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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