Example usage for android.content Context POWER

Introduction

In this page you can find the example usage for android.content Context POWER_SERVICE.

Prototype

String POWER_SERVICE

To view the source code for android.content Context POWER_SERVICE.

Click Source Link

Document

Use with #getSystemService(String) to retrieve a android.os.PowerManager for controlling power management, including "wake locks," which let you keep the device on while you're running long tasks.

Usage

From source file:com.erhuoapp.erhuo.activity.ChatActivity.java

private void setUpView() {
    activityInstance = this;
    iv_emoticons_normal.setOnClickListener(this);
    iv_emoticons_checked.setOnClickListener(this);
    // position = getIntent().getIntExtra("position", -1);
    clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
    wakeLock = ((PowerManager) getSystemService(Context.POWER_SERVICE))
            .newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "demo");
    // ???/*from  www . j  a v a  2  s  .  c  om*/
    chatType = getIntent().getIntExtra("chatType", CHATTYPE_SINGLE);

    if (chatType == CHATTYPE_SINGLE) { // ??
        toChatUsername = getIntent().getStringExtra("userId");

        //         ????
        HeadAndName mHeadAndName = new HeadAndName(this);
        UserHeadAndName mUserHeadAndName = mHeadAndName.selectOne(toChatUsername);
        ((TextView) findViewById(R.id.name)).setText(mUserHeadAndName.getNick());
        // conversation =
        // EMChatManager.getInstance().getConversation(toChatUsername,false);
    } else {
        // ?
        findViewById(R.id.container_to_group).setVisibility(View.VISIBLE);
        findViewById(R.id.container_remove).setVisibility(View.GONE);
        findViewById(R.id.container_voice_call).setVisibility(View.GONE);
        findViewById(R.id.container_video_call).setVisibility(View.GONE);
        toChatUsername = getIntent().getStringExtra("groupId");
        group = EMGroupManager.getInstance().getGroup(toChatUsername);
        ((TextView) findViewById(R.id.name)).setText(group.getGroupName());
        // conversation =
        // EMChatManager.getInstance().getConversation(toChatUsername,true);
    }
    conversation = EMChatManager.getInstance().getConversation(toChatUsername);
    // ?0
    conversation.resetUnreadMsgCount();
    adapter = new MessageAdapter(this, toChatUsername, chatType);
    // ?
    listView.setAdapter(adapter);
    listView.setOnScrollListener(new ListScrollListener());
    int count = listView.getCount();
    if (count > 0) {
        listView.setSelection(count - 1);
    }

    listView.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            hideKeyboard();
            more.setVisibility(View.GONE);
            iv_emoticons_normal.setVisibility(View.VISIBLE);
            iv_emoticons_checked.setVisibility(View.INVISIBLE);
            emojiIconContainer.setVisibility(View.GONE);
            btnContainer.setVisibility(View.GONE);
            return false;
        }
    });
    // ?
    receiver = new NewMessageBroadcastReceiver();
    IntentFilter intentFilter = new IntentFilter(EMChatManager.getInstance().getNewMessageBroadcastAction());
    // Mainacitivity,??chat??????
    intentFilter.setPriority(5);
    registerReceiver(receiver, intentFilter);

    // ack?BroadcastReceiver
    IntentFilter ackMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getAckMessageBroadcastAction());
    ackMessageIntentFilter.setPriority(5);
    registerReceiver(ackMessageReceiver, ackMessageIntentFilter);

    // ??BroadcastReceiver
    IntentFilter deliveryAckMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getDeliveryAckMessageBroadcastAction());
    deliveryAckMessageIntentFilter.setPriority(5);
    registerReceiver(deliveryAckMessageReceiver, deliveryAckMessageIntentFilter);

    // ????T
    groupListener = new GroupListener();
    EMGroupManager.getInstance().addGroupChangeListener(groupListener);

    // show forward message if the message is not null
    String forward_msg_id = getIntent().getStringExtra("forward_msg_id");
    if (forward_msg_id != null) {
        // ?????
        forwardMessage(forward_msg_id);
    }

}

From source file:com.devalladolid.musictoday.MusicService.java

@Override
public void onCreate() {
    if (D)//from  w  w  w .jav a  2  s  . c o  m
        Log.d(TAG, "Creating service");
    super.onCreate();

    mNotificationManager = NotificationManagerCompat.from(this);

