Examples with Messenger android.os.Messenger used on opensource projects

Example 11 with Messenger

use of android.os.Messenger in project platform_frameworks_base by android.

the class SettingInjectorService method sendStatus.

/**
     * Send the enabled values back to the caller via the messenger encoded in the
     * intent.
     */
private void sendStatus(Intent intent, boolean enabled) {
    Message message = Message.obtain();
    Bundle bundle = new Bundle();
    bundle.putBoolean(ENABLED_KEY, enabled);
    message.setData(bundle);
    if (Log.isLoggable(TAG, Log.DEBUG)) {
        Log.d(TAG, mName + ": received " + intent + ", enabled=" + enabled + ", sending message: " + message);
    }
    Messenger messenger = intent.getParcelableExtra(MESSENGER_KEY);
    try {
        messenger.send(message);
    } catch (RemoteException e) {
        Log.e(TAG, mName + ": sending dynamic status failed", e);
    }
}

Example 12 with Messenger

use of android.os.Messenger in project platform_frameworks_base by android.

the class NetworkStatsManager method registerUsageCallback.

/**
     * Registers to receive notifications about data usage on specified networks.
     *
     * <p>The callbacks will continue to be called as long as the process is live or
     * {@link #unregisterUsageCallback} is called.
     *
     * @param networkType Type of network to monitor. Either
                  {@link ConnectivityManager#TYPE_MOBILE} or {@link ConnectivityManager#TYPE_WIFI}.
     * @param subscriberId If applicable, the subscriber id of the network interface.
     * @param thresholdBytes Threshold in bytes to be notified on.
     * @param callback The {@link UsageCallback} that the system will call when data usage
     *            has exceeded the specified threshold.
     * @param handler to dispatch callback events through, otherwise if {@code null} it uses
     *            the calling thread.
     */
public void registerUsageCallback(int networkType, String subscriberId, long thresholdBytes, UsageCallback callback, @Nullable Handler handler) {
    checkNotNull(callback, "UsageCallback cannot be null");
    final Looper looper;
    if (handler == null) {
        looper = Looper.myLooper();
    } else {
        looper = handler.getLooper();
    }
    if (DBG) {
        Log.d(TAG, "registerUsageCallback called with: {" + " networkType=" + networkType + " subscriberId=" + subscriberId + " thresholdBytes=" + thresholdBytes + " }");
    }
    NetworkTemplate template = createTemplate(networkType, subscriberId);
    DataUsageRequest request = new DataUsageRequest(DataUsageRequest.REQUEST_ID_UNSET, template, thresholdBytes);
    try {
        CallbackHandler callbackHandler = new CallbackHandler(looper, networkType, subscriberId, callback);
        callback.request = mService.registerUsageCallback(mContext.getOpPackageName(), request, new Messenger(callbackHandler), new Binder());
        if (DBG)
            Log.d(TAG, "registerUsageCallback returned " + callback.request);
        if (callback.request == null) {
            Log.e(TAG, "Request from callback is null; should not happen");
        }
    } catch (RemoteException e) {
        if (DBG)
            Log.d(TAG, "Remote exception when registering callback");
        throw e.rethrowFromSystemServer();
    }
}

Example 13 with Messenger

use of android.os.Messenger in project platform_frameworks_base by android.

the class NsdManager method init.

/**
     * Initialize AsyncChannel
     */
private void init() {
    final Messenger messenger = getMessenger();
    if (messenger == null)
        throw new RuntimeException("Failed to initialize");
    HandlerThread t = new HandlerThread("NsdManager");
    t.start();
    mHandler = new ServiceHandler(t.getLooper());
    mAsyncChannel.connect(mContext, mHandler, messenger);
    try {
        mConnected.await();
    } catch (InterruptedException e) {
        Log.e(TAG, "interrupted wait at init");
    }
}

Example 14 with Messenger

use of android.os.Messenger in project platform_frameworks_base by android.

the class NetworkStatsServiceTest method testRegisterUsageCallback.

