【Android】编程检查服务是否可用, service available programmally

来源：互联网发布：供应链反应矩阵编辑：程序博客网时间：2024/04/28 14:42

检查服务是否可用:

    /**     * check service is available or not     *     * @param context Context to get the pack manager     * @param cls     service to query     * @return boolean true if available, false not     * @throws NullPointerException context cannot be null     */    public boolean isServiceAvailable(Context context, Class<?> cls) {        if (context == null || cls == null)            throw new NullPointerException("context or cls either can be null when querying the service");        final PackageManager packageManager = context.getPackageManager();        final Intent intent = new Intent(context, cls);        List<ResolveInfo> resolveInfo = packageManager.queryIntentServices(intent,                PackageManager.MATCH_DEFAULT_ONLY);        return resolveInfo.size() > 0;    }

注释写法：

@param
@return
@throws
可以子文档化啊，尽量用英文写吧^^

阿姨又要关门了，走了~~

转载署源-ByKyleCe: http://blog.csdn.net/KyleCeshen/article/details/50302097

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