I have successfully retrieved all messages from inbox but I want only unread messages . I have also apply in the query as read=0 which gives unread SMS but it can’t retrive unread messages it retrieves all messages. Answer Change your query arguments like this You are passing selection where clause for …
Tag: android-sqlite
Cursor should only select cells with a different value
I want, that my cursor is moving to the next cell with different content and I want the cursor to skip over all cells that have a value that already existed. For example we have the column: Beer, Car, Car, House, Beer, Tree (in KEY_AREA) The cursor should select: Beer, Car, House, Tree and skip 1 Car and 1 Be…
How to automatically update ListView with custom adapter when item is deleted from database
I created a ListView for which I implemented a custom adapter. Additionally I connected it to a SQLite database, which contains the content for the ListView. I have one ListView with several items. Every item consists of a TextView and an ImageView which functions as a button. When the user clicks the ImageVi…
Android and SQLite: “nested” getReadableDatabase
In my Android app I use the following code to access db: method1 and method2 can be called independently from outside the class. In addition, there are situations where method1 must call method2. In method2 I need a db instance, so I should call SQLiteDatabase db = helper.getReadableDatabase();. This is ok if…
How to get row cursor with primary key android
I have a table with the following I am trying to get all the data at a given rowid I get an error I did populate the table. How do I return a cursor based on the position of entry. Answer How do I return a cursor based on the position of entry First, your method getRowCursor() should return a
How can I store data with nested object data in Android? [Room]
I have a high dimensional dataset that it provides with a json structure (about 3000 objects, an array of each object and dozens of objects in that array.) I read them with the help of the volley library. I want to save this data. in the database and access it easily. how can I do it I couldn’t find exa…
How to update the value of the existing columns in SQLite android ? (not able to do in my project)
I am trying to update the existing column of my table but am not able to do so…. There are no errors it is just not getting updated. My code are there below Calling the function by passing value a is the _id in which i want to change and i is the value which i want to insert. The
save text file in sqlite android
I want to save text file in sqlite android but it is giving an error android.database.sqlite.SQLiteConstraintException: NOT NULL constraint failed: at line long result = db.insert(TABLE_NAME,null,cv);. The path gives this in log Download/Link_on.txt and the readFile(path) returns [49, 10, 48, 48, 58, 48……
Why my bookmarked words doesn’t saved to sqlite database if i want to add them from another fragment?
The main problem is that when i add bookmark codes from direct recyclerview it works perfectly fine but when i add those codes to another fragment it just only show a toast that bookmark is added or deleted but that bookmarked word doesn’t show in favorite list. Here is my Database codes My RecyclerView…
Implement favorites list with room library
I want to implement a list of the user’s favorite news for a news app using the room library, but the app crashes Thank you for your help (: DataBase: I could not put the code, I used the photo: enter image description here Dao: AdapterNews: Erro: enter image description here Answer Try to use thread or…