举例：<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
需求：debug有这个权限，release没有这个权限

一. 第一种是第三方库没有引入MANAGE_EXTERNAL_STORAGE权限，实现如下

app的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.demo"><uses-permission android:name="${MANAGE_EXTERNAL_STORAGE}"tools:node="merge"/><application.../>
</manifest>

app模块下build.gradle

android {...buildTypes {debug {...//debug提供真实权限manifestPlaceholders = [MANAGE_EXTERNAL_STORAGE: "android.permission.MANAGE_EXTERNAL_STORAGE"]}release {...//release提供com.example.demo.permission占位，有值才能编译过manifestPlaceholders = [MANAGE_EXTERNAL_STORAGE: "com.example.demo.permission"]}}
}

二.第二种是第三方库已经引入了MANAGE_EXTERNAL_STORAGE权限，实现如下

app的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.demo"><uses-permission android:name="${MANAGE_EXTERNAL_STORAGE}"tools:node="remove"/><application.../>
</manifest>

app模块下build.gradle

android {
...buildTypes {debug {...//debug提供com.example.demo.permission占位，有值才能编译过manifestPlaceholders = [MANAGE_EXTERNAL_STORAGE: "com.example.demo.permission"]}release {...//release提供真实权限manifestPlaceholders = [MANAGE_EXTERNAL_STORAGE: "android.permission.MANAGE_EXTERNAL_STORAGE"]}}
}