黑莓文字换行

Question

我无法在 BlackBerry 屏幕上对齐文本。我尝试过使用 LabelField 或 RichTextField 但文本没有按照我想要的方式对齐。它水平对齐并隐藏在屏幕中。我希望文本在水平到达屏幕末端时在下一行换行，而不是隐藏。 这是我的代码 -

import net.rim.device.api.ui.Color;
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.Graphics;
import net.rim.device.api.ui.Ui;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.RichTextField;
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;

public class DetailBloodBank extends MainScreen
{
    String resultData = "", location = "", phoneNumber = "";
    LabelField bloodBankName, locationLabel, phoneNumLabel;
    String bloodBank = "";
    LabelField locationDetail, phoneNumDetail;

    public DetailBloodBank(String data) {
        super(NO_VERTICAL_SCROLL);
        int height = Display.getHeight();
        int widhth = Display.getWidth();

//SizedVFM horizontalFieldManager = new SizedVFM(widhth,height);
        HorizontalFieldManager horizontalFieldManager = new HorizontalFieldManager(HorizontalFieldManager.NO_VERTICAL_SCROLL)
        {
            protected void paint(Graphics g) {
                g.setBackgroundColor(Color.BLACK);
                g.clear();
                super.paint(g);
            }
        };
        //setBanner(horizontalFieldManager);
        resultData = data;
        System.out.println(resultData);
        bloodBankName = new LabelField(resultData)
        {
            public void paint(Graphics g) {
                g.setColor(Color.WHITE);
                super.paint(g);
            }
        };

        Font font = Font.getDefault().derive(Font.BOLD, 8, Ui.UNITS_pt);
        bloodBankName.setFont(font);
        locationLabel = new LabelField("Location")
        {
            public void paint(Graphics g) {
                g.setColor(Color.WHITE);
                super.paint(g);
            }
        };
        Font font2 = Font.getDefault().derive(Font.BOLD, 8, Ui.UNITS_pt);
        locationLabel.setFont(font2);
        phoneNumLabel = new LabelField("Phone Number")
        {
            public void paint(Graphics g) {
                g.setColor(Color.WHITE);
                super.paint(g);
            }
        };
        Font font3 = Font.getDefault().derive(Font.BOLD, 8, Ui.UNITS_pt);
        phoneNumLabel.setFont(font3);
        DBHelpers dbh = new DBHelpers();

        dbh.retrieveDetails(resultData);
        location = dbh.getLocation();
        phoneNumber = dbh.getPhoneNumber();
        dbh.getConnectionClose();
        phoneNumDetail = new LabelField(phoneNumber)
        {
            public void paint(Graphics g) {
                g.setColor(Color.WHITE);
                super.paint(g);
            }
        };
        Font font4 = Font.getDefault().derive(Font.PLAIN, 6, Ui.UNITS_pt);
        phoneNumDetail.setFont(font4);

        locationDetail = new LabelField(location)
        {
            public void paint(Graphics g) {
                g.setColor(Color.WHITE);
                super.paint(g);
            }
        };
        Font font5 = Font.getDefault().derive(Font.PLAIN, 6, Ui.UNITS_pt);
        locationDetail.setFont(font5);
        final SeparatorField sepfield2 = new SeparatorField(SeparatorField.LINE_HORIZONTAL | Field.USE_ALL_WIDTH)
        {
            protected void paint(Graphics g) {
                g.setBackgroundColor(Color.WHITE);
                g.clear();
                super.paint(g);
            }

            protected void layout(int maxWidth, int maxHeight) {
                int width = Display.getWidth();
                int height = 25; //height of the manager
                super.layout(1250, 15);
            }
        };
        final VerticalFieldManager verticalFieldManager = new VerticalFieldManager(NO_HORIZONTAL_SCROLL);


        verticalFieldManager.add(locationLabel);
        verticalFieldManager.add(locationDetail);
        final VerticalFieldManager verticalFieldManager2 = new VerticalFieldManager(NO_HORIZONTAL_SCROLL);

        verticalFieldManager2.add(phoneNumLabel);
        verticalFieldManager2.add(phoneNumDetail);

        VerticalFieldManager routeManager2 = new VerticalFieldManager()
        {
            protected void sublayout(int width, int height) {
                layoutChild(bloodBankName, getPreferredWidth(), getPreferredHeight());
                layoutChild(sepfield2, getPreferredWidth(), getPreferredHeight());

                layoutChild(verticalFieldManager, getPreferredWidth(), getPreferredHeight());
                layoutChild(verticalFieldManager2, getPreferredWidth(), getPreferredHeight());

                setPositionChild(bloodBankName, 5, 15);
                setPositionChild(sepfield2, 0, 35);

                setPositionChild(verticalFieldManager, 0, 72);

                int y = verticalFieldManager.getHeight();
                System.out.println(y);
                setPositionChild(verticalFieldManager2, 0, y + 90);


                super.setExtent(width, height);
            }
        };
        routeManager2.add(bloodBankName);
        routeManager2.add(sepfield2);

        routeManager2.add(verticalFieldManager);
        routeManager2.add(verticalFieldManager2);

        horizontalFieldManager.add(routeManager2);
        add(horizontalFieldManager);
    }
}

Answer 1

问题出在routeManager2 中的布局逻辑。

layoutChild(bloodBankName, getPreferredWidth(), getPreferredHeight());

LabelField 或 RichTextField 的首选宽度将是当前字体大小中与其关联的字符串的宽度。如果可能的话，它更愿意在一行上显示所有内容。因此，不要传递其首选项，而是将提供的宽度传递给 sublayout(int, int)。

layoutChild(bloodBankName, width, getPreferredHeight());

希望这有帮助。