ObjectChoiceField problem
Hello
When I designed the user interface, I used the ObjectChoiceField. The code is as follows:
String choice [] = new String [7];
choice [0] = "Mon";
choice [1] = "Tuesday";
choice [2] = 'Sea.';
choice [3] = "SAT.";
choices [4] = "Friday";
choice [5] = "Sat.";
choice [6] = "Sun";
cfDay = new ObjectChoiceField ("day:", choice, 0);
But I think the legend 'Day' is very far from the era, like MON or Tues...
That's why a big void between the legend and the actual data.
How to remove the cache between them?
Thank you
Jerry
cfDay = new ObjectChoiceField ("day:", choice, 0, ObjectChoiceField.FIELD_LEFT);
Tags: BlackBerry Developers
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I found the solution to my problem.
Below is sample code for the solution.
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Hello
I have used described as follows:
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}
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}
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Hi all
I am doing a shopping basket sort of thing...! for this I need to change the dropdownlists dynamically on the selection.
!) When the user selects the button category, main ddl should be updated.
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The user inputs the amount of money he or she would like to invest originally, input the interest, the compound period, the regular monthly deposit into the investment, and the time her or she will have the investment and this application will calculate how much the investment will be worth.\n\n Please enter initial amount of money you are depositing into the investment.\n$XX.xx", LabelField.USE_ALL_WIDTH); //INPUT FIELDS TESTING!!!! //INPUT FIELD W/ BORDER BasicEditField _input = new BasicEditField(); XYEdges padding = new XYEdges(10, 10, 10, 10); int color = Color.DARKGREEN; int lineStyle = Border.STYLE_SOLID; Border inputBorder = BorderFactory.createRoundedBorder(padding, color, lineStyle); _input.setBorder(inputBorder); //ADD FIELDS AND SEPARATORS add(_fieldManagerTop); add(new SeparatorField()); add(_fieldManagerMiddle); add(new SeparatorField()); add(_fieldManagerBottom); add(new SeparatorField()); add(_fieldManagerButton); //ADD PAGE, INFO, INPUT _fieldManagerTop.add(_page); _fieldManagerMiddle.add(_info); _fieldManagerBottom.add(_input); //CREATE BUTTON TO NEXT PAGE ButtonField pressButton = new ButtonField("NEXT"); pressButton.setChangeListener(this); _fieldManagerButton.add(pressButton); } //BUTTON FIELD CHANGE: ACTIONS public void fieldChanged(Field field, int context) { // PROBLEM IS HERE, I WANT WHATEVER IS TYPED INTO _input TO BE SET AS THE VARIABLE initialInvestmentFinanceApplication.initialInvestment=_input; UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new Screen2()); } }//SCREEN 2 INPUTS *INTEREST* package com.rim.samples.Finance; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.DrawStyle; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.FieldChangeListener; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.MenuItem; import net.rim.device.api.ui.UiApplication; import net.rim.device.api.ui.XYEdges; import net.rim.device.api.ui.component.BasicEditField; import net.rim.device.api.ui.component.ButtonField; import net.rim.device.api.ui.component.Dialog; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.component.Menu; import net.rim.device.api.ui.component.SeparatorField; import net.rim.device.api.ui.container.HorizontalFieldManager; import net.rim.device.api.ui.container.MainScreen; import net.rim.device.api.ui.container.VerticalFieldManager; import net.rim.device.api.ui.decor.Border; import net.rim.device.api.ui.decor.BorderFactory; public class Screen2 extends MainScreen implements FieldChangeListener { //DECLARE MENU BUTTONS protected void makeMenu(Menu menu, int instance) { menu.add(_home); menu.add(_close); } private MenuItem _home = new MenuItem("Home Page", 110, 10) { public void run() { onHome(); } }; public boolean onHome() { Dialog.alert("Homepage Selected"); UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new Screen1()); return true; } private MenuItem _close = new MenuItem("Close", 110, 10) { public void run() { onClose(); } }; public