android - 我无法使用 android 4.2 扩展状态栏 no 我的 nexus 4

Question

我无法使用 android 4.2 扩展我的 nexus 4 的状态栏，但其他级别运行正常，我的代码是:

public void OpenNotify() {
    // TODO Auto-generated method stub
    int currentApiVersion = android.os.Build.VERSION.SDK_INT;
    try {
        Object service  = getSystemService("statusbar");
        Class<?> statusbarManager = Class.forName("android.app.StatusBarManager");

        if (service != null) {
            /*Method expand = service.getClass()statusbarManager.getMethod("expand");
            expand.invoke(service);*/
            if (currentApiVersion <= 16) {
                Method collapse = statusbarManager.getMethod("collapse");
                collapse.setAccessible(true);
                collapse.invoke(service);
            } else {
                Method collapse2 = statusbarManager.getMethod("collapsePanels");
                collapse2.setAccessible(true);
                collapse2.invoke(service);
            }
        }

    } catch (Exception e) {
    }


}

和

我该怎么办？

Answer 1

public void OpenNotify() {
    // TODO Auto-generated method stub
    int currentApiVersion = android.os.Build.VERSION.SDK_INT;
    try {
        Object service = getSystemService("statusbar");
        Class<?> statusbarManager = Class
                .forName("android.app.StatusBarManager");
        Method expand = null;
        if (service != null) {
            if (currentApiVersion <= 16) {
                expand = statusbarManager.getMethod("expand");
            } else {
                expand = statusbarManager
                        .getMethod("expandNotificationsPanel");
            }
            expand.setAccessible(true);
            expand.invoke(service);
        }

    } catch (Exception e) {
    }

}

这样就可以正常运行了!