Slider custom text field (Cap) does not appear
All;
I created a custom text field based on the standard text field, changes work fine (really just a custom height and width and a border). The problem is the method of painting which seems to remove the cap of the field when it gets the focus. To be clear the carret never shown at all.
public class CustomText extends TextField //cutom text field width { //Custom Height and Width in Pixels final static int textwidth=125; final static int textheight=25; CustomText() { super(); // Call the default constructor //Border for text fields XYEdges padding = new XYEdges(5, 5, 5, 5); //space between box and border Border theborder = BorderFactory.createSimpleBorder(padding, Border.STYLE_SOLID); //Assign the border to the object this.setBorder(theborder); } public void onFocus( int direction ) { super.onFocus( direction ); //invoke parent procedure invalidate(); //mark for redraw } public void onUnfocus() { super.onUnfocus(); //invoke parent procedure invalidate(); //mark for redraw } //Override the layout with the custom Width and Height protected void layout(int width, int height) { super.layout(textwidth,textheight); setExtent(textwidth,textheight); } //Override the display message such that no message is displayed when the field is full protected void displayFieldFullMessage() { } //Override the default paint method to call the super class constructor and then assign the border protected void paint(Graphics graphics) { // int prevColor = graphics.getColor(); //Save Previous Color graphics.setBackgroundColor(Color.LIGHTGRAY); // Set to Gray graphics.clear(); // Clear for redraw super.paint(graphics); //Force Redraw of Object // graphics.setColor(prevColor); //restore for cursor paint } };
In the paint in the first and last method lines that are commented out were a soloution that I tried after reading on this subject. Something along the lines of the restoration of the default color, but unfortunately without success. Any ideas would be more useful
Thank you!
Quick thoughts:
(a) to remove the requirement to substitute paint by setting the background a Color.LIGHTGRAY using the base class
(b) you put on the field by using this:
Super.Layout (TextWidth, TextHeight);
If you then do the following:
setExtent (textwidth, textheight);
you are likely to confuse the field. If you still want to use the entire height and use the full width and then try to deal with it in the Style, that is, replace this:
Super(); Call the default constructor
with this
Super(TextField.USE_ALL_HEIGHT |) TextField.USE_ALL_WIDTH); Call the default constructor
(c) why you override onFocus and onUnfocus? I would like to delete these if you do not have anything specific to these methods.
Make these changes, and you'll have a more simple TextField. See if these changes will solve the problem of the caret too.
Tags: BlackBerry Developers
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