Android - 在前台动态获取当前活动 [英] Android - Dynamically Get the Current Activity in Foreground

问题描述

情况如下:

1. 在线程中触发了一个事件.
2. 需要检索当前活动.
3. 然后在该活动上创建一个对话框并显示出来.

问题:据我搜索，没有办法在前台检索当前活动.

Problems: As far as I've searched there is no way to retrieve the current activity in the foreground.

额外信息:这需要能够在多个活动中处理.因此，它可以在 Activity-A 或 B 或 C 中弹出.

Extra info: This needs to be able to be handled in multiple activities. So, it can be popped-up in Activity-A or B or C.

推荐答案

我不确定这是否是您要查找的内容，但看起来很简单.http://iamvijayakumar.blogspot.com/2011/09/get-current-activity-and-package-name.html

I'm not sure if this is what you're looking for, but it seemed pretty straightforward. http://iamvijayakumar.blogspot.com/2011/09/get-current-activity-and-package-name.html

  ActivityManager am = (ActivityManager) this .getSystemService(ACTIVITY_SERVICE);
  List<RunningTaskInfo> taskInfo = am.getRunningTasks(1);
  ComponentName componentInfo = taskInfo.get(0).topActivity;
  Log.d(WebServiceHelper.TAG, "CURRENT Activity ::" + taskInfo.get(0).topActivity.getClassName()+"   Package Name :  "+componentInfo.getPackageName());

希望这会有所帮助.

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