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

Example 41 with ContentObserver

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

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 42 with ContentObserver

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

the class DropBoxManagerService method onStart.

@Override
public void onStart() {
    // Set up intent receivers
    IntentFilter filter = new IntentFilter();
    filter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    getContext().registerReceiver(mReceiver, filter);
    mContentResolver.registerContentObserver(Settings.Global.CONTENT_URI, true, new ContentObserver(new Handler()) {

        @Override
        public void onChange(boolean selfChange) {
            mReceiver.onReceive(getContext(), (Intent) null);
        }
    });
    publishBinderService(Context.DROPBOX_SERVICE, mStub);
// The real work gets done lazily in init() -- that way service creation always
// succeeds, and things like disk problems cause individual method failures.
}

Example 43 with ContentObserver

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

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 44 with ContentObserver

use of android.database.ContentObserver in project android_packages_inputmethods_LatinIME by CyanogenMod.

the class ContactsContentObserver method registerObserver.

public void registerObserver(final ContactsChangedListener listener) {
    if (!PermissionsUtil.checkAllPermissionsGranted(mContext, Manifest.permission.READ_CONTACTS)) {
        Log.i(TAG, "No permission to read contacts. Not registering the observer.");
        // do nothing if we do not have the permission to read contacts.
        return;
    }
    if (DebugFlags.DEBUG_ENABLED) {
        Log.d(TAG, "registerObserver()");
    }
    mContactsChangedListener = listener;
    mContentObserver = new ContentObserver(null) {

        /* handler */
        @Override
        public void onChange(boolean self) {
            ExecutorUtils.getBackgroundExecutor(ExecutorUtils.KEYBOARD).execute(ContactsContentObserver.this);
        }
    };
    final ContentResolver contentResolver = mContext.getContentResolver();
    contentResolver.registerContentObserver(Contacts.CONTENT_URI, true, mContentObserver);
}

Example 45 with ContentObserver

use of android.database.ContentObserver in project AndroidTraining by mixi-inc.

the class MainActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ListView listView = (ListView) findViewById(R.id.ListView);
    // UIにバインドするデータのカラム名
    String[] from = { Book.COLUMN_NAME_BOOK_TITLE, Book.COLUMN_NAME_BOOK_PRICE };
    // 指定したカラムのデータを表示するViewのIDを指定します。
    int[] to = { R.id.Title, R.id.Price };
    final Cursor cursor = getContentResolver().query(Book.CONTENT_URI, null, null, null, null);
    // Cursorのデータが更新されたことを通知する
    // BookContentProviderでsetNotificationUri()をしないと動作しない
    cursor.registerContentObserver(new ContentObserver(new Handler()) {

        @Override
        public void onChange(boolean selfChange) {
            cursor.requery();
        }
    });
    mSimpleCursorAdapter = new SimpleCursorAdapter(this, R.layout.list_item_book, cursor, from, to, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);
    listView.setAdapter(mSimpleCursorAdapter);
    findViewById(R.id.ADD).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            insert();
        }
    });
}