黑莓 - 打开邮件时使用ApplicationMenuItem的 [英] Blackberry - use of ApplicationMenuItem when opening a message

问题描述

我要当从应用程序的消息文件夹中打开一条消息，有一个听众。为此，我利用ApplicationMenuItem的，但注册后，该消息无法再打开。

  ApplicationMessageFolderRegistry messagefolderRegistry = ApplicationMessageFolderRegistry.getInstance（）;
        messaageMenuItemListener =新CVSMessaageMenuItemListener（）;
        CVSApplicationMenuItem菜单项=新CVSApplicationMenuItem（）;
        menuItem.registerMenuItemListener（messaageMenuItemListener）;
        messagefolderRegistry.registerMessageMenuItems（CVSApplicationMessage.TYPE_ALARMS，ApplicationMessage.Status.UNOPENED，新ApplicationMenuItem [] {菜单项}）;
        messagefolderRegistry.registerMessageIcon（CVSApplicationMessage.TYPE_ALARMS，ApplicationMessage.Status.UNOPENED，alarmsIcon）;
 

和菜单项：

 公共类CVSApplicationMenuItem扩展ApplicationMenuItem {    私人CVSVector听众;    CVSApplicationMenuItem（）{
        超级（20）;
    }    公共对象运行（对象上下文）{
        如果（！（上下文的instanceof CVSApplicationMessage））
            返回语境;        CVSApplicationMessage applicationMessage =（CVSApplicationMessage）范围内;
        如果（听众== NULL）
            返回语境;        的for（int i = 0; I＆LT; listeners.size（）;我++）{
            （（ICVSApplicationMessageMenuItemListener）listeners.itemAt（I））messageReaded（applicationMessage）。
        }
        返回语境;
    }    公共无效registerMenuItemListener（ICVSApplicationMessageMenuItemListener L）{
        如果（听众== NULL）
            听众=新CVSVector（）;        如果（L！= NULL）
            listeners.addItem（升）;
    }    公共字符串的toString（）{
        返回null;
    }}
 

我可以看到在消息列表（从家里通知图标打开）的消息，但不能打开它。如果我做下面的工作原理，但后来我有当消息它没有开回调：

  // messagefolderRegistry.registerMessageMenuItems（CVSApplicationMessage.TYPE_ALARMS，ApplicationMessage.Status.UNOPENED，新ApplicationMenuItem [] {菜单项}）;
 

解决方案

据我所知，你没有看到系统的信息preVIEW画面了。我有同样的问题。似乎当您注册菜单项，它完全覆盖开启动作。我检查消息列表演示发现他们打开定制preVIEW消息屏幕ApplicationMenuItem的run（）方法内。因为我没有找到任何办法打开系统的信息preVIEW屏幕，我的短信我要实现自定义屏幕也。

I want to have a listener when a message is opened from the application messages folder. For this I make use of ApplicationMenuItem, but after registering it, the message could not be opened anymore.

ApplicationMessageFolderRegistry messagefolderRegistry = ApplicationMessageFolderRegistry.getInstance();
        messaageMenuItemListener = new CVSMessaageMenuItemListener();
        CVSApplicationMenuItem menuItem = new CVSApplicationMenuItem();
        menuItem.registerMenuItemListener(messaageMenuItemListener);        
        messagefolderRegistry.registerMessageMenuItems(CVSApplicationMessage.TYPE_ALARMS, ApplicationMessage.Status.UNOPENED, new ApplicationMenuItem[]{menuItem});
        messagefolderRegistry.registerMessageIcon(CVSApplicationMessage.TYPE_ALARMS, ApplicationMessage.Status.UNOPENED, alarmsIcon);

and the menuItem:

public class CVSApplicationMenuItem extends ApplicationMenuItem {

    private CVSVector listeners;

    CVSApplicationMenuItem(){
        super(20);
    }

    public Object run(Object context) {
        if(!(context instanceof CVSApplicationMessage))
            return context;

        CVSApplicationMessage applicationMessage = (CVSApplicationMessage)context;
        if(listeners == null)
            return context;

        for (int i = 0; i < listeners.size(); i++) {
            ((ICVSApplicationMessageMenuItemListener)listeners.itemAt(i)).messageReaded(applicationMessage);
        }
        return context;
    }

    public void registerMenuItemListener(ICVSApplicationMessageMenuItemListener l){
        if(listeners == null)
            listeners = new CVSVector();

        if(l != null)
            listeners.addItem(l);
    }

    public String toString() {
        return null;
    }

}

I can see the message in the messages list (opened from home notification icon), but cannot open it. If I do the following it works, but then I have no callback when the message it's opened:

//messagefolderRegistry.registerMessageMenuItems(CVSApplicationMessage.TYPE_ALARMS, ApplicationMessage.Status.UNOPENED, new ApplicationMenuItem[]{menuItem});

解决方案

As I understand you don't see system "Message preview" screen any more. I have same problem. Seems when you register menu item it completely overrides open action. I checked Message List Demo and found that they open custom preview message screen inside ApplicationMenuItem's run() method. As I didn't found any way to open system "Message preview" screen with my message I'm going to implement custom screen also.

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