Android本地實現搜尋歷史記錄
阿新 • • 發佈:2020-09-23
本文例項為大家分享了Android本地實現搜尋歷史記錄的具體程式碼,供大家參考,具體內容如下
一.自定義搜尋歷史記錄
本地實現搜尋歷史記錄有很多種方法,下面不多說了,我們來用SQLite來實現此功能,直接上完整程式碼:點選下載原始碼
效果一:
效果二:
1.MainActivity主函式
package com.example.administrator.searchapplication; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.text.Editable; import android.text.TextWatcher; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.inputmethod.EditorInfo; import android.widget.AdapterView; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity implements View.OnClickListener{ private EditText searchContentEt; private SearchRecordsAdapter recordsAdapter; private View recordsHistoryView; private ListView recordsListLv; private TextView clearAllRecordsTv; private LinearLayout searchRecordsLl; private List<String> searchRecordsList; private List<String> tempList; private RecordsDao recordsDao; private TextView tv_history; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initData(); bindAdapter(); initListener(); } private void initView() { // setHideHeader(); initRecordsView(); searchRecordsLl = (LinearLayout) findViewById(R.id.search_content_show_ll); searchContentEt = (EditText) findViewById(R.id.input_search_content_et); tv_history = (TextView) findViewById(R.id.tv_history); //新增搜尋view searchRecordsLl.addView(recordsHistoryView); } //初始化搜尋歷史記錄View private void initRecordsView() { recordsHistoryView = LayoutInflater.from(this).inflate(R.layout.search_lishi,null); //顯示歷史記錄lv recordsListLv = (ListView) recordsHistoryView.findViewById(R.id.search_records_lv); //清除搜尋歷史記錄 clearAllRecordsTv = (TextView) recordsHistoryView.findViewById(R.id.clear_all_records_tv); } private void initData() { recordsDao = new RecordsDao(this); searchRecordsList = new ArrayList<>(); tempList = new ArrayList<>(); tempList.addAll(recordsDao.getRecordsList()); reversedList(); //第一次進入判斷資料庫中是否有歷史記錄,沒有則不顯示 checkRecordsSize(); } private void bindAdapter() { recordsAdapter = new SearchRecordsAdapter(this,searchRecordsList); recordsListLv.setAdapter(recordsAdapter); } private void initListener() { clearAllRecordsTv.setOnClickListener(this); searchContentEt.setOnEditorActionListener(new TextView.OnEditorActionListener() { @Override public boolean onEditorAction(TextView v,int actionId,KeyEvent event) { if (actionId == EditorInfo.IME_ACTION_SEARCH) { if (searchContentEt.getText().toString().length() > 0) { String record = searchContentEt.getText().toString(); //判斷資料庫中是否存在該記錄 // if (!recordsDao.isHasRecord(record)) { // tempList.add(record); // } //將搜尋記錄儲存至資料庫中 recordsDao.addRecords(record); // reversedList(); // checkRecordsSize(); // recordsAdapter.notifyDataSetChanged(); Toast.makeText(MainActivity.this,"11",Toast.LENGTH_SHORT).show(); //根據關鍵詞去搜索 } else { Toast.makeText(MainActivity.this,"搜尋內容不能為空",Toast.LENGTH_SHORT).show(); } } return false; } }); //根據輸入的資訊去模糊搜尋 searchContentEt.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s,int start,int count,int after) { } @Override public void onTextChanged(CharSequence s,int before,int count) { } @Override public void afterTextChanged(Editable s) { if (s.toString().trim().length() == 0) { tv_history.setText("搜尋歷史"); } else { tv_history.setText("搜尋結果"); } String tempName = searchContentEt.getText().toString(); tempList.clear(); tempList.addAll(recordsDao.querySimlarRecord(tempName)); reversedList(); checkRecordsSize(); recordsAdapter.notifyDataSetChanged(); } }); //歷史記錄點選事件 recordsListLv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent,View view,int position,long id) { //將獲取到的字串傳到搜尋結果介面 //點選後搜尋對應條目內容 // searchContentEt.setText(searchRecordsList.get(position)); Toast.makeText(MainActivity.this,searchRecordsList.get(position)+"",Toast.LENGTH_SHORT).show(); searchContentEt.setSelection(searchContentEt.length()); } }); } //當沒有匹配的搜尋資料的時候不顯示歷史記錄欄 private void checkRecordsSize(){ if(searchRecordsList.size() == 0){ searchRecordsLl.setVisibility(View.GONE); }else{ searchRecordsLl.setVisibility(View.VISIBLE); } } @Override public void onClick(View v) { switch (v.getId()){ //清空所有歷史資料 case R.id.clear_all_records_tv: tempList.clear(); reversedList(); recordsDao.deleteAllRecords(); recordsAdapter.notifyDataSetChanged(); searchRecordsLl.setVisibility(View.GONE); searchContentEt.setHint("請輸入你要搜尋的內容"); break; } } //顛倒list順序,使用者輸入的資訊會從上依次往下顯示 private void reversedList(){ searchRecordsList.clear(); for(int i = tempList.size() - 1 ; i >= 0 ; i --) { searchRecordsList.add(tempList.get(i)); } } }
