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2014/10/16 ¤W¤È 08:11:57
android Programming Glossary: cursorswhat exactly Activity.finish() method is doing? http://stackoverflow.com/questions/10847526/what-exactly-activity-finish-method-is-doing Dismiss any dialogs the activity was managing. Close any cursors the activity was managing. Close any open search dialog Also..
Why am I getting a crash when exiting my Activity? http://stackoverflow.com/questions/1376783/why-am-i-getting-a-crash-when-exiting-my-activity
Android Content Provider database leak issue http://stackoverflow.com/questions/1379200/android-content-provider-database-leak-issue was appended to the string. This allowed me to track which cursors were still open and which ones have been opened and closed in.. solution still requires that every activity closes the cursors passed to it when they are done using the cursor. Since this..
Android threading and database locking http://stackoverflow.com/questions/2647542/android-threading-and-database-locking We are using AsyncTasks to access database tables and cursors. Unfortunately we are seeing occasional exceptions regarding.. in the same method in which it's opened call close on the cursors you get from the db listen to LogCat for any complaints that..
ListView using two cursoradapters? http://stackoverflow.com/questions/3235746/listview-using-two-cursoradapters objects. Is there any way that I can combine these two cursors so that all the ListView gets the data from both android android..
RESTful frameworks for Android, iOS…? http://stackoverflow.com/questions/4097686/restful-frameworks-for-android-ios lazy loading Android Hand made approach with the use of cursors backed by a SQLLite DB intended to be very performant and best.. to be very performant and best practice of Android uses cursors Android Spring Android Rest Template Module Spring's RestTemplate..
http://stackoverflow.com/questions/4940308/im-getting-a-database-object-not-closed-exception-in-sqlite-android-but-im an open cursor lying around somewhere. Make sure that all cursors are closed before you close the database. Btw if you want to..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync changed. This serves two functions first it will cause cursors following that contenturi to update and in turn requery and..
Could not find ****.apk + android http://stackoverflow.com/questions/5273129/could-not-find-apk-android
What is the use of private Content Providers? http://stackoverflow.com/questions/5523511/what-is-the-use-of-private-content-providers CP can notify the CR which can in turn notify any relevant cursors which in turn will requery and cause the view to update. This..
Android: column '_id' does not exist problem http://stackoverflow.com/questions/5825020/android-column-id-does-not-exist-problem and simplifying things across databases content providers cursors adapters etc etc In short in order for these various components..
How to insert extra elements into a SimpleCursorAdapter or Cursor for a Spinner? http://stackoverflow.com/questions/6754973/how-to-insert-extra-elements-into-a-simplecursoradapter-or-cursor-for-a-spinner Template extras.addRow new String 2 Empty Template Cursor cursors extras cursor Cursor extendedCursor new MergeCursor cursors..
Error: ArrayAdapter requires the resource ID to be a TextView http://stackoverflow.com/questions/6822632/error-arrayadapter-requires-the-resource-id-to-be-a-textview SimpleCursorAdapters elsewhere in my program As long as my cursors remain open and i call a requery on them . Any insights into..
Android eclipse startManagingCursor Deprecated but want to support older API versions? http://stackoverflow.com/questions/9771582/android-eclipse-startmanagingcursor-deprecated-but-want-to-support-older-api-ver on API Level 11 . However the problems with managed cursors notably that they requery on an activity restart on the main..
Querying and working with Cursors in SQLite on Android http://stackoverflow.com/questions/1122679/querying-and-working-with-cursors-in-sqlite-on-android and working with Cursors in SQLite on Android Not sure if I'm the only one who feels..
http://stackoverflow.com/questions/2577084/android-read-browser-history
Is there a super simple List / ListAdapter example out there for android http://stackoverflow.com/questions/2688193/is-there-a-super-simple-list-listadapter-example-out-there-for-android listActivity on Android. I am getting really confused with Cursors and am not sure if I need Cursors and I m not sure what kind.. really confused with Cursors and am not sure if I need Cursors and I m not sure what kind of adapter to implement BaseAdapter..
Effective Android Programming Techniques [closed] http://stackoverflow.com/questions/2961049/effective-android-programming-techniques forget to free resources after use . Lot of resources like Cursors are overlooked. Free them too. Don't Use magic Numbers. values..
Android column '_id' does not exist? http://stackoverflow.com/questions/3359414/android-column-id-does-not-exist being incomplete in the statement causes confusion. Cursors are like iterators or pointers they contain nothing but a mechanism..
What does “invalid statement in fillWindow()” in Android cursor mean? http://stackoverflow.com/questions/4195089/what-does-invalid-statement-in-fillwindow-in-android-cursor-mean I had to make sure that I closed my SimpleListAdapter my Cursors and then my Database objects in that respective order in the..
