Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/blackberry/2.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Java Blackberry自定义列表字段未以正确方式重新绘制_Java_Blackberry_Listfield_Blackberry 5 - Fatal编程技术网

Java Blackberry自定义列表字段未以正确方式重新绘制

Java Blackberry自定义列表字段未以正确方式重新绘制,java,blackberry,listfield,blackberry-5,Java,Blackberry,Listfield,Blackberry 5,每次我使用自定义列表字段推送新屏幕时,行的大小都不是必须的大小。我尝试使用invalidate,但它没有任何作用 我不明白为什么,当我使用焦点导航时,或者当屏幕处于非活动状态并返回时,列表以正确的方式显示 public class AboutListField extends ListField implements ListFieldCallback { private Vector rows; EncodedImage _rateIcon = EncodedImage

每次我使用自定义列表字段推送新屏幕时,行的大小都不是必须的大小。我尝试使用invalidate,但它没有任何作用

我不明白为什么,当我使用焦点导航时,或者当屏幕处于非活动状态并返回时,列表以正确的方式显示

public class AboutListField extends ListField implements ListFieldCallback {

    private Vector rows;

    EncodedImage _rateIcon = EncodedImage
            .getEncodedImageResource("icon_rate.png");
    EncodedImage _privacyIcon = EncodedImage
            .getEncodedImageResource("icon_info.png");
    EncodedImage _legalIcon = EncodedImage
            .getEncodedImageResource("icon_ad.png");
    EncodedImage _facebookIcon = EncodedImage
            .getEncodedImageResource("icon_facebook.png");
    EncodedImage _twitterIcon = EncodedImage
            .getEncodedImageResource("icon_twitter.png");

    private LabelField nameLabel;

    public AboutListField() {
        super(0, ListField.USE_ALL_WIDTH);
        setRowHeight(60);
        setCallback(this);

        Font fontName = Font.getDefault().derive(Font.SERIF_STYLE, 8,
                Ui.UNITS_pt);

        rows = new Vector();

        for (int i = 0; i < 5; i++) {
            HorizontalManager row = new HorizontalManager();
            switch (i) {
            case 0:
                row.add(new BitmapField(_rateIcon.getBitmap()));
                nameLabel = new CustomLabelField("Valorar app", NON_FOCUSABLE,
                        Color.WHITE);
                nameLabel.setFont(fontName);
                row.add(nameLabel);
                break;
            case 1:
                row.add(new BitmapField(_privacyIcon.getBitmap()));
                nameLabel = new CustomLabelField("Política de privacidad",
                        NON_FOCUSABLE, Color.WHITE);
                nameLabel.setFont(fontName);
                row.add(nameLabel);
                break;
            case 2:
                row.add(new BitmapField(_legalIcon.getBitmap()));
                nameLabel = new CustomLabelField("Aviso Legal", NON_FOCUSABLE,
                        Color.WHITE);
                nameLabel.setFont(fontName);
                row.add(nameLabel);
                break;
            case 3:
                row.add(new BitmapField(_facebookIcon.getBitmap()));
                nameLabel = new CustomLabelField("Síguenos en Facebook",
                        NON_FOCUSABLE, Color.WHITE);
                nameLabel.setFont(fontName);
                row.add(nameLabel);
                break;
            case 4:
                row.add(new BitmapField(_twitterIcon.getBitmap()));
                nameLabel = new CustomLabelField("Síguenos en Twitter",
                        NON_FOCUSABLE, Color.WHITE);
                nameLabel.setFont(fontName);
                row.add(nameLabel);
                break;

            default:
                break;
            }
            rows.addElement(row);
        }
        setSize(rows.size());
    }

    protected void drawFocus(Graphics graphics, boolean on) {
        XYRect focusRect = new XYRect();
        getFocusRect(focusRect);

        boolean oldDrawStyleFocus = graphics
                .isDrawingStyleSet(Graphics.DRAWSTYLE_FOCUS);
        try {
            if (on) {
                // set the style so the fields in the row will update its color
                // accordingly
                graphics.setDrawingStyle(Graphics.DRAWSTYLE_FOCUS, true);
                int oldColour = graphics.getColor();
                try {
                    graphics.setColor(Constants.Colors.ORANGE_SELECTED);
                    graphics.fillRect(focusRect.x, focusRect.y,
                            focusRect.width, focusRect.height);
                } finally {
                    graphics.setColor(oldColour);
                }
                // to draw the row again
                drawListRow(this, graphics, getSelectedIndex(), focusRect.y,
                        focusRect.width);
            }

