Java Code Examples for android.os.Message

/**
 * Indicate that the connection attempt failed and notify the UI Activity.
 */
private void connectionFailed() {
    // Send a failure message back to the Activity
    Message msg = mHandler.obtainMessage(Constants.MESSAGE_TOAST);
    Bundle bundle = new Bundle();
    bundle.putString(Constants.TOAST, "Unable to connect device");
    msg.setData(bundle);
    mHandler.sendMessage(msg);

    mState = STATE_NONE;
    // Update UI title
    updateUserInterfaceTitle();

    // Start the service over to restart listening mode
    BluetoothChatService.this.startBT();
}
 

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Running = true;
    // when the activity starts the service, it expects to start it for a new wallet
    // the service is possibly still occupied with saving the last opened wallet
    // so we queue the open request
    // this should not matter since the old activity is not getting updates
    // and the new one is not listening yet (although it will be bound)
    Timber.d("onStartCommand()");
    // For each start request, send a message to start a job and deliver the
    // start ID so we know which request we're stopping when we finish the job
    Message msg = mServiceHandler.obtainMessage();
    msg.arg2 = START_SERVICE;
    if (intent != null) {
        msg.setData(intent.getExtras());
        mServiceHandler.sendMessage(msg);
        return START_STICKY;
    } else {
        // process restart - don't do anything - let system kill it again
        stop();
        return START_NOT_STICKY;
    }
}
 

@Override
public void handleMessage(Message msg) {
    final int userId = msg.arg2;
    final int n = mCallbacks.beginBroadcast();
    for (int i = 0; i < n; i++) {
        final IPackageInstallerCallback callback = mCallbacks.getBroadcastItem(i);
        final VUserHandle user = (VUserHandle) mCallbacks.getBroadcastCookie(i);
        // TODO: dispatch notifications for slave profiles
        if (userId == user.getIdentifier()) {
            try {
                invokeCallback(callback, msg);
            } catch (RemoteException ignored) {
            }
        }
    }
    mCallbacks.finishBroadcast();
}
 

public void handleMessage(Message msg) {
    super.handleMessage(msg);
    String smsg = msg.obj.toString();
    if (msg.what == 0) {
        try {
            LEYUApplication.dev_access_token = ((JSONObject) new JSONTokener(smsg)
                    .nextValue()).getString("access_token");
            LEYUApplication.set("leyu_dev_access_token", LEYUApplication.dev_access_token);
            LEYUApplication.this._callback.ReturnAccessToken(LEYUApplication
                    .dev_access_token);
        } catch (JSONException ex) {
            ex.printStackTrace();
            LEYUApplication.this._callback.onFailed(ex.getMessage());
        }
    } else if (msg.what == 1) {
        LEYUApplication.this._callback.OnCompleted(smsg);
    } else if (msg.what == 2) {
        LEYUApplication.this._callback.onFailed(smsg);
    }
}
 

private void goNext(final int nextIndex) {
    if (this.mHandler == null || this.mList == null) {
        FileDownloadLog.w(this, "need go next %d, but params is not ready %s %s",
                nextIndex, this.mHandler, this.mList);
        return;
    }

    Message nextMsg = this.mHandler.obtainMessage();
    nextMsg.what = WHAT_SERIAL_NEXT;
    nextMsg.arg1 = nextIndex;
    if (FileDownloadLog.NEED_LOG) {
        FileDownloadLog.d(SerialHandlerCallback.class, "start next %s %s",
                this.mList == null ? null : this.mList.get(0) == null ? null :
                        this.mList.get(0).getOrigin().getListener(), nextMsg.arg1);
    }
    this.mHandler.sendMessage(nextMsg);
}
 

public void show(View parent){
    this.showAtLocation(parent, Gravity.CENTER,0,0);

    new Thread(new Runnable(){
        @Override
        public void run() {
            //此处while的条件alpha不能<= 否则会出现黑屏
            while(layoutParams.alpha > 0.5f){
                try {
                    Thread.sleep(6);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                Message msg =mHandler.obtainMessage();
                msg.what = 1;
                layoutParams.alpha -= 0.01f;
                msg.obj = layoutParams;
                mHandler.sendMessage(msg);
            }
        }
    }).start();
}
 

private void setPortrait(){
    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                pngBM = User.getInstance().getUserPortrait();

