Java tutorial
/* * Copyright 2016 Junk Chen * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.beestar.ble.ble.ui; import android.Manifest; import android.app.ProgressDialog; import android.bluetooth.BluetoothGatt; import android.bluetooth.BluetoothGattCharacteristic; import android.bluetooth.BluetoothGattDescriptor; import android.bluetooth.BluetoothGattService; import android.bluetooth.BluetoothProfile; import android.content.BroadcastReceiver; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.ServiceConnection; import android.content.pm.PackageManager; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import com.junkchen.blelib.BleService; import com.junkchen.blelib.MultipleBleService; import com.junkchen.blelib.sample.R; import com.beestar.ble.ble.adapter.CommonAdapter; import com.beestar.ble.ble.adapter.ViewHolder; import com.beestar.ble.ble.greendao.CommonUtils; import com.beestar.ble.ble.greendao.Equipment_Device; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class MultipleBleActivity extends AppCompatActivity { //Debugging private static final String TAG = MultipleBleActivity.class.getSimpleName(); //Constant public static final int SERVICE_BIND = 1; public static final int CONNECT_CHANGE = 2; public static final int REQUEST_CODE_ACCESS_COARSE_LOCATION = 1; //Member fields private boolean mIsBind; private MultipleBleService mBleService; private CommonAdapter<Map<String, Object>> deviceAdapter; private List<Map<String, Object>> deviceList; private String connDeviceName; private String connDeviceAddress; //Layout view private Button btn_scanBle; private TextView txtv_connNum; private ListView lstv_devList; private CommonUtils commonUtils; private ServiceConnection serviceConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { mBleService = ((MultipleBleService.LocalBinder) service).getService(); if (mBleService != null) mHandler.sendEmptyMessage(SERVICE_BIND); if (mBleService.initialize()) { if (mBleService.enableBluetooth(true)) { handleVersionPermission(); Toast.makeText(MultipleBleActivity.this, "Bluetooth was opened", Toast.LENGTH_SHORT).show(); } } else { Toast.makeText(MultipleBleActivity.this, "not support Bluetooth", Toast.LENGTH_SHORT).show(); } } @Override public void onServiceDisconnected(ComponentName name) { mBleService = null; mIsBind = false; } }; private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case SERVICE_BIND: setBleServiceListener(); break; case CONNECT_CHANGE: deviceAdapter.notifyDataSetChanged(); txtv_connNum.setText(getString(R.string.dev_conn_number) + mBleService.getConnectDevices().size()); Log.i(TAG, "handleMessage: " + mBleService.getConnectDevices().toString()); break; } } }; private TextView getdata; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_ble_scan); initView(); initAdapter(); registerReceiver(bleReceiver, makeIntentFilter()); doBindService(); } @Override protected void onStop() { super.onStop(); doUnBindService(); unregisterReceiver(bleReceiver); } @Override public void onBackPressed() { if (mBleService.isScanning()) { mBleService.scanLeDevice(false); return; } super.onBackPressed(); } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { Log.i(TAG, "onRequestPermissionsResult: p[0] = " + permissions[0] + ", g[0] = " + grantResults[0]); switch (requestCode) { case REQUEST_CODE_ACCESS_COARSE_LOCATION: { // If request is cancelled, the result arrays are empty. if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { // permission was granted, yay! Do the // contacts-related task you need to do. showDialog(getResources().getString(R.string.scanning)); mBleService.scanLeDevice(true); } else { // permission denied, boo! Disable the // functionality that depends on this permission. Toast.makeText(MultipleBleActivity.this, "?????ble", Toast.LENGTH_SHORT).show(); } break; } // other 'case' lines to check for other // permissions this app might request default: super.onRequestPermissionsResult(requestCode, permissions, grantResults); } } private void handleVersionPermission() { if (Build.VERSION.SDK_INT >= 23) { Log.i(TAG, "onCreate: checkSelfPermission"); int checkSelfPermission = ContextCompat.checkSelfPermission(MultipleBleActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION); Log.i(TAG, "handleVersionPermission: checkSelfPermission = " + checkSelfPermission); if (checkSelfPermission != PackageManager.PERMISSION_GRANTED) { Log.i(TAG, "onCreate: Android 6.0 ???"); boolean showRequestPermissionRationale = ActivityCompat.shouldShowRequestPermissionRationale( MultipleBleActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION); Log.i(TAG, "handleVersionPermission: showRequestPermissionRationale = " + showRequestPermissionRationale); if (showRequestPermissionRationale) { Log.i(TAG, "*********onCreate: shouldShowRequestPermissionRationale**********"); Toast.makeText(MultipleBleActivity.this, "??????", Toast.LENGTH_SHORT).show(); } ActivityCompat.requestPermissions(MultipleBleActivity.this, new String[] { Manifest.permission.ACCESS_COARSE_LOCATION }, REQUEST_CODE_ACCESS_COARSE_LOCATION); } else { Log.i(TAG, "handleVersionPermission: scanning..."); showDialog(getResources().getString(R.string.scanning)); mBleService.scanLeDevice(true); } } else { Log.i(TAG, "handleVersionPermission: scanning..."); showDialog(getResources().getString(R.string.scanning)); mBleService.scanLeDevice(true); } } private void initView() { btn_scanBle = (Button) findViewById(R.id.btn_scanBle); txtv_connNum = (TextView) findViewById(R.id.txtv_connNum); lstv_devList = (ListView) findViewById(R.id.lstv_devList); getdata = ((TextView) findViewById(R.id.getdata)); txtv_connNum.setVisibility(View.VISIBLE); btn_scanBle.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (!mBleService.isScanning()) { mBleService.close(); deviceList.clear(); handleVersionPermission(); } } }); } private void initAdapter() { deviceList = new ArrayList<>(); deviceAdapter = new CommonAdapter<Map<String, Object>>(this, R.layout.item_device, deviceList) { @Override public void convert(ViewHolder holder, final Map<String, Object> deviceMap) { holder.setText(R.id.txtv_name, deviceMap.get("name").toString()); holder.setText(R.id.txtv_address, deviceMap.get("address").toString()); holder.setText(R.id.txtv_connState, ((boolean) deviceMap.get("isConnect")) ? getResources().getString(R.string.state_connected) : getResources().getString(R.string.state_disconnected)); holder.setText(R.id.btn_connect, ((boolean) deviceMap.get("isConnect")) ? getResources().getString(R.string.disconnected) : getResources().getString(R.string.connected)); holder.getView(R.id.btn_connect).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if ((boolean) deviceMap.get("isConnect")) { mBleService.disconnect(deviceMap.get("address").toString()); showDialog(getString(R.string.disconnecting)); } else { connDeviceAddress = (String) deviceMap.get("address"); connDeviceName = (String) deviceMap.get("name"); HashMap<String, Object> connDevMap = new HashMap<String, Object>(); connDevMap.put("name", connDeviceName); connDevMap.put("address", connDeviceAddress); connDevMap.put("isConnect", false); mBleService.connect(connDeviceAddress); showDialog(getString(R.string.connecting)); } } }); } }; lstv_devList.setAdapter(deviceAdapter); } private void setBleServiceListener() { mBleService.setOnConnectListener(new MultipleBleService.OnConnectionStateChangeListener() { @Override public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) { if (newState == BluetoothProfile.STATE_DISCONNECTED) { for (int i = 0; i < deviceList.size(); i++) { HashMap<String, Object> devMap = (HashMap<String, Object>) deviceList.get(i); if (devMap.get("address").toString().equals(gatt.getDevice().getAddress())) { ((HashMap) deviceList.get(i)).put("isConnect", false); return; } } } else if (newState == BluetoothProfile.STATE_CONNECTING) { } else if (newState == BluetoothProfile.STATE_CONNECTED) { for (int i = 0; i < deviceList.size(); i++) { HashMap<String, Object> devMap = (HashMap<String, Object>) deviceList.get(i); if (devMap.get("address").toString().equals(gatt.getDevice().getAddress())) { ((HashMap) deviceList.get(i)).put("isConnect", true); return; } } } else if (newState == BluetoothProfile.STATE_DISCONNECTING) { } } }); //?? mBleService.setOnServicesDiscoveredListener(new MultipleBleService.OnServicesDiscoveredListener() { @Override public void onServicesDiscovered(BluetoothGatt gatt, int status) { String