copy function in kotlin not working with livedata
The copy
function in Kotlin is not directly compatible with LiveData
objects because LiveData
is designed to be immutable, and the copy
function is typically used with mutable objects. However, you can create a copy of a LiveData
object by following these steps:
Create a new instance of
LiveData
: Start by creating a newLiveData
object and assign it to a variable. This newLiveData
object will hold the copied data.Observe the original
LiveData
: Next, you need to observe the originalLiveData
object. This allows you to receive updates when the data changes.Update the copied
LiveData
object: Inside the observer, use thevalue
property of the originalLiveData
object to get the current value. Then, assign this value to the newLiveData
object you created in step 1.
Here is an example of how you can implement these steps:
val originalLiveData: LiveData<Data> = ...
var copiedLiveData: LiveData<Data> = MutableLiveData<Data>()
originalLiveData.observe(lifecycleOwner, Observer { data ->
copiedLiveData = MutableLiveData<Data>().apply {
value = data.copy() // Use the copy function of your data class
}
})
In this example, originalLiveData
is the original LiveData
object that you want to copy. Data
is the data class that holds the actual data. Replace Data
with your own data class.
Please note that the copy
function used in the example is a hypothetical function specific to your data class. You will need to replace data.copy()
with the appropriate copy function or copy mechanism for your specific data class.