    // gets a pointer to the playback state store
    mPlaybackStateStore = MusicPlaybackState.getInstance(this);
    mSongPlayCount = SongPlayCount.getInstance(this);
    mRecentStore = RecentStore.getInstance(this);

    mHandlerThread = new HandlerThread("MusicPlayerHandler", android.os.Process.THREAD_PRIORITY_BACKGROUND);
    mHandlerThread.start();

    mPlayerHandler = new MusicPlayerHandler(this, mHandlerThread.getLooper());

    mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    mMediaButtonReceiverComponent = new ComponentName(getPackageName(),
            MediaButtonIntentReceiver.class.getName());
    mAudioManager.registerMediaButtonEventReceiver(mMediaButtonReceiverComponent);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
        setUpMediaSession();

    mPreferences = getSharedPreferences("Service", 0);
    mCardId = getCardId();

    registerExternalStorageListener();

    mPlayer = new MultiPlayer(this);
    mPlayer.setHandler(mPlayerHandler);

    // Initialize the intent filter and each action
    final IntentFilter filter = new IntentFilter();
    filter.addAction(SERVICECMD);
    filter.addAction(TOGGLEPAUSE_ACTION);
    filter.addAction(PAUSE_ACTION);
    filter.addAction(STOP_ACTION);
    filter.addAction(NEXT_ACTION);
    filter.addAction(PREVIOUS_ACTION);
    filter.addAction(PREVIOUS_FORCE_ACTION);
    filter.addAction(REPEAT_ACTION);
    filter.addAction(SHUFFLE_ACTION);
    // Attach the broadcast listener
    registerReceiver(mIntentReceiver, filter);

    mMediaStoreObserver = new MediaStoreObserver(mPlayerHandler);
    getContentResolver().registerContentObserver(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, true,
            mMediaStoreObserver);
    getContentResolver().registerContentObserver(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, true,
            mMediaStoreObserver);

    // Initialize the wake lock
    final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
    mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getClass().getName());
    mWakeLock.setReferenceCounted(false);

    final Intent shutdownIntent = new Intent(this, MusicService.class);
    shutdownIntent.setAction(SHUTDOWN);

    mAlarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    mShutdownIntent = PendingIntent.getService(this, 0, shutdownIntent, 0);

    scheduleDelayedShutdown();

    reloadQueueAfterPermissionCheck();
    notifyChange(QUEUE_CHANGED);
    notifyChange(META_CHANGED);
}

From source file:org.runnerup.gpstracker.GpsTracker.java

private void wakelock(boolean get) {
    if (mWakeLock != null) {
        if (mWakeLock.isHeld()) {
            mWakeLock.release();/*  ww  w .j av  a  2s  . com*/
        }
        mWakeLock = null;
    }
    if (get) {
        PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
        mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "RunnerUp");
        if (mWakeLock != null) {
            mWakeLock.acquire();
        }
    }
}

From source file:com.interestfriend.activity.ChatActivity.java

private void setUpView() {
    activityInstance = this;
    iv_emoticons_normal.setOnClickListener(this);
    iv_emoticons_checked.setOnClickListener(this);
    btnMore.setOnClickListener(this);
    // position = getIntent().getIntExtra("position", -1);
    clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
    wakeLock = ((PowerManager) getSystemService(Context.POWER_SERVICE))
            .newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "demo");
    // /*from  w  w w  .  j  a va2 s.  c o m*/
    chatType = getIntent().getIntExtra("chatType", CHATTYPE_SINGLE);
    txt_title.setText(user_name);
    conversation = EMChatManager.getInstance().getConversation(toChatUsername);
    // 0
    conversation.resetUnsetMsgCount();
    adapter = new ChatAdapter(this, toChatUsername, chatType, user_id);
    // 
    listView.setAdapter(adapter);
    listView.setOnScrollListener(new ListScrollListener());
    int count = listView.getCount();
    if (count > 0) {
        listView.setSelection(count - 1);
    }

    listView.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            hideKeyboard();
            more.setVisibility(View.GONE);
            iv_emoticons_normal.setVisibility(View.VISIBLE);
            iv_emoticons_checked.setVisibility(View.INVISIBLE);
            expressionContainer.setVisibility(View.GONE);
            btnContainer.setVisibility(View.GONE);
            return false;
        }
    });
    // 
    receiver = new NewMessageBroadcastReceiver();
    IntentFilter intentFilter = new IntentFilter(EMChatManager.getInstance().getNewMessageBroadcastAction());
    // Mainacitivity,chat
    intentFilter.setPriority(5);
    registerReceiver(receiver, intentFilter);

