android.content.SharedPreferences.getAll() returns a Map containing all values from the SharedPreferences instance. Each key-value pair in the Map corresponds to a key-value pair in the SharedPreferences.
In this example, we first get the SharedPreferences instance named "MyPrefs" and create an editor to modify it. We then save a string value ("john_doe") and an integer value (25) using the editor's putString() and putInt() methods, respectively. Finally, we call apply() to save our changes and retrieve all saved preferences using getAll().
Example 2: Reading data from SharedPreferences SharedPreferences prefs = getSharedPreferences("MyPrefs", MODE_PRIVATE); Map allPrefs = prefs.getAll(); String username = (String) allPrefs.get("username"); int age = (int) allPrefs.get("age");
In this example, we simply retrieve the SharedPreferences instance named "MyPrefs" and call getAll() to get a Map containing all saved preferences. We then retrieve the values corresponding to the "username" and "age" keys using their get() methods and cast them appropriately.
The package library for SharedPreferences is android.content.
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