Java Development

[pranit03]

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.

[JoVinz]

Use setLabel

[pranit03]

Its not working, I had tried that before. U see in that construct of ButtinField I already specified the label.

[arkadyz · Accepted solution]

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.

[itsandybra]

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.