微信摄像头权限可以在手机系统的隐私功能里打开。
操作方法：
1.点击设置。
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https://iknow-pic.cdn.bcebos.com/c75c10385343fbf2190e3fd2bc7eca8065388f25"/>
2.点击隐私。
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https://iknow-pic.cdn.bcebos.com/eaf81a4c510fd9f940cbcb98292dd42a2934a467"/>
3.点击相机。
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https://iknow-pic.cdn.bcebos.com/9213b07eca806538bce13de29bdda144ad34823c"/>
4.可以看到微信后面的开关是关闭的。
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https://iknow-pic.cdn.bcebos.com/faf2b2119313b07e649fc9f900d7912397dd8c25"/>
5.点击一下微信后面的开关打开微信的访问权限。
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https://iknow-pic.cdn.bcebos.com/42a98226cffc1e17c04c12c04690f603728de954"/>
6.此时我们在打开微信，当我们需要拍照或者录像的时候就可以成功打开摄像头了。
/iknow-pic.cdn.bcebos.com/6c224f4a20a446238ad43c939422720e0cf3d721"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/6c224f4a20a446238ad43c939422720e0cf3d721?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/6c224f4a20a446238ad43c939422720e0cf3d721"/>