@Override
protected void onResume() {
super.onResume();
// Repopulate (which isn't too bad since it's cached in the settings
// bluetooth manager
addDevices();
if (mScreenType == SCREEN_TYPE_SETTINGS) {
mEnabler.resume();
mDiscoverableEnabler.resume();
mNamePreference.resume();
}
mLocalManager.registerCallback(this);
mDeviceList.setProgress(mLocalManager.getBluetoothAdapter().isDiscovering());
mLocalManager.startScanning(false);
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
intentFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
registerReceiver(mReceiver, intentFilter);
mLocalManager.setForegroundActivity(this);
}
private void onBluetoothStateChanged(int bluetoothState) {
// When bluetooth is enabled (and we are in the activity, which we are),
// we should start a scan
if (bluetoothState == BluetoothAdapter.STATE_ON) {
mLocalManager.startScanning(false);
} else if (bluetoothState == BluetoothAdapter.STATE_OFF) {
mDeviceList.setProgress(false);
}
}
@Override
protected void onPause() {
super.onPause();
mDevicePreferenceMap.clear();
mDeviceList.removeAll();
mLocalManager.setForegroundActivity(null);
mDevicePreferenceMap.clear();
mDeviceList.removeAll();
unregisterReceiver(mReceiver);
mLocalManager.unregisterCallback(this);
if (mScreenType == SCREEN_TYPE_SETTINGS) {
mNamePreference.pause();
mDiscoverableEnabler.pause();
mEnabler.pause();
}
}
public void onScanningStateChanged(boolean started) {
mDeviceList.setProgress(started);
}
public void onDeviceDeleted(CachedBluetoothDevice cachedDevice) {
BluetoothDevicePreference preference = mDevicePreferenceMap.remove(cachedDevice);
if (preference != null) {
mDeviceList.removePreference(preference);
}
}
private void createDevicePreference(CachedBluetoothDevice cachedDevice) {
BluetoothDevicePreference preference = new BluetoothDevicePreference(this, cachedDevice);
mDeviceList.addPreference(preference);
mDevicePreferenceMap.put(cachedDevice, preference);
}