How can I limit that a file has been successfully sent via bluetooth using Android 4+

I wrote an application that sends a file to a laptop via bluetooth. I would like to be able to delete this file automatically after some confirmation that the file was sent successfully.

I receive a Toast message from BlueTooth. Share that the file has been uploaded, but how can I detect this from my application?

Is there a callback I can use to do this?

Here is my method of sending a file using Android 4+

 File filename = new File(path + "/" + itemValue);
           Uri uri = Uri.fromFile(filename);
           //send file via bluetooth
           Intent intent = new Intent(Intent.ACTION_SEND);
           intent.setType("text/*");
           //this causes us to send via bluetooth only
           intent.setClassName("com.android.bluetooth", "com.android.bluetooth.opp.BluetoothOppLauncherActivity");
           intent.putExtra(Intent.EXTRA_STREAM, uri);
           startActivity(Intent.createChooser(intent, "Send file"));

      

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Browsing the source, I see Constants.java

and HandoverService.java

that appear to indicate that the broadcast will be sent after the transfer is complete.

/** intent action used to indicate the completion of a handover transfer */
public static final String ACTION_BT_OPP_TRANSFER_DONE =
        "android.btopp.intent.action.BT_OPP_TRANSFER_DONE";

      

and

/** intent extra used to indicate the success of a handover transfer */
public static final String EXTRA_BT_OPP_TRANSFER_STATUS =
        "android.btopp.intent.extra.BT_OPP_TRANSFER_STATUS";

public static final int HANDOVER_TRANSFER_STATUS_SUCCESS = 0;
public static final int HANDOVER_TRANSFER_STATUS_FAILURE = 1;

      



In HandoverService

:

if (action.equals(ACTION_BT_OPP_TRANSFER_DONE)) {
    int handoverStatus = intent.getIntExtra(EXTRA_BT_OPP_TRANSFER_STATUS,
            HANDOVER_TRANSFER_STATUS_FAILURE);
    if (handoverStatus == HANDOVER_TRANSFER_STATUS_SUCCESS) {

      

Basically, you need to register BroadcastReceiver

for ACTION_BT_OPP_TRANSFER_DONE

and then check the additional option EXTRA_BT_OPP_TRANSFER_STATUS

and see if it was a success or a failure.

Since they are not part of the public API, please be aware that this may change in a future version.

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