characteristics_uuid_read = null; String characteristics_uuid_write = null; String read_Uuid = null; String write_Uuid = null; BluetoothGattCharacteristic characteristic; if (status == gatt.GATT_SUCCESS) { String address = gatt.getDevice().getAddress(); List<BluetoothGattService> services = gatt.getServices(); commonUtils = new CommonUtils(getApplicationContext()); int j, k; for (int i = 0; i < services.size(); i++) { if (services.get(i).getUuid().toString().contains("ffe5")) { write_Uuid = services.get(i).getUuid().toString(); Log.i("info", "--------------------" + i); characteristics_uuid_write = services.get(i).getCharacteristics().get(0).getUuid() .toString(); } if (services.get(i).getUuid().toString().contains("ffe0")) { Log.i("info", "--------------------" + i); characteristic = services.get(i).getCharacteristic(services.get(i).getUuid()); read_Uuid = services.get(i).getUuid().toString(); characteristics_uuid_read = services.get(i).getCharacteristics().get(0).getUuid() .toString(); } } Equipment_Device equipment_device = new Equipment_Device(); equipment_device.setAddress(address); equipment_device.setRead_uuid(read_Uuid); equipment_device.setRead_uuid(write_Uuid); equipment_device.setCh_read_uuid(characteristics_uuid_read); equipment_device.setCh_write_uuid(characteristics_uuid_write); commonUtils.insertStudent(equipment_device); } } }); mBleService.setOnConnectListener(new MultipleBleService.OnConnectionStateChangeListener() { @Override public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) { } }); mBleService.setOnDataAvailableListener(new MultipleBleService.OnDataAvailableListener() { @Override public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) { } @Override public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) { } @Override public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) { } }); } private void doBindService() { Intent serviceIntent = new Intent(this, MultipleBleService.class); bindService(serviceIntent, serviceConnection, Context.BIND_AUTO_CREATE); } private void doUnBindService() { if (mIsBind) { unbindService(serviceConnection); mBleService = null; mIsBind = false; } } protected BroadcastReceiver bleReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().equals(BleService.ACTION_BLUETOOTH_DEVICE)) { String tmpDevName = intent.getStringExtra("name"); String tmpDevAddress = intent.getStringExtra("address"); if (!tmpDevName.equals("")) { Log.i(TAG, "name: " + tmpDevName + ", address: " + tmpDevAddress); HashMap<String, Object> deviceMap = new HashMap<>(); deviceMap.put("name", tmpDevName); deviceMap.put("address", tmpDevAddress); deviceMap.put("isConnect", false); deviceList.add(deviceMap); deviceAdapter.notifyDataSetChanged(); } } else if (intent.getAction().equals(BleService.ACTION_GATT_CONNECTED)) { Log.i(TAG, "onReceive: CONNECTED: " + mBleService.getConnectDevices().size()); mHandler.sendEmptyMessage(CONNECT_CHANGE); dismissDialog(); } else if (intent.getAction().equals(BleService.ACTION_GATT_DISCONNECTED)) { Log.i(TAG, "onReceive: DISCONNECTED: " + mBleService.getConnectDevices().size()); mHandler.sendEmptyMessage(CONNECT_CHANGE); dismissDialog(); } else if (intent.getAction().equals(BleService.ACTION_SCAN_FINISHED)) { btn_scanBle.setEnabled(true); dismissDialog(); } } }; private static IntentFilter makeIntentFilter() { final IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(BleService.ACTION_BLUETOOTH_DEVICE); intentFilter.addAction(BleService.ACTION_GATT_CONNECTED); intentFilter.addAction(BleService.ACTION_GATT_DISCONNECTED); intentFilter.addAction(BleService.ACTION_SCAN_FINISHED); return intentFilter; } /** * Show dialog */ private ProgressDialog progressDialog; private void showDialog(String message) { progressDialog = new ProgressDialog(this); progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); progressDialog.setCanceledOnTouchOutside(false); progressDialog.setMessage(message); progressDialog.show(); } private void dismissDialog() { if (progressDialog == null) return; progressDialog.dismiss(); progressDialog = null; } public void onClick_getdata(View view) { List<Equipment_Device> equipment_devices = commonUtils.listAll(); getdata.setText(equipment_devices.get(0).getAddress()); } }