Question

我想通过Android BluetoothPRofile连接到Fora温度计并获取阅读。以下是我的同意： -

在OnCreate（）中，我编写了这段代码： -

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

这会触发mBluetoothServiceListener回调，如下所述： -

@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在列表中显示。该列表项的onclicklistener调用以下代码： -

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，我尝试连接设备： -

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

完成上述所有步骤后，随时都会调用BluetoothHealthCallback 设备连接状态发生变化

        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\t%d ----------> newState\t%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 {

        }
    }
}
    };

在上面的例子中，我准确地获得了2次BluetoothHealthCallback： -

我第一次获得prevState = BluetoothHealth.STATE_CHANNEL_DISCONNECTED并且 newState = BluetoothHealth.STATE_CHANNEL_CONNECTING
在第二次我得到prevState = BluetoothHealth.STATE_CHANNEL_CONNECTING并且 newState = BluetoothHealth.STATE_CHANNEL_DISCONNECTED

即。尝试连接到设备，但它不是成功的。同样在两个回调中，ParcelFileDescriptor为空

*注意：设备已配对

Answer 1

你认为你的下面＆＃34;如果＆＃34;声明是对的吗？

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

它应该是（正如经典蓝牙设备那样）

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

首先连接然后连接

或者我可能只是

if（newState == BluetoothHealth.STATE_CHANNEL_CONNECTED）{

对其他＆＃34;同样的纠正＆＃34;如果＆＃34;言。

另外，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。

无法使用Android BluetoothProfile连接到蓝牙健康设备论坛

1 个答案: