Examples with ContentObserver android.database.ContentObserver used on opensource projects

Example 46 with ContentObserver

use of android.database.ContentObserver in project android_frameworks_base by crdroidandroid.

the class SettingsProviderTest method setSettingAndAssertSuccessfulChange.

private void setSettingAndAssertSuccessfulChange(Runnable setCommand, final int type, final String name, final String value, final int userId) throws Exception {
    ContentResolver contentResolver = getContext().getContentResolver();
    final Uri settingUri = getBaseUriForType(type);
    final AtomicBoolean success = new AtomicBoolean();
    ContentObserver contentObserver = new ContentObserver(new Handler(Looper.getMainLooper())) {

        public void onChange(boolean selfChange, Uri changeUri, int changeId) {
            Log.i(LOG_TAG, "onChange(" + selfChange + ", " + changeUri + ", " + changeId + ")");
            assertEquals("Wrong change Uri", changeUri, settingUri);
            assertEquals("Wrong user id", userId, changeId);
            String changeValue = getStringViaFrontEndApiSetting(type, name, userId);
            assertEquals("Wrong setting value", value, changeValue);
            success.set(true);
            synchronized (mLock) {
                mLock.notifyAll();
            }
        }
    };
    contentResolver.registerContentObserver(settingUri, false, contentObserver, userId);
    try {
        setCommand.run();
        final long startTimeMillis = SystemClock.uptimeMillis();
        synchronized (mLock) {
            if (success.get()) {
                return;
            }
            final long elapsedTimeMillis = SystemClock.uptimeMillis() - startTimeMillis;
            if (elapsedTimeMillis > WAIT_FOR_SETTING_URI_CHANGE_TIMEOUT_MILLIS) {
                fail("Could not change setting for " + WAIT_FOR_SETTING_URI_CHANGE_TIMEOUT_MILLIS + " ms");
            }
            final long remainingTimeMillis = WAIT_FOR_SETTING_URI_CHANGE_TIMEOUT_MILLIS - elapsedTimeMillis;
            try {
                mLock.wait(remainingTimeMillis);
            } catch (InterruptedException ie) {
            /* ignore */
            }
        }
    } finally {
        contentResolver.unregisterContentObserver(contentObserver);
    }
}

Example 47 with ContentObserver

use of android.database.ContentObserver in project android_frameworks_base by crdroidandroid.

the class LocationManagerService method systemRunning.

public void systemRunning() {
    synchronized (mLock) {
        if (D)
            Log.d(TAG, "systemRunning()");
        // fetch package manager
        mPackageManager = mContext.getPackageManager();
        // fetch power manager
        mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
        // prepare worker thread
        mLocationHandler = new LocationWorkerHandler(BackgroundThread.get().getLooper());
        // prepare mLocationHandler's dependents
        mLocationFudger = new LocationFudger(mContext, mLocationHandler);
        mBlacklist = new LocationBlacklist(mContext, mLocationHandler);
        mBlacklist.init();
        mGeofenceManager = new GeofenceManager(mContext, mBlacklist);
        // Monitor for app ops mode changes.
        AppOpsManager.OnOpChangedListener callback = new AppOpsManager.OnOpChangedInternalListener() {

            public void onOpChanged(int op, String packageName) {
                synchronized (mLock) {
                    for (Receiver receiver : mReceivers.values()) {
                        receiver.updateMonitoring(true);
                    }
                    applyAllProviderRequirementsLocked();
                }
            }
        };
        mAppOps.startWatchingMode(AppOpsManager.OP_COARSE_LOCATION, null, callback);
        PackageManager.OnPermissionsChangedListener permissionListener = new PackageManager.OnPermissionsChangedListener() {

            @Override
            public void onPermissionsChanged(final int uid) {
                synchronized (mLock) {
                    applyAllProviderRequirementsLocked();
                }
            }
        };
        mPackageManager.addOnPermissionsChangeListener(permissionListener);
        mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
        updateUserProfiles(mCurrentUserId);
        // prepare providers
        loadProvidersLocked();
        updateProvidersLocked();
    }
    // listen for settings changes
    mContext.getContentResolver().registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.LOCATION_PROVIDERS_ALLOWED), true, new ContentObserver(mLocationHandler) {

