Java tutorial
/* * Copyright (C) 2009 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.nonstop.android.SoC.BluetoothChat; import java.io.IOException; import org.json.JSONException; import org.json.JSONObject; import android.annotation.SuppressLint; import android.app.Activity; import android.app.ProgressDialog; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.view.inputmethod.EditorInfo; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.EditText; import android.widget.ImageView; import android.widget.ListView; import android.widget.RadioGroup; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; import android.widget.ToggleButton; import com.facebook.android.AsyncFacebookRunner; import com.facebook.android.Facebook; import com.facebook.android.FacebookError; import com.nonstop.android.SoC.R; import com.nonstop.android.SoC.Util; import com.nonstop.android.SoC.Data.GlasOData.Alarm; import com.nonstop.android.SoC.Data.GlasOData.Direction; import com.nonstop.android.SoC.Data.GlasOData.Exceed; import com.nonstop.android.SoC.Data.GlasOData.OnTime; import com.nonstop.android.SoC.Data.GlasOData.Status; import com.nonstop.android.SoC.Facebook.BaseRequestListener; import com.nonstop.android.SoC.Facebook.LoginButton; import com.nonstop.android.SoC.Facebook.SessionEvents; import com.nonstop.android.SoC.Facebook.SessionStore; import com.nonstop.android.SoC.Facebook.UploadPhotoResultDialog; import com.nonstop.android.SoC.Facebook.Utility; import com.nonstop.android.SoC.Facebook.SessionEvents.AuthListener; import com.nonstop.android.SoC.Facebook.SessionEvents.LogoutListener; /** * This is the main Activity that displays the current chat session. */ @SuppressWarnings("deprecation") public class BluetoothChat extends Activity { // Debugging private static final String TAG = "BluetoothChat"; private static final boolean D = true; public static final String APP_ID = "157111564357680"; private LoginButton mLoginButton; private TextView mText; private ImageView mUserPic; private Handler mHandler_facebook; ProgressDialog dialog; //TODO: //private char[] photo_data_= new char[100*100]; //private Bitmap photo_converted; final static int AUTHORIZE_ACTIVITY_RESULT_CODE = 9; final static int PICK_EXISTING_PHOTO_RESULT_CODE = 8; String[] permissions = { "offline_access", "publish_stream", "user_photos", "publish_checkins", "photo_upload" }; // Message types sent from the BluetoothChatService Handler public static final int MESSAGE_STATE_CHANGE = 1; public static final int MESSAGE_READ = 2; public static final int MESSAGE_WRITE = 3; public static final int MESSAGE_DEVICE_NAME = 4; public static final int MESSAGE_TOAST = 5; // Key names received from the BluetoothChatService Handler public static final String DEVICE_NAME = "device_name"; public static final String TOAST = "toast"; // Intent request codes private static final int REQUEST_CONNECT_DEVICE_SECURE = 1; private static final int REQUEST_CONNECT_DEVICE_INSECURE = 2; private static final int REQUEST_ENABLE_BT = 3; // Layout Views private TextView mTitle; private ListView mConversationView; private EditText mOutEditText; private Button mSendButton; private Button mTurnLeftButton; private Button mTurnRightButton; private Button mNormalButton; private Button mPhotoButton; private Button mNoAlarmButton; private Button mAroundAlarmButton; private Button mOnAlarmButton; private Button mOnTimeButton; private RadioGroup mRadioGroup; private CheckBox mStatusCheckBox; private ToggleButton mNaviToggle; private ToggleButton mHeartbeatToggle; private SeekBar mHeartbeat; private ToggleButton mSpeedToggle; private SeekBar mSpeed; private ToggleButton mDistanceToggle; private SeekBar mDiatance; // Name of the connected device private String mConnectedDeviceName = null; // Array adapter for the conversation thread private ArrayAdapter<String> mConversationArrayAdapter; // String buffer for outgoing messages private StringBuffer mOutStringBuffer; // Local Bluetooth adapter private BluetoothAdapter mBluetoothAdapter = null; // Member object for the chat services private BluetoothChatService mChatService = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (D) Log.e(TAG, "+++ ON CREATE +++"); // Set up the window layout requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); setContentView(R.layout.bluetooth_chat); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title); // Set up the