Android :: LiveFolders Cursor-returned Intent Not Working
Apr 15, 2010
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?
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Apr 15, 2010
In my desperation with trying to get LiveFolders working, I have tried the following in my LiveFolder ContentProvider:Which, in all normalness, should launch the Browser and display the Google homepage when clicking on an item in the LiveFolder. But it doesn't. It gives a Application is not installed on your phone error. No, I'm not defining a base intent for my LiveFolder.logcat says:I/ActivityManager( 74): Starting activity: Intent { act=android.intent.action.VIEW dat=Intent { act=android.intent.action.VIEW dat=http://www.google.com/ } flg=0x10000000 }It seems it embeds the Intent I give it in the data section of the actually fired Intent. Why is it doing this? I'm really starting to believe it's a platform bug.update: I have filed an issue and removed the LiveFolders feature. I will include it in my app when I'll get a response either here or there that clarifies this thing. If I get the time I think I'll upload a demo app to that issue. Update: I have received a notification that the bounty is expiring in 3 days. No one wants it? Update 04/25/2010: I have updated the issue on the Android project and uploaded a test application. It would be nice if someone could test this application on a device, maybe it's such a subtle problem that it only appears on the emulator.
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Apr 22, 2009
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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Oct 18, 2009
I've got this piece of code where I count words in a dictionary and then I try to query them:
CODE:.............
The SELECT_BY_LENGTH is defined this way: private static final String SELECT_BY_LENGTH = "select word._id, word.word from word where length(word.word) between ? and ? ";
And the count works perfectly but the cursor.move(1) always returns false. I've tried to get the column count and responds with the correct count and the column names map too. I mean that the method getColumnIndex works too but I can't get any data from the cursor. All such methods fail. Am I doin' something wrong? I'm using android 1.5.
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Jun 30, 2009
I am having some trouble working with the SQLite database. I am able to create the database, add to it, and delete from it with no problem by following the Notepad examples, but I am trying to avoid duplicates and therefore want to check to see if an entry exists already.
Below is the code I have for testing to see if a game exists. I get the correct Log message of "No Games" when there are no games, as well as the correct value for column from getColumnIndex which is proven to me by the log printout telling me that column = 1.
The error message that I receive if I don't catch the exception says "Caused by android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 1
Where is Index -1 being requested if my call to getColumnIndex is returning 1? Code...
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Mar 29, 2010
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.
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Mar 21, 2010
I 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?
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Aug 5, 2009
I have an image file on my sdcard and the path to the file is: /sdcard/apps/MyPath/1249487966270.png
When a user clicks a button on my application I want to display this image to the user. Inside of the click listener I'm using the following code:
CODE:........
The button click event happens, the activity is started and then it is ignored. Nothing appears!
Watching the log through DDMS I see the following entries:
CODE:...........
What am I doing wrong? Why am I getting "Window already focused"? I want to use the default activity for viewing the image (the camera's ViewImage class). But this is not working.
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Jun 2, 2010
First of all let me say that this questions is slightly connected to another question by me. Actually it was created because of that. I have the following code to write a bitmap downloaded from the net to a file in the sd card:
// Get image from url
URL u = new URL(url);
HttpGet httpRequest = new HttpGet(u.toURI());
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);
HttpEntity entity = response.getEntity();
BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity);
InputStream instream = bufHttpEntity.getContent();
Bitmap bmImg = BitmapFactory.decodeStream(instream);
instream.close();
// Write image to a file in sd card
File posterFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/Android/data/com.myapp/files/image.jpg");
posterFile.createNewFile();
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(posterFile));
Bitmap mutable = Bitmap.createScaledBitmap(bmImg,bmImg.getWidth(),bmImg.getHeight(),true);
mutable.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
// Launch default viewer for the file
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(posterFile.getAbsolutePath()),"image/*");
((Activity) getContext()).startActivity(intent);
A few notes. I am creating the "mutable" bitmap after seeing someone using it and it seems to work better than without it. And I am using the parse method on the Uri class and not the fromFile because in my code I am calling these in different places and when I am creating the intent I have a string path instead of a file. Now for my problem. The file gets created. The intent launches a dialog asking me to select a viewer. I have 3 viewers installed. The Astro image viewer, the default media gallery (I have a milstone on 2.1 but on the milestone the 2.1 update did not include the 3d gallery so it's the old one) and the 3d gallery from the nexus one (I found the apk in the wild). Now when I launch the 3 viewers the following happen:
Astro image viewer: The activity launches but I see nothing but a black screen.
