Adding a list of scan results from Wifi to an intent and retrieving from a broadcast receiver?

Question

I want to add a list as a parameter to pass into an intent and then receive it from a broadcast listener, but I'm having some trouble. I cannot figure out how to put this List into the Intent as an extra, or retrieving the list from it. I can get into the broadcast receiver.

//In my Main File: Everthing is registered and working. 
IntentFilter startUsingScanResults = new IntentFilter("StartUsingScanResults");
c.registerReceiver(serviceConsume.ScanResultReceiver, startUsingScanResults); 

List<ScanResult> scanResults = Some values; 
Intent intent = new Intent();
intent.setAction("StartUsingScanResults");

// Then Need to put the List<ScanResults> into the intent.
// ie: intent.putExtra("MyResults", scanResults);

Context.sendBroadcast(intent);

// My broadcast receiver that should have the list inside it.

    public BroadcastReceiver ScanResultReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {

            Bundle extras = intent.getExtras();

            // Need something here to get the list 
            // ie: List<ScanResult> scanResults = extras.getBundle("MyResults"); 
}
};

Hopefully I am clear with this question. I just need to put the list into and get the List from the bundle (or intent).

A ScanResult is in the format of ["","","","","","",""] if that helps. So I guess it might be similar to a multidimensional array.

Any help is appreciated! Thanks

Look at this thread : [passing ArrayList and parcelable Activity][1] [1]: http://stackoverflow.com/questions/5819238/help-with-passing-arraylist-and-parcelable-activity — motiver, Sep 10 '11 at 03:15

score 0 · Accepted Answer · answered Sep 10 '11 at 03:32

I've figured it out. I like simple solutions, and this is pretty much as simple as it gets.

intent.putParcelableArrayListExtra("ScanResults", (ArrayList) scanResults);

And Add this to the Broadcast receiver

ArrayList scanResults = extras.getParcelableArrayList("ScanResults");

So the end result is:

//In my Main File:
IntentFilter startUsingScanResults = new IntentFilter("StartUsingScanResults");
c.registerReceiver(serviceConsume.ScanResultReceiver, startUsingScanResults); 

List<ScanResult> scanResults = Some values; 
Intent intent = new Intent();
intent.setAction("StartUsingScanResults");

intent.putParcelableArrayListExtra("ScanResults", (ArrayList<? extends Parcelable>) scanResults);

Context.sendBroadcast(intent);

// And my broadcast receiver 
   public BroadcastReceiver ScanResultReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {

            Bundle extras = intent.getExtras();
    ArrayList<ScanResult> scanResults = extras.getParcelableArrayList("ScanResults");
}
};

Hopefully this helps out someone in a similar situation.

Adding a list of scan results from Wifi to an intent and retrieving from a broadcast receiver?

1 Answers1