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

Example 66 with ContentObserver

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

the class WifiWatchdogStateMachine method registerForSettingsChanges.

/**
     * Observes watchdogs secure setting changes.
     */
private void registerForSettingsChanges() {
    ContentObserver contentObserver = new ContentObserver(this.getHandler()) {

        @Override
        public void onChange(boolean selfChange) {
            sendMessage(EVENT_WATCHDOG_SETTINGS_CHANGE);
        }
    };
    mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED), false, contentObserver);
}

Example 67 with ContentObserver

use of android.database.ContentObserver in project platform_frameworks_base by android.

the class KeyguardUpdateMonitor method watchForDeviceProvisioning.

private void watchForDeviceProvisioning() {
    mDeviceProvisionedObserver = new ContentObserver(mHandler) {

        @Override
        public void onChange(boolean selfChange) {
            super.onChange(selfChange);
            mDeviceProvisioned = isDeviceProvisionedInSettingsDb();
            if (mDeviceProvisioned) {
                mHandler.sendEmptyMessage(MSG_DEVICE_PROVISIONED);
            }
            if (DEBUG)
                Log.d(TAG, "DEVICE_PROVISIONED state = " + mDeviceProvisioned);
        }
    };
    mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor(Settings.Global.DEVICE_PROVISIONED), false, mDeviceProvisionedObserver);
    // prevent a race condition between where we check the flag and where we register the
    // observer by grabbing the value once again...
    boolean provisioned = isDeviceProvisionedInSettingsDb();
    if (provisioned != mDeviceProvisioned) {
        mDeviceProvisioned = provisioned;
        if (mDeviceProvisioned) {
            mHandler.sendEmptyMessage(MSG_DEVICE_PROVISIONED);
        }
    }
}

Example 68 with ContentObserver

use of android.database.ContentObserver in project platform_frameworks_base by android.

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 69 with ContentObserver

use of android.database.ContentObserver in project platform_frameworks_base by android.

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 70 with ContentObserver

use of android.database.ContentObserver in project platform_frameworks_base by android.

the class BatteryService method onBootPhase.

@Override
public void onBootPhase(int phase) {
    if (phase == PHASE_ACTIVITY_MANAGER_READY) {
        // check our power situation now that it is safe to display the shutdown dialog.
        synchronized (mLock) {
            ContentObserver obs = new ContentObserver(mHandler) {

                @Override
                public void onChange(boolean selfChange) {
                    synchronized (mLock) {
                        updateBatteryWarningLevelLocked();
                    }
                }
            };
            final ContentResolver resolver = mContext.getContentResolver();
            resolver.registerContentObserver(Settings.Global.getUriFor(Settings.Global.LOW_POWER_MODE_TRIGGER_LEVEL), false, obs, UserHandle.USER_ALL);
            updateBatteryWarningLevelLocked();
        }
    }
}