    // ackBroadcastReceiver
    IntentFilter ackMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getAckMessageBroadcastAction());
    ackMessageIntentFilter.setPriority(5);
    registerReceiver(ackMessageReceiver, ackMessageIntentFilter);

    // BroadcastReceiver
    IntentFilter deliveryAckMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getDeliveryAckMessageBroadcastAction());
    deliveryAckMessageIntentFilter.setPriority(5);
    registerReceiver(deliveryAckMessageReceiver, deliveryAckMessageIntentFilter);

    // T
    groupListener = new GroupListener();
    EMGroupManager.getInstance().addGroupChangeListener(groupListener);

    // show forward message if the message is not null
    String forward_msg_id = getIntent().getStringExtra("forward_msg_id");
    if (forward_msg_id != null) {
        // 
        forwardMessage(forward_msg_id);
    }

}

From source file:com.max2idea.android.limbo.main.LimboActivity.java

private void acquireLocks() {
    if (mWakeLock == null) {
        PowerManager pm = (PowerManager) activity.getSystemService(Context.POWER_SERVICE);
        mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, WAKELOCK_KEY);
        mWakeLock.setReferenceCounted(false);

    }/*w ww.j  ava  2 s  .  co m*/

    // Creates a new WifiLock by getting the WifiManager as a service.
    // This object creates a lock tagged "lock".
    if (wlock == null) {
        WifiManager wmanager = (WifiManager) activity.getSystemService(Context.WIFI_SERVICE);
        wlock = wmanager.createWifiLock("lock");
        wlock.setReferenceCounted(false);
    }
    if (!mWakeLock.isHeld()) {
        Log.v(TAG, "Acquire wake lock...");
        mWakeLock.acquire();
    }
    if (!wlock.isHeld()) {
        Log.v(TAG, "Acquire wifi lock...");
        wlock.acquire();
    }
}

From source file:com.nogago.android.tracks.services.TrackRecordingService.java

/**
 * Tries to acquire a partial wake lock if not already acquired. Logs errors
 * and gives up trying in case the wake lock cannot be acquired.
 *//*w  w  w  .  j a  v  a  2 s  .  c  o m*/
private void acquireWakeLock() {
    try {
        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
        if (pm == null) {
            Log.e(TAG, "TrackRecordingService: Power manager not found!");
            return;
        }
        if (wakeLock == null) {
            wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
            if (wakeLock == null) {
                Log.e(TAG, "TrackRecordingService: Could not create wake lock (null).");
                return;
            }
        }
        if (!wakeLock.isHeld()) {
            wakeLock.acquire();
            if (!wakeLock.isHeld()) {
                Log.e(TAG, "TrackRecordingService: Could not acquire wake lock.");
            }
        }
    } catch (RuntimeException e) {
        Log.e(TAG, "TrackRecordingService: Caught unexpected exception: " + e.getMessage(), e);
    }
}

From source file:com.hanyu.desheng.activity.ChatActivity.java

private void setUpView() {
    activityInstance = this;
    iv_emoticons_normal.setOnClickListener(this);
    iv_emoticons_checked.setOnClickListener(this);
    // position = getIntent().getIntExtra("position", -1);
    clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
    wakeLock = ((PowerManager) getSystemService(Context.POWER_SERVICE))
            .newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "demo");
    // ???/*from   www .j  a  v a2s. c om*/
    chatType = getIntent().getIntExtra("chatType", CHATTYPE_SINGLE);

    if (chatType == CHATTYPE_SINGLE) { // ??
        toChatUsername = getIntent().getStringExtra("userId");
        String username = getIntent().getStringExtra("username");
        if (username != null) {
            if (username.length() < 7) {
                ((TextView) findViewById(R.id.name)).setText(username);
            } else {
                ((TextView) findViewById(R.id.name)).setText(username.substring(0, 7) + "...");
            }
        } else {
            Gson gson = new Gson();
            List<String> userList = new ArrayList<String>();
            userList.add(toChatUsername);
            final String uns = gson.toJson(userList);
            new HttpTask<Void, Void, String>(ChatActivity.this) {

                // private AlertDialog errorDialog;

                @Override
                protected String doInBackground(Void... params) {
                    return EngineManager.getUserEngine().toGetHxUser(uns);
                }

