安卓NFC启动服务 [英] Android NFC start service

问题描述

我很好奇Android NFC service 是否允许开发者在 时启动Service(或IntentService)NFC 标签被扫描?

I'm curious if Android NFC service allows the developer to start a Service (or IntentService for that matter) when NFC tag is scanned?

来自 Android 开发者:

From Android Developers:

当设备扫描具有 NDEF 数据的标签但无法扫描时映射到 MIME 或 URI，标签调度系统尝试启动一个具有 ACTION_TECH_DISCOVERED 意图的 活动.

When a device scans a tag that has NDEF data on it, but could not be mapped to a MIME or URI, the tag dispatch system tries to start an activity with the ACTION_TECH_DISCOVERED intent.

似乎只能启动一个新的 Activity，而不能启动 Service，尽管它可以接收相同的 Intent 过滤器.

It appears that only a new Activity can be launched, not Service, although it could receive the same Intent filter.

推荐答案

虽然不是直接方法，但你可以有一个准系统Activity，它会立即启动一个服务，然后退出:

Although not the direct method, you could have a barebones Activity that will immediately start a service, then quit:

@Override
public void onCreate(Bundle savedInstanceState) {
  Context con = getApplicationContext();
  Intent srv = new Intent(con, TargetService.class);
  con.startService(srv);
  finish();
}

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