The docs for ContentProvider (http://developer.android.com/guide/ topics/providers/content-providers.html) show the url format as: content://com.example.authority/table_name/13
I'm use the following code to find the authority for a particular 3rd- party content provider:
CODE:.............
Is there a way I can then get all the table names that it contains?
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Is it possible to delete all rows of a content provider's table with the content provider's delete() method? I see that you can delete a single row, and multiple rows, but if you supply no WHERE clause, will that be the same as deleting all rows?How can I accomplish leaving the table structure but emptying its contents using a content provider?
View 4 Replies View RelatedI'm writing a content provider that returns data about game sessions. This data comes from an SQLite table. However, the client that consumes it will also want summary data: total wins, current/best winning streak, and so on. I'm not sure which approach to use.
* Possible Approach 1: Do nothing, let the client calculate what it needs.
The client could step through the whole table and calculate statistics itself. However, it's inefficient to send the entire database over the content provider link if the client only wants the summaries; this may also be prone to bugs because each client has to reimplement the summary calculations.
* Possible Approach 2: Separate content URIs for summary data.
The client could ask for a URI like content://myapp/summary/totalwins and get back a text/plain stream containing the number of wins. This seems like a big hassle to implement on both ends, though. Or it could ask for a URI like content://myapp/summary and get back an XML stream containing all the summary data, but this isn't much simpler.
* Possible Approach 3: A phony table.
The client could ask for a URI like content://myapp/summary and get back a cursor over a single row, with each summary value having its own column. This would not be an SQLite cursor but a custom in-memory cursor. It seems a little unnatural to use a table metaphor when there's always exactly one row, though.
* Possible Approach 4: The extras bundle.
Cursor has a getExtras() method that returns a bundle. The client could make a request for the main URI, content://myapp/sessions, and then just look at the extras bundle instead of reading any rows. However, there's no setExtras() method, so I'm stuck with whatever bundle object SQLite puts in there - and if it's Bundle.EMPTY, I'm out of luck.
I am having a hard time understanding content providers. In the notepad example and others, the content provider never even declares its CONTENT_URI anywhere inside itself, yet the docs say to publicly declare this. It's declared in a different class. So when an activity queries a content provider with a CONTENT_URI, how does Android know which one I want. I see no link between a content provider and its CONTENT_URI declared in another class.
I also don't how to think about intents and content providers. I know that you don't call an intent on a content provider. But an activity queries a content provider without an intent, and an activity has a mimetype attribute in the manifest that would seem to tie it to a content provider.
how can i create a custom content provider like contact content provider? i know how to create custom content providers but i want to integarte to device such a way that it canbe accessed by all application installed in that device.
View 3 Replies View RelatedI'm working at an application about SQLite database. I have inserted some table in an database file. But I don't know how to get all the tables' name using code. For example, I defined a database object SQLiteDatabase dataBase = SQLiteDatabase.openOrCreateDatabase(getDatabasePath("Mydatabase"), null); and how can I get all the table names stored in the database file "Mydatabase". Counld anyone give me some code.
View 9 Replies View RelatedI'm adding TableRow objects to my view dynamically based upon how many items are in a collection I've loaded. Everything loads fine and works nearly as expected. The one issue I'm having is that the text does not wrap if it's too long for the screen, but instead goes off the side...........
View 3 Replies View RelatedI'd like to be able to read the system's SMS content provider. Basically I wanted to make an SMS messaging app, but it would only be useful if I could see past threads etc.It seems like there's a content provider for this, but I can't find documentation for it - anyone know where that is?
View 6 Replies View Relatedmy android application is handling a large database of bus passage time and we would like to allow others application to be able to display certains bus passage time. We would like to use a content provider to do that. Most example seems to be about using an SQL database, but we use some custom text file. I was wondering what would be the best way to do that. I was thinking I could use a Content Provider and implement the Cursor interface on a custom object that I would manually fill with my text data. Would this be possible ? Anyone have a better idea (excluding changing to SQL lite of course)?
View 1 Replies View RelatedCan i pro-grammatically get a list of content providers extant on the system?
View 7 Replies View RelatedWhat content providers in the cupcake android build do apps have access to?
View 2 Replies View Related1. How do i use the content provider defined to interact with an application. I mean the database defined is for use in the program only, then how can i use this content provider from another program.
2. Is there an example depicting using of content providers. How are the content providers accessed else where so tht he databases defined in it be created at run time.
Im having problems with the content provider. Im trying to create a content provider.Is my URI parse been parse correctly?this leads to my database as I want to extract data from it and show it in the list view.after which, i have to edit the manifest inserting the provider if I extend my class to ContentProvider, my database file will be kinda screwed up, is there an easier way?however, it shows the error of not having the one.two.databases to exist.
