PreferenceHelper.java

package net.miz_hi.smileessence.preference;

import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import net.miz_hi.smileessence.preference.EnumPreferenceKey.EnumValueType;

public class PreferenceHelper
{

    private SharedPreferences preference;

    public PreferenceHelper(SharedPreferences pref)
    {
        this.preference = pref;
    }

    public void putPreferenceValue(EnumPreferenceKey key, Object value)
    {
        putPreferenceValue(key.getKey(), key.getType(), value);
    }

    public <T> T getPreferenceValue(EnumPreferenceKey key)
    {
        return (T) getPreferenceValue(key.getKey(), key.getType(), key.getDefaultValue());
    }

    public void putPreferenceValue(String key, EnumValueType type, Object value)
    {
        Editor editor = preference.edit();
        if (type == EnumValueType.BOOLEAN)
        {
            editor.putBoolean(key, (Boolean) value);
        }
        else if (type == EnumValueType.STRING)
        {
            editor.putString(key, (String) value);
        }
        else if (type == EnumValueType.INTEGER)
        {
            editor.putInt(key, (Integer) value);
        }
        else if (type == EnumValueType.FLOAT)
        {
            editor.putFloat(key, (Float) value);
        }
        else if (type == EnumValueType.LONG)
        {
            editor.putLong(key, (Long) value);
        }

        editor.commit();
    }

    public <T> T getPreferenceValue(String key, EnumValueType type, T defaultValue)
    {
        if (type == EnumValueType.BOOLEAN)
        {
            return (T) (Boolean) preference.getBoolean(key, (Boolean) defaultValue);
        }
        else if (type == EnumValueType.STRING)
        {
            return (T) preference.getString(key, (String) defaultValue);
        }
        else if (type == EnumValueType.INTEGER)
        {
            return (T) (Integer) preference.getInt(key, (Integer) defaultValue);
        }
        else if (type == EnumValueType.FLOAT)
        {
            return (T) (Float) preference.getFloat(key, (Float) defaultValue);
        }
        else if (type == EnumValueType.LONG)
        {
            return (T) (Long) preference.getLong(key, (Long) defaultValue);
        }
        else
        {
            return defaultValue;
        }
    }
}