" class="reference-link">Prefer

Prefer is android advanced sharedpreference library.

Supporting Integer, String, Float, Long, Boolean.

Functions

init prefer class with context

public static void init(@NonNull Context context);
public static void init(@NonNull Context context, @NonNull String fileName);

you can get sharedpreference object

public static synchronized SharedPreferences getSharedPreferences();

set/get key-value pair

public static void set(@NonNull String key, @NonNull Object value);
public static <T> T get(@NonNull String key, @NonNull T defaultValue);

Init Prefer

init prefer AppApplication.java

class AppApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        Prefer.init(this);
    }
}

add application in AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="net.jspiner.preferlib">
    <application
        android:allowBackup="true"
        android:name=".AppApplication" <-- this line
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" ></action>
                <category android:name="android.intent.category.LAUNCHER" ></category>
            </intent-filter>
        </activity>
    </application>
</manifest>

Set value

Prefer automatically check the type of this and save it.
It’s very simple.

Before you know Prefer

    void setDataUsingSharedPreference(){
        SharedPreferences sharedPreferences;
        SharedPreferences.Editor editor;
        sharedPreferences = getBaseContext().getSharedPreferences("data", MODE_PRIVATE);
        editor = sharedPreferences.edit();
        editor.putInt("int1", 1);
        editor.putInt("int2", 2);
        editor.putString("string1", "hello1");
        editor.putBoolean("boolean", true);
        editor.putFloat("float1", 1.3f);
        editor.commit();
        // very complex...
    }

After you know Prefer

    void setDataUsingPrefer(){
        Prefer.set("int1", 1);
        Prefer.set("int2", 2);
        Prefer.set("string1", "hello1");
        Prefer.set("boolean", true);
        Prefer.set("float1", 1.3f);
        // awesome! very simple!
    }

Get Value

Using default value, the type is automatically checked and loaded.

Before you know Prefer

    void getDataUsingSharedPreference(){
        SharedPreferences sharedPreferences;
        SharedPreferences.Editor editor;
        sharedPreferences = getBaseContext().getSharedPreferences("data", MODE_PRIVATE);
        editor = sharedPreferences.edit();
        int int1 = sharedPreferences.getInt("int1", 0);
        int int2 = sharedPreferences.getInt("int2", 2);
        String string1 = sharedPreferences.getString("string1", "none");
        Boolean boolean1 = sharedPreferences.getBoolean("boolean", true);
        Float float1 = sharedPreferences.getFloat("float1", 0f);
        // too many functions.... very very complex
    }

After you know Prefer

    void getDataUsingPrefer(){
        int int1 = Prefer.get("int1", 0);
        int int2 = Prefer.get("int2", 0);
        String string1 = Prefer.get("string1", "none");
        Boolean boolean1 = Prefer.get("boolean1", true);
        Float float1 = Prefer.get("float1", 0f);
        // Automatically cast everything to as single function!!
        // Amaaaaaazing!
    }