Media Gallery: I get an exception dialog shown "The application MediaGallery (process com.motorola.gallery) has stoppedunexpectedly. Please try again" with a force close option.
3D gallery: Everything works as it should.
When I try to simply open the file using the Astro file manager (browse to it and simply click) I get the same option dialog but this time things are different:
Astro image viewer: Everything works as it should.
Media Gallery: Everything works as it should.
3D gallery: The activity launches but I see nothing but a black screen.
As you can see everything is a complete mess. I have no idea why this happens but it happens like this every single time. It's not a random bug. Am I missing something when I am creating the intent? Or when I am creating the image file? As noted in the comment here is the part of interest in adb logcat. Also I should note that I changed the way I create the image file. Since I want to create a file that reflects an online file I simply download it instead of creating a Bitmap and then creating the file (this was done because at some point I needed the Bitmap but now I do it the other way around). The problems persist thought and are exactly the same:
I/ActivityManager(18852): Starting
activity: Intent {
act=android.intent.action.VIEW
dat=/sdcard/Android/data/com.myapp/files/image.jpg
typ=image/* flg=0x3800000
cmp=com.motorola.gallery/.ViewImage }
I/ActivityManager(18852): Start proc
com.motorola.gallery:ViewImage for
activity
com.motorola.gallery/.ViewImage:
pid=29187 uid=10017 gids={3003, 1015}
I/dalvikvm(29187): Debugger thread not
active, ignoring DDM send
(t=0x41504e4d l=38)
I/dalvikvm(29187): Debugger thread not
active, ignoring DDM send
(t=0x41504e4d l=64)
I/ActivityManager(18852): Process
com.handcent.nextsms (pid 29174) has died.
I/ViewImage(29187): In View Image
onCreate!
D/AndroidRuntime(29187): Shutting down VM
W/dalvikvm(29187): threadid=3: thread
exiting with uncaught exception
(group=0x4001b170)
E/AndroidRuntime(29187): Uncaught
handler: thread main exiting due to
uncaught exception
E/AndroidRuntime(29187):
java.lang.RuntimeException: Unable to
start activity
ComponentInfo{com.motorola.gallery/com.motorola.gallery.ViewImage}:
java.lang.NullPointerException
E/AndroidRuntime(29187): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
E/AndroidRuntime(29187): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
E/AndroidRuntime(29187): at
android.app.ActivityThread.access$2200(ActivityThread.java:119)
E/AndroidRuntime(29187): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
E/AndroidRuntime(29187): at
android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(29187): at
android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(29187): at
android.app.ActivityThread.main(ActivityThread.java:4363)
E/AndroidRuntime(29187): at
java.lang.reflect.Method.invokeNative(Native
Method)
E/AndroidRuntime(29187): at
java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(29187): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime(29187): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
E/AndroidRuntime(29187): at
dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(29187): Caused by:
java.lang.NullPointerException
E/AndroidRuntime(29187): at
com.motorola.gallery.ImageManager.allImages(ImageManager.java:5621)
E/AndroidRuntime(29187): at
com.motorola.gallery.ImageManager.getSingleImageListByUri(ImageManager.java:5515)
E/AndroidRuntime(29187): at
com.motorola.gallery.ViewImage.onCreate(ViewImage.java:1801)
E/AndroidRuntime(29187): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
E/AndroidRuntime(29187): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
E/AndroidRuntime(29187): ... 11 more
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Aug 16, 2010
In my application i have created pending intent which calls another activity (after 20mins of alarm off) with the help of alarm manger. It should happen each time for each new pending intent or when I call that activity. But when i create one pending intent and after few mins again create new pending intent ,then the last one overlap the other previous pending intents and start specified activity only for ones for the last pending intent.I want that each time i create any pending intent it should start specified activity after 20 mins of it's alarm off time.How it can be done ?
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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?
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Dec 12, 2009
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I have this code on my Android phone.
URI uri = new URI(url);
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HttpClient client = new DefaultHttpClient();
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I have a asp.net webform application that has in the page load this
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Nov 1, 2010
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May 6, 2009
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?
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Nov 5, 2010
I 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
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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?
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Sep 21, 2010
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Currently it is rooted stock 2.1 and has ryanza lag fix applied.
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Mar 21, 2012
I've a problem with a query in sqlite3.
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Just a heads up for anyone returning a defective Inc. that see a mysterious five hundred and some dollar charge from Verizon.
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Jun 23, 2010
In my Android app I am calling a URL for fetching images and that URL is also fetched dynamically. Sometimes what happened is that the server returns the path of the image but actually there is no image so can we put some kind of validation.
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