上虞做网站公司,数据库查询网站模板,网站建设只是,网站开发ide腾讯MMKV使用 implementation com.tencent:mmkv-static:1.2.9 MMKV.initialize(this);//会返回MMVK存储的目录#xff08;String#xff09; 创建MMKV#xff0c;可以通过 defaultMMKV() 来创建#xff0c;这个是全局默认的#xff1b;也可以通过 mmkvWithID() 对应自己业…腾讯MMKV使用 implementation com.tencent:mmkv-static:1.2.9 MMKV.initialize(this);//会返回MMVK存储的目录String 创建MMKV可以通过 defaultMMKV() 来创建这个是全局默认的也可以通过 mmkvWithID() 对应自己业务来创建  MMKV mmkv MMKV.defaultMMKV();MMKV mmkv2 MMKV.mmkvWithID(mmapID);//写入Intmmkv.encode(keyName1, 123);//写入Stringmmkv.encode(keyName2, Text);//写入Booleanmmkv.encode(keyName3, false);//写入Longmmkv.encode(keyName4, 22.56f);LgqLogPlus.d(mmkv mmkv.decodeInt(keyName1,22));LgqLogPlus.d(mmkvkeyName3 mmkv.decodeFloat(keyName4));方法一  保存 ListIndustryListEntity indutryEntityList new ArrayList();//行业id 名称 还有很多 indutryEntityList.addAll(FastJsonUtils.getObjectsList(t.getData(), IndustryListEntity.class)); for (int i 0; i indutryEntityList.size(); i) {industryId String.valueOf(indutryEntityList.get(i).getIndustryId());//把数字变成String 行业idString industryNm indutryEntityList.get(i).getIndustryNm();//行业名称SharedPreferences sharedPreferences getSharedPreferences(industryInfo, Context.MODE_PRIVATE); //私有数据SharedPreferences.Editor editor sharedPreferences.edit();//获取编辑器editor.putString(industryNm, industryId);//名称 ideditor.putString(industryId, industryNm);//id 名称editor.commit();//提交修改industryList.add(industryNm);//行业id 行业名称 获取最终行业名称列表} 读取 SharedPreferences share getSharedPreferences(industryInfo, Activity.MODE_PRIVATE); String industryOne share.getString(item, );//名称 获取id 方法二 添加依赖 implementation com.google.code.gson:gson:2.8.5 1、创建对象 public class TestBean {String name;String title;int id; } 2、创建保存工具类 private static void initContext() {if (mContext null){mContext App.instance(); // sp mContext.getSharedPreferences(lg, 0);}sp mContext.getSharedPreferences(lg, 0);} /*** author : LGQ* date : 2020/04/29 15* desc :*/public class ShareUtil {private static SharedPreferences sp;private static Context mContext;// preferences.edit().clear().commit(); 清空数据private static void initContext() {if (mContext null){mContext MyAPP.getTotalContext();sp mContext.getSharedPreferences(lg, 0);}}public static int getSharedInt(String key){initContext();int re 0;re sp.getInt(key, -1);return re;}public static int getSharedInt(int nResID) {initContext();return sp.getInt(mContext.getString(nResID), 0);}public static String getSharedString(int nResID) {initContext();return sp.getString(mContext.getString(nResID), );}public static String getSharedString(String key){initContext();String s sp.getString(key,);return s;}public static long getSharedlong(String key){initContext();long s sp.getLong(key, 0);return s;}public static long getSharedlong(int nResID){initContext();long s sp.getLong(mContext.getString(nResID), 0);return s;}public static void sharedPint(String key,int value){initContext();SharedPreferences.Editor editor sp.edit();editor.putInt(key, value);editor.commit();}public static void sharedPint(int nResID, int content) {initContext();sp.edit().putInt(mContext.getString(nResID), content).commit();}public static void sharedPstring(int nResID, String strContent) {initContext();if (isEmpty(strContent)){strContent ;}sp.edit().putString(mContext.getString(nResID), strContent).commit();}public static void editLong(int nResID, long content) {initContext();sp.edit().putLong(mContext.getString(nResID), content).commit();}public static void editLong(String strKey, long content) {initContext();sp.edit().putLong(strKey, content).commit();}public static void sharedPstring(String key,String value){initContext();SharedPreferences.Editor editor sp.edit();editor.putString(key,value);editor.commit();}public static void deleP(){initContext();sp mContext.getSharedPreferences(lg,0);sp.edit().clear().commit();}public static boolean isEmpty(String input) {if (input null || .equals(input) || input.equals(null))return true;for (int i 0; i input.length(); i) {char c input.charAt(i);if (c ! c ! \t c ! \r c ! \n) {return false;}}return true;} }付APP代码 private static Context mTotalContext; mTotalContext this.getApplicationContext(); public static Context getTotalContext() {return mTotalContext; } 3、创建格式转换Gson解析工具类 /*** author : LGQ* date : 2020/04/29 15* desc :*/ public class GsonUtils {private static Gson mGSon (new GsonBuilder()).disableHtmlEscaping().create();public static String parseObjToJsonStr(Object srcObj) {String result ;if (mGSon null) {mGSon (new GsonBuilder()).disableHtmlEscaping().create();}try {result mGSon.toJson(srcObj);} catch (Exception var4) {Log.getStackTraceString(var4);}return result;}public static T T parseJsonStrToObj(String src, ClassT classOfT) {if (TextUtils.isEmpty(src)) {return null;} else {T result null;if (mGSon null) {mGSon (new GsonBuilder()).disableHtmlEscaping().create();}try {result mGSon.fromJson(src, classOfT);} catch (Exception var5) {Log.getStackTraceString(var5);}return result;}}public static T T parseJsonStrToObj(String json, Type typeOfT) {T result null;if (mGSon null) {mGSon (new GsonBuilder()).disableHtmlEscaping().create();}try {result mGSon.fromJson(json, typeOfT);} catch (Exception var5) {Log.getStackTraceString(var5);}return result;} }4、调用即可 TestBean testBean new TestBean(); testBean.id6; testBean.nameabbc; testBean.title标题;ListTestBean list new ArrayList(); list.add(testBean);ShareUtil.sharedPstring(te1,GsonUtils.parseObjToJsonStr(testBean)); ShareUtil.sharedPstring(te12,GsonUtils.parseObjToJsonStr(list));TestBean testBean1 getUserInfoBean(); Log.i(lgq00000000000000 ,testBean1.name);ListTestBean list2 new ArrayList(); list2 getList(); Log.i(lgq055555000 ,list2.get(0).title); public static TestBean getUserInfoBean() {return GsonUtils.parseJsonStrToObj(ShareUtil.getSharedString(te1), TestBean.class); } public static ListTestBean getList(){return GsonUtils.parseJsonStrToObj(ShareUtil.getSharedString(te12),new TypeTokenArrayListTestBean(){}.getType()); } 保存搜索历史工具方法 去重 /*** 保存历史数据 * */ public static boolean baocun(String name){boolean ifend false;boolean ifyou false;String ss ShareUtil.getSharedString(lishi1);ListString list new ArrayList();if (TextUtils.isEmpty(ss)){list.add(name);}else {Gson gson new Gson();list gson.fromJson(ss, new TypeTokenListString() {}.getType());for (int c 0;clist.size();c){if (list.get(c).equals(name)){ifyou true;break;}else {ifyou false;}}if (ifyoufalse){list.add(name);}}String as MyUtils.parseObjToJsonStr(list);ShareUtil.sharedPstring(lishi1,as);ifend true;return ifend; } /*** 保存历史数据 * */ public static boolean baocun(String name){boolean ifend false;String ss ShareUtil.getSharedString(lishi1);ListString list new ArrayList();if (TextUtils.isEmpty(ss)){list.add(name);}else {Gson gson new Gson();list gson.fromJson(ss, new TypeTokenListString() {}.getType());list.add(name);}String as MyUtils.parseObjToJsonStr(list);ShareUtil.sharedPstring(lishi1,as);ifend true;return ifend; }/*** 读取历史数据* */public static ListString getbaocunList(){ListString list new ArrayList();String ss ShareUtil.getSharedString(lishi1);if (TextUtils.isEmpty(ss)){}else {Gson gson new Gson();list gson.fromJson(ss, new TypeTokenListString() {}.getType());}return list; } /*** 删除历史数据* */public static boolean delebaocun(int point){boolean ifend false;ListString list new ArrayList();String ss ShareUtil.getSharedString(lishi1);LgqLog.e(删除数据 ss);if (TextUtils.isEmpty(ss)){ifendfalse;}else {Gson gson new Gson();list gson.fromJson(ss, new TypeTokenListString() {}.getType());list.remove(point);}String as MyUtils.parseObjToJsonStr(list);ShareUtil.sharedPstring(lishi1,as);return ifend; } 搜索历史 1、导入依赖 //搜索历史记录 implementation com.wenwenwen888:searchbox:1.0.1 implementation com.android.support:recyclerview-v7:26.0.0-beta2 2、引用 implements IOnSearchClickListener private SearchFragment searchFragment; searchFragment SearchFragment.newInstance();searchFragment.setOnSearchClickListener(this); searchFragment.showFragment(getSupportFragmentManager(), SearchFragment.TAG); 附件 public class MyAPP extends Application {private static Context mTotalContext;Overridepublic void onCreate() {super.onCreate();mTotalContext this.getApplicationContext();}public static Context getTotalContext() {return mTotalContext;} }