                @Override
                protected void onPostExecute(String result) {
                    if (result != null) {
                        LogUtils.e(getClass(), "result:" + result);
                        ChatBean chatBean = GsonUtils.json2Bean(result, ChatBean.class);
                        if (chatBean != null && chatBean.code == 0) {
                            String username = chatBean.data.info_list.get(0).miname;
                            if (username.length() < 7) {
                                ((TextView) findViewById(R.id.name)).setText(username);
                            } else {
                                ((TextView) findViewById(R.id.name)).setText(username.substring(0, 7) + "...");
                            }
                        } else {

                        }
                    }
                }

                @Override
                protected void onPreExecute() {
                }

            }.executeProxy();
        }
        // conversation =
        // EMChatManager.getInstance().getConversation(toChatUsername,false);
    } else {
        // ?
        findViewById(R.id.container_to_group).setVisibility(View.VISIBLE);
        findViewById(R.id.container_remove).setVisibility(View.GONE);
        findViewById(R.id.container_voice_call).setVisibility(View.GONE);
        findViewById(R.id.container_video_call).setVisibility(View.GONE);
        toChatUsername = getIntent().getStringExtra("groupId");
        ISCANCHAT = GroupDao.getGroup(toChatUsername, ExampleApplication.getInstance().getUserName());
        if (!ISCANCHAT) {
            CountDown cd = new CountDown(5000, 1000);
            cd.start();
        }
        group = EMGroupManager.getInstance().getGroup(toChatUsername);

        new Thread() {
            public void run() {
                try {
                    String checkUserChat = EngineManager.getUserEngine().checkUserChat(
                            ExampleApplication.getInstance().getUserName(),
                            getIntent().getStringExtra("groupId"));
                    JSONObject jsonObject = new JSONObject(checkUserChat);
                    JSONObject jsonObject2 = jsonObject.getJSONObject("data");
                    String isSilence = jsonObject2.getString("is_silence");
                    if (isSilence.equals("1")) {
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                // ?
                                mEditTextContent.setHint("?");
                                mEditTextContent.setEnabled(false);
                                buttonPressToSpeak.setEnabled(false);

                            }
                        });

                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            };
        }.start();

        // ?
        registerBandListener();

        if (group != null) {
            if (group.getGroupName().length() < 7) {
                ((TextView) findViewById(R.id.name))
                        .setText(group.getGroupName() + "(" + group.getAffiliationsCount() + ")");
            } else {
                ((TextView) findViewById(R.id.name)).setText(
                        group.getGroupName().substring(0, 7) + "...(" + group.getAffiliationsCount() + ")");
            }
        } else
            ((TextView) findViewById(R.id.name)).setText(toChatUsername);
        // conversation =
        // EMChatManager.getInstance().getConversation(toChatUsername,true);
    }
    conversation = EMChatManager.getInstance().getConversation(toChatUsername);
    // ?0
    conversation.resetUnreadMsgCount();
    adapter = new MessageAdapter(this, toChatUsername, chatType);
    // ?
    listView.setAdapter(adapter);
    listView.setOnScrollListener(new ListScrollListener());
    int count = listView.getCount();
    if (count > 0) {
        listView.setSelection(count - 1);
    }

    listView.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            hideKeyboard();
            more.setVisibility(View.GONE);
            iv_emoticons_normal.setVisibility(View.VISIBLE);
            iv_emoticons_checked.setVisibility(View.INVISIBLE);
            emojiIconContainer.setVisibility(View.GONE);
            btnContainer.setVisibility(View.GONE);
            return false;
        }
    });
    //EMChatManager.getInstance().getChatOptions().setShowNotificationInBackgroud(false);
    // ?
    receiver = new NewMessageBroadcastReceiver();
    IntentFilter intentFilter = new IntentFilter(EMChatManager.getInstance().getNewMessageBroadcastAction());
    // Mainacitivity,??chat??????
    intentFilter.setPriority(5);
    registerReceiver(receiver, intentFilter);

    // ack?BroadcastReceiver
    IntentFilter ackMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getAckMessageBroadcastAction());
    ackMessageIntentFilter.setPriority(5);
    registerReceiver(ackMessageReceiver, ackMessageIntentFilter);

    // ??BroadcastReceiver
    IntentFilter deliveryAckMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getDeliveryAckMessageBroadcastAction());
    deliveryAckMessageIntentFilter.setPriority(5);
    registerReceiver(deliveryAckMessageReceiver, deliveryAckMessageIntentFilter);

