如何检测没有摄像头的可在Android设备？而且如果设备有前置摄像头如何使用它？ [英] How to detect no of camera's available in android device? and also if the device has front camera how to use it?

问题描述

如何检测没有摄像头的可在Android设备？而且如果设备有前置摄像头如何使用它？

How to detect no of camera's available in android device? and also if the device has front camera how to use it?

推荐答案

我的建议是类似doc_180的答案，但应能同时检测前后置摄像头即使是升级Froyo，但如果我没有记错，升级Froyo没有支持前置摄像头，让您总能获得的 frontCam 上升级Froyo一个错误的响应。

What I would suggest is similar to doc_180's answer, but should be able to detect both front and back facing cameras even for Froyo, though if I'm not mistaken, Froyo never supported front-facing cameras, so you'll always get a false response for frontCam on Froyo.

PackageManager pm = getPackageManager();
boolean frontCam, rearCam;

//Must have a targetSdk >= 9 defined in the AndroidManifest
frontCam = pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT);
rearCam = pm.hasSystemFeature(PackageManager.FEATURE_CAMERA);

编辑：刚刚意识到这是真的，真的老问题。哦，好吧，希望这可以帮助别人的未来。

Just realized this is a really, really old question. Oh well, hopefully it helps someone in the future.

这篇关于如何检测没有摄像头的可在Android设备？而且如果设备有前置摄像头如何使用它？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！