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POAndroid Bluetooth Connection Secure Insecure
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  1. POAndroid Bluetooth Connection Secure Insecure
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    copied!<p>I have been playing around with the bluetooth API for Android 2.2 (API level 8, HTC Desire) and had an app connecting to an embedded Bluetooth device using:</p> <pre><code>device.createRfcommSocketToServiceRecord(DEV_UUID); </code></pre> <p>This generated a pairing request as expected, however to streamline the connection process I wanted to avoid the user interaction when pairing so moved to API level 10 (HTC Desire with CyanogenMod 7) so I could use:</p> <pre><code> device.createInsecureRfcommSocketToServiceRecord(DEV_UUID); </code></pre> <p>When testing this also works as expected (connecting without prompting the user to pair), however when I try to create the secure RfcommSocket under API level 10 as before with 2.2 I get a connection refused exception...</p> <pre><code> java.io.IOException: Connection refused at android.bluetooth.BluetoothSocket.connectNative(Native Method) at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:204) </code></pre> <p>As far as I can tell this should still work in the same way, prompting the user to pair?</p> <p>EDIT: </p> <p>Just tried again using the following code and the outcome is the same (working for insecure but not for secure), I will try and get my hands on a stock 2.3 device to test on. </p> <pre><code> try { Method m = dev.getClass().getMethod("createInsecureRfcommSocketToServiceRecord", new Class[] { UUID.class } ); BluetoothSocket bs = (BluetoothSocket)m.invoke(dev, devUUID); Log.d("TEST", "Method Invoked"); bs.connect(); Log.d("TEST", "Connected to socket"); bs.close(); Log.d("TEST", "Closed Socket"); } </code></pre>
 

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