i want to populate a List in an HTML5 File (displayed within a WebView) with data from Android Code (for exmaple from an ArrayList). Can anyone please tell me how or if this is possible.
Thanks in advance
Thommy
With a WebView you can simply:
webview.loadUrl("javascript:YOURJAVASCRIPTCODE");
Your javascript code could be something like:
document.getElementById('txtField1').value = "test";
Read this:
http://developer.android.com/guide/webapps/webview.html#BindingJavaScript
You can expose anything from your Android code. If you return some JSON (array or object), you can build your list (or anything else) using some javascript.
Related
The question might seem incomprehensible just from the title alone so let me elaborate on what I mean. From what little I've dabbled in HTML and JavaScript, you could add HTML lines to the HTML file from using a Javascript function in the script.js file and it would add those HTML lines you've written into the function to the HTML file on execution and it would work as if you've written it in the HTML file to begin with. That was my understanding of how it worked, at least, if I'm wrong on my assessment feel free to correct me on that matter.
Anyway, I'm wondering if we could do a similar thing in Android Studio where we can use a Kotlin function to add an XML line/attribute/command like 'app:srcCompat="#drawable/whatever"' to an XML file.
Of course the question doesn't come from a mere sense of wonder. I currently have an application with a fragment that's supposed to get some football teams from the Room database and display them in CardViews using RecyclerView. In those cards, the team's name and their logo should be displayed. I don't have logos as image files in the Room database itself, however there is a column that stores the names of the drawable files in which the team logos are stored. (For example: Team A's logo is stored in the drawable's as 'teama.png' and it has 'teama' stored in a column.)
In the Adapter class of the RecyclerView, I want to use the bind() function to put the name and the logo on the cards. What I'm expecting to do (related to my question overall) is using a function that can take a string parameter ("app:srcCompat="#drawable/teama"") and puts it to the XML file of my team item. Is this possible? I'm open to other solutions as well and can post code if requested.
Thank you for your answer beforehand.
Is there a way to add XML code to an XML file from a Kotlin code?
Yes, but not in the context of what you are asking.
What I'm expecting to do (related to my question overall) is using a function that can take a string parameter ("app:srcCompat="#drawable/teama"") and puts it to the XML file of my team item. Is this possible?
No. You cannot modify the content of a resource XML file at runtime.
From what little I've dabbled in HTML and JavaScript, you could add HTML lines to the HTML file from using a Javascript function in the script.js file and it would add those HTML lines you've written into the function to the HTML file on execution and it would work as if you've written it in the HTML file to begin with.
JavaScript, run in the browser, does not modify the HTML file on the server. It modifies the DOM: the parsed representation of the HTML that is used by the browser to render a UI on the screen.
Similarly, in Android, you will need to update the View objects — created from parsing that resource XML file — to reflect your desired name and logo. This approach is covered in books and courses on Android app development. FWIW, here is a free book of mine on the subject.
Till now this technology is not available and if it is available it's not that famous and in use
I have some sort of simple mobile shopping section inside my app. I get XML or JSON from server and want to put name/description/price/currency/etc to corresponding views. I really don't want to parse all XML myself and prefer to use some syntax like ["products.product.price" -> R.id.priceTextView] to map xml/json data to Android views.
I googled a little bit but failed to find a good way to do this. Do anybody know some lib or maybe Android class doing that?
What would the best approach to :
get html codes by calling url and displaying it in some views
if i would be editing the values against title tag, it must be automatically updated in the url link?
How to do this?
Check out the JSoup cookbook.
http://jsoup.org/cookbook/
This has a lot of good information in it and should be able to answer most of your questions.
You are probably looking for something along the lines of this: http://jsoup.org/cookbook/input/parse-body-fragment
I have list of records in xml format from my local host "http:localhost:810/Service1.svc/leb/GetAllCustomers"
Can I call this to android and list it in Textview or Spinner or in EditTextView or in any of the controls in android?
You should parse this xml file using SAX parse or Dom Parse in android and collect date in arrays/list/map according to your requirement here i am post some link to you get more information form there and get your ASAP.
http://www.androidpeople.com/android-xml-parsing-tutorial-using-saxparser
http://www.androidpeople.com/android-xml-parsing-tutorial-%E2%80%93-using-domparser
I hope this is very helpful to you.
Some links here for you.
1) Multithreading for Performance
to help you understand, how to download a file (example shows downloading an image) via AsyncTask.
2) Working with XML in Android
to help you parse your xml. Check these out. Good luck!
Yes you can do that.
Use Intent which takes URL as an argument.
In the URL you can mention the location/URI of your source.
Then, you can parse it to a string and store it.
Later, use ArrayAdapter to populate.
I can get you code if this is what you are trying to do.
I need to get data from an XML file in Android. On the iPhone environment, my code is:
NSURL *thisURL = [[NSURL alloc] initWithString:#"http://www.xxx.com/file.xml"];
NSArray *myArray = [[NSArray alloc] initWithContentsOfURL:providerURL];
myArray is now an array of dictionary items initialized with contents from file.xml.
Is there any way to do this in Android? Can someone point me to doc or sample code?
I'm new to the Android environment and just need some direction.
Thanks,
Kevin
See Working with XML in Android for a variety of methods for dealing with XML. Which method to use depends on how big your XML is, and what you want to do with it. '
I'm not sure how it makes any sense to turn XML into an array, so no, none of the methods do that. If you want something similar to that, use Json instead of XML.
After a bit of research, it appears to me that using the Simple XML Serialization framework is going to be my best bet, especially since I do have a relatively simple XML file to read. The result will be a 'list' class with several 'entry' classes which seems like a viable way to handle this...probably better than having an array of classes as was done in the iPhone app.