2.SearchRecordsAdapter介面卡
package com.example.administrator.searchapplication; /** * Created by Administrator on 2018/2/11. */ import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import java.util.List; /** * Created by 05 on 2016/7/27. */ public class SearchRecordsAdapter extends BaseAdapter { private Context context; private List<String> searchRecordsList; private LayoutInflater inflater; public SearchRecordsAdapter(Context context,List<String> searchRecordsList) { this.context = context; this.searchRecordsList = searchRecordsList; inflater = LayoutInflater.from(context); } @Override public int getCount() { //設定listView的顯示條目數量為5 return searchRecordsList.size() > 5 ? 5 : searchRecordsList.size(); } @Override public Object getItem(int position) { return searchRecordsList.size() == 0 ? null : searchRecordsList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position,View convertView,ViewGroup parent) { ViewHolder viewHolder; if(null == convertView){ viewHolder = new ViewHolder(); convertView = inflater.inflate(R.layout.list_item,null); viewHolder.recordTv = (TextView) convertView.findViewById(R.id.search_content_tv); convertView.setTag(viewHolder); }else{ viewHolder = (ViewHolder) convertView.getTag(); } String content = searchRecordsList.get(position); viewHolder.recordTv.setText(content); return convertView; } private class ViewHolder { TextView recordTv; } }
3.RecordSQLiteOpenHelper
package com.example.administrator.searchapplication; /** * Created by Administrator on 2018/2/11. */ import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; /** * 搜尋記錄幫助類 * Created by 05 on 2016/7/27. */ public class RecordSQLiteOpenHelper extends SQLiteOpenHelper { private final static String DB_NAME = "temp.db"; private final static int DB_VERSION = 1; public RecordSQLiteOpenHelper(Context context) { super(context,DB_NAME,null,DB_VERSION); } @Override public void onCreate(SQLiteDatabase db) { String sqlStr = "CREATE TABLE IF NOT EXISTS records (_id INTEGER PRIMARY KEY AUTOINCREMENT,name TEXT);"; db.execSQL(sqlStr); } @Override public void onUpgrade(SQLiteDatabase db,int oldVersion,int newVersion) { } }
4.RecordsDao
package com.example.administrator.searchapplication; /** * Created by Administrator on 2018/2/11. */ import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import java.util.ArrayList; import java.util.List; /** * 搜尋記錄操作類 * Created by 05 on 2016/7/27. */ public class RecordsDao { RecordSQLiteOpenHelper recordHelper; SQLiteDatabase recordsDb; public RecordsDao(Context context) { recordHelper = new RecordSQLiteOpenHelper(context); } //新增搜尋記錄 public void addRecords(String record) { if (!isHasRecord(record)) { recordsDb = recordHelper.getReadableDatabase(); ContentValues values = new ContentValues(); values.put("name",record); //新增 recordsDb.insert("records",values); //關閉 recordsDb.close(); } } //判斷是否含有該搜尋記錄 public boolean isHasRecord(String record) { boolean isHasRecord = false; recordsDb = recordHelper.getReadableDatabase(); Cursor cursor = recordsDb.query("records",null); while (cursor.moveToNext()) { if (record.equals(cursor.getString(cursor.getColumnIndexOrThrow("name")))) { isHasRecord = true; } } //關閉資料庫 recordsDb.close(); cursor.close(); return isHasRecord; } //獲取全部搜尋記錄 public List<String> getRecordsList() { List<String> recordsList = new ArrayList<>(); recordsDb = recordHelper.getReadableDatabase(); Cursor cursor = recordsDb.query("records",null); while (cursor.moveToNext()) { String name = cursor.getString(cursor.getColumnIndexOrThrow("name")); recordsList.add(name); } //關閉資料庫 