@Test
public void testRegisterUsageCallback() throws Exception {
    // pretend that wifi network comes online; service should ask about full
    // network state, and poll any existing interfaces before updating.
    expectCurrentTime();
    expectDefaultSettings();
    expectNetworkState(buildWifiState());
    expectNetworkStatsSummary(buildEmptyStats());
    expectNetworkStatsUidDetail(buildEmptyStats());
    expectBandwidthControlCheck();
    mService.forceUpdateIfaces();
    // verify service has empty history for wifi
    assertNetworkTotal(sTemplateWifi, 0L, 0L, 0L, 0L, 0);
    String callingPackage = "the.calling.package";
    // very small; should be overriden by framework
    long thresholdInBytes = 1L;
    DataUsageRequest inputRequest = new DataUsageRequest(DataUsageRequest.REQUEST_ID_UNSET, sTemplateWifi, thresholdInBytes);
    // Create a messenger that waits for callback activity
    ConditionVariable cv = new ConditionVariable(false);
    LatchedHandler latchedHandler = new LatchedHandler(Looper.getMainLooper(), cv);
    Messenger messenger = new Messenger(latchedHandler);
    // Force poll
    expectCurrentTime();
    expectDefaultSettings();
    expectNetworkStatsSummary(buildEmptyStats());
    expectNetworkStatsUidDetail(buildEmptyStats());
    // Register and verify request and that binder was called
    DataUsageRequest request = mService.registerUsageCallback(callingPackage, inputRequest, messenger, mBinder);
    assertTrue(request.requestId > 0);
    assertTrue(Objects.equals(sTemplateWifi, request.template));
    // 2 MB
    long minThresholdInBytes = 2 * 1024 * 1024;
    assertEquals(minThresholdInBytes, request.thresholdInBytes);
    // Send dummy message to make sure that any previous message has been handled
    mHandler.sendMessage(mHandler.obtainMessage(-1));
    mHandlerThread.waitForIdle(WAIT_TIMEOUT);
    // Make sure that the caller binder gets connected
    verify(mBinder).linkToDeath(any(IBinder.DeathRecipient.class), anyInt());
    // modify some number on wifi, and trigger poll event
    // not enough traffic to call data usage callback
    incrementCurrentTime(HOUR_IN_MILLIS);
    expectCurrentTime();
    expectDefaultSettings();
    expectNetworkStatsSummary(new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 1024L, 1L, 2048L, 2L));
    expectNetworkStatsUidDetail(buildEmptyStats());
    forcePollAndWaitForIdle();
    // verify service recorded history
    assertNetworkTotal(sTemplateWifi, 1024L, 1L, 2048L, 2L, 0);
    // make sure callback has not being called
    assertEquals(INVALID_TYPE, latchedHandler.mLastMessageType);
    // and bump forward again, with counters going higher. this is
    // important, since it will trigger the data usage callback
    incrementCurrentTime(DAY_IN_MILLIS);
    expectCurrentTime();
    expectDefaultSettings();
    expectNetworkStatsSummary(new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 4096000L, 4L, 8192000L, 8L));
    expectNetworkStatsUidDetail(buildEmptyStats());
    forcePollAndWaitForIdle();
    // verify service recorded history
    assertNetworkTotal(sTemplateWifi, 4096000L, 4L, 8192000L, 8L, 0);
    // Wait for the caller to ack receipt of CALLBACK_LIMIT_REACHED
    assertTrue(cv.block(WAIT_TIMEOUT));
    assertEquals(NetworkStatsManager.CALLBACK_LIMIT_REACHED, latchedHandler.mLastMessageType);
    cv.close();
    // Allow binder to disconnect
    when(mBinder.unlinkToDeath(any(IBinder.DeathRecipient.class), anyInt())).thenReturn(true);
    // Unregister request
    mService.unregisterUsageRequest(request);
    // Wait for the caller to ack receipt of CALLBACK_RELEASED
    assertTrue(cv.block(WAIT_TIMEOUT));
    assertEquals(NetworkStatsManager.CALLBACK_RELEASED, latchedHandler.mLastMessageType);
    // Make sure that the caller binder gets disconnected
    verify(mBinder).unlinkToDeath(any(IBinder.DeathRecipient.class), anyInt());
}

Example 15 with Messenger

use of android.os.Messenger in project platform_frameworks_base by android.

the class PhoneWindowManager method takeScreenshot.

// Assume this is called from the Handler thread.
private void takeScreenshot(final int screenshotType) {
    synchronized (mScreenshotLock) {
        if (mScreenshotConnection != null) {
            return;
        }
        final ComponentName serviceComponent = new ComponentName(SYSUI_PACKAGE, SYSUI_SCREENSHOT_SERVICE);
        final Intent serviceIntent = new Intent();
        serviceIntent.setComponent(serviceComponent);
        ServiceConnection conn = new ServiceConnection() {

            @Override
            public void onServiceConnected(ComponentName name, IBinder service) {
                synchronized (mScreenshotLock) {
                    if (mScreenshotConnection != this) {
                        return;
                    }
                    Messenger messenger = new Messenger(service);
                    Message msg = Message.obtain(null, screenshotType);
                    final ServiceConnection myConn = this;
                    Handler h = new Handler(mHandler.getLooper()) {

                        @Override
                        public void handleMessage(Message msg) {
                            synchronized (mScreenshotLock) {
                                if (mScreenshotConnection == myConn) {
                                    mContext.unbindService(mScreenshotConnection);
                                    mScreenshotConnection = null;
                                    mHandler.removeCallbacks(mScreenshotTimeout);
                                }
                            }
                        }
                    };
                    msg.replyTo = new Messenger(h);
                    msg.arg1 = msg.arg2 = 0;
                    if (mStatusBar != null && mStatusBar.isVisibleLw())
                        msg.arg1 = 1;
                    if (mNavigationBar != null && mNavigationBar.isVisibleLw())
                        msg.arg2 = 1;
                    try {
                        messenger.send(msg);
                    } catch (RemoteException e) {
                    }
                }
            }

            @Override
            public void onServiceDisconnected(ComponentName name) {
                synchronized (mScreenshotLock) {
                    if (mScreenshotConnection != null) {
                        mContext.unbindService(mScreenshotConnection);
                        mScreenshotConnection = null;
                        mHandler.removeCallbacks(mScreenshotTimeout);
                        notifyScreenshotError();
                    }
                }
            }
        };
        if (mContext.bindServiceAsUser(serviceIntent, conn, Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE, UserHandle.CURRENT)) {
            mScreenshotConnection = conn;
            mHandler.postDelayed(mScreenshotTimeout, 10000);
        }
    }
}