【CSRMesh2.1蓝牙开发】-Android demo介绍【二】之代码分析

怎么介绍呢，一直考虑，还是从业务流程开始，1、Meshservice初始化--》2、扫描设备---》3、连接设备--》4、扫描设备--》5、设备组网

这样分析多初学者，或者刚接触CSRdemo的比较容易！

1、从MainActivity开始，第一步是在onCreate里面初始化蓝牙mesh的入口

AndroidManifest配置文件中有一下代码，不然启动MeshService失败。

<service
    android:name="com.csr.csrmesh2.MeshService"
    android:enabled="true"
    android:exported="false" >
</service>

MeshLibraryManager.initInstance(getApplicationContext(), MeshLibraryManager.MeshChannel.BLUETOOTH,LogLevel.DEBUG);

2、在MeshLibraryManager中进行创建service连接

private MeshLibraryManager(Context context, MeshChannel channel,LogLevel lgLevel) {Log.e(TAG,"2==init===MeshLibraryManager()");// Log message has a tag and a priority associated with it.
    logLevel= lgLevel;App.bus.register(this);mContext = new WeakReference<Context>(context);mCurrentChannel = channel;Intent bindIntent = new Intent(mContext.get(), MeshService.class);context.bindService(bindIntent, mServiceConnection, Context.BIND_AUTO_CREATE);
}

3、启动蓝牙，扫描蓝牙设备进行连接，重点是setBluetoothBeareEnabled接口

//激活蓝牙
private void enableBluetooth() {Log.e(TAG,"4==enable===enableBluetooth()");mCurrentChannel = MeshChannel.BLUETOOTH;isChannelReady = false;//广播“通道没有准备好”
    App.bus.post(new MeshSystemEvent(MeshSystemEvent.SystemEvent.CHANNEL_NOT_READY));mBtBearer = new BluetoothBearer(this, mContext.get());//启动蓝牙承载*****
    mService.setBluetoothBearerEnabled(mBtBearer);//设置这个开始扫描蓝牙设备
}
在MeshLibraryManager中有一个MeshApiMessageHandler内部做消息处理，个人感觉有路由意思在里面meshService
都是通过这个handler消息反馈出来，还有一个BluetootHandler这个也是消息处理，后面重点结束这二个handler的关系

4、这个时候蓝牙设备已经连接上了，可以进行组网了

在demo中是这样MeshLibraryManager.getInstance().getMeshService().setDeviceDiscoveryFilterEnabled(true)
在meshService中的传入handler上报蓝牙设备数据

case DEVICE_UUID: {ParcelUuid uuid = event.data.getParcelable(MeshConstants.EXTRA_UUID);int uuidHash = event.data.getInt(MeshConstants.EXTRA_UUIDHASH_31);int rssi = event.data.getInt(MeshConstants.EXTRA_RSSI);int ttl = event.data.getInt(MeshConstants.EXTRA_TTL);boolean existing = false;for (ScanDevice info : mDiscoveredDevices) {if (uuid != null && info.uuid.equalsIgnoreCase(uuid.toString())) {info.rssi = rssi;info.ttl = ttl;// check if we already have appearance info according with the uuidHash
            if (mAppearances.containsKey(uuidHash)) {info.setAppearance(mAppearances.get(uuidHash));}info.updated();updateList();existing = true;break;}}if (!existing) {ScanDevice info = new ScanDevice(uuid.toString().toUpperCase(), rssi, uuidHash, ttl);// check if we already have appearance info according with the uuidHash
        if (mAppearances.containsKey(uuidHash)) {info.setAppearance(mAppearances.get(uuidHash));}mDiscoveredDevices.add(info);updateList();}break;
}
case DEVICE_APPEARANCE: {byte[] appearance = event.data.getByteArray(MeshConstants.EXTRA_APPEARANCE);String shortName = event.data.getString(MeshConstants.EXTRA_SHORTNAME);int uuidHash = event.data.getInt(MeshConstants.EXTRA_UUIDHASH_31);for (ScanDevice info : mDiscoveredDevices) {if (info.uuidHash == uuidHash) {info.setAppearance(new AppearanceDevice(appearance, shortName));info.updated();}}mAppearances.put(uuidHash, new AppearanceDevice(appearance, shortName));Log.d(TAG, "* Association Event DEVICE_APPEARANCE - mAppearances: " + mAppearances.toString());updateList();break;
}