    // ????T
    groupListener = new GroupListener();
    EMGroupManager.getInstance().addGroupChangeListener(groupListener);

    // show forward message if the message is not null
    String forward_msg_id = getIntent().getStringExtra("forward_msg_id");
    if (forward_msg_id != null) {
        // ?????
        forwardMessage(forward_msg_id);
    }

}

From source file:br.com.viniciuscr.notification2android.mediaPlayer.MediaPlaybackService.java

@Override
public void onCreate() {
    super.onCreate();

    mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    ComponentName rec = new ComponentName(getPackageName(), MediaButtonIntentReceiver.class.getName());
    mAudioManager.registerMediaButtonEventReceiver(rec);

    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.setComponent(rec);//from  www.j  a  v  a2  s .c o m
    PendingIntent pi = PendingIntent.getBroadcast(this /*context*/, 0 /*requestCode, ignored*/, i /*intent*/,
            0 /*flags*/);
    mRemoteControlClient = new RemoteControlClient(pi);
    mAudioManager.registerRemoteControlClient(mRemoteControlClient);

    int flags = RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS | RemoteControlClient.FLAG_KEY_MEDIA_NEXT
            | RemoteControlClient.FLAG_KEY_MEDIA_PLAY | RemoteControlClient.FLAG_KEY_MEDIA_PAUSE
            | RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE | RemoteControlClient.FLAG_KEY_MEDIA_STOP;
    mRemoteControlClient.setTransportControlFlags(flags);

    mPreferences = getSharedPreferences("Music", MODE_WORLD_READABLE | MODE_WORLD_WRITEABLE);
    mCardId = MusicUtils.getCardId(this);

    registerExternalStorageListener();

    // Needs to be done in this thread, since otherwise ApplicationContext.getPowerManager() crashes.
    mPlayer = new MultiPlayer();
    mPlayer.setHandler(mMediaplayerHandler);

    reloadQueue();
    notifyChange(QUEUE_CHANGED);
    notifyChange(META_CHANGED);

    IntentFilter commandFilter = new IntentFilter();
    commandFilter.addAction(SERVICECMD);
    commandFilter.addAction(TOGGLEPAUSE_ACTION);
    commandFilter.addAction(PAUSE_ACTION);
    commandFilter.addAction(NEXT_ACTION);
    commandFilter.addAction(PREVIOUS_ACTION);
    registerReceiver(mIntentReceiver, commandFilter);

    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, this.getClass().getName());
    mWakeLock.setReferenceCounted(false);

    // If the service was idle, but got killed before it stopped itself, the
    // system will relaunch it. Make sure it gets stopped again in that case.
    Message msg = mDelayedStopHandler.obtainMessage();
    mDelayedStopHandler.sendMessageDelayed(msg, IDLE_DELAY);
}

From source file:com.youti.chat.activity.ChatActivity.java

private void setUpView() {
    iv_emoticons_normal.setOnClickListener(this);
    iv_emoticons_checked.setOnClickListener(this);
    // position = getIntent().getIntExtra("position", -1);
    clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
    wakeLock = ((PowerManager) getSystemService(Context.POWER_SERVICE))
            .newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "demo");

    ((TextView) findViewById(R.id.name)).setText(toChatUserName);
    /*if (chatType == CHATTYPE_SINGLE) { // ??
               /*from ww w.j a  va 2  s .  com*/
    } else {
       // ?
       findViewById(R.id.container_to_group).setVisibility(View.VISIBLE);
       findViewById(R.id.container_remove).setVisibility(View.GONE);
       findViewById(R.id.container_voice_call).setVisibility(View.GONE);
       findViewById(R.id.container_video_call).setVisibility(View.GONE);
       toTel = getIntent().getStringExtra("groupId");
            
       if(chatType == CHATTYPE_GROUP){
     onGroupViewCreation();
       }else{ 
     onChatRoomViewCreation();
       }
    }*/

    // for chatroom type, we only init conversation and create view adapter on success
    if (chatType != CHATTYPE_CHATROOM) {
        onConversationInit();

        onListViewCreation();

        // show forward message if the message is not null
        String forward_msg_id = getIntent().getStringExtra("forward_msg_id");
        if (forward_msg_id != null) {
            // ?????
            forwardMessage(forward_msg_id);
        }
    }
}