Using Cursor with ListView adapter for a large amount of data http://stackoverflow.com/questions/4330565/using-cursor-with-listview-adapter-for-a-large-amount-of-data internal call the CursorAdapter makes to Cursor.getCount . Cursors in Android are lazily loaded. The results are not loaded until..
ExpandableListFragment with LoaderManager for Compatibility Package http://stackoverflow.com/questions/6051050/expandablelistfragment-with-loadermanager-for-compatibility-package work with the normal Fragment class How do I load the Cursors with the LoaderManager android android fragments expandablelistview.. API level 11. I dont have an answer to your question about Cursors and LoaderManagers though. One thing to note about my version..
Usage CursorLoader without ContentProvider http://stackoverflow.com/questions/7182485/usage-cursorloader-without-contentprovider for you. When the activity is destroyed all managed Cursors will be closed automatically. If you are targeting HONEYCOMB..
What are the benefits of CursorLoaders? http://stackoverflow.com/questions/7182920/what-are-the-benefits-of-cursorloaders are the benefits of CursorLoaders I use Cursors extensively in my app to load and occasionally write information.. data What is the benefit of a CursorLoader over managed Cursors for example And I use a ContentProvider to deal with data which..
what exactly Activity.finish() method is doing? http://stackoverflow.com/questions/10847526/what-exactly-activity-finish-method-is-doing method onDestroy is executed this method can do things like Dismiss any dialogs the activity was managing. Close any cursors the activity was managing. Close any open search dialog Also onDestroy isn't a destructor. It doesn't actually destroy the..
Why am I getting a crash when exiting my Activity? http://stackoverflow.com/questions/1376783/why-am-i-getting-a-crash-when-exiting-my-activity
Android Content Provider database leak issue http://stackoverflow.com/questions/1379200/android-content-provider-database-leak-issue I also overrode the toString method so that the ID number was appended to the string. This allowed me to track which cursors were still open and which ones have been opened and closed in the Log file. I also added a method closeForReuse so that.. cursor class and managed the ID value passed to each one. This solution still requires that every activity closes the cursors passed to it when they are done using the cursor. Since this is good programming practice it was not a concern. share improve..
Android threading and database locking http://stackoverflow.com/questions/2647542/android-threading-and-database-locking threading and database locking We are using AsyncTasks to access database tables and cursors. Unfortunately we are seeing occasional exceptions regarding the database being locked. E SQLiteOpenHelper 15963 Couldn't..
ListView using two cursoradapters? http://stackoverflow.com/questions/3235746/listview-using-two-cursoradapters executes two queries against a database and returns two cursor objects. Is there any way that I can combine these two cursors so that all the ListView gets the data from both android android listview android cursoradapter share improve this question..
RESTful frameworks for Android, iOS…? http://stackoverflow.com/questions/4097686/restful-frameworks-for-android-ios includes XML JSON Parser free licence pagination android lazy loading Android Hand made approach with the use of cursors backed by a SQLLite DB intended to be very performant and best practice of Android uses cursors Android Spring Android Rest.. with the use of cursors backed by a SQLLite DB intended to be very performant and best practice of Android uses cursors Android Spring Android Rest Template Module Spring's RestTemplate is a robust popular Java based REST client. The Spring..
http://stackoverflow.com/questions/4940308/im-getting-a-database-object-not-closed-exception-in-sqlite-android-but-im problem is not the database object it's the cursor you have an open cursor lying around somewhere. Make sure that all cursors are closed before you close the database. Btw if you want to be fancy you can create a ContentProvider use an SQLiteOpenHelper..
Why does ContentResolver.requestSync not trigger a sync? http://stackoverflow.com/questions/5253858/why-does-contentresolver-requestsync-not-trigger-a-sync to notify Android that the local database has been changed. This serves two functions first it will cause cursors following that contenturi to update and in turn requery and invalidate and redraw a ListView etc... It's very magical the..
Could not find ****.apk + android http://stackoverflow.com/questions/5273129/could-not-find-apk-android
What is the use of private Content Providers? http://stackoverflow.com/questions/5523511/what-is-the-use-of-private-content-providers . Then if you drive a change into the ContentProvider the CP can notify the CR which can in turn notify any relevant cursors which in turn will requery and cause the view to update. This is much cleaner than having to manually keep track of your..
Android: column '_id' does not exist problem http://stackoverflow.com/questions/5825020/android-column-id-does-not-exist-problem column name '_id' or '_ID' is simply a way of standardizing and simplifying things across databases content providers cursors adapters etc etc In short in order for these various components to work correctly they need a data column with unique values..
