java - BlackBerry 上 ListField 行中的文本换行

Question

如何在 ListField 行中换行文本？我在左侧显示图像，在右侧显示文本。一些较长的文本超出了 ListField 行，我希望它能够换行而不是被截断。

Answer 1

我也面临着同样的问题，因为我的要求也和你的一样，但是如果你不使用图像，但仍然想使用自定义标签字段来传递一些参数，你可以使用我的方式。

import net.rim.device.api.system.Bitmap;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.Font;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.Keypad;
import net.rim.device.api.ui.component.LabelField;

public class MyCustomSubscriptionLabelField extends LabelField {

    private Bitmap image = null;
    private String customName = null;
    private String key;
    private String programName, startTime;

    // Edited by vivek on 2010-11-18 to convert Basic Tv as Live tv i.e mapping
    public MyCustomSubscriptionLabelField(String key, String customName,
            long style) {
        super("", FOCUSABLE);
        if (customName == null)
            this.customName = key;
        else
            this.customName = customName;
        this.key = key;
    }

    public MyCustomSubscriptionLabelField(String programName, String startTime,
            String customName, long style) {
        super("", FOCUSABLE);
        this.programName = programName;
        this.startTime = startTime;
    }

    public void setText(String text, int offset, int length) {
        // super.setText(customName, image.getWidth(), customName.length());
        super.setText(text);
    }

    public void paint(Graphics graphics) {

        super.paint(graphics);
    }

    public String getCustomName() {
        return customName;
    }

    public String getKey() {
        return key;
    }

    protected boolean navigationClick(int status, int time) {
        fieldChangeNotify(0);
        return true;
    }

    protected boolean keyChar(char character, int status, int time) {
        if (character == Keypad.KEY_ENTER) {
            fieldChangeNotify(0);
            return true;
        }
        return super.keyChar(character, status, time);
    }

    public void setProgramName(String programName) {
        this.programName = programName;
    }

    public String getProgramName() {
        return programName;
    }

    public void setStartTime(String startTime) {
        this.startTime = startTime;
    }

    public String getStartTime() {
        return startTime;
    }
}

要使用此自定义标签字段类，请使用 setText 设置任何长文本；

customSubscriptionLabelField[j]= 
    new CustomSubscriptionLabelField("","Value tht u want to pass and retrive",style);
customSubscriptionLabelField[j].setText("Any Long text will be wrapped to new line ",0,text.length());

希望这能在某些地方帮助你