SettingsProvider 工具类

记录一下项目用到的工具类
/**
 * SettingsProvider对数据进行了分类，分别是Global、System、Secure三种类型，它们的区别如下：
 * Global：所有的偏好设置对系统的所有用户公开，第三方APP有读没有写的权限；
 * System：包含各种各样的用户偏好系统设置；
 * Secure：安全性的用户偏好系统设置，第三方APP有读没有写的权限。
 */
public class DataUtil {

    private static volatile DataUtil dataUtil;

    private Context mContext;

    private DataUtil(Context mContext){
        this.mContext = mContext;
    }

    public static DataUtil getInstance(Context context){
        if(dataUtil == null){
            synchronized (DataUtil.class){
                if(dataUtil == null){
                    dataUtil = new DataUtil(context);
                }
            }
        }
        return dataUtil;
    }

    /**
     * 保存Global数据
     * @param key
     * @param value
     */
    public void putGlobalData(String key, Object value){
        if(value instanceof String){
            Settings.Global.putString(mContext.getContentResolver(), key, (String) value);
        }else if(value instanceof Integer){
            Settings.Global.putInt(mContext.getContentResolver(), key, ((Integer) value).intValue());
        }else if(value instanceof Long){
            Settings.Global.putLong(mContext.getContentResolver(), key, ((Long) value).longValue());
        }else if(value instanceof Boolean){
            Settings.Global.putInt(mContext.getContentResolver(), key, ((Boolean) value).booleanValue()?1:0);
        }else{
            throw new IllegalArgumentException("not support value type!");
        }
    }

    /**
     * 获取Global数据
     * @param key
     * @param defValue 默认值
     */
    public Object getGlobalData(String key,Object defValue){
        if(defValue instanceof String){
            String data = Settings.Global.getString(mContext.getContentResolver(), key);
            return data == null?defValue:data;
        }else if(defValue instanceof Integer){
            return Settings.Global.getInt(mContext.getContentResolver(), key, ((Integer) defValue).intValue());
        }else if(defValue instanceof Long){
            return Settings.Global.getLong(mContext.getContentResolver(), key, ((Long) defValue).longValue());
        }else if(defValue instanceof Boolean){
            int intData = Settings.Global.getInt(mContext.getContentResolver(), key, ((Boolean) defValue).booleanValue()?1:0);
            return intData == 1?true:false;
        }else {
            throw new IllegalArgumentException("not support value type!");
        }
    }

    /**
     * 保存System数据
     * @param key
     * @param value
     */
    public void putSystemData(String key, Object value){
        if(value instanceof String){
            Settings.System.putString(mContext.getContentResolver(), key, (String) value);
        }else if(value instanceof Integer){
            Settings.System.putInt(mContext.getContentResolver(), key, ((Integer) value).intValue());
        }else if(value instanceof Long){
            Settings.System.putLong(mContext.getContentResolver(), key, ((Long) value).longValue());
        }else if(value instanceof Boolean){
            Settings.System.putInt(mContext.getContentResolver(), key, ((Boolean) value).booleanValue()?1:0);
        }else{
            throw new IllegalArgumentException("not support value type!");
        }
    }

    /**
     * 获取System数据
     * @param key
     * @param defValue 默认值
     */
    public Object getSystemData(String key,Object defValue){
        if(defValue instanceof String){
            String data = Settings.System.getString(mContext.getContentResolver(), key);
            return data == null?defValue:data;
        }else if(defValue instanceof Integer){
            return Settings.System.getInt(mContext.getContentResolver(), key, ((Integer) defValue).intValue());
        }else if(defValue instanceof Long){
            return Settings.System.getLong(mContext.getContentResolver(), key, ((Long) defValue).longValue());
        }else if(defValue instanceof Boolean){
            int intData = Settings.System.getInt(mContext.getContentResolver(), key, ((Boolean) defValue).booleanValue()?1:0);
            return intData == 1?true:false;
        }else {
            throw new IllegalArgumentException("not support value type!");
        }
    }

    /**
     * 保存Secure数据
     * @param key
     * @param value
     */
    public void putSecureData(String key, Object value){
        if(value instanceof String){
            Settings.Secure.putString(mContext.getContentResolver(), key, (String) value);
        }else if(value instanceof Integer){
            Settings.Secure.putInt(mContext.getContentResolver(), key, ((Integer) value).intValue());
        }else if(value instanceof Long){
            Settings.Secure.putLong(mContext.getContentResolver(), key, ((Long) value).longValue());
        }else if(value instanceof Boolean){
            Settings.Secure.putInt(mContext.getContentResolver(), key, ((Boolean) value).booleanValue()?1:0);
        }else{
            throw new IllegalArgumentException("not support value type!");
        }
    }

    /**
     * 获取Secure数据
     * @param key
     * @param defValue 默认值
     */
    public Object getSecureData(String key,Object defValue){
        if(defValue instanceof String){
            String data = Settings.Secure.getString(mContext.getContentResolver(), key);
            return data == null?defValue:data;
        }else if(defValue instanceof Integer){
            return Settings.Secure.getInt(mContext.getContentResolver(), key, ((Integer) defValue).intValue());
        }else if(defValue instanceof Long){
            return Settings.Secure.getLong(mContext.getContentResolver(), key, ((Long) defValue).longValue());
        }else if(defValue instanceof Boolean){
            int intData = Settings.Secure.getInt(mContext.getContentResolver(), key, ((Boolean) defValue).booleanValue()?1:0);
            return intData == 1?true:false;
        }else {
            throw new IllegalArgumentException("not support value type!");
        }
    }
}