        } finally {
            graphics.setDrawingStyle(Graphics.DRAWSTYLE_FOCUS,
                    oldDrawStyleFocus);
        }
    }

    public void drawListRow(ListField listField, Graphics graphics, int index,
            int y, int width) {
        AboutListField aboutList = (AboutListField) listField;
        HorizontalManager rowManager = (HorizontalManager) aboutList.rows
                .elementAt(index);
        rowManager.drawRow(graphics, 0, y, width, getRowHeight());

    }

    public Object get(ListField listField, int index) {
        // TODO Auto-generated method stub
        return null;
    }

    public int getPreferredWidth(ListField listField) {
        // TODO Auto-generated method stub
        return 0;
    }

    public int indexOfList(ListField listField, String prefix, int start) {
        // TODO Auto-generated method stub
        return 0;
    }

    public boolean navigationClick(int status, int time) {


        switch (this.getSelectedIndex()) {
        case 0:
            //Valorar App

            this.setSelectedIndex(0);
            break;
        case 1:
            // Política de privacidad
            InfosScreen policyScreen = new InfosScreen(InfosScreen.TYPE_PRIVACY);
            UiApplication.getUiApplication().pushScreen(policyScreen);
            this.setSelectedIndex(1);
            break;
        case 2:
            // Aviso Legal
            InfosScreen legalScreen = new InfosScreen(InfosScreen.TYPE_LEGAL);
            UiApplication.getUiApplication().pushScreen(legalScreen);
            this.setSelectedIndex(2);
            break;
        case 3:
            // Facebook
            this.setSelectedIndex(3);
            break;
        case 4:
            // Twitter
            this.setSelectedIndex(4);
            break;
        default:
            break;
        }

        return super.navigationClick(status, time);
    }


    public class HorizontalManager extends Manager {

        public HorizontalManager() {
            super(0);
        }

        public void drawRow(Graphics g, int x, int y, int width, int height) {
            // Arrange the cell fields within this row manager.
            layout(width, height);

            // Place this row manager within its enclosing list.
            setPosition(x, y);

            // Apply a translating/clipping transformation to the graphics
            // context so that this row paints in the right area.
            g.pushRegion(getExtent());

            // Paint this manager's controlled fields.
            subpaint(g);

            g.setColor(0x00CACACA);
            g.drawLine(0, 0, getPreferredWidth(), 0);

            // Restore the graphics context.
            g.popContext();
        }

        protected void sublayout(int width, int height) {
            // set the size and position of each field.
            int fontHeight = Font.getDefault().getHeight();
            int preferredWidth = getPreferredWidth();

            // start with the Bitmap Field of the Radio icon
            Field field = getField(0);
            layoutChild(field, _rateIcon.getWidth(), getRowHeight());
            setPositionChild(field, 20,
                    (getHeight() / 2 - _rateIcon.getHeight() / 2));

            // set the radio name label field
            field = getField(1);
            layoutChild(field, preferredWidth - 16, getRowHeight());
            setPositionChild(field, _rateIcon.getWidth() + 40,
                    (getHeight() / 2 - fontHeight / 2));

            setExtent(preferredWidth, getPreferredHeight());
        }



        // The preferred width of a row is defined by the list renderer.
        public int getPreferredWidth() {
            return Display.getWidth();
        }

        // The preferred height of a row is the "row height" as defined in the
        // enclosing list.
        public int getPreferredHeight() {
            return getRowHeight();
        }
    }

