无法使用 Android BluetoothProfile 连接到蓝牙健康设备论坛 [英] Unable to connect to bluetooth Health Device Fora using Android BluetoothProfile

问题描述

我想通过 Android BluetoothPROfile 连接到 Fora 温度计并获取读数.以下是我的方法:-

I want to connect to Fora thermometer via Android BluetoothPRofile and get the reading. Following is my approoach :-

1. 在 OnCreate() 中，我编写了这段代码:-

1. In OnCreate() i have written this piece of code :-

if (!mBluetoothAdapter.getProfileProxy(this, mBluetoothServiceListener,
        BluetoothProfile.HEALTH)) {
    Toast.makeText(this, "No Health Profile Supported",
            Toast.LENGTH_LONG);
    return;
}

这会触发下面提到的 mBluetoothServiceListener 回调:-

This triggers the mBluetoothServiceListener callback which is mentioned below :-

@SuppressLint("NewApi")
private final BluetoothProfile.ServiceListener mBluetoothServiceListener =
new BluetoothProfile.ServiceListener() {
public void onServiceConnected(int profile, BluetoothProfile proxy) {

    Log.d(TAG, "onServiceConnected to profile: " + profile + " while health is " + BluetoothProfile.HEALTH);
    if (profile == BluetoothProfile.HEALTH) {
        mBluetoothHealth = (BluetoothHealth) proxy;
        if (Log.isLoggable(TAG, Log.DEBUG))
            Log.d(TAG, "onServiceConnected to profile: " + profile);
    }
    else if(profile == BluetoothProfile.HEADSET)
    {
        Log.d(TAG, "onServiceConnected to profile: " + profile);
    }
}

public void onServiceDisconnected(int profile) {
    if (profile == BluetoothProfile.HEALTH) {
        mBluetoothHealth = null;
    }
}
};

此后，代码会搜索附近的蓝牙设备并将其显示在列表中.该列表项的 onclicklistener 调用以下代码:-

After this the code searches for nearby bluetooth devices and shows it in the list. The onclicklistener of that list item calls the following code :-

boolean bool = mBluetoothHealth.registerSinkAppConfiguration(TAG, HEALTH_PROFILE_SOURCE_DATA_TYPE, mHealthCallback);

// where HEALTH_PROFILE_SOURCE_DATA_TYPE = 0x1008 (it's a body thermometer)

注册过程完成后，我尝试像这样连接设备:-

Once the registeration process is done i try to connect the device like this :-

    boolean bool = mBluetoothHealth.connectChannelToSource(mDevice, mHealthAppConfig);

完成上述所有步骤后，BluetoothHealthCallback 将在任何时候调用设备连接状态改变

Once all the above steps are done then the BluetoothHealthCallback is called whenever the device connection state changes

        private final BluetoothHealthCallback mHealthCallback = new BluetoothHealthCallback() {
// Callback to handle application registration and unregistration events.  The service
// passes the status back to the UI client.
public void onHealthAppConfigurationStatusChange(BluetoothHealthAppConfiguration config,
        int status) {
    if (status == BluetoothHealth.APP_CONFIG_REGISTRATION_FAILURE) {
        mHealthAppConfig = null;
    } else if (status == BluetoothHealth.APP_CONFIG_REGISTRATION_SUCCESS) {
        mHealthAppConfig = config;
    } else if (status == BluetoothHealth.APP_CONFIG_UNREGISTRATION_FAILURE ||
            status == BluetoothHealth.APP_CONFIG_UNREGISTRATION_SUCCESS) {
    }
}

// Callback to handle channel connection state changes.
// Note that the logic of the state machine may need to be modified based on the HDP device.
// When the HDP device is connected, the received file descriptor is passed to the
// ReadThread to read the content.
public void onHealthChannelStateChange(BluetoothHealthAppConfiguration config,
        BluetoothDevice device, int prevState, int newState, ParcelFileDescriptor fd,
        int channelId) {
    if (Log.isLoggable(TAG, Log.DEBUG))
        Log.d(TAG, String.format("prevState	%d ----------> newState	%d",
                prevState, newState));
    if (prevState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED &&
            newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {
        if (config.equals(mHealthAppConfig)) {
            mChannelId = channelId;

            (new ReadThread(fd)).start();
        } else {

        }
    } else if (prevState == BluetoothHealth.STATE_CHANNEL_CONNECTING &&
            newState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED) {

    } else if (newState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED) {
        if (config.equals(mHealthAppConfig)) {

        } else {

        }
    }
}
    };

在上述情况下，我准确地获得了 2 次 BluetoothHealthCallback :-

In the above case i get the BluetoothHealthCallback precisely 2 times :-

1. 我第一次得到 prevState = BluetoothHealth.STATE_CHANNEL_DISCONNECTED 和newState = BluetoothHealth.STATE_CHANNEL_CONNECTING

1. First Time i get the prevState = BluetoothHealth.STATE_CHANNEL_DISCONNECTED and newState = BluetoothHealth.STATE_CHANNEL_CONNECTING

在第二次我得到 prevState = BluetoothHealth.STATE_CHANNEL_CONNECTING 和newState = BluetoothHealth.STATE_CHANNEL_DISCONNECTED

While in Second time i get the prevState = BluetoothHealth.STATE_CHANNEL_CONNECTING and newState = BluetoothHealth.STATE_CHANNEL_DISCONNECTED

即已尝试连接到设备，但未成功.同样在两个回调中 ParcelFileDescriptor 为空

i.e. the attempt is made to connect to the device but it is not succesfull. Also in both the callbacks the ParcelFileDescriptor is null

*注意:设备已经配对

推荐答案

你觉得你下面的if"语句对吗?

Do you think yours below "if" statement is right?

if (prevState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED &&newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {

if (prevState == BluetoothHealth.STATE_CHANNEL_DISCONNECTED && newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {

它应该是(就像经典蓝牙设备发生的那样)

It should be either (as it happen for classic Bluetooth devices)

if (prevState == BluetoothHealth.STATE_CHANNEL_CONNECTING &&newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {

if (prevState == BluetoothHealth.STATE_CHANNEL_CONNECTING && newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {

因为你先连接然后连接

或者我可能只是

if (newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {

if (newState == BluetoothHealth.STATE_CHANNEL_CONNECTED) {

对其他if"语句进行同样的更正.

And same correction for other "if" statement.

还有，设备是否支持配对和连接选项?如果是，那么您可以尝试手动连接.

Also, Does device support paired and connected option? If yes then you may try to connect it manually.

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