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ANDROID創建可點擊的列表視圖

2015-09-27 140 views
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因此，簡而言之，我想點擊列表中的某個項目打開包含該項目更多數據的頁面。 我知道，也許我問得太多了，但我需要你的幫助。ANDROID創建可點擊的列表視圖

大家好，我要創建我要，我可以多年來記得幾何，我提出的所有問題的個人應用程序，所以我做了一個數據庫，和我做了一個適配器放在一個項目表格使用相同的佈局：https://gyazo.com/f907281860906d6301bd98d896351650 （在此表格中，您只能看到圖形的名稱和個人註釋），但事實是，當我將數據以 https://gyazo.com/b14e0877e23612ac6d77bf328305651f 的形式存入時，我把它們放在圖和個人筆記也插入數據，以便當你在該表中查看時，我點擊「打開」按鈕不能看到問題的數據，有沒有辦法做到這一點？在這裏你將得到DBHelper，元素的佈局，ListDataAdapter和MainAcivity的活動，必須閱讀這些框。

DBHelper

package com.example.gioele.mathup; 

import android.content.ContentValues; 
import android.content.Context; 
import android.database.Cursor; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.util.Log; 

/** 
* Created by Gioele on 13/07/2015. 
*/ 
public class LocalDB1Helper extends SQLiteOpenHelper { 
//--------------inizializzazione/creazione database------------------------------------------------------------ 
    private static final String DATABASE_NAME = "linguaggiodb"; 
    private static final int DATABASE_VERSIONS = 4; 
    private static final String CREATE_QUERY = 
    "CREATE TABLE "+ LocalDB2.tabella1.TABLE_NAME+" (" + LocalDB2.tabella1.USER_LINGUAGGIO + " TEXT,"+ 
      LocalDB2.tabella1.USER_FIGURA1 + " TEXT,"+ 
      LocalDB2.tabella1.USER_FIGURA2 + " TEXT,"+ 
      LocalDB2.tabella1.USER_NICKNAME_PROBLEM + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_1 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_2 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_3 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_4 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_5 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_6 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_7 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_8 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_9 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_10 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_11 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_12 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_13 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_14 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_15 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_16 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_17 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_18 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_19 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_20 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_21 + " TEXT,"+ 
      LocalDB2.tabella1.SCRITTA_22 + " TEXT,"+ 
      LocalDB2.tabella1.R1 + " TEXT,"+ 
      LocalDB2.tabella1.R2 + " TEXT,"+ 
      LocalDB2.tabella1.R3 + " TEXT,"+ 
      LocalDB2.tabella1.R4 + " TEXT,"+ 
      LocalDB2.tabella1.R5 + " TEXT,"+ 
      LocalDB2.tabella1.R6 + " TEXT,"+ 
      LocalDB2.tabella1.R7 + " TEXT,"+ 
      LocalDB2.tabella1.R8 + " TEXT,"+ 
      LocalDB2.tabella1.R9 + " TEXT,"+ 
      LocalDB2.tabella1.R10 + " TEXT,"+ 
      LocalDB2.tabella1.R11 + " TEXT,"+ 
      LocalDB2.tabella1.R12 + " TEXT,"+ 
      LocalDB2.tabella1.R13 + " TEXT,"+ 
      LocalDB2.tabella1.R14 + " TEXT,"+ 
      LocalDB2.tabella1.R15 + " TEXT,"+ 
      LocalDB2.tabella1.R16 + " TEXT,"+ 
      LocalDB2.tabella1.R17 + " TEXT,"+ 
      LocalDB2.tabella1.R18 + " TEXT,"+ 
      LocalDB2.tabella1.R19 + " TEXT,"+ 
      LocalDB2.tabella1.R20 + " TEXT,"+ 
      LocalDB2.tabella1.R21 + " TEXT,"+ 
      LocalDB2.tabella1.R22 + " TEXT,"+ 
      LocalDB2.tabella1.RR1 + " TEXT,"+ 
      LocalDB2.tabella1.RR2 + " TEXT,"+ 
      LocalDB2.tabella1.RR3 + " TEXT,"+ 
      LocalDB2.tabella1.RR4 + " TEXT,"+ 
      LocalDB2.tabella1.RR5 + " TEXT,"+ 
      LocalDB2.tabella1.RR6 + " TEXT,"+ 
      LocalDB2.tabella1.RR7 + " TEXT,"+ 
      LocalDB2.tabella1.RR8 + " TEXT,"+ 
      LocalDB2.tabella1.RR9 + " TEXT,"+ 
      LocalDB2.tabella1.RR10 + " TEXT,"+ 
      LocalDB2.tabella1.RR11 + " TEXT,"+ 
      LocalDB2.tabella1.RR12 + " TEXT,"+ 
      LocalDB2.tabella1.RR13 + " TEXT,"+ 
      LocalDB2.tabella1.RR14 + " TEXT,"+ 
      LocalDB2.tabella1.RR15 + " TEXT,"+ 
      LocalDB2.tabella1.RR16 + " TEXT,"+ 
      LocalDB2.tabella1.RR17 + " TEXT,"+ 
      LocalDB2.tabella1.RR18 + " TEXT,"+ 
      LocalDB2.tabella1.RR19 + " TEXT,"+ 
      LocalDB2.tabella1.RR20 + " TEXT,"+ 
      LocalDB2.tabella1.RR21 + " TEXT,"+ 
      LocalDB2.tabella1.RR22 + " TEXT);"; 
      ; 