View 1 Replies View RelatedI would like to know the exact difference between Content provider and SQLiteDatabase. If we have to share our data among applications then we use Content provider, otherwise SQLiteDatabase. Is this is the ONLY difference, OR using Content Provider has something to do with performence?
View 7 Replies View RelatedI am performing hundreds of calls to a single content provider to perform various insertions, updates and deletions. After profiling my application, I have noticed that the ContentResolver class takes approx. 30ms to retrieve the corresponding content provider object for each call. Is there anyway to retrieve a reference to the content provider rather then going through the ContentResolver every time?
View 4 Replies View RelatedI have written the following content provider, but when I try to pull information from it into an array,I presume its something to do with my naming of the CONTENT_URI or something? I'm not quite sure how it works so could anyone explain a bit and spot what I have done wrong?
View 3 Replies View RelatedI want to delete Downloads provider data. And I have added permission in AndroidManifest. xml,But it doesn't work, the log gave me a pid and an uid, I guess the problem is caused by these two ids.If it's true, what can I do to solve this problem.
View 2 Replies View RelatedI'm making a media player, but my code doesn't show all my playlists and for many others it does not show any.Why doesn't the code below work completely?
View 2 Replies View RelatedThe Content Provider starts when the first applicable URI is resolved. This will make the ContentProvider run forever and there doesn't seem to be a way to stop it (such as due to inactivity etc).It would be nice if Content Provider would stop after some time so that the memory usage is reduced (An enclosing process, doesn't need to be alive if the Content Provider is not needed anymore).
View 4 Replies View RelatedDoes anyone know if there is documentation explaining the SMS content provider?
View 3 Replies View RelatedI was wondering if anyone has any information on accessing the Gmail content provider. It doesn't seem to be officially supported in the API but it looks like people are able to do this regardless. See the SlideScreen app which notifies you of new e-mail and even shows you info (sender, title).It would be great to know how this is accomplished, for example we could create a home screen widget that shows you your last few e- mails, etc.
View 2 Replies View RelatedI have a doubt about content provider. Why we use content provider? can't we use database of a application? If we talk about other application also. can't we use database of that application directly wihout content provider?
View 6 Replies View RelatedHow can I make a custom content provider in android?
View 1 Replies View RelatedI created SQLite base with 3 tables and custom ContentProvider. I had a crash on first call method query. I tried to get cursor from base via db.query(table, columns,...) it worked correctly.
The exception is android.database.sqlite.SQLiteException: no such column: modified: , while compiling: SELECT items._id, items.name FROM items ORDER BY modified ASC
The method is below:
CODE:..............
The Log is 08-13 11:49:59.471: ERROR/AndroidRuntime(5237): Caused by: android.database.sqlite.SQLiteException: no such column: modified: , while compiling: SELECT items._id, items.name FROM items ORDER BY modified ASC
When I send an SMS on my Android emulator, it goes to the content provider:
content://sms/sent
right?
So I wanted to get the last sent SMS from the content provider. So I used this Uri as you can see above, and, I used the method query, with the Content Resolver Object. And I got the cursor, and used the movetofirst() method, so I would have the last sent SMS. Check the code below. I hope it helps.
package com.sys;
CODE:...................
I am developing an application that involves some sensitive user information. I retrieve this information via a private web API. I am trying to determine the best way to get this data into my app. Right now I'm exploring creating a content provider that can do so; my hesitation is in making it secure. I want this data to be usable only by my application. Ideally, no other apps would even know it exists.
Do you have any pointers or advice on how to do this effectively and securely? Any info on content providers who's data source is a remote OAuth'd API?
I say content provider, but if that isn't the best way to do what I need, by all means let me know what else to look into.
What are advantages of using custom content provider? Why such content provider is superior of plain class that wraps SQL queries?
View 2 Replies View RelatedSince I've seen a presentation from Google IO I'm a bit confused in the question, if it's better to use content providers or databases. Or it makes no difference if I don't want to share any data with other applications.
If I've understood it right, content providers based on SQLite DBs and it's also possible that content of them is only accessable for my application.
In my application, I have created a ContentProvider. Is there a way for me to instantiate this ContentProvider when my apk is started? RIght now, the ContentProvider only instantiates when someone does a query.
View 1 Replies View Relatedwhen writing a ContentProvider I have to implement the onCreate()-method, in which I establish my database connection. But to write the changes I made to the database I have to close the database on some point. Does something like a onDestroy()-method exist for ContentProviders or is there some intent I have to listen to, which is fired before killing my process?
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