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What is the procedure to decide which fragment should be loaded based on the value obtained through Android DataStore?

asked 2022-01-10 11:00:00 +0000

devzero gravatar image

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answered 2022-03-08 05:00:00 +0000

lakamha gravatar image
  1. Define the Key for the DataStore value you want to retrieve in your app.
  2. Create an instance of the DataStore.
  3. Use the DataStore instance to retrieve the value associated with the key.
  4. Use an if statement or switch case to compare the retrieved value with the desired criteria.
  5. Based on the comparison, load the appropriate fragment using FragmentManager and FragmentTransaction.

Here's an example code snippet:

val dataStore = applicationContext.createDataStore("myDataStore")

val myKey = preferencesKey<String>("myKey")

val myValue = dataStore.data.map { preferences ->
    preferences[myKey] ?: "default"
}

if (myValue == "fragment1") {
    supportFragmentManager.beginTransaction()
        .replace(R.id.fragment_container, Fragment1())
        .commit()
} else if (myValue == "fragment2") {
    supportFragmentManager.beginTransaction()
        .replace(R.id.fragment_container, Fragment2())
        .commit()
} else {
    // default value or other cases
}
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Asked: 2022-01-10 11:00:00 +0000

Seen: 1 times

Last updated: Mar 08 '22