                Message msg = new Message();
                msg.what = 0;
                handler.sendMessage(msg);

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

        }
    });
    thread.start();
}
 

public OkBus register(int tag, final Event ev, int thread) {
    SparseArray<Event> mEvent = new SparseArray<>();
    mEvent.put(thread, ev);
    if (mEventList.get(tag) != null) {
        mEventList.get(tag).add(mEvent);
    } else {
        List<SparseArray<Event>> mList = new ArrayList<>();
        mList.add(mEvent);
        mEventList.put(tag, mList);
    }
    LogUtils.e("Bus register", tag + " :" + mEventList.get(tag).size());
    if (mStickyEventList.get(tag) != null) {//注册时分发粘连事件
        final Message msg = new Message();
        msg.obj = mStickyEventList.get(tag);
        msg.what = tag;
        callEvent(msg, ev, thread);
        LogUtils.e("mStickyEvent register  and  onEvent", tag + " :" + mEventList.get(tag).size());
    }
    return this;
}
 

@Override
public void handleMessage(Message msg) {
    switch (msg.what) {
        case MESSAGE_FADE_OUT:
            log.i("isfu123", "isfu123");
            if (isShowing){
                hide(1);
            }
            break;
        case MESSAGE_HIDE_BOX:
            $.id(R.id.app_video_center_box_right).gone();
            $.id(R.id.app_video_center_box_left).gone();
            $.id(R.id.app_video_top_box_right).gone();
            show(defaultTimeout,true);
            break;
        case MESSAGE_SHOW_BOX:
            show(defaultTimeout,true);
            break;
        case MESSAGE_SEEK_NEW_POSITION:
            break;
        case MESSAGE_RESTART_PLAY:
            play(url);
            break;
    }
}
 

public final void preview(boolean start, SurfaceView view, int uid) {
    if (Thread.currentThread() != this) {
        log.warn("preview() - worker thread asynchronously " + start + " " + view + " " + (uid & 0XFFFFFFFFL));
        Message envelop = new Message();
        envelop.what = ACTION_WORKER_PREVIEW;
        envelop.obj = new Object[]{start, view, uid};
        mWorkerHandler.sendMessage(envelop);
        return;
    }

    ensureRtcEngineReadyLock();
    if (start) {
        mRtcEngine.setupLocalVideo(new VideoCanvas(view, VideoCanvas.RENDER_MODE_HIDDEN, uid));
        mRtcEngine.startPreview();
    } else {
        mRtcEngine.stopPreview();
    }
}
 

@Override
public void handleMessage(Message msg) {
    switch (msg.what) {
        case REQUEST_UPDATE:
            UIProgressRequestListener uiProgressRequestListener = mUIProgressRequestListenerWeakReference.get();
            if (uiProgressRequestListener != null) {
                //获得进度实体类
                ProgressModel progressModel = (ProgressModel) msg.obj;
                //回调抽象方法
                uiProgressRequestListener.onUIRequestProgress(progressModel.getCurrentBytes(), progressModel.getContentLength(), progressModel.isDone());
            }
            break;
        default:
            super.handleMessage(msg);
            break;
    }
}
 

