Android livedata doesn't observe new insert

A common issue!

LiveData in Android doesn't automatically observe new inserts in a database or a data source. This is because LiveData is designed to observe changes to a specific data source, not to automatically detect new data.

When you insert new data into a database or data source, LiveData won't automatically notify its observers. You need to explicitly notify the observers by calling setValue() or postValue() on the LiveData instance.

Here are a few ways to solve this issue:

Use a MediatorLiveData: You can create a MediatorLiveData that wraps your original LiveData instance. Then, you can use the MediatorLiveData to observe the new insert and notify the observers.

val mediatorLiveData = MediatorLiveData<List<MyData>>()
mediatorLiveData.addSource(originalLiveData) { data ->
 // Observe new inserts here
 if (data!= null && data.size > originalLiveData.value?.size) {
     mediatorLiveData.value = data
 }
}

Use a Flowable or Observable: If you're using Room or another database library, you can use a Flowable or Observable to observe the database changes. Then, you can convert the Flowable or Observable to a LiveData instance.
```
val flowable = myDatabase.myDao().getMyDataFlowable()
val liveData = flowable.toLiveData()
```

Use a ViewModel: If you're using a ViewModel, you can use the ViewModel to observe the new insert and notify the observers.

class MyViewModel(private val myDao: MyDao) : ViewModel() {
 private val _myData = MutableLiveData<List<MyData>>()
 val myData: LiveData<List<MyData>> = _myData

 init {
     myDao.insertMyData(myData) // Observe new inserts here
 }
}

Use a Room callback: If you're using Room, you can use a callback to observe the new insert.
```
@Dao
interface MyDao {
 @Insert
 fun insertMyData(myData: List<MyData>)
}
```

class MyViewModel(private val myDao: MyDao) : ViewModel() { private val _myData = MutableLiveData<List>() val myData: LiveData<List> = _myData

init {
    myDao.insertMyData(myData) // Observe new inserts here
}

}


Remember to always check the documentation for the specific library or framework you're using to ensure you're using the correct approach.

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Android livedata doesn't observe new insert