recordsDb.close(); cursor.close(); return recordsList; } //模糊查詢 public List<String> querySimlarRecord(String record){ String queryStr = "select * from records where name like '%" + record + "%' order by name "; List<String> similarRecords = new ArrayList<>(); Cursor cursor= recordHelper.getReadableDatabase().rawQuery(queryStr,null); while (cursor.moveToNext()) { String name = cursor.getString(cursor.getColumnIndexOrThrow("name")); similarRecords.add(name); } cursor.close(); return similarRecords; } //清空搜尋記錄 public void deleteAllRecords() { recordsDb = recordHelper.getWritableDatabase(); recordsDb.execSQL("delete from records"); recordsDb.close(); } // 刪除 public int delete(int _id) { SQLiteDatabase db = recordHelper.getWritableDatabase(); int d = db.delete("records","_id=?",new String[] { _id + "" }); db.close(); return d; } }
5.主函式佈局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp"> <LinearLayout android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1"> <ImageView android:layout_width="30dp" android:layout_height="match_parent" android:layout_gravity="center_vertical" android:padding="5dp" android:src="@mipmap/ic_launcher" /> <EditText android:id="@+id/input_search_content_et" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="請輸入你要搜尋的內容" android:imeOptions="actionSearch" android:singleLine="true" /> <!-- 以上的singleLine和imeOptions屬性程式碼是將彈出的軟鍵盤的回車鍵替換成搜尋鍵的關鍵,當然也可以換成傳送鍵 等等,可以去查一下該屬性 --> </LinearLayout> <TextView android:id="@+id/search_content_cancel_tv" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="center_vertical" android:gravity="center" android:padding="10dp" android:text="取消" android:textSize="18sp" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:gravity="center|left" android:layout_height="30dp"> <TextView android:id="@+id/tv_history" android:layout_width="wrap_content" android:layout_marginLeft="20dp" android:text="搜尋歷史" android:layout_height="wrap_content" /> </LinearLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:id="@+id/search_content_show_ll" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"></LinearLayout> </RelativeLayout> </LinearLayout>
6.介面卡佈局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="40dp"> <TextView android:id="@+id/search_content_tv" android:layout_width="match_parent" android:layout_height="wrap_content" android:drawableLeft="@mipmap/ic_launcher_round" android:drawablePadding="8dp" android:layout_margin="10dp" android:layout_gravity="center_vertical" /> </LinearLayout> </LinearLayout>
7.搜尋佈局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> <ListView android:id="@+id/search_records_lv" android:layout_width="match_parent" android:layout_height="wrap_content"/> <View android:layout_width="match_parent" android:layout_height="0.1dp" android:background="@color/colorAccent"/> <TextView android:background="@color/colorPrimary" android:id="@+id/clear_all_records_tv" android:layout_width="match_parent" android:layout_height="40dp" android:textSize="16sp" android:gravity="center" android:text="清除歷史記錄"/> <View android:layout_width="match_parent" android:layout_height="0.1dp" android:background="@color/colorAccent"/> </LinearLayout> </LinearLayout>
ok,demo資源裡有
二.仿bilibili搜尋框效果(三句程式碼實現)
1.新增依賴:
apply plugin: 'com.android.application' android { compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } compileSdkVersion 29 buildToolsVersion "29.0.2" defaultConfig { applicationId "com.example.mysgfceshicase" minSdkVersion 15 targetSdkVersion 29 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),'proguard-rules.pro' } } packagingOptions { //解決編譯時com.android.builder.merge.DuplicateRelativeFileException: More than one file was found with OS independent path 'META-INF/rxjava.properties'這個錯誤 exclude 'META-INF/rxjava.properties' } } dependencies { implementation fileTree(dir: 'libs',include: ['*.jar']) implementation 'androidx.appcompat:appcompat:1.0.2' implementation 'androidx.constraintlayout:constraintlayout:1.1.3' testImplementation 'junit:junit:4.12' androidTestImplementation 