND',
package: 'redelcom.cl.rdcpass ',
arguments: <String, dynamic>{
'packageName': packageName,
'className': '$packageName.MainActivity',
'monto': '200', //pasar la cantidad del envío
},
componentName: 'redelcom.cl.rdcpass.MainActivity',
);
intent.launch();
});
}
To be able to obtain the response to that intent, you need to first add the following block to main.dart:
flutter
static const platform = const MethodChannel('app.channel.shared.data'); String data = "No hay datos";
@Override
void initState() {
super.initState();
getSharedIntent();
}
getSharedIntent() async {
var sharedData = await platform.invokeMethod("getSharedText");
if (sharedData != null) {
setState(() {
data = sharedData;
// Do something…
});
}
}
Then, add the following block in MainActivity.java:
flutter
```flutter
private String sharedIntent;
private static final String CHANNEL = "app.channel.shared.data";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
Intent intent = getIntent();
String action = intent.getAction();
if (action != null && Intent.ACTION_SEND.equals(action)) {
handleSend(intent);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
GeneratedPluginRegistrant.registerWith(flutterEngine);
new MethodChannel(flutterEngine.getDartExecutor().getBinaryMessenger(), CHANNEL) .setMethodCallHandler(
(call, result) -> {
if (call.method.contentEquals("getSharedText")) {
result.success(sharedIntent);
sharedIntent = null;
}
}
);
}
void handleSend(Intent intent) {
sharedIntent = intent.getStringExtra(Intent.EXTRA_TEXT);
}
Finally, add the intent-filter (Activity) to the AndroidManifest.xml file of the compiled app.
flutter
<intent-filter>
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="text/*" />
</intent-filter>
That's it! Now you can start operating with Redelcom from your Flutter app.