Question

我试图在Android上取消目标应用的通知，然后我阅读了源代码并注意到它可能有一些技巧。我试图通过反思来称呼它。

public abstract interface INotificationManager extends IInterface {

    public abstract void cancelAllNotifications(String paramString) throws RemoteException;

但效果不佳，当代码运行到最后一行时，继续抛出InvocationTargetException。我仍然不明白为什么。你能给我一些提示吗？

这是我的代码。非常感谢：）

        mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

        Method getServiceMethod = mNotificationManager.getClass().getMethod("getService");

        Object iNotificationManagerObject = getServiceMethod.invoke(mNotificationManager, (Object[]) null);

        Class iNotificationManager = Class.forName("android.app.INotificationManager");

        Method cancelAllNotificationsMethod = iNotificationManager.getMethod("cancelAllNotifications", new Class[] { String.class});
        cancelAllNotificationsMethod.invoke(iNotificationManagerObject, new Object[] { "com.reallyBadApp"});

Answer 1

try {
        Class<?> c = Class.forName("android.app.NotificationManager");
        Method method = c.getMethod("getService");
        Object obj = method.invoke(mNotificationManager);
        Class<?> clazz = Class.forName("android.app.INotificationManager$Stub$Proxy");
        if (VERSION.SDK_INT < 17) {
            Method cancelAllNotificationsMethod = clazz.getMethod("cancelAllNotifications", String.class);
            cancelAllNotificationsMethod.invoke(obj, pkg);
        } else {
            Method cancelAllNotificationsMethod = clazz.getMethod("cancelAllNotifications", String.class, int.class);
            cancelAllNotificationsMethod.invoke(obj, pkg, 0);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

如何通过反射调用cancelAllNotifications（String）方法（在android.app.INotificationManager中）

1 个答案: