Android :: Custom Content Provider (java.lang.Verify)
Mar 9, 2010
I created a custom content provider in one android application following all guidelines from developers.android.com and an activity in same application with an edittext and a button. when ever i enter any integer value and click on the button, using custom content provider am inserting value to a sqlite database this worked fine. but when i created another application and tried to access the custom content provider by importing custom provider class am getting the following exception:
W/dalvikvm( 418): VFY: unable to resolve static field 29 (CONTENT_URI) in Lcom/ mypack/android/mycontentprovider/MyProvider; W/dalvikvm( 418): VFY: rejecting opcode 0x62 at 0x0047 W/dalvikvm( 418): VFY: rejected Lcom/mypack/android/ appwidgetsettingstest/Test Activity;.onCreate (Landroid/os/Bundle;)V W/dalvikvm( 418): Verifier rejected class Lcom/mypack/android/ appwidgetsettings test/TestActivity; W/dalvikvm( 418): Class init failed in newInstance call (Lcom/mypack/ android/ap pwidgetsettingstest/TestActivity;) D/AndroidRuntime( 418): Shutting down VM W/dalvikvm( 418): threadid=3: thread exiting with uncaught exception (group=0x4 001aa28) E/AndroidRuntime( 418): Uncaught handler: thread main exiting due to uncaught e xception E/AndroidRuntime( 418): java.lang.VerifyError: com.mypack.android.appwidgetsett ingstest.TestActivity E/AndroidRuntime( 418): at java.lang.Class.newInstanceImpl(Native Method ) E/AndroidRuntime( 418):.......
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Jul 3, 2010
I'm facing a recurrent problem that I don't know why it is happening. It happens all of a sudden. I didn't do anything different from what I was doing before. I'm using these tabs: http://developer.android.com/resources/tutorials/views/hello-tabwidget.html. When I open one of the three tabs (Class name = Tab1), this problem comes out. Before, this error came out after clicking all of the tabs.
A part of the stack trace: Could not find class 'org.android.catsMobile.packageName.Tab1$OrderAdapter', refereced from method org.android.catsMobile.packageName.Tab1.onCreate [...] threadid=3: thread exiting with uncaught exception (group=0x4000fe70) java.lang.VerifyError: org.android.catsMobile.packageName.Tab1.
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Sep 7, 2010
I have one android project. I have one class file of about 6000 lines when i tried to add more code it shows the java.lang.verifyerror.
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Oct 20, 2009
i get following error, if i test my app on a real android phone. On the emulator, my app works fine.
W/dalvikvm( 321): threadid=3: thread exiting with uncaught exception (group=0x4000fe70) E/AndroidRuntime( 321): Uncaught handler: thread main exiting due to uncaught exception E/AndroidRuntime( 321): java.lang.VerifyError: de.stefandahmen.android.TourList E/AndroidRuntime( 321): at java.lang.Class.newInstanceImpl (Native Method) E/AndroidRuntime( 321): at java.lang.Class.newInstance (Class.java:1472) E/AndroidRuntime( 321): at android.app.Instrumentation.newActivity(Instrumentation.java:1097) E/AndroidRuntime( 321):.....
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Jul 23, 2010
I have a build a android application which works fine. After that, I create a jar file from that project for other applications to use. I added the jar as external jar for other application. It can compile correctly. However, when it runs, I always get the error "Jave.lang.verifyError".
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Jan 11, 2010
I'm using the Android Development Toolkit (ADT) in Eclipse Galileo. I've created a project in which to develop some util classes, which I intend to use in several upcoming Android projects. However, when I come to use these util classes (deployed as a jar and included in the Android project as a user library), I get a java.lang.VerifyError during the startup of the emulator. Can I force the verification of these library files, or do I need to include them as part of the Android project, and not as an external jar?
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Mar 11, 2010
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.
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Jul 23, 2010
I'm making a http get request like this:
CODE:.........................