custom title mTitle = (TextView) findViewById(R.id.title_left_text); mTitle.setText(R.string.app_name); mTitle = (TextView) findViewById(R.id.title_right_text); // Get local Bluetooth adapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); // If the adapter is null, then Bluetooth is not supported if (mBluetoothAdapter == null) { Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show(); finish(); return; } if (APP_ID == null) { com.facebook.android.Util.showAlert(this, "Warning", "Facebook Applicaton ID must be " + "specified before running this example: see FbAPIs.java"); return; } // setContentView(R.layout.main); mHandler_facebook = new Handler(); mText = (TextView) this.findViewById(R.id.txt); mUserPic = (ImageView) this.findViewById(R.id.user_pic); // Create the Facebook Object using the app id. Utility.mFacebook = new Facebook(APP_ID); // Instantiate the asynrunner object for asynchronous api calls. Utility.mAsyncRunner = new AsyncFacebookRunner(Utility.mFacebook); mLoginButton = (LoginButton) findViewById(R.id.login); // restore session if one exists SessionStore.restore(Utility.mFacebook, this); SessionEvents.addAuthListener(new FbAPIsAuthListener()); SessionEvents.addLogoutListener(new FbAPIsLogoutListener()); /* * Source Tag: login_tag */ mLoginButton.init(this, AUTHORIZE_ACTIVITY_RESULT_CODE, Utility.mFacebook, permissions); if (Utility.mFacebook.isSessionValid()) { requestUserData(); } } @Override public void onStart() { super.onStart(); if (D) Log.e(TAG, "++ ON START ++"); // If BT is not on, request that it be enabled. // setupChat() will then be called during onActivityResult if (!mBluetoothAdapter.isEnabled()) { Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableIntent, REQUEST_ENABLE_BT); // Otherwise, setup the chat session } else { if (mChatService == null) setupChat(); } } @Override public synchronized void onResume() { super.onResume(); if (D) Log.e(TAG, "+ ON RESUME +"); // Performing this check in onResume() covers the case in which BT was // not enabled during onStart(), so we were paused to enable it... // onResume() will be called when ACTION_REQUEST_ENABLE activity // returns. if (mChatService != null) { // Only if the state is STATE_NONE, do we know that we haven't // started already if (mChatService.getState() == BluetoothChatService.STATE_NONE) { // Start the Bluetooth chat services mChatService.start(); } } if (Utility.mFacebook != null) { if (!Utility.mFacebook.isSessionValid()) { mText.setText("You are logged out! "); mUserPic.setImageBitmap(null); } else { Utility.mFacebook.extendAccessTokenIfNeeded(this, null); } } } private void setupChat() { Log.d(TAG, "setupChat()"); // Initialize the array adapter for the conversation thread mConversationArrayAdapter = new ArrayAdapter<String>(this, R.layout.message); mConversationView = (ListView) findViewById(R.id.in); mConversationView.setAdapter(mConversationArrayAdapter); // Initialize the compose field with a listener for the return key mOutEditText = (EditText) findViewById(R.id.edit_text_out); mOutEditText.setOnEditorActionListener(mWriteListener); // Initialize the send button with a listener that for click events mSendButton = (Button) findViewById(R.id.button_send); mSendButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { // Send a message using content of the edit text widget TextView view = (TextView) findViewById(R.id.edit_text_out); String message = view.getText().toString(); sendMessage(message); } }); mTurnLeftButton = (Button) findViewById(R.id.button_turnleft); mTurnLeftButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setDirection(Direction.LEFT); sendMessage(mChatService.mGlasOData.makePacket()); } }); mTurnRightButton = (Button) findViewById(R.id.button_turnright); mTurnRightButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setDirection(Direction.RIGHT); sendMessage(mChatService.mGlasOData.makePacket()); } }); mNormalButton = (Button) findViewById(R.id.button_normal); mNormalButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setDirection(Direction.NORMAL); sendMessage(mChatService.mGlasOData.makePacket()); } }); mNoAlarmButton = (Button) findViewById(R.id.button_no_alarm); mNoAlarmButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setAlarm_(Alarm.NOUSE); sendMessage(mChatService.mGlasOData.makePacket()); } }); mAroundAlarmButton = (Button) findViewById(R.id.button_around_alarm); mAroundAlarmButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setAlarm_(Alarm.AROUND); sendMessage(mChatService.mGlasOData.makePacket()); } }); mOnAlarmButton = (Button) findViewById(R.id.button_on_alarm); mOnAlarmButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setAlarm_(Alarm.ONTIME); sendMessage(mChatService.mGlasOData.makePacket()); } }); mOnTimeButton = (Button) findViewById(R.id.button_ontime); mOnTimeButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mChatService.mGlasOData.setOnTime(OnTime.ON); sendMessage(mChatService.mGlasOData.makePacket()); mChatService.mGlasOData.setOnTime(OnTime.OFF); } }); mPhotoButton = (Button) findViewById(R.id.button_photo); mPhotoButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { if (!Utility.mFacebook.isSessionValid()) { // Util.showAlert(this, "Warning", // "You must first log in."); } else { /* * Source tag: upload_photo_tag */ dialog = ProgressDialog.show(BluetoothChat.this, "", getString(R.string.please_wait), true, true); Bundle params = new Bundle(); params.putString("url", "http://www.facebook.com/images/devsite/iphone_connect_btn.jpg"); params.putString("caption", "FbAPIs Sample App photo upload"); Utility.mAsyncRunner.request("me/photos", params, "POST", new PhotoUploadListener(), null); } } }); mRadioGroup = (RadioGroup) findViewById(R.id.radioGroup1); mRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { public void onCheckedChanged(RadioGroup arg0, int arg1) { if (arg1 == R.id.radio_exceed) { mChatService.mGlasOData.setExceed(Exceed.EXCEED); } else if (arg1 == R.id.radio_exceedhigh) { mChatService.mGlasOData.setExceed(Exceed.EXCEEDHIGH); } else if (arg1 == R.id.radio_normalspeed) { mChatService.mGlasOData.setExceed(Exceed.NORMALSPEED); } sendMessage(mChatService.mGlasOData.makePacket()); } }); mStatusCheckBox = (CheckBox) findViewById(R.id.checkBox_status); mStatusCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { mChatService.mGlasOData.setStatus(Status.WRONG); } else { mChatService.mGlasOData.setStatus(Status.NORMAL); } } }); mNaviToggle = (ToggleButton) findViewById(R.id.toggle_navi); mNaviToggle.setOnCheckedChangeListener(new ToggleButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { if (D) Log.e(TAG, "++ NAVI ON ++"); mChatService.navi_stat_ = 1; } else { if (D) Log.e(TAG, "++ NAVI OFF ++"); mChatService.navi_stat_ = 0; } } }); mHeartbeatToggle = (ToggleButton) findViewById(R.id.toggle_Heartbeat); mHeartbeatToggle.setOnCheckedChangeListener(new ToggleButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { if (D) Log.e(TAG, "++ HEARTBEAT ON ++"); mChatService.heartbeat_stat_ = 1; } else { if (D) Log.e(TAG, "++ HEARTBEAT OFF ++"); mChatService.heartbeat_stat_ = 0; } if (mChatService.heartbeat_stat_ == 0 && mChatService.distance_stat_ == 0 && mChatService.speed_stat_ == 0) { mChatService.sens_stat_ = 0; } else { mChatService.sens_stat_ = 1; } } }); mHeartbeat = (SeekBar) findViewById(R.id.seekBar_Heartbeat); mHeartbeat.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { mChatService.mGlasOData.setHeartbeat_(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); mSpeedToggle = (ToggleButton) findViewById(R.id.toggle_Velocity); mSpeedToggle.setOnCheckedChangeListener(new ToggleButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { if (D) Log.e(TAG, "++ SpeedSens ON ++"); mChatService.speed_stat_ = 1; } else { if (D) Log.e(TAG, "++ SpeedSens OFF ++"); mChatService.speed_stat_ = 0; } if (mChatService.heartbeat_stat_ == 0 && mChatService.distance_stat_ == 0 && mChatService.speed_stat_ == 0) { mChatService.sens_stat_ = 0; } else { mChatService.sens_stat_ = 1; } } }); mSpeed = (SeekBar) findViewById(R.id.seekBar_Velocity); mSpeed.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { mChatService.mGlasOData.setVelocity_(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); mDistanceToggle = (ToggleButton) findViewById(R.id.toggle_Distance); mDistanceToggle.setOnCheckedChangeListener(new ToggleButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { if (D) Log.e(TAG, "++ Distance ON ++"); mChatService.distance_stat_ = 1; } else { if (D) Log.e(TAG, "++ Distance OFF ++"); mChatService.distance_stat_ = 0; } if (mChatService.heartbeat_stat_ == 0 && mChatService.distance_stat_ == 0 && mChatService.speed_stat_ == 0) { mChatService.sens_stat_ = 0; } else { mChatService.sens_stat_ = 1; } } }); mDiatance = (SeekBar) findViewById(R.id.seekBar_Distance); mDiatance.