Add example documentation for Bluetooth implementation

README.md

@@ -92,6 +92,55 @@ a = new Ayanda(this, null, null, new IWifiDirect() {
 
 a.wdDiscover();
 ```
+Sharing a file (bytes) using Bluetooth
+```java
+  a = new Ayanda(this, new IBluetooth() {
+            @Override
+            public void actionDiscoveryStarted(Intent intent) {}
+
+            @Override
+            public void actionDiscoveryFinished(Intent intent) {}
+
+            @Override
+            public void stateChanged(Intent intent) {}
+
+            @Override
+            public void scanModeChange(Intent intent) {}
+
+            @Override
+            public void actionFound(Intent intent) {
+                peersAdapter.clear();
+                peersAdapter.addAll(a.btGetDeviceNamesDiscovered());
+                devices = a.btGetDevices();
+            }
+
+            @Override
+            public void dataRead(byte[] bytes, int length) {
+                String readMessage = new String(bytes, 0, length);
+                Toast.makeText(BluetoothActivity.this, readMessage, Toast.LENGTH_LONG)
+                        .show();
+            }
+
+            // Send "Hello World" after connecting to a device
+            @Override
+            public void connected(BluetoothDevice device) {
+                String message = "Hello World";
+                try {
+                    a.btSendData(device, message.getBytes()); // maybe a class for a device that's connected
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }, null, null);
+        // Discover nearby Bluetooth devices paired or not
+        a.btDiscover();
+        // Connect to device from list
+        @Override
+        public void onItemClick(AdapterView<?> adapterView, View view, int pos, long l) {
+            BluetoothDevice device = devices.get(peerNames.get(pos));
+            a.btConnect(device); // will trigger "connected" event
+        }
+```
 See Example App in the app folder for more implementation details.
 
 

app/src/main/java/sample/BluetoothActivity.java

@@ -130,7 +130,7 @@ public void onClick(View view) {
             @Override
             public void onItemClick(AdapterView<?> adapterView, View view, int pos, long l) {
                 BluetoothDevice device = devices.get(peerNames.get(pos));
-                 a.btConnect(device);
+                a.btConnect(device);
             }
         };