parent
ea4c90438d
commit
554c5fb676
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package com.example.myapplication;
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import android.app.Activity;
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import android.content.ContentValues;
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import android.content.Intent;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.LinearLayout;
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import android.widget.ListView;
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import android.widget.Toast;
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import java.util.ArrayList;
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import java.util.List;
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import Util.myutil;
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public class ElemeMainPage extends Activity implements View.OnClickListener {
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MyHelper myHelper ;
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SQLiteDatabase sqLiteDatabase;
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private List<Shop> ShopLists = new ArrayList<Shop>();
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main_layout);
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Button search_Icon = findViewById(R.id.search_Icon);
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search_Icon.setOnClickListener(this);
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myHelper= new MyHelper(this);
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sqLiteDatabase = myHelper.getWritableDatabase();
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initShops(sqLiteDatabase);
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ShopAdapter adapter = new ShopAdapter(ElemeMainPage.this, R.layout.food_shops, ShopLists);
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ListView listView = (ListView) findViewById(R.id.list_view);
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listView.setAdapter(adapter);
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Button order_btn = (Button) findViewById(R.id.orderbtn);
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myutil util = new myutil();
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util.setListener(order_btn, ElemeMainPage.this, News.class);
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listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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Shop shop = (Shop) listView.getItemAtPosition(position);
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Intent intent = new Intent(ElemeMainPage.this, OrderProcessingPage.class);
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Bundle bundle = new Bundle();
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bundle.putString("shop_name", shop.getShop_name());
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intent.putExtras(bundle);
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ElemeMainPage.this.startActivity(intent);
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}
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});
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}
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private void initShops(SQLiteDatabase sqLiteDatabase) {
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Cursor cursor = sqLiteDatabase.query("SHOPS", null, null, null, null, null, null);
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if (cursor.getCount() == 0) {
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return;
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} else {
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cursor.moveToFirst();
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ShopLists.add(new Shop(cursor.getInt(0),
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cursor.getString(1),cursor.getString(2)
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,cursor.getString(3),cursor.getInt(4),
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cursor.getInt(5),cursor.getInt(6),
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cursor.getString(7),cursor.getString(8),
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cursor.getString(9),cursor.getString(10),
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cursor.getString(11),cursor.getString(12)));
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}
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while (cursor.moveToNext()) {
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ShopLists.add(new Shop(cursor.getInt(0),
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cursor.getString(1),cursor.getString(2)
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,cursor.getString(3),cursor.getInt(4),
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cursor.getInt(5),cursor.getInt(6),
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cursor.getString(7),cursor.getString(8),
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cursor.getString(9),cursor.getString(10),
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cursor.getString(11),cursor.getString(12)));
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}
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cursor.close();
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sqLiteDatabase.close();
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}
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@Override
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public void onClick(View v) {
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switch (v.getId()){
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case R.id.search_Icon:
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EditText search_EditText = findViewById(R.id.search_EditText);
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String keyWord = search_EditText.getText().toString();
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if (keyWord.trim().equals(""))
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{
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SQLiteDatabase sqLiteDatabase;
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MyHelper myHelper = new MyHelper(ElemeMainPage.this);
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sqLiteDatabase=myHelper.getReadableDatabase();
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LinearLayout linearLayout = findViewById(R.id.mylist);
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linearLayout.setBackgroundResource(R.color.white);
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List<Shop> ShopList = new ArrayList<Shop>();
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Cursor cursor = sqLiteDatabase.query("SHOPS", null,null,null,null,null,null);
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if (cursor.getCount() == 0) {
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Toast.makeText(this,"很遗憾，没有搜索到", Toast.LENGTH_SHORT).show();
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return;
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}
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cursor.moveToFirst();
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ShopList.add(new Shop(cursor.getInt(0),
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cursor.getString(1),cursor.getString(2)
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,cursor.getString(3),cursor.getInt(4),
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cursor.getInt(5),cursor.getInt(6),
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cursor.getString(7),cursor.getString(8),
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cursor.getString(9),cursor.getString(10),
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cursor.getString(11),cursor.getString(12)));
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while (cursor.moveToNext()) {
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ShopList.add(new Shop(cursor.getInt(0),
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cursor.getString(1),cursor.getString(2)
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,cursor.getString(3),cursor.getInt(4),
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cursor.getInt(5),cursor.getInt(6),
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cursor.getString(7),cursor.getString(8),
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cursor.getString(9),cursor.getString(10),
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cursor.getString(11),cursor.getString(12)));
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}
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ShopAdapter adapter = new ShopAdapter(ElemeMainPage.this, R.layout.food_shops, ShopLists);
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ListView listView = (ListView) findViewById(R.id.list_view);
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listView.setAdapter(adapter);
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return;
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}
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if (!keyWord.trim().equals("")){
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List<Shop> ShopLists ;
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SQLiteDatabase sqLiteDatabase ;
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MyHelper myHelper = new MyHelper(ElemeMainPage.this);
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sqLiteDatabase = myHelper.getReadableDatabase();
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ContentValues values = new ContentValues();
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values.put("shop_name",keyWord);
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LinearLayout linearLayout = findViewById(R.id.mylist);
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Cursor cursor = sqLiteDatabase.query("SHOPS", null, "shop_name like ?",new String[]{"%"+keyWord+"%"},null,null,null);
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if (cursor.getCount()==0) {
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Toast.makeText(this, "很遗憾，没有搜索到", Toast.LENGTH_SHORT).show();
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linearLayout.setBackgroundResource(R.mipmap.havenofood);
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ShopLists = new ArrayList<Shop>();
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ShopAdapter adapter = new ShopAdapter(ElemeMainPage.this, R.layout.food_item, ShopLists);
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ListView listView = (ListView) findViewById(R.id.list_view);
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listView.setAdapter(adapter);
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return;
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}else {
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ShopLists = new ArrayList<Shop>();
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cursor.moveToFirst();
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ShopLists.add(new Shop(cursor.getInt(0),
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cursor.getString(1),cursor.getString(2)
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,cursor.getString(3),cursor.getInt(4),
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cursor.getInt(5),cursor.getInt(6),
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cursor.getString(7),cursor.getString(8),
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cursor.getString(9),cursor.getString(10),
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cursor.getString(11),cursor.getString(12)));
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while (cursor.moveToNext()) {
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ShopLists.add(new Shop(cursor.getInt(0),
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cursor.getString(1),cursor.getString(2)
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,cursor.getString(3),cursor.getInt(4),
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cursor.getInt(5),cursor.getInt(6),
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cursor.getString(7),cursor.getString(8),
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cursor.getString(9),cursor.getString(10),
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cursor.getString(11),cursor.getString(12)));
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}
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linearLayout = findViewById(R.id.mylist);
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linearLayout.setBackgroundResource(R.color.white);
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ShopAdapter adapter = new ShopAdapter(ElemeMainPage.this, R.layout.food_shops, ShopLists);
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ListView listView = (ListView) findViewById(R.id.list_view);
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listView.setAdapter(adapter);
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return;
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}
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}
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}
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}
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}
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