How to insert extra elements into a SimpleCursorAdapter or Cursor for a Spinner? http://stackoverflow.com/questions/6754973/how-to-insert-extra-elements-into-a-simplecursoradapter-or-cursor-for-a-spinner
Error: ArrayAdapter requires the resource ID to be a TextView http://stackoverflow.com/questions/6822632/error-arrayadapter-requires-the-resource-id-to-be-a-textview nothing or throws the above error. I have no issues with my SimpleCursorAdapters elsewhere in my program As long as my cursors remain open and i call a requery on them . Any insights into what I am doing wrong Upon request here is my layout for the..
Android eclipse startManagingCursor Deprecated but want to support older API versions? http://stackoverflow.com/questions/9771582/android-eclipse-startmanagingcursor-deprecated-but-want-to-support-older-api-ver are better solutions . You can certainly use startManagingCursor on API Level 11 . However the problems with managed cursors notably that they requery on an activity restart on the main application thread are still there on older and newer Android..
Querying and working with Cursors in SQLite on Android http://stackoverflow.com/questions/1122679/querying-and-working-with-cursors-in-sqlite-on-android and working with Cursors in SQLite on Android Not sure if I'm the only one who feels this... I find working with the sqlite api in android a complete..
http://stackoverflow.com/questions/2577084/android-read-browser-history
Is there a super simple List / ListAdapter example out there for android http://stackoverflow.com/questions/2688193/is-there-a-super-simple-list-listadapter-example-out-there-for-android that lists just the name of these objects in a scrollable listActivity on Android. I am getting really confused with Cursors and am not sure if I need Cursors and I m not sure what kind of adapter to implement BaseAdapter SimpleAdapter etc So i.. objects in a scrollable listActivity on Android. I am getting really confused with Cursors and am not sure if I need Cursors and I m not sure what kind of adapter to implement BaseAdapter SimpleAdapter etc So i guess i'm looking for three things..
Effective Android Programming Techniques [closed] http://stackoverflow.com/questions/2961049/effective-android-programming-techniques a list of Effective Android Programming techniques Don't forget to free resources after use . Lot of resources like Cursors are overlooked. Free them too. Don't Use magic Numbers. values 0 is meaningless. The framework provides very useful accessors..
Android column '_id' does not exist? http://stackoverflow.com/questions/3359414/android-column-id-does-not-exist of shorthand documentation is clear to them but for those newbies being incomplete in the statement causes confusion. Cursors are like iterators or pointers they contain nothing but a mechanism for transversing the data they contain no columns themselves...
What does “invalid statement in fillWindow()” in Android cursor mean? http://stackoverflow.com/questions/4195089/what-does-invalid-statement-in-fillwindow-in-android-cursor-mean not being set properly when the Activity starts or resumes. I had to make sure that I closed my SimpleListAdapter my Cursors and then my Database objects in that respective order in the onStop method of the Activity that is called when the TabActivity..
Using Cursor with ListView adapter for a large amount of data http://stackoverflow.com/questions/4330565/using-cursor-with-listview-adapter-for-a-large-amount-of-data The reason for the slow time in loading the adapter is the internal call the CursorAdapter makes to Cursor.getCount . Cursors in Android are lazily loaded. The results are not loaded until they are needed. When the CursorAdapter calls getCount this..
ExpandableListFragment with LoaderManager for Compatibility Package http://stackoverflow.com/questions/6051050/expandablelistfragment-with-loadermanager-for-compatibility-package Compatibility Package. Is there a way to make ExpandableListView work with the normal Fragment class How do I load the Cursors with the LoaderManager android android fragments expandablelistview android compat lib android loadermanager share improve.. from API level 8 so this should be compatible with API level 11. I dont have an answer to your question about Cursors and LoaderManagers though. One thing to note about my version of the ExpandableListFragment you have to call its method..
Usage CursorLoader without ContentProvider http://stackoverflow.com/questions/7182485/usage-cursorloader-without-contentprovider given Cursor and when it is later restarted it will call requery for you. When the activity is destroyed all managed Cursors will be closed automatically. If you are targeting HONEYCOMB or later consider instead using LoaderManager instead available..
What are the benefits of CursorLoaders? http://stackoverflow.com/questions/7182920/what-are-the-benefits-of-cursorloaders are the benefits of CursorLoaders I use Cursors extensively in my app to load and occasionally write information from and to a database. I have seen that Honeycomb and.. considerably better than previous methods of managing data What is the benefit of a CursorLoader over managed Cursors for example And I use a ContentProvider to deal with data which obviously takes Uris but how does this mesh with the initLoader..
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