From source file:com.fullteem.yueba.app.ui.ChatActivity.java

private void setUpView() {

    // popwindow//from www.j  a  va 2s.c  o m
    menuTexts = getResources().getStringArray(R.array.msgmenu);

    activityInstance = this;
    iv_emoticons_normal.setOnClickListener(this);
    iv_emoticons_checked.setOnClickListener(this);
    // position = getIntent().getIntExtra("position", -1);
    clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
    manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
    wakeLock = ((PowerManager) getSystemService(Context.POWER_SERVICE))
            .newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "demo");
    // ???
    chatType = getIntent().getIntExtra("chatType", CHATTYPE_SINGLE);

    if (chatType == CHATTYPE_SINGLE) { // ??
        // ??
        Map<String, User> users = appContext.getContactList();
        toChatUsername = getIntent().getStringExtra("userId");// bug bill.// should be// imServerId
        if (null == toChatUsername) {
            return;
        }
        userNickName = getIntent().getStringExtra("nickname");
        getUserTokenByAccount(toChatUsername);
        ImageUrl = getIntent().getStringExtra("imgurl");
        List<String> blackList = EMContactManager.getInstance().getBlackListUsernames();
        for (String key : users.keySet()) {
            // ??????
            if (null != toChatUsername && toChatUsername.equalsIgnoreCase(key)// debug to be
            // null!
                    && !blackList.contains(key)) {
                menuTexts = getResources().getStringArray(R.array.msgmenu_friend);
            }

        }
        ((TextView) findViewById(R.id.name)).setText(userNickName);
        // conversation =
        // EMChatManager.getInstance().getConversation(toChatUsername,false);
    } else {
        // ?
        // findViewById(R.id.container_to_group).setVisibility(View.VISIBLE);
        findViewById(R.id.container_remove).setVisibility(View.GONE);
        findViewById(R.id.container_voice_call).setVisibility(View.GONE);
        toChatUsername = getIntent().getStringExtra("groupId");
        System.out.println("toChatUsername" + toChatUsername);
        group = EMGroupManager.getInstance().getGroup(toChatUsername);
        menuTexts = getResources().getStringArray(R.array.msgmenu_group);
        if (group == null) {
            ((TextView) findViewById(R.id.name)).setText("");
        } else {
            ((TextView) findViewById(R.id.name)).setText(group.getGroupName());
        }
        // conversation =
        // EMChatManager.getInstance().getConversation(toChatUsername,true);
    }
    conversation = EMChatManager.getInstance().getConversation(toChatUsername);
    // ?0
    conversation.resetUnsetMsgCount();
    adapter = new MessageAdapter(this, toChatUsername, ImageUrl, chatType);
    // ?
    listView.setAdapter(adapter);
    listView.setOnScrollListener(new ListScrollListener());
    int count = listView.getCount();
    if (count > 0) {
        listView.setSelection(count - 1);
    }

    listView.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            hideKeyboard();
            more.setVisibility(View.GONE);
            iv_emoticons_normal.setVisibility(View.VISIBLE);
            iv_emoticons_checked.setVisibility(View.INVISIBLE);
            emojiIconContainer.setVisibility(View.GONE);
            btnContainer.setVisibility(View.GONE);
            return false;
        }
    });
    // ?
    receiver = new NewMessageBroadcastReceiver();
    IntentFilter intentFilter = new IntentFilter(EMChatManager.getInstance().getNewMessageBroadcastAction());
    // Mainacitivity,??chat??????
    intentFilter.setPriority(5);
    registerReceiver(receiver, intentFilter);

    // ack?BroadcastReceiver
    IntentFilter ackMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getAckMessageBroadcastAction());
    ackMessageIntentFilter.setPriority(5);
    registerReceiver(ackMessageReceiver, ackMessageIntentFilter);

    // ??BroadcastReceiver
    IntentFilter deliveryAckMessageIntentFilter = new IntentFilter(
            EMChatManager.getInstance().getDeliveryAckMessageBroadcastAction());
    deliveryAckMessageIntentFilter.setPriority(5);
    registerReceiver(deliveryAckMessageReceiver, deliveryAckMessageIntentFilter);

    // ????T
    groupListener = new GroupListener();
    EMGroupManager.getInstance().addGroupChangeListener(groupListener);

    // show forward message if the message is not null
    String forward_msg_id = getIntent().getStringExtra("forward_msg_id");
    if (forward_msg_id != null) {
        // ?????
        forwardMessage(forward_msg_id);
    }

}

Example usage for android.content Context POWER_SERVICE

Introduction

Prototype

Document

Usage