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Questions tagged [contentobserver]

Receives call backs for changes to content. Must be implemented by objects which are added to a ContentObservable.

Receives call backs for changes to content. Must be implemented by objects which are added to a ContentObservable.

It has the following public meathods

Public Methods

boolean deliverSelfNotifications()

Returns true if this observer is interested receiving self-change notifications.

final void dispatchChange(boolean selfChange, Uri uri)

Dispatches a change notification to the observer.

final void dispatchChange(boolean selfChange)

This method was deprecated in API level 16. Use dispatchChange(boolean, Uri) instead.

void onChange(boolean selfChange, Uri uri)

This method is called when a content change occurs.

void onChange(boolean selfChange)

This method is called when a content change occurs.

259 questions
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how to keep content observer running even when OS has low memory

Pleas let me explain the scenario fist. I have been writing a Dropbox like android app, which automatically upload photos to the server. When user turn on upload service, it keeps running at the background as long as it can. The Service is used to…
Logan Guo
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WIndows Phone 8.1 check for new media files

Whats is the best way to check if there are any new media files that are available in the Gallery on windows phone 8.1 ? I see that there is no content observer API in WP81 like iOS7 or Android. I currently am calculating checksums for each file…
golldy
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notifyDataSetChanged() not called with stickygridheadersbaseadapter

I have an fragment in which I am using a ContentObserver class which notifies me of any change in my database table. In an Asynctask I retrieve the data from the database and add it to the adapter. Then on using adapter.notifyDataSetChanged() does…
user2781627
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contentobserver works only for insert and delete but not for an update

I am developing an app that notify the user when any SMS marked as read even if the app isn't running I simply created a contentobserver and I registered it in a service the problem is that the contentobserver runs if the new SMS inserted or…
John Donvan
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get notfication when message marked as read in android

I am a bit new to android I am developing an app that listen to URL "content://sms/" and notify me when any new SMS marked as read ( or any operation done on the SMS tables on DB) I want get notification even if the app isn't runing I tried the…
John Donvan
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notify user when any SMS modified from any SMS apps

I am devloping a simple app that notifies the user when the SMS modified from any application I am using content observer the problem is that I want to run it even if my app is off so if my app is off and some user mark a SMS as read he should get…
John Donvan
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Automatically Updating the UI

I have created a quite nice implementation of a Broadcast/BroadcastReceiver where I am pulling down information via a Service from a Web API, Broadcasting the result of the received data and then changing the UI when the OnReceive function is called…
Subby
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How to know if their is change in call log using contentOberser.

I am new to android development. I want to monitor the changes occurred in the call log.My code is fetching all the call history until the last recent call log.when I run my app it again fetches all the logs including the newest one but I want only…
user3445240
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Android sms & missed call contentreceiver not working after i read sms/missed call

Hello i want to be notified when the number of unread messages in my mobile phone changes and the number of missed calls changes, as of right now my code looks like this: private ContentObserver unreadSMSCO; private ContentObserver…
nunoh123
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ContentObserver per row implementation

After "observing" about ContentObserver I noticed that OnChange before API 16 not passing any parameters, so I decided to implement it to each row on my project (the project is downloading url's with the build-in DownloadManager) for each row I'm…
joseRo
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make ORMLite database with ContentObserver fluent

I have Contacts app and need to update my local ORMLite database with the ContentObserver. I need to check to Contacts updatings. And if it is, I need to update name of the contact if it is not stored in my local database. I have two items -…
Rikki Tikki Tavi
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How to make ContentObserver work without having application opened?

I need to have my application listen for changes in addressbook in Android. I have read that it can be done using ContentObserver and listening for changes in ContactsContract.Contacts. It seems the lifecycle of the ContentObserver ends when the…
MikkoP
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Notifying changes in datatable in android

In my android application, there is a service which inserts records into database table A, and I need to do some operation whenever any new record is inserted in the database table A. How can I continuously observe table A with a ContentObserver?…
user2011302
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Get trigger from ContentObserver

Is there a way to tell why a ContentObserver was triggered? For example, if I am monitoring SMS via the "content://sms" URI and an SMS is sent or received, is there a way to deduce, within the ContentObserver class, what the SMS type is (I know I…
Utopia025
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inserting Call Logs in android database

I want to implement a program which inserts details in database everytime the call is made or sms is sent. Should I use a broadcast receiver or content observer or Service ? what would be appropriate? I am new to android and urgently need help on…
user2011302
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