Accessing SharedPreferences without context

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I have read question : this and this about reading shared preferences. But they still need Context to access SharedPreferences. I want to know how to access SharedPreferences without context. Thanks in advance


I solve my problem by retrieve ApplicationContext first (this) and then use that context to get SharedPreferences. thank K-ballo.

Accessing SharedPreferences Without Context, During android development, especially for a beginner like me the creepiest thing which I felt was Handling Contexts. Shared preferences is  During android development, especially for a beginner like me the creepiest thing which I felt was Handling Contexts. Shared preferences is really a cool thing if we want to save some handy information by the user on a device even if an app is killed. BUT context exceptions are everywhere. So here we will not. Read More


Application Class:

import android.app.Application;
import android.content.Context;

public class MyApplication extends Application {

    private static Context mContext;

    public void onCreate() {
        super.onCreate();
        mContext = getApplicationContext();
    }

    public static Context getAppContext() {
        return mContext;
    }

}

Declare the Application in the AndroidManifest:

<application android:name=".MyApplication"
    ...
/>

Usage:

PreferenceManager.getDefaultSharedPreferences(MyApplication.getAppContext());

Storing and Accessing SharedPreferences, In order to store data to the SharedPreferences you need to first instantiate an instance of sharedPreferences = getSharedPreferences("Settings", Context. If there is a need to edit a preferences file without user interaction, it can be done​  But, as you know, I cannot access SharedPreferences from a static method. I thought about passing in the context to the static methods, but that extends the number of classes out to four that I will need to modify, and the classes are already extending AsyncTask:


We can have SharedPreference instance to use in a helper class having Getters and Setters, Without involving context explained here

In MainActivity add

public static SharedPreferences preferences;
preferences = getSharedPreferences( getPackageName() + "_preferences", MODE_PRIVATE);

Then in PreferenceHelper use set and get as

public static void setName(String value) {
    MainActivity.preferences.edit().putString(KEY_DEMO_NAME, value ).commit();
}
public static String getName() {
    return MainActivity.preferences.getString(KEY_DEMO_NAME,"");
}

Best Practice - SharedPreferences, parse Preference file SharedPreferences preferences = context. key", defaultValue) // you can get all Map but be careful you must not modify the collection  Storing Data with SharedPreferences. In order to store data to the SharedPreferences you need to first instantiate an instance of the SharedPreferences like so. Specifying a Preference File SharedPreferences sharedPreferences = getSharedPreferences ("Settings", Context. MODE_PRIVATE); The string Settings is the name of the preference file you wish to access. If it does not exist, it will be created.


Android/Java, access to UserDefaults anywhere in my code for storing user settings and such​. Android requires a context to access SharedPreferences  📱 Working with Android Shared Preferences. to retrieve a SharedPreferences object for accessing context="com.sharedpreferences.HomeActivity


Getting a value from shared preferences, Will this static method keep context (Activity) all time and are there memory leaks​? A memory leak in Java is a situation where some objects are not used by  SharedPreferences sharedPreferences = getSharedPreferences("Settings", Context.MODE_PRIVATE); The string Settings is the name of the preference file you wish to access. If it does not exist, it will be created. The mode value of 0 designates the default behavior, which is to allow read access to only to the application.


Using Shared Preferences to save data locally in Android, SharedPreferences API in Android provides required methods to save and retrieve small key-value paired data in android. doesn't recommend saving confidential information in shared preferences without proper security. Using the getSharedPreferences() with a Context, we can open an existing  The actual SharedPreferences instance is created lazily because the delegate may be created before the Context is valid. Provided the value is not accessed or changed are not called until we have a valid Context then everything works nicely.