@Override
public void handleMessage(Message msg) {
  InitActivity ctx = (InitActivity) mContext.get();
  switch (msg.what) {
    case 0:
      ctx.mPD.dismiss();
      Intent src = ctx.getIntent();
      Intent i = new Intent();
      i.setClassName(src.getStringExtra("package"), src.getStringExtra("className"));
      i.setData(src.getData());
      i.putExtras(src);
      i.putExtra(FROM_ME, true);
      ctx.startActivity(i);
      ctx.finish();
      break;
  }
}
 

private void updateSub(int subType, byte[] bytes, String encoding, int width, int height) {
  if (mEventHandler != null) {
    Message m = mEventHandler.obtainMessage(MEDIA_TIMED_TEXT, width, height);
    Bundle b = m.getData();
    if (subType == SUBTITLE_TEXT) {
      b.putInt(MEDIA_SUBTITLE_TYPE, SUBTITLE_TEXT);
      if (encoding == null) {
        b.putString(MEDIA_SUBTITLE_STRING, new String(bytes));
      } else {
        try {
          b.putString(MEDIA_SUBTITLE_STRING, new String(bytes, encoding.trim()));
        } catch (UnsupportedEncodingException e) {
          Log.e("updateSub", e);
          b.putString(MEDIA_SUBTITLE_STRING, new String(bytes));
        }
      }
    } else if (subType == SUBTITLE_BITMAP) {
      b.putInt(MEDIA_SUBTITLE_TYPE, SUBTITLE_BITMAP);
      b.putByteArray(MEDIA_SUBTITLE_BYTES, bytes);
    }
    mEventHandler.sendMessage(m);
  }
}
 

@Override
protected void after(XParam param) throws Throwable {
	if (mMethod == Methods.next) {
		Message msg = (Message) param.getResult();
		if (msg != null) {
			if (msg.obj instanceof Intent) {
				Intent intent = (Intent) msg.obj;
				if (intent != null)
					if (checkIntent(Binder.getCallingUid(), intent))
						param.setResult(null);
			}
		}

	} else if (mMethod == Methods.handleReceiver) {
		// Do nothing

	} else
		Util.log(this, Log.WARN, "Unknown method=" + param.method.getName());
}
 

private void init() {
    handler = new Handler(getLooper()) {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what){
                case CHECK_HITALK_CONVERSATION:
                        MonitorEvent monitorEvent = (MonitorEvent) msg.obj;
                        Message newMsg = new Message();
                        newMsg.copyFrom(msg);
                        if (!monitorEvent.check()) {
                            IMMEDIATE_TIMES ++;
                            monitorEvent.run();
                            handler.sendMessageDelayed(newMsg,
                                    LOOP_IMMEDIATE + (IMMEDIATE_TIMES / 3) * LOOP_INCREAMENT);
                        } else {
                            IMMEDIATE_TIMES = 0;
                            handler.sendMessageDelayed(newMsg,
                                    LOOP_TIME);
                        }
                    break;
            }
        }
    };
}
 

@Override
public void onReceive(Context context, Intent intent) {
    String key = intent.getStringExtra(Constants.ACTION_KEY);
    Message message = Message.obtain(handler);
    switch (key) {
        case Constants.ACTION_OK:
            message.what = 0;
            break;
        case Constants.ACTION_PREV:
            message.what = 1;
            break;
        case Constants.ACTION_NEXT:
            message.what = 2;
            break;
        case Constants.ACTION_MENU:
            message.what = 3;
            break;
        case Constants.ACTION_PLAY:
            message.what = 4;
            break;
    }
    handler.sendMessage(message);
}
 

@Override
public boolean handleMessage(Message msg) {
    switch (msg.what) {
        case WHAT_NEXT:
            try {
                synchronized (finishCallback) {
                    if (paused) break;
                    workingTask = mTasks.take();
                    workingTask.addFinishListener(finishCallback)
                            .start();
                }

            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            break;
    }
    return false;
}
 

private g() {
    if (this.f == null) {
        this.f = new HandlerThread("opensdk.report.handlerthread", 10);
        this.f.start();
    }
    if (this.f.isAlive() && this.f.getLooper() != null) {
        this.g = new Handler(this, this.f.getLooper()) {
            final /* synthetic */ g a;

            public void handleMessage(Message message) {
                switch (message.what) {
                    case 1000:
                        this.a.b();
                        break;
                    case 1001:
                        this.a.e();
                        break;
                }
                super.handleMessage(message);
            }
        };
    }
}
 

