package safeluck.drive.evaluation.util;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.Map;
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import android.content.Context;
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import android.content.SharedPreferences;
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public class SPUtils
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{
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/**
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* 保存在手机里面的文件名
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*/
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public static final String FILE_NAME = "share_data";
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public static final String DES_HEX_PWD = "des_pwd";
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public static final String PLATFORM_IP = "platform_ip";
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public static final String PLATFORM_PORT = "platform_port";
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public static final String MAP_PATH = "map_path";
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public static final String CAR_PATH = "car_path";
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public static final String TRAIN_MODE = "training_mode";
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public static final String FAIL_PROJ_SNS = "failed_projs_sns";
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public static final String ROAD_MAP_PATH = "road_map_path";
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public static final String STU_SIGN_STATUS = "stu_sign_";
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public static final String Coach_SIGN_STATUS = "coach_sign_";
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/**
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* 保存数据的方法，我们需要拿到保存数据的具体类型，然后根据类型调用不同的保存方法
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*
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* @param context
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* @param key
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* @param object
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*/
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public static void put(Context context, String key, Object object)
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{
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
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Context.MODE_PRIVATE);
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SharedPreferences.Editor editor = sp.edit();
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if (object instanceof String)
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{
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editor.putString(key, (String) object);
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} else if (object instanceof Integer)
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{
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editor.putInt(key, (Integer) object);
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} else if (object instanceof Boolean)
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{
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editor.putBoolean(key, (Boolean) object);
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} else if (object instanceof Float)
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{
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editor.putFloat(key, (Float) object);
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} else if (object instanceof Long)
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{
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editor.putLong(key, (Long) object);
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} else
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{
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editor.putString(key, object.toString());
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}
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SharedPreferencesCompat.apply(editor);
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}
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/**
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* 得到保存数据的方法，我们根据默认值得到保存的数据的具体类型，然后调用相对于的方法获取值
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*
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* @param context
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* @param key
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* @param defaultObject
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* @return
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*/
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public static Object get(Context context, String key, Object defaultObject)
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{
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
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Context.MODE_PRIVATE);
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if (defaultObject instanceof String)
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{
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return sp.getString(key, (String) defaultObject);
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} else if (defaultObject instanceof Integer)
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{
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return sp.getInt(key, (Integer) defaultObject);
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} else if (defaultObject instanceof Boolean)
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{
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return sp.getBoolean(key, (Boolean) defaultObject);
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} else if (defaultObject instanceof Float)
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{
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return sp.getFloat(key, (Float) defaultObject);
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} else if (defaultObject instanceof Long)
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{
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return sp.getLong(key, (Long) defaultObject);
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}
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return null;
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}
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/**
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* 移除某个key值已经对应的值
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* @param context
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* @param key
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*/
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public static void remove(Context context, String key)
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{
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
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Context.MODE_PRIVATE);
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SharedPreferences.Editor editor = sp.edit();
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editor.remove(key);
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SharedPreferencesCompat.apply(editor);
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}
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/**
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* 清除所有数据
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* @param context
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*/
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public static void clear(Context context)
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{
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
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Context.MODE_PRIVATE);
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SharedPreferences.Editor editor = sp.edit();
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editor.clear();
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SharedPreferencesCompat.apply(editor);
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}
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/**
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* 查询某个key是否已经存在
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* @param context
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* @param key
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* @return
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*/
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public static boolean contains(Context context, String key)
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{
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
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Context.MODE_PRIVATE);
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return sp.contains(key);
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}
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/**
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* 返回所有的键值对
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*
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* @param context
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* @return
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*/
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public static Map<String, ?> getAll(Context context)
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{
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SharedPreferences sp = context.getSharedPreferences(FILE_NAME,
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Context.MODE_PRIVATE);
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return sp.getAll();
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}
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/**
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* 创建一个解决SharedPreferencesCompat.apply方法的一个兼容类
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*
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* @author zhy
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*
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*/
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private static class SharedPreferencesCompat
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{
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private static final Method sApplyMethod = findApplyMethod();
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/**
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* 反射查找apply的方法
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*
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* @return
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*/
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@SuppressWarnings({ "unchecked", "rawtypes" })
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private static Method findApplyMethod()
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{
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try
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{
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Class clz = SharedPreferences.Editor.class;
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return clz.getMethod("apply");
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} catch (NoSuchMethodException e)
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{
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}
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return null;
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}
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/**
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* 如果找到则使用apply执行，否则使用commit
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*
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* @param editor
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*/
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public static void apply(SharedPreferences.Editor editor)
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{
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try
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{
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if (sApplyMethod != null)
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{
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sApplyMethod.invoke(editor);
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return;
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}
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} catch (IllegalArgumentException e)
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{
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} catch (IllegalAccessException e)
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{
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} catch (InvocationTargetException e)
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{
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}
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editor.commit();
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}
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}
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}
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