}

public类AboutListField扩展ListField实现ListFieldCallback{
专用向量行;
EncodedImage\u rateIcon=EncodedImage
.getEncodeDimagerSource(“icon_rate.png”);
EncodedImage _privacyIcon=EncodedImage
.getEncodeDimagerSource(“icon_info.png”);
EncodedImage _-Legacon=EncodedImage
.getEncodeDimagesource(“icon_ad.png”);
EncodedImage\u facebook图标=EncodedImage
.getEncodeDimagerSource(“icon_facebook.png”);
EncodedImage _twitterIcon=EncodedImage
.getEncodeDimagerSource(“icon_twitter.png”);
私人LabelField名称标签;
公共AboutListField(){
超级(0,列表字段。使用所有宽度);
设置行高(60);
setCallback(这个);
Font fontName=Font.getDefault().derive(Font.SERIF_样式,8,
单位(单位);;
行=新向量();
对于(int i=0;i<5;i++){
HorizontalManager行=新建HorizontalManager();
开关(一){
案例0:
添加(新位图字段(_ratecon.getBitmap());
nameLabel=新的CustomLabelField(“Valorar应用程序”,非聚焦,
颜色(白色);
nameLabel.setFont(fontName);
行。添加(名称标签);
打破
案例1:
添加(新的位图字段(_privacyIcon.getBitmap());
nameLabel=新的CustomLabelField(“Política de privacidad”,
非聚焦,彩色。白色);
nameLabel.setFont(fontName);
行。添加(名称标签);
打破
案例2:
添加(新的位图字段(_-ollicon.getBitmap());
nameLabel=新的CustomLabelField(“Aviso Legal”),不可聚焦,
颜色(白色);
nameLabel.setFont(fontName);
行。添加(名称标签);
打破
案例3:
添加(新位图字段(_facebookIcon.getBitmap());
nameLabel=new CustomLabelField(“Síguenos en Facebook”,
非聚焦,彩色。白色);
nameLabel.setFont(fontName);
行。添加(名称标签);
打破
案例4:
添加(新位图字段(_twitterIcon.getBitmap());
nameLabel=new CustomLabelField(“Síguenos en Twitter”,
非聚焦,彩色。白色);
nameLabel.setFont(fontName);
行。添加(名称标签);
打破
违约:
打破
}
行。添加元素(行);
}
设置大小(rows.size());
}
受保护的void drawFocus(图形,布尔打开){
XYRect focusRect=新的XYRect();
getFocusRect(focusRect);
布尔值oldDrawStyleFocus=图形
.isDrawingStyleSet(图形.DRAWSTYLE_焦点);
试一试{
如果(打开){
//设置样式,以便行中的字段将更新其颜色
//相应地
graphics.setDrawingStyle(graphics.DRAWSTYLE_FOCUS,true);
int oldColour=graphics.getColor();
试一试{
graphics.setColor(常数.颜色.选择橙色);
graphics.fillRect(focusRect.x,focusRect.y,
focusRect.宽度、focusRect.高度);
}最后{
图形.设置颜色(旧颜色);
}
//再次划清界限
drawListRow(这个,graphics,getSelectedIndex(),focusRect.y,
焦直宽度);
}
}最后{
graphics.setDrawingStyle(graphics.DRAWSTYLE\u焦点,
奥尔德(焦点);
}
}
public void drawListRow(ListField ListField、图形、整数索引、,
整数y,整数宽度){
AboutListField aboutList=(AboutListField)列表字段;
HorizontalManager行管理器=(HorizontalManager)aboutList.rows
.elementAt(索引);
drawRow(图形,0,y,宽度,getRowHeight());
}
公共对象get(ListField ListField,int index){
//TODO自动生成的方法存根
返回null;
}
public int getPreferredWidth(ListField ListField){
//TODO自动生成的方法存根
返回0;
}
public int indexOfList(ListField ListField,字符串前缀,int start){
//TODO自动生成的方法存根
返回0;
}
公共布尔导航单击(int状态,int时间){
开关(this.getSelectedIndex()){
案例0:
//Valorar应用程序
此.setSelectedIndex(0);
打破
案例1:
//私有政策
InfosScreen policyScreen=新的InfosScreen(InfosScreen.TYPE_PRIVACY);
UiApplication.getUiApplication().pushScreen(策略屏幕);
此。设置选定的索引(1);
打破
案例2:
//阿维索法律公司
InfosScreen legalsScreen=新的InfosScreen(InfosScreen.TYPE_LEGAL);
UiApplication.getUiApplication().pushScreen(legalScreen);
本.设置选择的索引(2);
打破
案例3:
//脸谱网
本.设置选择的索引(3);
打破
案例4:
//推特
本.设置选择的索引(4);
打破
违约:
打破
}
返回super.navigationClick(状态、时间