的权限模型与Android棉花糖改变。你应该阅读这篇 https://developer.android.com/training/permissions/requesting.html 文章第一！大多数你的问题将得到解答。

The permission model changed with Android Marshmallow. You should read this https://developer.android.com/training/permissions/requesting.html article first! Most of your question will be answered.