Open an activity from a Listview undetermined number of items - android

another question. Ok so I have a sax Parser for an android app, the parser obtains data from a website(title, url, data, etc...)(and I don't know how many items I'm getting from the website) so with the data obtained I created a listview, every item in the listview opens an URL, I know how to open a webview from a listview when I know the exact numbers of items in my ListView, but in this case I don't know how many items I'm getting. So my question is how do I open a new activity(my webview) from a listview without knowing how many items I received from a website?

You can use Never Ending ListView and get it working. You will probably adapter.getCount() from the Adapter that will give you the number of Items in the ListView.

Related

How would I go about displaying data from an API website and putting it in text format on an activity page?

I want to show data in a sensible form for my movie database app. The website I am using to extract data from is www.omdbapi.com. I have already created a code that extracts the title and year of the movies and displays it in a ListView form which contains items that are all clickable to another activity. I would like each activity that the ListView item clicks to to display the movie information under different headers etc.
I have been stuck on this issue all day. I'm new to coding and have no clue what most processes are called etc. Im not asking for the entire code, just instructions on what to do because I am stumped. I would be very very grateful.
Thank you.
Depending on the format the response is formatted you would either use (probably) an xml parser or a JSON parser and grab the info between specific xml tags or the specific keys within the JSON output.
There are thousands of examples of both methods. If you can get the title to display, then you already know how to get the other elements.

Dynamic Views on Android Activity

I am quite new to Android development. I managed to get data saved to SQLite database. Now, what I want is to view these data when I call viewData(). I have viewData() which shows data as a Toast as I made it as a sample. Now I need these data to show on a new activity but the number of data to show is depending on how many data is in the database at the moment, If user saved 10 items then I want all the 10 items to shown up. How can I do it?
What is the best way to show data from SQLite database on an activity. Since I don't know to use ListView, I used TableLayout on the other activity where user feed data.
I hope my question is clear.
Thanks in advance.

Using editText in ListView using ParseQueryAdapter

I am using parse api for my application.I am getting a list of items from the parse and after getting the list I wanted to populate it in the listview which would contain the following things:
ProductName(TextView)
ProductQuantity(EditText)
After getting list user would feed the quantity of every product and this information will be loaded in the new activity for adding extra information and after that it will be submitted to the server back.
I am familiar with lists but confused how can I use edittext in the listview to feed quantity of each product.
Please guide me.Thank you.

ListView updating automatically and adding only new data items

I have a listview in which a user adds his comments on a particular topic, these are then stored on server,
as multiple users may add comment i wish the listview to update periodically (say 10sec),
and add only the latest data and not the complete data as it will slow down the application.
How do i do this.?
Fix some Buffer Comments something like 50. If the number of comments is more than 50 then display the last 50 comments only. Implement pagination concept from the server. Keep some 'Load More' button or Auto Load functionality(just like in twitter or facebook) for viewing more rows in the List.

better implementation of loading data to listview from parsed data

i have response for a news site which conatins more than 50 articles.so it is taking a lot of time to parse that and after parsing i am displaying it.As a result the user will be irritated .I want to display 1st 3 artivle as soon as it parse and while scrolling the list view it will fetch next 5 and show .I think in this way our response time will be reduced.plz suggest me any idea
You should use loading listview read the given tutorial fot inplementing it the url is that.
http://androidcore.com/android-programming-tutorials/466-progressively-loading-listviews.html
I hope you have solve your problem using it.

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