I know that in a content provider "query" method one can indicate to the cursor a "notify uri". The cursor knows what this uri is. Does the cursor uses this uri to update itself? Does it result in a call to "query" method of the contentprovider for a query. How does the cursor know what the additional where clause arguments are?
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I'm trying to get a LiveFolder implementation working, but I can't seem to be able to. I'm able to create the ContentProvider and the items show up nicely. However, I can't seem to be able to return a proper Intent in the Cursor from my ContentProvider to launch my activity.
Relevant bits of my code:
CODE:.................
From the provider (this is how I create the Intent I pass in the LiveFolders.INTENT column):
CODE:...................
When I click on an item I get an "Application not installed on your phone" error. Logcat says:
CODE:..................
Basically, for some reason, the Intent I return in the cursor is passed as the data of the actual intent that it tries to fire, which has a VIEW action. Why is this happening?
Have been using a SQLite database, Theres a situation where i have a list which displays all the "name" field data of a table "table1". Now i have a button to insert data in "table1". The list is populated using a simple cursor adapter which is passed a cursor "cursor1" populated with the data. "cursor1" is prepared using the SQLite query - "SELECT * FROM table1". Now the moment i insert data, i need to update the list too.
My question is- will the Adapter sense the database change automatically (i guess not)?
using cursor1.requery() is correct or should i use cursor1 = db.query("table1", null, null, null, null, null, null);
I am making a very simple dump and display app. I would like to see my newly entered data displayed on the list found on the first tab. But I don't know where to place requery();
Here is the code for the first tab. (Displays the data from DB.)
CODE:.........
I have tried doing (pseudo codes only)
CODE:........
And
CODE:............
But BOTH don't work!
The structure of some of my activities is a simple ListView with a custom CursorAdapter. The cursor is created in onCreate() on the activity from a SQLite database. The problem is that querying the SQLite database can be quite slow at times with lots of data (and let's assume I've already optimized the sql query as much as possible). Because it occurs in onCreate() on the UI thread, I get ugly black screens when opening the activity, which sometimes turn into ANRs, on a slow phone like the G1. I want to load the cursor in a background and show "Loading.." on screen while doing so. I saw AsyncQueryHandler used extensively in the framework, but this seems a solution geared more towards Content Providers and not application-local SQLite databases. I then thought of trying to load the cursor in a background thread, but realize that this might be problematic, as the CursorAdapter should be instantiated in onCreate() and should take a cursor as a parameter. The latest thought I had was to instantiate an empty MatrixCursor in onCreate() and pass that to the cursor adapter, while kicking off a thread/TimerTask to query the database. Then, on database cursor load, call cursorAdapter.change Cursor to the properly filled cursor. This doesn't seem very elegant and seems quite wasteful, however.
View 10 Replies View RelatedI get records from the system by quering a ContentResolver. I maintain the order of the items in the database. So I want to display the items in the order taken from my database.
How do I merge these two informations?
I am looking after an alternative way now. As what I ideally want is:
Get order of contacts by a custom order held in my database (this involves joining CR with my DB cursor, and doing an order by, later seams it's not possible with CursorJoiner) but there is more, if the join is not unique I want to sort by contact's name as last measure
Which is impossible using Cursor and Joiners, because of the missing feature of order bys, also I need to return a Cursor, as I will be using the in an ExpandableList
Also this translated to TSQL it would look like
select * from contactsdata
left join category on contactsdata.catid=category.id
order by category.pos asc, contact.display_name asc
So I am looking now after an alternative. I have in mind to load in a temporary DB table all data from CR, then do the query on the temporary table where I can join tables and do order bys? How does this sound to you?
I would like to have a running counter (e.g. from 10 Minutes down to 0) in an List item. I have a cursor adapter and in a spezific field the time How long the counter should run.
I tried it with a background service which calls every minute a requery to the cursor to refresh the counter in the list item.But now I have a conflict with other parts in the list which are also depends on cursor requeries.best practice for a running counter in an cursor adapter without calling requery?
How can i use GROUP BY clause to access database in ContentResolver.