'androidx.test.ext:junit:1.1.0' androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1' //noinspection GradleCompatible implementation 'com.android.support:recyclerview-v7:26.0.0-beta2' implementation 'com.android.support:cardview' + '-v7:26.0.0-beta2' testImplementation 'junit:junit:4.12' //仿轉轉輪播圖BAnner implementation 'com.tokiii:reveal-banner:1.0.1' //下拉重新整理、上拉載入、二級重新整理、淘寶二樓、RefreshLayout、OverScroll,Android智慧下拉重新整理框架,支援越界回彈、越界拖動, // 具有極強的擴充套件性,集成了幾十種炫酷的Header和 Footer implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.0' //1.0.5及以前版本的老使用者升級需謹慎,API改動過大 implementation 'com.scwang.smartrefresh:SmartRefreshHeader:1.1.0' //沒有使用特殊Header,可以不加這行 //炫酷的輪播圖效果 implementation 'com.github.ulez:dropindicator:0.0.2' //搜尋歷史記錄 implementation 'com.wenwenwen888:searchbox:1.0.1' implementation 'com.jakewharton:butterknife:10.0.0' annotationProcessor 'com.jakewharton:butterknife-compiler:10.0.0' //noinspection GradleCompatible implementation 'com.android.support:design:28.0.0' implementation 'io.reactivex:rxandroid:1.1.0' implementation 'io.reactivex:rxjava:1.1.0' // implementation 'com.trello.rxlifecycle2:rxlifecycle:2.2.1' // implementation 'com.trello.rxlifecycle2:rxlifecycle-android:2.2.1' // implementation 'com.trello.rxlifecycle2:rxlifecycle-components:2.2.1' implementation 'com.trello:rxlifecycle-components:0.6.1' implementation 'com.jakewharton.rxbinding:rxbinding:0.3.0' implementation 'com.jakewharton.rxbinding:rxbinding-appcompat-v7:0.3.0' implementation 'com.jakewharton.rxbinding:rxbinding-design:0.3.0' implementation 'com.github.bumptech.glide:glide:3.7.0' //gradle api ('com.alibaba.android:ultraviewpager:1.0.7.7@aar') { transitive = true } //首先引入gson庫 compile 'com.google.code.gson:gson:2.8.1' } //搜尋歷史記錄 implementation 'com.wenwenwen888:searchbox:1.0.1'
2.主要實現:
//第一句,例項化: SearchFragment searchFragment = SearchFragment.newInstance(); //第二句,設定回撥: searchFragment.setOnSearchClickListener(new IOnSearchClickListener() { @Override public void OnSearchClick(String keyword) { //這裡處理邏輯 Toast.makeText(ToolBarActivity.this,keyword,Toast.LENGTH_SHORT).show(); } }); //第三句,顯示搜尋框: searchFragment.showFragment(getSupportFragmentManager(),SearchFragment.TAG);
3.全部程式碼:
import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.widget.TextView; import com.example.mysgfceshicase.R; import com.wyt.searchbox.SearchFragment; import com.wyt.searchbox.custom.IOnSearchClickListener; import androidx.appcompat.app.AppCompatActivity; import androidx.appcompat.widget.Toolbar; import butterknife.BindView; import butterknife.ButterKnife; public class SearchActivity extends AppCompatActivity implements Toolbar.OnMenuItemClickListener,IOnSearchClickListener { @BindView(R.id.toolbar) Toolbar toolbar; @BindView(R.id.search_info) TextView searchInfo; private SearchFragment searchFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_search); ButterKnife.bind(this); toolbar.setTitle("SearchDialog");//標題 setSupportActionBar(toolbar); searchFragment = SearchFragment.newInstance(); toolbar.setOnMenuItemClickListener(this); searchFragment.setOnSearchClickListener(this); } @Override public boolean onCreateOptionsMenu(Menu menu) { //載入選單檔案 getMenuInflater().inflate(R.menu.menu_main,menu); return true; } @Override public boolean onMenuItemClick(MenuItem item) { switch (item.getItemId()) { case R.id.action_search://點選搜尋 searchFragment.showFragment(getSupportFragmentManager(),SearchFragment.TAG); break; } return true; } @Override public void OnSearchClick(String keyword) { searchInfo.setText(keyword); } }
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent"> <androidx.appcompat.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/colorPrimary" app:layout_scrollFlags="scroll|enterAlways" /> <TextView android:id="@+id/search_info" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@id/toolbar" android:gravity="center" android:text="Hello Android!" android:textSize="20sp" /> </RelativeLayout>
原始碼:搜尋歷史記錄
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。