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inside custom component

Java Development

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Contributor
Posts: 10
Registered: ‎07-18-2012
My Device: BlackBerry 9800
My Carrier: home
Accepted Solution

ButtonField didn't show any label

 

 

 

In above u can see that ButtonField didn't show any label, what should I do for taht??

 

In that I had use setExtent() method to fit my buttons on display.

 

 

btnSeven = new ButtonField("7") {
            protected void layout(int width, int height) {
                setExtent(Display.getWidth()>>3, 30);

            }
        };
        btnEight = new ButtonField("8") {
            protected void layout(int width, int height) {
                setExtent(Display.getWidth()>>3, 30);
            }

            // protected void paintBackground(Graphics g) {
            //
            //
            // };
        };
        btnNine = new ButtonField("9") {
            protected void layout(int width, int height) {
                setExtent(Display.getWidth()>>3, 30);
            }
        };
        btnDiv = new ButtonField("/") {
            protected void layout(int width, int height) {
                setExtent(Display.getWidth()>>3, 30);
            }
        };

 

when I remove setExtent Method label of buttonField will display.

Developer
Posts: 255
Registered: ‎05-03-2012
My Device: 9930
My Carrier: Vodafone

Re: ButtonField didn't show any label

Use setLabel
Contributor
Posts: 10
Registered: ‎07-18-2012
My Device: BlackBerry 9800
My Carrier: home

Re: ButtonField didn't show any label

Its not working, I had tried that before. U see in that construct of ButtinField I already specified the label.
Developer
Posts: 2,268
Registered: ‎07-08-2009
My Device: various
My Carrier: various

Re: ButtonField didn't show any label

Your problem is your layout override - ButtonField does much more in its layout than just setting the extent. The proper way with ButtonField (never documented, by the way, so I understand your confusion) is to define getPreferredWidth and getPreferredHeight to return your desirable dimensions and leave its layout alone.

 

When you are ready to play with backgrounds, take a look at Background and BackgroundFactory classes.

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Contributor
Posts: 28
Registered: ‎09-28-2011
My Device: 9700 Bold
My Carrier: Vodafone

Re: ButtonField didn't show any label

It looks like you are making the buttons too small for the labels to show when you override the setExtent method. You could try changing the font of the label and making it smaller or only placing 3 buttons per row.