boolean onClose() { Dialog.alert("Goodbye!"); System.exit(0); return true; } //SCREEN 2 METHOD Screen2() { HorizontalFieldManager _fieldManagerTop = new HorizontalFieldManager(); VerticalFieldManager _fieldManagerMiddle = new VerticalFieldManager(); HorizontalFieldManager _fieldManagerBottom = new HorizontalFieldManager(); HorizontalFieldManager _fieldManagerButton = new HorizontalFieldManager(); //SET TITLE: FINANCIAL APPLICATION LabelField title = new LabelField ("Financial Application", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); Font titleFont = this.getFont().derive(Font.BOLD | Font.ITALIC); title.setFont(titleFont); setTitle(title); //SET PAGE & INFO TEXT LabelField _page = new LabelField("Page Two ~ Interest", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); LabelField _info = new LabelField("\nNow please enter the interest that will be put on this investment", LabelField.USE_ALL_WIDTH); //INPUT FIELD W/ BORDER BasicEditField _input = new BasicEditField(); XYEdges padding = new XYEdges(10, 10, 10, 10); int color = Color.DARKGREEN; int lineStyle = Border.STYLE_SOLID; Border inputBorder = BorderFactory.createRoundedBorder(padding, color, lineStyle); _input.setBorder(inputBorder); //ADD FIELDS AND SEPARATORS add(_fieldManagerTop); add(new SeparatorField()); add(_fieldManagerMiddle); add(new SeparatorField()); add(_fieldManagerBottom); add(new SeparatorField()); add(_fieldManagerButton); //ADD PAGE, INFO, INPUT _fieldManagerTop.add(_page); _fieldManagerMiddle.add(_info); _fieldManagerBottom.add(_input); //CREATE BUTTON TO NEXT PAGE ButtonField pressButton = new ButtonField("NEXT"); pressButton.setChangeListener(this); _fieldManagerButton.add(pressButton); } //BUTTON FIELD CHANGE: ACTIONS public void fieldChanged(Field field, int context) { UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new Screen3()); } }//SCREEN 3 INPUTS *COMPOUND PERIOD* package com.rim.samples.Finance; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.DrawStyle; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.FieldChangeListener; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.MenuItem; import net.rim.device.api.ui.UiApplication; import net.rim.device.api.ui.XYEdges; import net.rim.device.api.ui.component.BasicEditField; import net.rim.device.api.ui.component.ButtonField; import net.rim.device.api.ui.component.Dialog; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.component.Menu; import net.rim.device.api.ui.component.ObjectChoiceField; import net.rim.device.api.ui.component.SeparatorField; import net.rim.device.api.ui.container.HorizontalFieldManager; import net.rim.device.api.ui.container.MainScreen; import net.rim.device.api.ui.container.VerticalFieldManager; import net.rim.device.api.ui.decor.Border; import net.rim.device.api.ui.decor.BorderFactory; public class Screen3 extends MainScreen implements FieldChangeListener { //DECLARE MENU BUTTONS protected void makeMenu(Menu menu, int instance) { menu.add(_home); menu.add(_close); } private MenuItem _home = new MenuItem("Home Page", 110, 10) { public void run() { onHome(); } }; public boolean onHome() { Dialog.alert("Homepage Selected"); UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new Screen1()); return true; } private MenuItem _close = new MenuItem("Close", 110, 10) { public void run() { onClose(); } }; public boolean onClose() { Dialog.alert("Goodbye!"); System.exit(0); return true; } //SCREEN 3 METHOD Screen3() { HorizontalFieldManager _fieldManagerTop = new HorizontalFieldManager(); VerticalFieldManager _fieldManagerMiddle = new VerticalFieldManager(); HorizontalFieldManager _fieldManagerBottom = new HorizontalFieldManager(); HorizontalFieldManager _fieldManagerButton = new HorizontalFieldManager(); //SET TITLE: FINANCIAL APPLICATION LabelField title = new LabelField ("Financial Application", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); Font titleFont = this.getFont().derive(Font.BOLD | Font.ITALIC); title.setFont(titleFont); setTitle(title); //SET PAGE & INFO TEXT LabelField _page = new LabelField("Page Three ~ Compound Period", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER);; LabelField _info = new LabelField("\nNow please enter the compound period.