I am trying to use the datawedge intent API with my flutter application, on a Zebra android scanner. I started to use the Zebra EMDK API from a git repository, which works perfectly. Now I want to migrate it (which is recommended by Zebra) because I want it to be also available on mobiles (if it is possible).
I am trying to follow the instructions from this page and merge it with the code from the git repo, but no scan event is detected in my app.
Has someone already done this and could help me?
Here is my MainActivity.java:
package com.example.test_datawedge;
import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugins.GeneratedPluginRegistrant;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
// import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import io.flutter.plugin.common.EventChannel;
import io.flutter.plugin.common.EventChannel.EventSink;
import io.flutter.plugin.common.EventChannel.StreamHandler;
import io.flutter.plugins.GeneratedPluginRegistrant;
import java.util.ArrayList;
public class MainActivity extends FlutterActivity {
private static final String BARCODE_RECEIVED_CHANNEL = "samples.flutter.io/barcodereceived";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GeneratedPluginRegistrant.registerWith(this);
// setContentView(R.layout.activity_main);
IntentFilter filter = new IntentFilter();
filter.addCategory(Intent.CATEGORY_DEFAULT);
filter.addAction(getResources().getString(R.string.activity_intent_filter_action));
// registerReceiver(myBroadcastReceiver, filter);
new EventChannel(getFlutterView(), BARCODE_RECEIVED_CHANNEL).setStreamHandler(
new StreamHandler() {
private BroadcastReceiver barcodeBroadcastReceiver;
@Override
public void onListen(Object arguments, EventSink events) {
Log.d("FLUTTERDEMO", "EventChannelOnListen");
barcodeBroadcastReceiver = createBarcodeBroadcastReceiver(events);
registerReceiver(
barcodeBroadcastReceiver, new IntentFilter("readBarcode"));
}
@Override
public void onCancel(Object arguments) {
Log.d("FLUTTERDEMO", "EventChannelOnCancel");
unregisterReceiver(barcodeBroadcastReceiver);
barcodeBroadcastReceiver = null;
}
}
);
}
// @Override
// protected void onDestroy()
// {
// super.onDestroy();
// unregisterReceiver(myBroadcastReceiver);
// }
//
// After registering the broadcast receiver, the next step (below) is to define it.
// Here it's done in the MainActivity.java, but also can be handled by a separate class.
// The logic of extracting the scanned data and displaying it on the screen
// is executed in its own method (later in the code). Note the use of the
// extra keys are defined in the strings.xml file.
//
private BroadcastReceiver createBarcodeBroadcastReceiver(final EventSink events) {
return new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.d("FLUTTERDEMO", "createBarcodeBroadcastReceiver " + action);
if(action.equals("readBarcode")){
String barcode = intent.getStringExtra("barcode");
String barcodetype = intent.getStringExtra("barcodetype");
Log.d("FLUTTERDEMO", "createBarcodeBroadcastReceiver " + barcode);
events.success(barcode);
}
}
};
}
//
// The section below assumes that a UI exists in which to place the data. A production
// application would be driving much of the behavior following a scan.
//
// private void displayScanResult(Intent initiatingIntent, String howDataReceived)
// {
// String decodedSource = initiatingIntent.getStringExtra(getResources().getString(R.string.datawedge_intent_key_source));
// String decodedData = initiatingIntent.getStringExtra(getResources().getString(R.string.datawedge_intent_key_data));
// String decodedLabelType = initiatingIntent.getStringExtra(getResources().getString(R.string.datawedge_intent_key_label_type));
// final TextView lblScanSource = (TextView) findViewById(R.id.lblScanSource);
// final TextView lblScanData = (TextView) findViewById(R.id.lblScanData);
// final TextView lblScanLabelType = (TextView) findViewById(R.id.lblScanDecoder);
// lblScanSource.setText(decodedSource + " " + howDataReceived);
// lblScanData.setText(decodedData);
// lblScanLabelType.setText(decodedLabelType);
// }
}
