すべてのActivityとServiceを取得

// Activity
	public void getAllActivities(Context context){
		try {
			// : PackageName
			String packageName=context.getPackageName();
			// : PackageManager
			PackageManager packageManager=context.getPackageManager();
			// : PackageInfo
			PackageInfo packageInfo=packageManager.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
			// : ActivityInfo[]
			ActivityInfo[] activityInfoList = packageInfo.activities;
			// : Activity
			for (ActivityInfo activityInfo : activityInfoList) {
				 System.out.println(""+activityInfo.name);
			}
		} catch (Exception e) {
			// TODO: handle exception
		}
		
	}

// Service
	private void getAllServices(Context context){
		try {
			//  : PackageName
			String packageName = context.getPackageName();
			//  : PackageManager
			PackageManager packageManager = context.getPackageManager();
			//  : PackageInfo
			PackageInfo packageInfo = packageManager.getPackageInfo(packageName, PackageManager.GET_SERVICES);
			//  : ServiceInfo[]
			ServiceInfo[] serviceInfoList = packageInfo.services;
			//  : service
			for (ServiceInfo serviceInfo : serviceInfoList) {
				System.out.println("-------> " + serviceInfo.name);
			}
		} catch (Exception e) {
		}
		
	}