@Override
public void handleMessage(Message msg) {
    switch (msg.what) {
        case RESPONSE_UPDATE:
            UIProgressResponseListener uiProgressResponseListener = mUIProgressResponseListenerWeakReference.get();
            if (uiProgressResponseListener != null) {
                //获得进度实体类
                ProgressModel progressModel = (ProgressModel) msg.obj;
                //回调抽象方法
                uiProgressResponseListener.onUIResponseProgress(progressModel.getCurrentBytes(), progressModel.getContentLength(), progressModel.isDone());
            }
            break;
        default:
            super.handleMessage(msg);
            break;
    }
}
 

public CastDebug(Context context){
    super();

    sCastDebug = this;
    mContext = context;
    mHandler = new android.os.Handler(){
        public void handleMessage(Message msg) {
            try {
                if((ArchosVideoCastManager.getInstance().isRemoteMediaPlaying()||
                        ArchosVideoCastManager.getInstance().getPlaybackStatus()== MediaStatus.PLAYER_STATE_IDLE)&&is_media_loading){
                    goToNextVideo();
                }
            } catch (TransientNetworkDisconnectionException e) {
                e.printStackTrace();
            } catch (NoConnectionException e) {
                e.printStackTrace();
            }
        }


    };
    mVideoMapper = new VideoCursorMapper();
    ArchosVideoCastManager.getInstance().addArchosCastManagerListener(this);

}
 

public void handleMessage(Message msg){
    switch (msg.what){
        case 1:
            response = (String) msg.obj;

            //隐藏载入提示
            webView.setVisibility(View.VISIBLE);
            progressBar.setVisibility(View.GONE);

            webView.loadData(response, "text/html;charset=UTF-8", null);//以UTF-8加载HTML代码的内容，防止出现乱码

            //以下为对webView的设置
            //开启javascript
            webView.getSettings().setJavaScriptEnabled(true);

            //设置滚动条
            webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
            webView.setHorizontalScrollBarEnabled(false);

            //<IMPORTENT!>
            //保证webview里图片不会超出当前显示的设置，我也不知道原理，暂时不要更改！
            webView.getSettings().setTextZoom(180);
            webView.setInitialScale(getScale());
    }

}
 

@Override
public void handleMessage(Message msg) {
	int type = msg.what;
	switch (type) {
	case BaiduNaviManager.TTSPlayMsgType.PLAY_START_MSG: {
		// showToastMsg("Handler : TTS play start");
		break;
	}
	case BaiduNaviManager.TTSPlayMsgType.PLAY_END_MSG: {
		// showToastMsg("Handler : TTS play end");
		break;
	}
	default:
		break;
	}
}
 

public void quitSynchronously() {
    state = State.DONE;
    cameraManager.stopPreview();
    Message quit = Message.obtain(decodeThread.getHandler(), R.id.quit);
    quit.sendToTarget();
    try {
        // Wait at most half a second; should be enough time, and onPause()
        // will timeout quickly
        decodeThread.join(500L);
    } catch (InterruptedException e) {
        // continue
    }

