向内置相机应用程序发送命令 [英] Sending command to the in-built camera app

问题描述

如何向内置(默认)相机应用发送拍照命令?

How can I send take a picture command to the in-built (default) camera app?

假设相机应用在前台运行.现在，我希望我的后台服务要求相机应用程序拍照，而不是点击屏幕上的相机按钮.如何实现?

我了解向相机应用发送意图的可能性，但这需要点击屏幕按钮来拍照，或者创建我自己的自定义相机应用程序，然后可以控制.但我正在寻找一种方法(合法或黑客)使内置相机应用程序能够接受我的拍照命令.

I understand the possibility of sending an intent to the camera app, but that would then need a tap on the on-screen button to take a picture, or creating my own custom camera app which can then be controlled. But I am looking for a way (legal or hack) to make the in-built camera app receptive to my take a picture command.

我们有这些带有物理相机按钮的手机，按下它会触发某事，并向相机应用传送信息以拍照.我可以以某种方式从我的后台服务中触发某事吗?

We have these phones with physical camera buttons, pressing which triggers something and convey a message to the camera app to take a picture. Can I somehow trigger that something from my background service?

推荐答案

如何向内置(默认)相机应用发送拍照命令?

How can I send take a picture command to the in-built (default) camera app?

有数十种内置(默认)相机应用程序".设备制造商通常会自行发货.

There are dozens of "in-built (default) camera apps". Device manufacturers usually ship their own.

我怎样才能做到这一点?

How can I achieve this?

不要求任何相机应用(更不用说内置"应用)支持允许第三方应用控制相机行为的任何类型的 API，更不用说提供您所描述的特定访问权限了.

There is no requirement that any camera app, let alone an "in-built" one, support any sort of API that allows third-party apps to control the camera behavior, let alone offer the specific access that you are describing.

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