I am using Android studio with SQLite database is built-in, I am fetching some text from a table of 2 columns into TextView.
I want to use next and previous button
When the Activity starts, it loads the first record of a table in TextView but when I click on next button it should fetch next row of the table in TextView and when I click previous it should fetch the previous row of the table.
I am new to Android I searched about that but unfortunately found nothing.
try this. it could help you.
when a user enters in Activity fetch all data from Database and store that data in ArrayList at particular index . On click of Next Button get data from ArrayList according to it's index.
Related
I am using recyclerview in my app to display employee .I have radio buttons inside the cards which i need to select (i.e Present and absent) and store the date where only if employee is absent
My database to store the value would be like
Attendance Table
A_id (p.k)
Emp_id (f.k)
Dates (date value)
So i don't know how to get values of radio button from card and enter in database for that selected employee id (lets assume i have emp_id retrieve from my databases so that i can pass it while insertion of attendance data)
I have specified a mark image button above the recyclerview so that it can take the values of selected radio button(which is absent) and stored it in database .
Can anyone help me with how to get selected radio button from card view (there are many entries i.e many cards ) using onclicklistener of image
Thanks in Advance .
In your recyclerviews adapter,
in the view holder class, set on check listener for the checkbox.
inside the listener, update the dataset you are passing to the recycler view adapter.
So you now have the dataset with details about which boxes have been checked.
now write a public method,say getUpdatedData(), inside the adapter class to return the data to your main activity.
Now in your imageviews onclick listener, call this method to get the data set. Iterate through the data and you will get which buttons are checked.
Hope you get what I'm trying to say
I could show you some code, if you had posted your code.
Edited, thnx 4 de answer but wht I meant is this-have populated listview with image,Id,and name of candidates from mysql database. Made a custom adapter with android vote button, which auto generate on every candidate in the listview. So what I want is when a voter clicks on the vote button either Id, or name is sent 2 database and then increase number of votes by +1 in the vote field of the database. Android voting app using php(android and php)Any1 pliz help.
Very Simple You can do this by getting your current count from database then increment the same in your Android code and then update the database with new value that you just incremented.
in my application,there are three screen..in first window(MainActivity) one button is here..when i click the button new window is open,there is edittext for user value..and also refresh button on second scrren ..
after entering value into edittext and refresh button the value are stored into database.my problem is that how to fetch them and display on new table layout in new window..
first screen
second screen
you may use button or any event to fetch the value from the database. you can run query on the database and store the value in the cursor. as far as code is concerned for fetching the value from the database you may http://www.vogella.com/tutorials/AndroidSQLite/article.html or http://developer.android.com/reference/android/database/sqlite/SQLiteDatabase.html or http://www.androidhive.info/2011/11/android-sqlite-database-tutorial/
I ve a ListView with two TextViews.This is my result page.So I need to store the results to sqlite database.I have a save Button.When user click on that save button there should be a popup appears that contains new-user and list of existing users.When I select new user the data will save to a new table with table name as new user name.When I click an existing user the data will add to the existing table.Ho can I achieve this.? How to create a table dynamically..??
As per your query -
When your pop-up appears:
On the click of new user button - Create a form for submitting new user details.
and
On the click of existing users button - use user contacts API to add users from the contacts.
I would suggest you to save the user entries to a single table.
I am noob to android and sqlite, in visual basic working with access database you get a active x control or adodc control which helps to navigate through next records . Iam developing a app for android which i need to require to select the next column in press of button click.
ie,
Sql lite database
table1
column1, column2, column3
the preceding is the structure of table
i have a text view which displays the column name . if i press the button if column1 is selected the column2 should be displayed.
i have no idea on how to code .
prompt Help is appreciated
Query your data via a cursor
Populate that data into an object (any sort of Collection or
custom pojo) within your activity.
Write a clickListener for your button which takes in a 'current column'
value. The clickListener can then grab the corresponding 'next column' from the object you saved the data to.
The clickListener will then update your UI