    // Be absolutely sure we don't send any queued up messages
    removeMessages(R.id.decode_succeeded);
    removeMessages(R.id.decode_failed);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_comic_read);
    Intent intent = getIntent();
    comicUrlGet = intent.getStringExtra(ComicFragment.COMICREADURL);
    comicUrl = getComicUrl(comicUrlGet);
    //pictureId = comicUrl.substring(comicUrl.lastIndexOf("/") + 1,comicUrl.lastIndexOf("."));
    //.replace(".html","_2.html");
    //Log.d("url",comicUrl);
    comicSelectPage = (Button) findViewById(R.id.comic_selectPage);
    comicSelectPage.setOnClickListener(this);
    tvComicReadPage = (TextView) findViewById(R.id.comic_readPage);
    tvComicUrlLines = (TextView) findViewById(R.id.comic_change_lines);
    tvComicUrlLines.setOnClickListener(this);
    setTVComicUrlLines(tvComicUrlLines);
    progressBar = (ProgressBar) findViewById(R.id.pb_comic_progress);
    llComicReadBar = (LinearLayout) findViewById(R.id.comic_read_llbar);
    comicPagesText = (TextView) findViewById(R.id.read_comic_pages);
    viewPager = (ViewPager) findViewById(R.id.comic_read_pager);
    //viewPager.setOnLongClickListener(this);
    viewPager.setOffscreenPageLimit(1);
    pageAdapter = new MyPageAdapter(this.getSupportFragmentManager(), comicViewPagerList);
    viewPager.setAdapter(pageAdapter);
    viewPager.setPageTransformer(true, new DepthPageTransformer());
    handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            if (msg.what == 1) {
                llComicReadBar.setVisibility(View.GONE);
            }
        }
    };
    handler.sendEmptyMessageDelayed(1, 3000);
    queryComicUrl();
}
 

private static Message getSuccessMessage(Object listener, Object data){
    Message msg = new Message();
    msg.what = 1;
    msg.arg1 = SUCCESS;
    msg.obj = new MessageObj(listener, data);
    return msg;
}
 

@Override
public T apply(@NonNull HttpResult<T> tHttpResult) throws Exception {
    if (tHttpResult.getStatus() != NetWorkState.SUCCEES) {
        Message message = new Message();
        message.obj = tHttpResult.getMessage();
        handler.sendMessage(message);
        throw new ApiException();
    }
    return tHttpResult.getResult();
}
 

@Override
public void onPreviewFrame(byte[] data, Camera camera) {
    Point cameraResolution = configManager.getCameraResolution();
    Handler thePreviewHandler = previewHandler;
    if (cameraResolution != null && thePreviewHandler != null) {
        Message message = thePreviewHandler.obtainMessage(previewMessage, cameraResolution.x,
                cameraResolution.y, data);
        message.sendToTarget();
        previewHandler = null;
    } else {
        Log.d(TAG, "Got preview callback, but no handler or resolution available");
    }
}
 

@Override
public boolean handleMessage(final Message msg) {

    AgentWebUtils.runInUiThread(new Runnable() {
        @Override
        public void run() {
            AboveLCallback.this.safeHandleMessage(msg);
        }
    });
    return false;
}
 

@Override
public void handleMessage(Message msg) {

    if (msg.what == DynamicAdapter.REPLY_COMMENT) {

        DComment comment = (DComment) msg.obj;
        int position = msg.arg1;
        if (comment.getAuthor().getObjectId().equals(BmobUser.getCurrentUser(User.class).getObjectId())) {
            return;
        }
        showReplyPopup(comment.getDynamicId(), position, comment.getAuthor());
        popupInputMethodWindow();

    }
}
 

@Override
protected Void doInBackground(Integer... params) {
    final int totalDisk = params[0];
    final CancellationSignal cancellationSignal = new CancellationSignal();

    Brain.solveHanoi(totalDisk, new Brain.Callback() {
        @Override
        public void onMoveDisk(int disk, int from, int to) {
            if (isCancelled()) {
                cancellationSignal.cancel();
            }

            Message message = mainUIHandler.obtainMessage(disk, from, to);
            mainUIHandler.sendMessageDelayed(message, (++step) * 1000) ;
        }

        @Override
        public void onFinished() {
            Log.i(TAG, "Finish solving puzzle in " + step + " steps!");
        }

