Not working on Android for com.facebook.katana

[wwwguy]

For some reason it isn't working on Android for detecting the installed Facebook app on the device. The test fails every time, even though the FB app is installed?

constructor(private appAvailability: AppAvailability) {

this.appAvailability.check('com.facebook.katana').then(
() => { // success callback
console.log('TEST success: com.facebook.katana');
},
() => { // error callback
console.log('TEST error: com.facebook.katana');
}
);

}

[joeysino]

The function does not return a promise, so you should not use .then()

constructor(private appAvailability: AppAvailability) {
  this.appAvailability.check(
    'com.facebook.katana',
    () => { // success callback
      console.log('TEST success: com.facebook.katana');
    },
    () => { // error callback
      console.log('TEST error: com.facebook.katana');
    }
  );
}

However, if you want to use Promises, we can turn the callbacks into promises with a wrapper function like this:

async function checkAppPromisified(appId: string) {
  return new Promise(resolve => {
    window.appAvailability.check(appId, () => resolve(true), (error) => resolve(false));
  });
}