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I am using four ProgressBars in my AndroidApp.
First of all I want them all to be empty, and when I update a Variable, I want one of the ProgressBars to get filled a bit. But only up to a "goal" that I want to set in beforehand. For example as soon as the Variable hits 1000, the ProgressBar should be filled and a message should pop up or something like that, when the variable is 500, it should be halfway filled and so on.
These are my problems, I think they might all be solved by knowing how to bind a ProgressBar to a variable? If so, please tell me how I can achieve that, else, please tell me how I can still get my plan done. THANK YOU!
You can set the progress bar max value to 1000 and then rather than set the variable to 500, set the progress value to 500.
Here an example of binding the progress bar is:
Can i databind a ProgressBar in Android?
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An image of my program demo, I would like to have it only show 10 or so items at a time to choose from. Any help would be appreciated thanks!
image of my program issue
You cannot limit the height of the drop down list of a ChoiceBox.
The documentation of ChoiceBox explicitly states:
The ChoiceBox is used for presenting the user with a relatively small set of predefined choices from which they may choose.
50 possible choices doesn't fit into the category of "relatively small set".
You could use a ComboBox instead of the ChoiceBox. With a ComboBox you can limit the number of visible items.
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I'm having some trouble with my code. I have a number of lists, lists 1, 2 and 3 contain elemets so that when I click them they appear in list 4.
My goal is to have a number appear in a JTextField that will change every time an element is added to list 4.
This is the code I have in order for me to do that but it doesn't work and I don't know why.
jtextfield.setText(java.lang.String.valueOf(list4.getModel().getSize()));
The java.lang.String is weird I know but eclipse told me to change it.
Thank you!
You should use a ListDataListener. An event will be generated any time the DefaultListModel is updated by adding or removing an item.
Then you simply invoke the code you posted above.
Read the section from the Swing tutorial on How to Write a ListDataListener for more information and working examples.
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Very general question, I am just confused on what setBorderPainted does. I'm creating a GUI and I need it. What happens if I don't include it in my GUI, will it effect anything?
Thanks
It is a property of javax.swing.AbstractButton.
When you set this property to true, and if the button has a border, it will paint the border.
As far as I know in certain OS like MAC, when you set the background color of the button, only the border of the button is painted with color. Some people will set this property to false so that the background can be seen colored.
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Im pretty new to SWING and I tried my best but this is what is happening.
I have a interface that looks like this:
https://dl.dropboxusercontent.com/u/17524455/nodelete/1.jpg
From the main thread I call:
FrmMain.settextParticipants(5 + "");
FrmMain.setLaps(5 + "");
FrmMain.setRaceType("standard");
And that goes OK.
I Even manage to update the stoptime and time in the upper part of the GUI.
But as soon as I call (in the next line)
PnlRacers.PnlTransparents[0].setNameAndKartNr("01", "RACER");
My UI breaks like this:
https://dl.dropboxusercontent.com/u/17524455/nodelete/2.jpg
And the only thing that helps to fix the UI is, when I grab the window and move it around (to my second screen for example). That tells me that the "data" or "functions" are working well I guess... But the REDRAWING (or how to call it) is somehow ok for the first arguments and broken for the last class. After moving around it looks like this: https://dl.dropboxusercontent.com/u/17524455/nodelete/3.jpg
I read something about redraw() and validate() and I tried all on all places and on any element I was working with :(.
Maybe someone knows what the problem could be and if the source should be any help, here it is: https://dl.dropboxusercontent.com/u/17524455/nodelete/TEST.rar
Please help :) Im so lost ...
Have you tried calling repaint() to the content pane after the change you implemented?
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Hi I wanted to show one activity only 3 times in android. Actually its a dialog which ask user some suggestion if user rejects it more than 3 times that dialog will not appear again unless and until user uninstall and reinstall the app.
Can anybody suggest me some solution to this.
Any help is appreciated.
This is for conditional display of dialog. I had performed a similar functionality earlier. You can do so by having a counting variable in the sqlite. Each time the user rejects the dialog for suggestion, fetch the entry from the database, check if it is less than or equal to 3. If less than 3, then display the dialog, update the database entry by incrementing count variable by 1. Otherwise, if more than 3, do not display the dialog.
Creating a database and initializing the variable:
SQLiteDatabase db=openOrCreateDatabase("MYDB", MODE_PRIVATE, null);
db.execSQL("CREATE TABLE IF NOT EXISTS myTbl(Name VARCHAR,num VARCHAR);");
//Here, Name is the name of your counting variable and num is the value you want to store in it
String name="count";
String num="0";
String s="INSERT INTO myTbl VALUES ('"+name+"','"+num+"');";
db.execSQL(s);
Log.d("myapp", "Insertion of data successfull");
db.close();
The advantage of using this approach is that, once the application is uninstalled, its corresponding sqlite database will also be deleted. Hence, this will ensure that if the user ignore the dialog for more than 3 times, then the dialog will not launch as long as the application is uninstalled and reinstalled. Regarding updating the values in sqlite, i hope you know the basics.
Hope this has helped
Create a SharedPreferances save 0 as initial value in it, on user rejection, increment the value by 1 and save it in SharedPreferances, once the value reaches to 3, don’t start the activity again. You can use database instead of sharedPreferances.
You should use SharedPreferances for counting the value of showing suggestion like 0 to 3. For the suggestion show you can use separate layout and use include it to your main layout. Then the complexity of activity handling will be reduced. When the layout is showed three times then the specific layout should not be shown by setting it's visibility GONE.