I am writing an application that relies on the Android device (for my current testing purposes an HTC Evo 4G and several original Motorola Droids) being discoverable via bluetooth for 300 seconds.
I am targeting Android version 2.0.1, so according to the API I should be able to prompt the user to enable discoverability for a maximum of 300 seconds. On both my Droids and my Evo the prompt window has 300 seconds listed, but they both end after 120 seconds.
The code I used to prompt the user is here:
private void makeDiscoverable() {
Intent discoverableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(
BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
startActivity(discoverableIntent);
}
I am certain that this code runs. However, I later have a handler for when my discoverability status changes (in this case ends, I assume) that reads like this:
if (isDiscoverableChange(action)) {
int discoverState = intent.getIntExtra(
BluetoothAdapter.EXTRA_SCAN_MODE, Short.MIN_VALUE);
if (isDiscoverableState(discoverState)) {
setItOrder();
setUpScanAndDisplay();
} else {
discoverScheduler.cancel();
itScheduler.cancel();
}
}
private boolean isDiscoverableChange(String action) {
return BluetoothAdapter.ACTION_SCAN_MODE_CHANGED.equals(action);
}
private boolean isDiscoverableState(int state) {
return state == BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE;
}
I tried commenting out the portion that runs when discoverability mode ends, just in case it was cancelling everything prematurely, but discoverability really does end after 120 seconds.
Is this a hardware issue, or am I doing something wrong here?
