问题
I want to make my app ready for instant apps. I have created an app module, base module and a feature module. if I run my project in this configuration everything works great.
when i implement the following lines inside my base module Gradle file.
annotationProcessor "android.arch.lifecycle:compiler:1.0.0"
api "android.arch.lifecycle:extensions:1.0.0"
the Gradle build succeeds but I lose my default activity and can't run the project. the default activity is inside my base module manifest.
if i change the extensions line with implementation.
implementation "android.arch.lifecycle:extensions:1.0.0"
the following error happens:
Error:Execution failed for task ':app:preDebugBuild'.
Android dependency 'android.arch.lifecycle:runtime' has different version for the compile (1.0.0) and runtime (1.0.3) classpath. You should manually set the same version via DependencyResolution
does anyone knows what the problem can be?
回答1:
When using the support lib 26.1.0 or higher the lifecycle functionality is included inside. by removing the following lib lines
annotationProcessor "android.arch.lifecycle:compiler:1.0.0"
api "android.arch.lifecycle:extensions:1.0.0"
and only using the :
implementation 'com.android.support:appcompat-v7:26.1.0'
everything was working again.
Official document reference
来源：https://stackoverflow.com/questions/47198686/android-architecture-components-with-instant-app