// Demonstrates how to iterate through the supported GATT
// Services/Characteristics.
// In this sample, we populate the data structure that is bound to the
// ExpandableListView
// on the UI.
private void displayGattServices(List<BleGattService> gattServices) {
if (gattServices == null) return;
String uuid = null;
String unknownServiceString = getResources().getString(R.string.unknown_service);
String unknownCharaString = getResources().getString(R.string.unknown_characteristic);
ArrayList<HashMap<String, String>> gattServiceData = new ArrayList<HashMap<String, String>>();
ArrayList<ArrayList<HashMap<String, String>>> gattCharacteristicData =
new ArrayList<ArrayList<HashMap<String, String>>>();
mGattCharacteristics = new ArrayList<ArrayList<BleGattCharacteristic>>();
// Loops through available GATT Services.
for (BleGattService gattService : gattServices) {
HashMap<String, String> currentServiceData = new HashMap<String, String>();
uuid = gattService.getUuid().toString().toUpperCase();
currentServiceData.put(
LIST_NAME,
Utils.BLE_SERVICES.containsKey(uuid)
? Utils.BLE_SERVICES.get(uuid)
: unknownServiceString);
currentServiceData.put(LIST_UUID, uuid);
gattServiceData.add(currentServiceData);
ArrayList<HashMap<String, String>> gattCharacteristicGroupData =
new ArrayList<HashMap<String, String>>();
List<BleGattCharacteristic> gattCharacteristics = gattService.getCharacteristics();
ArrayList<BleGattCharacteristic> charas = new ArrayList<BleGattCharacteristic>();
// Loops through available Characteristics.
for (BleGattCharacteristic gattCharacteristic : gattCharacteristics) {
charas.add(gattCharacteristic);
HashMap<String, String> currentCharaData = new HashMap<String, String>();
uuid = gattCharacteristic.getUuid().toString().toUpperCase();
currentCharaData.put(
LIST_NAME,
Utils.BLE_CHARACTERISTICS.containsKey(uuid)
? Utils.BLE_CHARACTERISTICS.get(uuid)
: unknownCharaString);
currentCharaData.put(LIST_UUID, uuid);
gattCharacteristicGroupData.add(currentCharaData);
}
mGattCharacteristics.add(charas);
gattCharacteristicData.add(gattCharacteristicGroupData);
}
SimpleExpandableListAdapter gattServiceAdapter =
new SimpleExpandableListAdapter(
this,
gattServiceData,
android.R.layout.simple_expandable_list_item_2,
new String[] {LIST_NAME, LIST_UUID},
new int[] {android.R.id.text1, android.R.id.text2},
gattCharacteristicData,
android.R.layout.simple_expandable_list_item_2,
new String[] {LIST_NAME, LIST_UUID},
new int[] {android.R.id.text1, android.R.id.text2});
mGattServicesList.setAdapter(gattServiceAdapter);
}
@Override
public boolean onChildClick(
ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
Log.d(TAG, "onChildClick " + groupPosition + " " + childPosition);
if (mGattCharacteristics != null) {
final BleGattCharacteristic characteristic =
mGattCharacteristics.get(groupPosition).get(childPosition);
Intent intent = new Intent(DeviceControlActivity.this, CharacteristicActivity.class);
intent.putExtra("address", mDeviceAddress);
Log.d(TAG, "service size " + mBle.getServices(mDeviceAddress).size());
intent.putExtra(
"service",
mBle.getServices(mDeviceAddress).get(groupPosition).getUuid().toString());
intent.putExtra("characteristic", characteristic.getUuid().toString().toUpperCase());
startActivity(intent);
return true;
}
return false;
}