View 1 Replies View RelatedI would like to limit the results to those whose KEY_HOMEID is equal to journalId.
View 1 Replies View RelatedAndroid's API provides a clean mechanism via SQLite to make queries into the contact list. However, I am not sure how to limit the results..
View 3 Replies View RelatedRecently I updated my Nexus One to Froyo (2.2) and I've noticed some significantly different behavior with SQLite. For example, I had been using a subquery (returning string data) as part of an IN clause, and the subquery portion no longer appears to function correctly. I've attached an example SQL query working with the contacts database below (Direct query shown for illustrative purposes only):
SELECT _id FROM data WHERE display_name IN (SELECT display_name FROM contacts); Up until Android 2.1 this was not a problem. After the update however, this returns an empty record set unless I run the subquery separately, surround each of the resulting values in single quotes and append those values directly into the IN clause. I have noticed this loss of functionality in multiple applications I'm working on, but I should note that it does appear to work when the results would be numeric rather than string based.
I'm trying to query a word, for this Im using the db.query method. But I want use a where clause, I've done like this on my code, but, the emulator returns an error...
View 1 Replies View RelatedI have class A in which I have a method openfileConnec().
It was written like the below:
CODE:...............
Now I come to class B where I will call this method like the below:
CODE:.............
I was asked a question in an interview as follows:
Why does the method have a throws Exception in its declaration? Is it that on of the methods called in the implementation throws the base class exception? Also If we get a exception during calling the method (fileConnect( )) control goes to catch block. After executing catch where should the control go, what should be sent to base case?
I have a .Net Web Service which returns a single integer value. When i call upon it from my application, no value is returned. Nothing at all really happens. I set up breakpoints and watched it's progress and it seems the problem is coming from when i get to this line:androidHttpTransport.call(SOAP_ACTION, envelope);
I have a hunch that my URL string is the problem. I've tried replacing the "localhost" in my URL string with my local and network ip with no luck. Whenever i replace the localhost with the ip in my browser i get Server Cannot Access or Unable to Connect pages. Does anyone know a solution to this problem?
In my application during downloading of images, for some of the images i got the error like
D/skia (374): --- decoder->decode returned false
I'm writing a Music application and I have already gotten the album arts. However, they came up in various sizes. So, how do I standardized the size of the returned bitmap ?
View 1 Replies View RelatedI know how to get the calculated GPS position via getLastKnownLocation (). As tests show, this function really always returns the last known location, so it doesn't matter if there is a gps fix available.
How can i check if the returned location is reliable? I tried it with getAccurracy(), but this function even returns a accurracy although no gps fix is availavle (anymore). Is there a possibility to get gps dop values? Used SDK is 1.6.
How do I get a refund for a purchased app on a returned phone?I purchased a Samsung moment on Tuesday, December 1st and in my exuberance purchased Docs to Go Pro 2 for $10 during the one week sale. I ended up returning the phone a week later due to the phone calling 9111 when i unlocked it and the BATTERY life being NO WHERE NEAR good enough.Is there any way I can get a refund for the money I spent?What about if i go get a Hero now? would the app download for free due t my Google account and Google checkout?Any help would be appreciated.
View 1 Replies View RelatedI have this code on my Android phone.
URI uri = new URI(url);
HttpPost post = new HttpPost(uri);
HttpClient client = new DefaultHttpClient();
HttpResponse response = client.execute(post);
I have a asp.net webform application that has in the page load this
Response.Output.Write("It worked");
I want to grab this Response from the HttpReponse and print it out. How do I do this?
I tried response.getEntity().toString() but it just seems to print out the address in memory.
For my current application I collect images from different "event providers" in Spain.
However, when downloading images from salir.com I get the following logcat output: 13970 Gallery_Activity
I Fetching image 2/8 URL: http://media.salir.com/_images_/verticales/a/0/1/0/2540-los_inmortale... 13970 ServiceHttpRequest
I Image [url] fetched in [146ms] 13970 skia D --- decoder->decode returned false
Searching for that error message didn't provide much useful results.
