黑莓-如何获取后台应用程序进程ID

发布于 2024-07-25 20:39:29 字数 79 浏览 14 评论 0原文

在我的黑莓模拟器中,我在后台运行两个应用程序,现在我想检索哪些是在后台运行的应用程序。我不知道该怎么做。 是否可以显示哪些应用程序在后台运行。

In my blackberry simulator i m running two application at the background now i want to retrive which are the application running in the background.I don't how to do. Is it possible to show which are the application running in the background.

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a√萤火虫的光℡ 2024-08-01 20:39:29

列出和切换可见应用程序

替代文本 http:// /img195.imageshack.us/img195/7003/applist.png 链接文本 http://img32。 imageshack.us/img32/9273/applistmenu.png

代码:

class Scr extends MainScreen {

    ApplicationDescriptor[] mAppDes;

    public Scr() {
        listApplications();
    }

    void listApplications() {
        ApplicationManager appMan = 
            ApplicationManager.getApplicationManager();
        mAppDes = appMan.getVisibleApplications();
        add(new LabelField("Visible Applications:"));
        for (int i = 0; i < mAppDes.length; i++) {
            boolean isFG = appMan.getProcessId(mAppDes[i]) == appMan
                    .getForegroundProcessId();
            String text = (isFG ? "[F]:" : "[B]") + mAppDes[i].getName();
            add(new LabelField(text));
        }
    }

    protected void makeMenu(Menu menu, int instance) {
        super.makeMenu(menu, instance);
        menu.add(refreshApps);
        makeAppMenuItems(menu);
    }

    MenuItem refreshApps = new MenuItem("Refresh", 0, 0) {
        public void run() {
            deleteAll();
            listApplications();
        }
    };

    class AppMenuItem extends MenuItem {
        ApplicationDescriptor mAppDes;
        public AppMenuItem(ApplicationDescriptor appDes) {
            super(appDes.getName(), 100000, 100000);
            mAppDes = appDes;
        }
        public void run() {
            ApplicationManager appMan = ApplicationManager
                    .getApplicationManager();
            int processId = appMan.getProcessId(mAppDes);
            appMan.requestForeground(processId);
        }
    }

    void makeAppMenuItems(Menu menu) {
        for (int i = 0, cnt = mAppDes.length; i < cnt; i++)
            menu.add(new AppMenuItem(mAppDes[i]));
    }
}

List and switch visible application

alt text http://img195.imageshack.us/img195/7003/applist.png link text http://img32.imageshack.us/img32/9273/applistmenu.png

Code:

class Scr extends MainScreen {

    ApplicationDescriptor[] mAppDes;

    public Scr() {
        listApplications();
    }

    void listApplications() {
        ApplicationManager appMan = 
            ApplicationManager.getApplicationManager();
        mAppDes = appMan.getVisibleApplications();
        add(new LabelField("Visible Applications:"));
        for (int i = 0; i < mAppDes.length; i++) {
            boolean isFG = appMan.getProcessId(mAppDes[i]) == appMan
                    .getForegroundProcessId();
            String text = (isFG ? "[F]:" : "[B]") + mAppDes[i].getName();
            add(new LabelField(text));
        }
    }

    protected void makeMenu(Menu menu, int instance) {
        super.makeMenu(menu, instance);
        menu.add(refreshApps);
        makeAppMenuItems(menu);
    }

    MenuItem refreshApps = new MenuItem("Refresh", 0, 0) {
        public void run() {
            deleteAll();
            listApplications();
        }
    };

    class AppMenuItem extends MenuItem {
        ApplicationDescriptor mAppDes;
        public AppMenuItem(ApplicationDescriptor appDes) {
            super(appDes.getName(), 100000, 100000);
            mAppDes = appDes;
        }
        public void run() {
            ApplicationManager appMan = ApplicationManager
                    .getApplicationManager();
            int processId = appMan.getProcessId(mAppDes);
            appMan.requestForeground(processId);
        }
    }

    void makeAppMenuItems(Menu menu) {
        for (int i = 0, cnt = mAppDes.length; i < cnt; i++)
            menu.add(new AppMenuItem(mAppDes[i]));
    }
}
爱,才寂寞 2024-08-01 20:39:29

查看 运行时存储

知识库条目如何将应用程序切换到后台/前台。

祝你好运!

Take a look at the API Reference for the RuntimeStore.

And a Knowledge Base entry how to switch an App to the Background/Foreground.

Good Luck!

日裸衫吸 2024-08-01 20:39:29

不是真正的答案,但系统不允许我发表评论。

您是否真的需要知道正在运行的后台应用程序是什么,或者只是您的应用程序是否在后台运行。 如果是后者,我想你可以使用运行时存储构建一些东西

Not really an answer, but the system won't let me comment.

Do you really need to know what the running background applications are, or just if your applications are running in the background. If the latter I imagine you can build something using the runtime store

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