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { mChatService.mGlasOData.setDistance_(progress); } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } }); // Initialize the BluetoothChatService to perform bluetooth connections mChatService = new BluetoothChatService(this, mHandler); // Initialize the buffer for outgoing messages mOutStringBuffer = new StringBuffer(""); } @Override public synchronized void onPause() { super.onPause(); if (D) Log.e(TAG, "- ON PAUSE -"); } @Override public void onStop() { super.onStop(); if (D) Log.e(TAG, "-- ON STOP --"); } @Override public void onDestroy() { super.onDestroy(); // Stop the Bluetooth chat services if (mChatService != null) mChatService.stop(); if (D) Log.e(TAG, "--- ON DESTROY ---"); } private void ensureDiscoverable() { if (D) Log.d(TAG, "ensure discoverable"); if (mBluetoothAdapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) { Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); startActivity(discoverableIntent); } } /** * Sends a message. * * @param message * A string of text to send. */ private void sendMessage(String message) { // Check that we're actually connected before trying anything if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) { Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show(); return; } // Check that there's actually something to send if (message.length() > 0) { // Get the message bytes and tell the BluetoothChatService to write byte[] send = message.getBytes(); mChatService.write(send); // Reset out string buffer to zero and clear the edit text field mOutStringBuffer.setLength(0); mOutEditText.setText(mOutStringBuffer); } } // The action listener for the EditText widget, to listen for the return key private TextView.OnEditorActionListener mWriteListener = new TextView.OnEditorActionListener() { public boolean onEditorAction(TextView view, int actionId, KeyEvent event) { // If the action is a key-up event on the return key, send the // message if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) { String message = view.getText().toString(); sendMessage(message); } if (D) Log.i(TAG, "END onEditorAction"); return true; } }; // The Handler that gets information back from the BluetoothChatService @SuppressLint("HandlerLeak") private final Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case MESSAGE_STATE_CHANGE: if (D) Log.i(TAG, "MESSAGE_STATE_CHANGE: " + msg.arg1); switch (msg.arg1) { case BluetoothChatService.STATE_CONNECTED: mTitle.setText(R.string.title_connected_to); mTitle.append(mConnectedDeviceName); mConversationArrayAdapter.clear(); break; case BluetoothChatService.STATE_CONNECTING: mTitle.setText(R.string.title_connecting); break; case BluetoothChatService.STATE_LISTEN: case BluetoothChatService.STATE_NONE: mTitle.setText(R.string.title_not_connected); break; } break; case MESSAGE_WRITE: byte[] writeBuf = (byte[]) msg.obj; // construct a string from the buffer String writeMessage = new String(writeBuf); mConversationArrayAdapter.add("Me: " + Util.encodeStringToHex(writeMessage)); break; case MESSAGE_READ: byte[] readBuf = (byte[]) msg.obj; // construct a string from the valid bytes in the buffer String readMessage = new String(readBuf, 0, msg.arg1); mConversationArrayAdapter.add(mConnectedDeviceName + ": " + Util.encodeStringToHex(readMessage)); //TODO: ?? ? break; case MESSAGE_DEVICE_NAME: // save the connected device's name mConnectedDeviceName = msg.getData().getString(DEVICE_NAME); Toast.makeText(getApplicationContext(), "Connected to " + mConnectedDeviceName, Toast.LENGTH_SHORT) .show(); break; case MESSAGE_TOAST: Toast.makeText(getApplicationContext(), msg.getData().getString(TOAST), Toast.LENGTH_SHORT).show(); break; } } }; public void onActivityResult(int requestCode, int resultCode, Intent data) { if (D) Log.d(TAG, "onActivityResult " + resultCode); switch (requestCode) { case REQUEST_CONNECT_DEVICE_SECURE: // When DeviceListActivity returns with a device to connect if (resultCode == Activity.RESULT_OK) { connectDevice(data, true); } break; case REQUEST_CONNECT_DEVICE_INSECURE: // When DeviceListActivity returns with a device to connect if (resultCode == Activity.RESULT_OK) { connectDevice(data, false); } break; case REQUEST_ENABLE_BT: // When the request to enable Bluetooth returns if (resultCode == Activity.RESULT_OK) { // Bluetooth is now enabled, so set up a chat session