        @Override
        public void onChange(boolean selfChange) {
            synchronized (mLock) {
                updateProvidersLocked();
            }
        }
    }, UserHandle.USER_ALL);
    mPackageMonitor.register(mContext, mLocationHandler.getLooper(), true);
    // listen for user change
    IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(Intent.ACTION_USER_SWITCHED);
    intentFilter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED);
    intentFilter.addAction(Intent.ACTION_MANAGED_PROFILE_REMOVED);
    intentFilter.addAction(Intent.ACTION_SHUTDOWN);
    mContext.registerReceiverAsUser(new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (Intent.ACTION_USER_SWITCHED.equals(action)) {
                switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0));
            } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action) || Intent.ACTION_MANAGED_PROFILE_REMOVED.equals(action)) {
                updateUserProfiles(mCurrentUserId);
            } else if (Intent.ACTION_SHUTDOWN.equals(action)) {
                // shutdown only if UserId indicates whole system, not just one user
                if (D)
                    Log.d(TAG, "Shutdown received with UserId: " + getSendingUserId());
                if (getSendingUserId() == UserHandle.USER_ALL) {
                    shutdownComponents();
                }
            }
        }
    }, UserHandle.ALL, intentFilter, null, mLocationHandler);
}

Example 48 with ContentObserver

use of android.database.ContentObserver in project android_frameworks_base by crdroidandroid.

the class NightDisplayService method onUserChanged.

private void onUserChanged(int userHandle) {
    final ContentResolver cr = getContext().getContentResolver();
    if (mCurrentUser != UserHandle.USER_NULL) {
        if (mUserSetupObserver != null) {
            cr.unregisterContentObserver(mUserSetupObserver);
            mUserSetupObserver = null;
        } else if (mBootCompleted) {
            tearDown();
        }
    }
    mCurrentUser = userHandle;
    if (mCurrentUser != UserHandle.USER_NULL) {
        if (!isUserSetupCompleted(cr, mCurrentUser)) {
            mUserSetupObserver = new ContentObserver(mHandler) {

                @Override
                public void onChange(boolean selfChange, Uri uri) {
                    if (isUserSetupCompleted(cr, mCurrentUser)) {
                        cr.unregisterContentObserver(this);
                        mUserSetupObserver = null;
                        if (mBootCompleted) {
                            setUp();
                        }
                    }
                }
            };
            cr.registerContentObserver(Secure.getUriFor(Secure.USER_SETUP_COMPLETE), false, /* notifyForDescendents */
            mUserSetupObserver, mCurrentUser);
        } else if (mBootCompleted) {
            setUp();
        }
    }
}

Example 49 with ContentObserver

use of android.database.ContentObserver in project android_frameworks_base by AOSPA.

the class ContentQueryMap method setKeepUpdated.

/**
     * Change whether or not the ContentQueryMap will register with the cursor's ContentProvider 
     * for change notifications. If you use a ContentQueryMap in an activity you should call this
     * with false in onPause(), which means you need to call it with true in onResume()
     * if want it to be kept updated.
     * @param keepUpdated if true the ContentQueryMap should be registered with the cursor's
     * ContentProvider, false otherwise
     */
public void setKeepUpdated(boolean keepUpdated) {
    if (keepUpdated == mKeepUpdated)
        return;
    mKeepUpdated = keepUpdated;
    if (!mKeepUpdated) {
        mCursor.unregisterContentObserver(mContentObserver);
        mContentObserver = null;
    } else {
        if (mHandlerForUpdateNotifications == null) {
            mHandlerForUpdateNotifications = new Handler();
        }
        if (mContentObserver == null) {
            mContentObserver = new ContentObserver(mHandlerForUpdateNotifications) {

                @Override
                public void onChange(boolean selfChange) {
                    // let it query lazily when they ask for the values.
                    if (countObservers() != 0) {
                        requery();
                    } else {
                        mDirty = true;
                    }
                }
            };
        }
        mCursor.registerContentObserver(mContentObserver);
        // mark dirty, since it is possible the cursor's backing data had changed before we 
        // registered for changes
        mDirty = true;
    }
}

Example 50 with ContentObserver

use of android.database.ContentObserver in project android_frameworks_base by AOSPA.

the class BluetoothManagerService method registerForBleScanModeChange.

// Monitor change of BLE scan only mode settings.
private void registerForBleScanModeChange() {
    ContentObserver contentObserver = new ContentObserver(null) {

        @Override
        public void onChange(boolean selfChange) {
            if (isBleScanAlwaysAvailable()) {
                // Nothing to do
                return;
            }
            // BLE scan is not available.
            disableBleScanMode();
            clearBleApps();
            try {
                mBluetoothLock.readLock().lock();
                if (mBluetooth != null)
                    mBluetooth.onBrEdrDown();
            } catch (RemoteException e) {
                Slog.e(TAG, "error when disabling bluetooth", e);
            } finally {
                mBluetoothLock.readLock().unlock();
            }
        }
    };
    mContentResolver.registerContentObserver(Settings.Global.getUriFor(Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE), false, contentObserver);
}