Android: Cannot read property 'start' of undefined

[VacuumDecay]

Hi, thanks for this repo.

I am unable to run this on Android as I get the error "Cannot read property 'start' of undefined" when attempting to invoke PerformanceStats.start(true);.

After some testing it seems that PerformanceStatsNativeModule is always undefined in /src/index.js and it appears this library is not built when I compile my app.

I'm on React Native version 0.64 and have am not yet using the new architecture. Seems like the autolinking hasn't worked unless I am missing something.

[eyupsincar]

I'm getting the same error, I guess it's not solved yet.

[mytabworks]

not working on android

[ccoltos]

Your latest version is calling wrong functions in Android PerformanceStatsImpl.java
You use:

double fps = mFrameCallback.getFPS();
double jsFps = mFrameCallback.getJSFPS();

and correct is:

double fps = mFrameCallback.getFps();
double jsFps = mFrameCallback.getJsFPS();

[BreakMySoul]

The following changes are effective for me.
This module calls the native methods of Android, so a implementation should be added.

1. Add the following lines to android/settings.gradle:

include ':react-native-performance-stats'
project(':react-native-performance-stats').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-performance-stats/android')

2.Add the implementation line to the dependencies in android/app/build.gradle:

dependencies {
  // ...
  implementation project(':react-native-performance-stats')
}