        @Override
        public void onCanceled() {
            Log.i(TAG, "Cancel solving puzzle!");
        }
    }, cancellationSignal);

    return null;
}
 

@Override
public boolean handleMessage(Message msg) {
    if (msg.what == MSG_UPDATE_PLAY_TIME) {
        updatePlayTime();
        updatePlayProgress();
    } else if (msg.what == MSG_HIDE_CONTROLLER) {
        showOrHideController();
    } else if (msg.what == MSG_PLAY_ON_TV_RESULT) {
        shareToTvResult(msg);
    } else if (msg.what == MSG_EXIT_FORM_TV_RESULT) {
        exitFromTvResult(msg);
    }
    return false;
}
 

public void handleMessage(Message msg) {

            if (imgView.getTag().equals(path)) {
                Bitmap btp = (Bitmap) msg.obj;
                imgView.setImageBitmap(btp);
            }
        }
 

@Override
public void handleMessage(Message message) {
    if (!running) {
        return;
    }
    switch (message.what) {
        case QRCodeScanner.decode:
            decode((byte[]) message.obj, message.arg1, message.arg2);
            break;
        case QRCodeScanner.quit:
            running = false;
            Looper.myLooper().quit();
            break;
    }
}
 

static void flushStackLocalLeaks(Looper looper) {
    Handler handler = new Handler(looper) {
        @Override public void handleMessage(Message msg) {
            sendMessageDelayed(obtainMessage(), THREAD_LEAK_CLEANING_MS);
        }
    };
    handler.sendMessageDelayed(handler.obtainMessage(), THREAD_LEAK_CLEANING_MS);
}
 

private void playNote(int frequency) {
    handler.removeMessages(HANDLER_MSG_STOP);

    Message msg = new Message();
    msg.what = frequency == 0 ? HANDLER_MSG_STOP : HANDLER_MSG_PLAY;
    msg.arg1 = frequency;
    handler.sendMessage(msg);
}
 

@Override
public void handleMessage(Message msg) {
    if (Math.abs(mMoveLen) < SPEED) {
        mMoveLen = 0;
        if (mTask != null) {
            mTask.cancel();
            mTask = null;
            performSelect();
        }
    } else {
        // Here, mMoveLen / Math.abs (mMoveLen) is designed to hold the mMoveLen plus or minus sign to achieve roll or roll down.
        mMoveLen = mMoveLen - mMoveLen / Math.abs(mMoveLen) * SPEED;
    }
    invalidate();
}
 

protected Message obtainMessage(int responseMessage, Object response) {
    Message msg;
    if (handler != null) {
        msg = handler.obtainMessage(responseMessage, response);
    } else {
        msg = Message.obtain();
        if (msg != null) {
            msg.what = responseMessage;
            msg.obj = response;
        }
    }
    return msg;
}
 

@Override
protected void onLooperPrepared() {
    mRequestHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            if (msg.what == MESSAGE_DOWNLOAD) {
                T target = (T) msg.obj;
                Log.i(TAG, "Got a request for URL: " + mRequestMap.get(target));
                handleRequest(target);
            }
        }
    };
}
 

/**
 * Handler of incoming messages from BLEListener.
 */
private void handleMicroBitMessage(Message msg) {
    Bundle data = msg.getData();
    CmdArg cmd = new CmdArg(data.getInt(IPCConstants.BUNDLE_DATA), data.getString(IPCConstants.BUNDLE_VALUE));

    logi("handleMicrobitMessage() ## msg.arg1 = " + msg.arg1 + " ## data.getInt=" + data.getInt(IPCConstants
            .BUNDLE_DATA) + " ## data.getString=" + data.getString(IPCConstants.BUNDLE_VALUE));

    AbstractPlugin abstractPlugin = pluginsCreator.createPlugin(msg.arg1, pluginHandler);

    if(abstractPlugin != null) {
        abstractPlugin.handleEntry(cmd);
    }
}
 

@Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
    mServiceMessenger = new Messenger(iBinder);
    //连接到服务
    if (null != mServiceMessenger) {
        Message msgToService = Message.obtain();
        msgToService.replyTo = mMessengerClient;
        msgToService.what = Constant.MAIN_ACTIVITY;
        try {
            mServiceMessenger.send(msgToService);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
}