setupChat(); } else { // User did not enable Bluetooth or an error occured Log.d(TAG, "BT not enabled"); Toast.makeText(this, R.string.bt_not_enabled_leaving, Toast.LENGTH_SHORT).show(); finish(); } /* * if this is the activity result from authorization flow, do a call * back to authorizeCallback Source Tag: login_tag */ case AUTHORIZE_ACTIVITY_RESULT_CODE: { Utility.mFacebook.authorizeCallback(requestCode, resultCode, data); break; } /* * if this is the result for a photo picker from the gallery, upload the * image after scaling it. You can use the Utility.scaleImage() function * for scaling */ case PICK_EXISTING_PHOTO_RESULT_CODE: { if (resultCode == Activity.RESULT_OK) { Uri photoUri = data.getData(); if (photoUri != null) { Bundle params = new Bundle(); try { params.putByteArray("photo", Utility.scaleImage(getApplicationContext(), photoUri)); } catch (IOException e) { e.printStackTrace(); } params.putString("caption", "NonstopSoC"); Utility.mAsyncRunner.request("me/photos", params, "POST", new PhotoUploadListener(), null); } else { Toast.makeText(getApplicationContext(), "Error selecting image from the gallery.", Toast.LENGTH_SHORT).show(); } } else { Toast.makeText(getApplicationContext(), "No image selected for upload.", Toast.LENGTH_SHORT).show(); } break; } } } /* * callback for the photo upload */ public class PhotoUploadListener extends BaseRequestListener { @Override public void onComplete(final String response, final Object state) { dialog.dismiss(); mHandler_facebook.post(new Runnable() { @Override public void run() { new UploadPhotoResultDialog(BluetoothChat.this, "Upload Photo executed", response).show(); } }); } public void onFacebookError(FacebookError error) { dialog.dismiss(); Toast.makeText(getApplicationContext(), "Facebook Error: " + error.getMessage(), Toast.LENGTH_LONG) .show(); } } /* * Callback for fetching current user's name, picture, uid. */ public class UserRequestListener extends BaseRequestListener { @Override public void onComplete(final String response, final Object state) { JSONObject jsonObject; try { jsonObject = new JSONObject(response); final String picURL = jsonObject.getJSONObject("picture").getJSONObject("data").getString("url"); final String name = jsonObject.getString("name"); Utility.userUID = jsonObject.getString("id"); mHandler_facebook.post(new Runnable() { @Override public void run() { mText.setText("Welcome " + name + "!"); mUserPic.setImageBitmap(Utility.getBitmap(picURL)); } }); } catch (JSONException e) { e.printStackTrace(); } } } /* * The Callback for notifying the application when authorization succeeds or * fails. */ public class FbAPIsAuthListener implements AuthListener { @Override public void onAuthSucceed() { requestUserData(); } @Override public void onAuthFail(String error) { mText.setText("Login Failed: " + error); } } /* * The Callback for notifying the application when log out starts and * finishes. */ public class FbAPIsLogoutListener implements LogoutListener { @Override public void onLogoutBegin() { mText.setText("Logging out..."); } @Override public void onLogoutFinish() { mText.setText("You have logged out! "); mUserPic.setImageBitmap(null); } } /* * Request user name, and picture to show on the main screen. */ public void requestUserData() { mText.setText("Fetching user name, profile pic..."); Bundle params = new Bundle(); params.putString("fields", "name, picture"); Utility.mAsyncRunner.request("me", params, new UserRequestListener()); } class ViewHolder { TextView main_list_item; } private void connectDevice(Intent data, boolean secure) { // Get the device MAC address String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS); // Get the BLuetoothDevice object BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address); // Attempt to connect to the device mChatService.connect(device, secure); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.option_menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { Intent serverIntent = null; if (item.getItemId() == R.id.secure_connect_scan) { // Launch the DeviceListActivity to see devices and do scan serverIntent = new Intent(this, DeviceListActivity.class); startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE_SECURE); return true; } else if (item.getItemId() == R.id.discoverable) { // Ensure this device is discoverable by others ensureDiscoverable(); return true; } return false; } }