I have a list and i want to check is the view is returned so i can call loadingAnimation.start() to make a imageview insite listview animate
Let me tell you what i mean.. code...
I'd like to know if there is already a way to know from a given set of markers, the zoom I should apply to the map or do I have to do it my self? (this depends on the resolution so i expected to find it in MapView because it knows its boundaries.
View 4 Replies View RelatedI am getting following encoded html as a json response and has no idea how to decode it to normal html string, which is an achor tag by the way.
View 2 Replies View RelatedI want to run this query in Android Application :
code:.......
My DB schema
code:..........
Here is the function -
code:...........
In android, most event listener methods return a boolean value. What is that true/false value mean ? what will it result in to the subsequence events ?class MyTouchListener implements OnTouchListener {@Override public boolean onTouch(View v, MotionEvent event) {logView.showEvent(event);return true;}Regarding to the above example, if return true in onTouch method,I found every touch event(DOWN,UP,MOVE,etc) has been captured according to my logView. On the contrary,if return false, onely the DOWN event been captured. So it's seemd that return false will prevent the event to propagate. Am I correct ?Furthermore, in a OnGestureListener, many methods have to return a boolean value too. Do they have the same meaning ?
View 3 Replies View RelatedTelephonyManager.getNetworkType() returns one of the constant values.It appears that the constant values have an integer order, by possible bearer link speed.I know using constant values used in the following manner is generally bad,however could one use this to determine a basic cutoff for application functionality and have it work between API levels? (in API-v1 there was nothing above 0x03)if( telephonyManager.getNetworkType() > TelephonyManager.NETWORK_TYPE_EDGE ) return "3G! party on!";else if( telephonyManager.getNetworkType() > TelephonyManager.NETWORK_TYPE_UNKNOWN )}
View 1 Replies View RelatedSuppose you have a download service that downloads files asynchronously. For each download intent received it will put the URL of the file to download and the start ID into a job queue and return START_REDELIVER_INTENT. A worker thread then processes that list and calls stopSelf with the start ID it just processed. My question is: If the service's process gets killed and the service restarted, will the service receive all the intents (with the URLs) it hasn't called stopSelf on before it was killed or does the service receive the last intent only? It seems the API docs are ambiguous on this.
The docs say
"if this service's process is killed while it is started [...], then it will be scheduled for a restart and the last delivered Intent re- delivered to it again [...]", indicating that only the last intent gets redelivered (which would be terrible in this use case), but they also say "The service will [...] be re-started if it is not finished processing all Intents sent to it (and any such pending events will be delivered at the point of restart)."
I am seeing the exception in 'adb logcat'.But I don't know if it is caused by my application or android platform.Can you please give me any idea how to troubleshoot this exception?
View 3 Replies View RelatedI have a widget that contains 4 buttons to show 4 stock prices, each of them will launch into the same activity Quote.class to show stock details. In onUpdate(), it will set up the pendingIntent with extras with stock symbol. After I hit button A, it goes to Quote activity that shows stock A. Then I hit the BACK button to the homescreen, Quote activity calls onDestroy() and when I hit button B, stock B will show properly. However, when i hit HOME button after it shows stock A, the Quote activity only calls onStop without calling onDestroy(), then as i hit button B, it will call onStart() and it shows the same instance that shows stock A.
CODE:............
Originally I thought adding a flag in the Intent should solve this problem. But I have tried
i.setFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK or FLAG_ACTIVITY_NEW_TASK or FLAG_ACTIVITY_NO_HISTORY), none of them makes any difference.
So is there any ways to make it work? How can i remove the history stack from HOME button? How can I call onCreate in Quote activity and get new extras when i hit button B?
I've been having an issue with my headphone jack and finally called into Tmobile tech support.
They are going to be sending a replacement phone, so I would like some help on how I can get my current phone ready to be sent back to them.
Currently it is rooted stock 2.1 and has ryanza lag fix applied.
Most of my files are on the SD.
I know I need to unroot, how would I proceed to do that and would unrooting get rid of the lag fix?