向内置摄像头应用发送命令 [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?

假设摄像头应用正在前台运行.现在，我不想点击屏幕上的摄像头按钮，而是希望我的后台服务要求摄像头应用程序拍照.如何实现?

我了解向相机应用发送意图的可能性，但是这需要点击屏幕上的按钮来拍照，或者创建自己的自定义相机应用，然后可以对其进行控制.但是我正在寻找一种方法(法律或黑客手段)，使内置摄像头应用程序可以接受我的拍照命令.

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.

我们为这些手机配备了物理摄像头按钮，按下这些按钮会触发某物，并向摄像头应用传达消息以进行拍照.我可以通过我的后台服务以某种方式触发某事吗?

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

如何将拍照命令发送到内置(默认)相机应用程序?

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

有数十个内置(默认)相机应用程序".设备制造商通常会自己运送.

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

我该如何实现?

How can I achieve this?

不要求任何相机应用程序(更不用说内置"应用程序)都支持允许第三方应用程序控制相机行为的任何类型的API，更不用说提供您要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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