问题
While I develop an Android App, I have a library which I have created as separate Android Studio project and can use it by inserting it into new projects. I insert the library by choosing 'File|New|Import Module...' option.
The thing is that after the import, Gradle creates a hard copy of my library. If I change the library code in main external project, the code inside the project which is using the library won't get updated.
How can I have a library and share it among many project? I need to change the library in one single place and then all other projects which are using it get the update.
I found this post also which has no answer:
How to update imported modules with code modification from the their external library project in Gradle/Android Studio
回答1:
OK I found the answer by myself:
You must not add the external library as an existing module. It will make a copy of it under your project folder.
What you have to do is:
1) Delete the library folder in your current project. 2) Open the 'setting.gradle' file and add these:
include ':your_external_library_module_name', ':perhaps_second_external_library'
project (':your_external_library_module_name').projectDir = new File('../path/to/your/external/library')
project (':perhaps_second_external_library').projectDir = new File('../path/to/your/second/external/library')
3) In your 'build.gradle' file add dependency as:
dependencies {
compile project(':your_external_library_module_name')
compile project(':perhaps_second_external_library')
}
4) Sync the project and you are done.
来源：https://stackoverflow.com/questions/32579557/how-to-update-an-imported-module-in-android-studio