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Sep 9, 2010
i am getting this error java.lang.NullPointerException at android.content.ContextWrapper.getPackageManager when am trying to get list of all installed applications on the device. Well let me explain what my program is doing. I have a server that starts when my application is started, and the client pings the server and asks to get a list of installed applications. The Server then asks the getPackageManager() and gets all the installed applications. But the getPackageManager returns the nullpointerexception. The Server is written in a java environment and is started from my android application. Could someone please tell me what am missing and why i am getting this error? hanks alot!!!Please find the code...
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Jul 20, 2010
when I try to attach a file to an email, I get a java.io.FileNotFoundException: No content provider logcat output. If anyone could tell me what I am doing wrong or what I should do instead, that would be great.Thank you.
This is how I add the files to the email..:
CODE:...............
And here is the entire logcat error output:
CODE:..................
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Mar 1, 2010
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.
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Jun 8, 2010
How can I make a custom content provider in android?
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Nov 2, 2010
What are advantages of using custom content provider? Why such content provider is superior of plain class that wraps SQL queries?
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Jan 27, 2010
The content provider / resolver APIs provide a complicated, but robust way of transferring data between processes using an URI and the openInputStream() and openOutputStream() methods. Custom content providers have the ability to override the openFile() method with custom code to effectively resolve an URI into a Stream; however, the method signature of openFile() has an ParcelFileDescriptor return type and it is not clear how one might generate a proper representation for dynamically generated content to return from this method. http://stackoverflow.com/questions/1542008/returning-a-memory-mapped-inputstream-from-a-content-provider
Are there examples of implementing ContentProvider.openFile() method for dynamic content in the existing code base? If not can you suggest source code or process for doing so?
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Dec 9, 2009
Not sure of the absolute utility of this but seems as though it should be possible and useful. Can you extend ContentProvider to provide URIs representing new queries (i.e., joins across multiple tables not specified by existing URIs) for an existing system database? The alternative seems to be that I need to write a series of cursor queries then join them -- seems like a lot of unnecessary code duplication.
I have been trying this for the contacts database as an exercise, but no love so far. The crux seems to be that I cannot open a database in another package during the setup phase. Am I just completely out in left field here? It's possible as I am new to both Java and Android.
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Oct 8, 2009
I've been struggling with what seems like a straight forward issue for some time now, and any suggestions would be appreciated.
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Aug 8, 2009
Java packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
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Feb 11, 2009
I'm having some problems porting a Java application to work in Android platform. I detected an incompatibility problem between java sun and Adroid sdk in java.lang.Class. I oberved that: public Field[] getFields() Returns an array containing Field objects describing all fields which are defined. That's array is sorted as attributes are declared in the main Class in sun jdk. For example, next Class is defined as: public class Example { public boolean stop; public int atr1; public String name; ....
}
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Dec 29, 2009
I'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?
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Jun 4, 2010
my 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)?
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Oct 19, 2010
I have an app that runs perfect on 2.2 and 2.2 but always getting VerifyError on 1.6 while startup, I don't think that my app cannot run under 1.6 because I don't call any APIs that don't support 1.6. I'm really confused, does anybody has the same issue?
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Jun 16, 2010
I have the following code which gets call in my main activity's onCreate method
public static ErrorReporter getInstance(){
if (instance == null){
instance = new ErrorReporter();
}
return instance;
}
Only on android 1.5 calling the above method causes java.lang.VerifyError. I am not able to figure out why this is happening.
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May 26, 2009
Can i pro-grammatically get a list of content providers extant on the system?
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Sep 2, 2009
What content providers in the cupcake android build do apps have access to?
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Jan 21, 2009
1. 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.
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Jul 1, 2010
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.
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Sep 10, 2009
I 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?
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Feb 2, 2009
I 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?
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Dec 21, 2009
I 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?
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Jul 14, 2009
I 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.
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