\npress spacebar to go through the choices:", LabelField.USE_ALL_WIDTH);; //ADD FIELDS AND SEPARATORS add(_fieldManagerTop); add(new SeparatorField()); add(_fieldManagerMiddle); add(new SeparatorField()); add(_fieldManagerBottom); add(new SeparatorField()); add(_fieldManagerButton); //OBJECT CHOICE FIELD String choicestrs[] = {"Weekly", "Bi-Weekly", "Monthly", "Quarterly", "Annually"}; ObjectChoiceField choice = new ObjectChoiceField("Compound Period: ", choicestrs, 0); //ADD PAGE, INFO, OBJECT CHOIE TO FIELD _fieldManagerTop.add(_page); _fieldManagerMiddle.add(_info); _fieldManagerBottom.add(choice); //CREATE BUTTON TO NEXT PAGE ButtonField press2Button = new ButtonField("NEXT"); press2Button.setChangeListener(this); _fieldManagerButton.add(press2Button); } //BUTTON FIELD CHANGE: ACTIONS public void fieldChanged(Field field, int context) { UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new Screen4()); } }//SCREEN 4 INPUTS *LENGTH OF INVESTMENT* package com.rim.samples.Finance; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.DrawStyle; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.FieldChangeListener; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.MenuItem; import net.rim.device.api.ui.UiApplication; import net.rim.device.api.ui.XYEdges; import net.rim.device.api.ui.component.BasicEditField; import net.rim.device.api.ui.component.ButtonField; import net.rim.device.api.ui.component.Dialog; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.component.Menu; import net.rim.device.api.ui.component.SeparatorField; import net.rim.device.api.ui.container.HorizontalFieldManager; import net.rim.device.api.ui.container.MainScreen; import net.rim.device.api.ui.container.VerticalFieldManager; import net.rim.device.api.ui.decor.Border; import net.rim.device.api.ui.decor.BorderFactory; public class Screen4 extends MainScreen implements FieldChangeListener { //DECLARE MENU BUTTONS protected void makeMenu(Menu menu, int instance) { menu.add(_home); menu.add(_close); } private MenuItem _home = new MenuItem("Home Page", 110, 10) { public void run() { onHome(); } }; public boolean onHome() { Dialog.alert("Homepage Selected"); UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new Screen1()); return true; } private MenuItem _close = new MenuItem("Close", 110, 10) { public void run() { onClose(); } }; public boolean onClose() { Dialog.alert("Goodbye!"); System.exit(0); return true; } //SCREEN 4 METHOD Screen4() { HorizontalFieldManager _fieldManagerTop = new HorizontalFieldManager(); VerticalFieldManager _fieldManagerMiddle = new VerticalFieldManager(); HorizontalFieldManager _fieldManagerBottom = new HorizontalFieldManager(); HorizontalFieldManager _fieldManagerButton = new HorizontalFieldManager(); //SET TITLE: FINANCIAL APPLICATION LabelField title = new LabelField ("Financial Application", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); Font titleFont = this.getFont().derive(Font.BOLD | Font.ITALIC); title.setFont(titleFont); setTitle(title); //SET PAGE & INFO TEXT LabelField _page = new LabelField("Page Four ~ Investment Length", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); LabelField _info = new LabelField("\nNow please enter how long you will have this investment for?\nPlease enter the amount in months:", LabelField.USE_ALL_WIDTH); //INPUT FIELD W/ BORDER BasicEditField _input = new BasicEditField(); XYEdges padding = new XYEdges(10, 10, 10, 10); int color = Color.DARKGREEN; int lineStyle = Border.STYLE_SOLID; Border inputBorder = BorderFactory.createRoundedBorder(padding, color, lineStyle); _input.setBorder(inputBorder); //ADD FIELDS AND SEPARATORS add(_fieldManagerTop); add(new SeparatorField()); add(_fieldManagerMiddle); add(new SeparatorField()); add(_fieldManagerBottom); add(new SeparatorField()); add(_fieldManagerButton); //ADD PAGE, INFO, INPUT _fieldManagerTop.add(_page); _fieldManagerMiddle.add(_info); _fieldManagerBottom.add(_input); //CREATE BUTTON TO NEXT PAGE ButtonField pressButton = new ButtonField("NEXT"); pressButton.setChangeListener(this); _fieldManagerButton.add(pressButton); } //BUTTON FIELD CHANGE: ACTIONS public void fieldChanged(Field field, int context) { UiApplication.getUiApplication().popScreen(this); UiApplication.getUiApplication().pushScreen(new