I'm trying to decide on the best way to display a timetable to the user.
Ideally I wanted the data to be displayed in a table layout but I quickly realized that each table row required like 18 text views for the relevant data.
I've checked a calendar component, no use. A table layout does seem the best way to go but what's the best way to implement it so that it's easy to get data from my DB and read it into the table?
You can use GridView with its adapter:
https://developer.android.com/guide/topics/ui/layout/gridview.html
Related
I need to recreate this table in my app: https://imgur.com/a/1HtpFqO
The third field must be editable by the user, so I don't know if I should prefer ListView for this reason. What do you think?
Also, do you know if are there existing library to create this exactly design?
That depends whether your table holds data that will change or you will always have the same table with editable third field. If you have static data you don't really need to have a list.
If you have data that changes, RecyclerView is your go to option. Create it with different ViewHolder types, one type for non-editable fields and the other for editable field.
Also, there is no need to add 3rd party library just to achieve this simple table.
You can use Recyclerview with different views Like this and this
I have problem with ListView. My application read and parse data from .csv file, then I convert data to array and show in ListView. I need align data like this:
But my solution is this:
Can you help me?
To align your data into columns, i would suggest to use a TableView. You can find an example here:
https://docs.oracle.com/javafx/2/ui_controls/table-view.htm
You can change the look and feel of a TableView to match your needs.
If you like to use a list and not a table you could create a custom list cell. Here is a nice post Custom ListCell with source code which you could easily transfer to your needs.
Hey i want to create a thumbnail viewer, for my app, i want something similar to this.
I was wondering if there is a pre-existing component that can display thumbnails (FREE), or i was considering to use a JTable, with a custom cell renderer.
What do you think, what would be the best way.
It will be used to display images, keep in mind that i must be able to select individual and multiple files to perform actions on them.
thx in advance.
A JList would probably be better than a JTable. You can use a "horizontal wrap" style. You can always create a custom renderer for the list as well.
I am currently developing an Android app that is to be a counterpart to its sister iPhone prototype.
My task is to recreate the screen from a design mockup from the iPhone app in Android, as shown here:
What would be the best layouts / views to use for replicating this screen in an activity?
Thanks.
Your question does not clear some things up. Also, I disagree with Ted Hopp's answer. I believe he is assuming that the medications will be filled statically, or something like that.
By the looks of your app, I assume you will be filling stuff dynamically, probably with many medications at once, or no medication at all. By the arrows in the iPhone mock-up, I also assume you will want to perform actions depending on the medication selected.
All that said, I would use a ListView. My general concept (the one I'd probably use) would be like this:
You have your data source, and use a Loader/LoaderManager/etc. to fill that into a Cursor. I'd feed this cursor to a CursorAdapter (perhaps a SimpleCursorAdapter, which seems likely and easy by looking at that UI concept --- won't need to customize the adapter part itself). Finally, this adapter would be used in the ListView. This is fairly easy and won't take much code (the ListView-SimpleCursorAdapter-Cursor stuff, the data logic is certainly custom).
You can then manage each of your clicks using the proper ListView listeners, IIRC. And act accordingly depending on the item selected. I'm guessing that the user would, for example, startActivity to see a detail about each medication.
However, as I said, if you have a fixed number of medications (here says an experienced former leukemia patient here, so I always assume medications vary widely!), a single TableLayout would do, but I feel that's not the case.
Ah, and about the layout for each component/med, as I said, a simple layout would do. Probably a LinearLayout with horizontal orientation. Again, very simple to implement with a SimpleCursorAdapter.
There's a nice example of how to do this with a custom row view here. This is probably the cleanest way to go.
The closest built-in widget for this is a TableLayout. Take a look at the Hello Views tutorial project for an example of this in action. You might want to wrap it in a ScrollView.
The right approach is highly dependent on the requirements. As I see it, you have (at least) a few options:
TableLayout
ListView
Something custom
As David noted, the TableLayout is most appropriate if you have a fixed set of data, but you can make it work dynamically too simply by adding child views. The benefit of using the TableLayout is mainly a built-in implementation of columns, including dynamic column sizing based on contents. The down-side is the lack of built-in dynamic support, especially when working with large data sets.
A ListView is a better fit for dynamic and large data sets, but comes with the limitation of not supporting columns. Ted's link lets you simulate columns, but unlike TableLayout these columns have a fixed width (in percentage of the parent's width). The columns are not sized based on content. You could potentially try to do something to measure all the children, but it'd be tricky. It can also be mildly annoying to try to deal with headers in a ListView, though with a little searching you'll find plenty of resources to help you with this.
The third option is to roll your own AdapterView or AbsListView. Of course this involves a significant amount more work, but you could take a look at how TableLayout works and resize the columns based on the content. This would also get you support for adapters and all the benefits that come along with that. This is probably quite a bit of work though, especially resizing the columns based on content.
Consider whether your columns must resize to fit their content or not.
I'm trying to make an android app (I'm new in the Android programming world), and I'm having problems creating the GUI.
The point is that I get information of some data that is divided in days... The problem is that I don't know, until I retrieve the information, how many days the GUI should display.
http://img574.imageshack.us/img574/3787/mainscreen.jpg
The grey part will be a TextView, and, also, the black part will be another TextView with multiple lines.
So, the point is, how can I do to have multiple TextView's without knowing before the exact number? I suppose that I can't declare them in the layout.xml
The only solution that I've been thinking about is to create in the layout 7 pairs of TextView and, when I know the exact number, just use what I have to, and don't use the others... (It's a bad solution)
What do you suggest?
Thank you for your answers!
You should create a ListView, which inflates TextView for the items you have.
You can use this example of how to create sectioned ListView, which will look exactly like you want.
I'm not familiar with Android, so other people may offer better, more specific advice.
In the environments I'm familiar with, the problem of displaying an unknown number of items is solved by using not a series of display elements for each data item but a list control. The list component will display as many items as you give it, and can usually be modified to have different appearance for different data, so you're flexible in making it as pretty as you want.
Well you can consider this one also,
Create a table layout in XML, give it a id: TableLayout table=(TableLayout)findViewById(r.id. ....)
Create dynamic TextViews using: TextView day=new TextView(this); day.setText(day name);
Now add this text view to your table layout : table.addView(day);
Run the code for textView creation and addition to table in loop
Hope this helps...............