5、有蓝牙设备进行授权组网

MeshLibraryManager.getInstance().getMeshService().associateDevice(deviceHash,authcode,isauthocode,deviceId)

A、蓝牙设备授权进度

case ASSOCIATION_PROGRESS: {int progress = event.data.getInt(MeshConstants.EXTRA_PROGRESS_INFORMATION);if (!event.data.getBoolean(MeshConstants.EXTRA_CAN_BE_CANCELLED)) {runOnUiThread(new Runnable() {@Override
            public void run() {if (mDialog != null) {mDialog.getButtonCancel().setEnabled(false);}}});}updateProgress(getPercentageOf(progress, ASSOCIATION_COMPLETE_PERCENT));break;
}B、授权组网成功

case DEVICE_ASSOCIATED: {/* Once association is completed we are approximately half way through the process.
       We still need to query lots of info from the device using MCP.
       The remaining 100 - ASSOCIATION_COMPLETE_PERCENT of the progress is used for that.*/
    updateProgress(ASSOCIATION_COMPLETE_PERCENT);int deviceId = event.data.getInt(MeshConstants.EXTRA_DEVICE_ID);int uuidHash = event.data.getInt(MeshConstants.EXTRA_UUIDHASH_31);byte[] dhmKey = event.data.getByteArray(MeshConstants.EXTRA_RESET_KEY);mTempDevice = new UnknownDevice();mTempDevice.setDeviceID(deviceId);mTempDevice.setDeviceHash(uuidHash);mTempDevice.setDmKey(dhmKey);mTempDevice.setPlaceID(Utils.getLatestPlaceIdUsed(this));mTempDevice.setAssociated(true);AppearanceDevice appearanceDevice = mAppearances.get(uuidHash);/* Set to 2 as we always have to query model low and high. We may or may not need appearance and
       the number of models to query for groups is variable.*/
    mNumPostAssociationSteps = 2;mPostAssociationStep = 0;if (appearanceDevice != null) {mTempDevice.setName(appearanceDevice.getShortName().trim() + " " + (deviceId - Constants.MIN_DEVICE_ID));mTempDevice.setAppearance(appearanceDevice.getAppearanceType());// Request model low from the device.
        mCurrentRequestState = DeviceInfo.MODEL_LOW;ConfigModel.getInfo(mTempDevice.getDeviceID(), DeviceInfo.MODEL_LOW);}else {// An extra step as we don't have the appearance yet.
        mNumPostAssociationSteps++;mTempDevice.setName(getString(R.string.unknown) + " " + (deviceId - Constants.MIN_DEVICE_ID));// Request appearance from the device.
        mCurrentRequestState = DeviceInfo.APPEARANCE;ConfigModel.getInfo(mTempDevice.getDeviceID(), DeviceInfo.APPEARANCE);}mTempDevice = mDeviceManager.createOrUpdateDevice(mTempDevice, true);break;
}

以上代码根据csrdemo2.1中copy，其实原理和1.3版本是一样的，那为什么看到代码发现比较复杂呢，

个人分析原型有二点，第一点：demo除了灯控模块还有集成了灯具、分组、情景、网关、云、sensor等模块，demo还增加了palce和area概念。

如有不足之处，希望各位大牛指正。对想了解这套系统的同行，希望对你们有帮助。

QQ：172620790 一起沟通交流

如果需要了解后期内容，请增加评论，我会继续加油！

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