InvestmentWorth()); } }//INVESTMENT WORTH package com.rim.samples.Finance; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.DrawStyle; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.FieldChangeListener; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.Manager; import net.rim.device.api.ui.MenuItem; import net.rim.device.api.ui.UiApplication; import net.rim.device.api.ui.XYEdges; import net.rim.device.api.ui.component.ButtonField; import net.rim.device.api.ui.component.Dialog; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.component.Menu; import net.rim.device.api.ui.component.SeparatorField; import net.rim.device.api.ui.container.HorizontalFieldManager; import net.rim.device.api.ui.container.MainScreen; import net.rim.device.api.ui.container.VerticalFieldManager; import net.rim.device.api.ui.decor.Border; import net.rim.device.api.ui.decor.BorderFactory; public class InvestmentWorth extends MainScreen { //DECLARE MENU BUTTONS protected void makeMenu(Menu menu, int instance) { menu.add(_close); } private MenuItem _close = new MenuItem("Close", 110, 10) { public void run() { onClose(); } }; public boolean onClose() { Dialog.alert("Goodbye!"); System.exit(0); return true; } //SCREEN 1 METHOD InvestmentWorth() { HorizontalFieldManager _fieldManagerTop = new HorizontalFieldManager(Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR); VerticalFieldManager _fieldManagerMiddle = new VerticalFieldManager(Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR); HorizontalFieldManager _fieldManagerBottom = new HorizontalFieldManager(Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR); //SET TITLE: FINANCIAL APPLICATION LabelField title = new LabelField ("Financial Application", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); Font titleFont = this.getFont().derive(Font.BOLD | Font.ITALIC); title.setFont(titleFont); setTitle(title); //SET PAGE & INFO TEXT LabelField _page = new LabelField("Homepage ~ Initial Investment", LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER); LabelField _info = new LabelField("\nHere is the worth of your investment:\n", LabelField.USE_ALL_WIDTH); //INPUT FIELD W/ BORDER LabelField _worth = new LabelField(); XYEdges padding = new XYEdges(10, 10, 10, 10); int color = Color.BLACK; int lineStyle = Border.STYLE_SOLID; Border inputBorder = BorderFactory.createRoundedBorder(padding, color, lineStyle); _worth.setBorder(inputBorder); //ADD FIELDS AND SEPARATORS add(_fieldManagerTop); add(new SeparatorField()); add(_fieldManagerMiddle); add(new SeparatorField()); add(_fieldManagerBottom); //ADD PAGE, INFO, INPUT _fieldManagerTop.add(_page); _fieldManagerMiddle.add(_info); _fieldManagerBottom.add(_worth); } }So when I run on the emulator, on Blackbery 8520 SDK emulator, it doesn't let me scroll upwards on the first screen to see the rest of the text, it's like the cursor on the button sticks or editing field base so it wont allow to exceed upwards the button or basic edit field , but I can scroll between them.
Second problem is trying to address (as defined in the first class) variables to different edit fields so when something is typed in (double), it is placed in the variable to use in the rest of the program. I want to make sure the basic edit fields only allow "double" number entered, otherwise it displays a message 'incorrect type '. Please help me with this, or give me some advice.
I would REALLY appreciate it.
LabelFields will display several lines later the OS, so maybe this isn't a problem. However, LabelFields are by default not active, so you can't scroll on them. RichTextFields are active by default. So either change your LabelFields for et focusable (style LabelField.FOCUSABLE) pr change to RichTextField, as the previous poster suggested.
I do not understand your second question, what are the numbers 'double '?
However, I was watching the styles FILTER_ that you can use to BasicEditField or watch extending TextFilter to check the characters that they are entered. I suspect TextFilter is the right way to go, but I've never done anything like this. But having a good overview in this field and classes that extends.
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