For example, if your app needs to read the user's address book, the app needs the READ_CONTACTS permission. But if your app uses an intent to request information from the user's Contacts app, your app does not need any permissions, but the Contacts app does need to have that permission. For more information, see Consider Using an Intent.
http://developer.android.com/training/permissions/declaring.html#perm-needed刚好最近在看这个文档,不知道是不是我理解的太浅显了,反正入门这一章我还没完全看完。
就是一个 app 调用另外一个 app 的东西不需要相关权限,被调的 app 需要有权限,我昨晚用支付宝给别人充话费,看起来选人的界面应该是调用联系人 app 里的,所以按照文档里的说法只要联系人 app 有联系人权限就行了,支付宝不需要有联系人权限;但是选了人之后支付宝接收不到选择的联系人的号码,提示没有权限,我觉得这个现象跟上面文档里说的不太符合。