Shockingly there doesn't seem to be any questions that successfully answer this. I am trying to change the font in the AutoCompleteTextView. How can I accomplish this? I'm assuming this would involve creating a custom class that extends AutoCompleteTextView but how would I do this specifically?
You can implement an Adapter and use the setAdapter(...) method to apply it. Adapters are used to serve up and cache views for efficient scrolling in Android. The AutoCompleteTextView will call the getView(...) method on your Adapter giving it the position that it wants. You create or modify a view with the content at that position (in this case the text) and return it.
Here's a good example article of it:
http://www.codeofaninja.com/2013/12/android-autocompletetextview-custom-arrayadapter-sqlite.html
You might just want to scroll to the adapter part.
You are showing the drop-down list. You control the font yourself when your code creates your rows in your Adapter implementation used for suggestions. Override getView() and adjust the font in your TextViews in the row layout.
Related
I would like to dynamically change the color of the text shown inside a ListView. I've found this discussion but it's not what I'm looking for. I will explain my situation. Upon onCreate, my app calla an asynctask that builds a ListView with some string downloaded from a server. Then checks if inside a custom folder there exists a file with a name equal to one of those strings. If yes, I would like to change the color of the text corresponding to the existing file. How can i do that?
You should use custom list adapter, for example you can extend BaseAdapter for that purpose. Then you should define something like model of your list data item and when model changed, you can call adapter.notifyDataSetChanged() and BaseAdapter.getView() should draw changed views as you want: with different colors or something else.
You would better read some articles about ListView and Adapters, like Vogella's Android ListView - Tutorial
Or you can ask me here if you don't understand something :)
What's the easiest way to create separate preferences for each item in an Android listview? I found this question, but it's kind of general. Could anyone be more specific, possibly show a quick example?
If you want to do this, you should write some code into your adapter getView method.
You can check the position (with an if-clause) in the method and add a custom desgin/layout depending on the position.
If you use a LinearLayout or RelativeLayout in your ListView item XML you can fill this programmatically in the getView method with all the widgets (edittext, checkbox, etc) you need.
I have several ListActivities, in which I need to set up, for each row, cusom typeface I am loading from assets. In TextView this is not a problem, but I am facing problem of accessing my list items. ListActivity seems to not have method *.setTypeface(), so I have come to the dead end. Anyone had faced same problem before?
How are you populating your ListView? Most likely you are using one of the generic ListAdapter implementations which seem to only provide bare-bones functionality and not much else.
My suggestion would be to design your own View to use in your ListView along with your own ArrayAdapter implementation that configures type face etc. from within it's getView(...) method. You'll find quite a few tutorials on the subject if you google "custom android ArrayAdapter".
You do not set the type face on the listview. You need to set the typeface on a textview. So use a custom array adapter for your listview, inflate your own custom view which would contain a textview, and then set the typeface on that text view.
To go along with what Nick said, google "custom android arrayadapter"
Does anyone have a good tutorial for implementing onItemClick() for a ListView populated by a custom ArrayAdapter?
I'm struggling with how Android is recycling views, and how to affect the layout of the selected view (which is a RelativeLayout). The way I've implemented it, I'm just doing a simple background colour change, but everytime I choose a row, when I scroll the ListView there are other off screen items selected too.
Any ideas?
Have a look to this answer. Custom code of ArrayAdapter.getView() (where view recycling is done) might be useful to you, I was trying to achieve something similar and it worked for me at last :)
You can find lots of good examples of the custom Listview with Adapters.Some of the Examples are listed below:
(1)custom-listview-android
(2)android-custom-listview-with-image-and-text
(3)Custom Array Adapter
I want to do something like mylistview.setElementsofView(0).getElementById.setColor("black");
currently the only way I know of doing this is setting up a custom list view adapter, setting up constructors, do conditional checks to see if view is populated, then do stuff in that view
this seems very convoluted, when other parts of the listview are so easily accessible.
is there some inherited function I can access in listview to allow me to access the elements of a particular view without a custom adapter?
Thanks for any insight
The short answer to your question:
is there some inherited function I can access in listview to allow me to access the elements of a particular view without a custom adapter?
unfortunately is no.
Why do you think setting up a custom adapter is so convoluted? Just make the customized adapter class a nested class within your activity. Most likely, you'd only be looking at overriding the getView() method. In the end, you'll spend a lot less time doing this than looking for a "simple" solution.
What about
myListView.getChild(index).setColor("black");