    public LocalDB1Helper(Context context) 
    { 
     super(context,DATABASE_NAME,null,DATABASE_VERSIONS); 
     Log.e("DATABASE OPERATIONS","Database create/opened....."); 
    } 
    @Override 
    public void onCreate(SQLiteDatabase db) { 
     db.execSQL(CREATE_QUERY); 
     Log.e("DATABASE OPERATIONS", "Table created"); 

    } 
//------------comandi: leggi, scrivi---------------------------------------------------------------------- 
    //scrivi 
    public void addInformations(String linguaggio, 
           String user_figura1, 
           String user_figura2, 
           String user_nickname_problem, 
           String scritta1, 
           String scritta2, 
           String scritta3, 
           String scritta4, 
           String scritta5, 
           String scritta6, 
           String scritta7, 
           String scritta8, 
           String scritta9, 
           String scritta10, 
           String scritta11, 
           String scritta12, 
           String scritta13, 
           String scritta14, 
           String scritta15, 
           String scritta16, 
           String scritta17, 
           String scritta18, 
           String scritta19, 
           String scritta20, 
           String scritta21, 
           String scritta22, 

           String r_1, 
           String r_2, 
           String r_3, 
           String r_4, 
           String r_5, 
           String r_6, 
           String r_7, 
           String r_8, 
           String r_9, 
           String r_10, 
           String r_11, 
           String r_12, 
           String r_13, 
           String r_14, 
           String r_15, 
           String r_16, 
           String r_17, 
           String r_18, 
           String r_19, 
           String r_20, 
           String r_21, 
           String r_22, 

           String rr_1, 
           String rr_2, 
           String rr_3, 
           String rr_4, 
           String rr_5, 
           String rr_6, 
           String rr_7, 
           String rr_8, 
           String rr_9, 
           String rr_10, 
           String rr_11, 
           String rr_12, 
           String rr_13, 
           String rr_14, 
           String rr_15, 
           String rr_16, 
           String rr_17, 
           String rr_18, 
           String rr_19, 
           String rr_20, 
           String rr_21, 
           String rr_22, 


           SQLiteDatabase db) 
    { 
     ContentValues contentValues = new ContentValues(); 
     contentValues.put(LocalDB2.tabella1.USER_LINGUAGGIO,linguaggio); 
     contentValues.put(LocalDB2.tabella1.USER_FIGURA1,user_figura1); 
     contentValues.put(LocalDB2.tabella1.USER_FIGURA2,user_figura2); 
     contentValues.put(LocalDB2.tabella1.USER_NICKNAME_PROBLEM,user_nickname_problem); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_1,scritta1); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_2,scritta2); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_3,scritta3); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_4,scritta4); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_5,scritta5); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_6,scritta6); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_7,scritta7); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_8,scritta8); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_9,scritta9); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_10,scritta10); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_11,scritta11); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_12,scritta12); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_13,scritta13); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_14,scritta14); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_15,scritta15); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_16,scritta16); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_17,scritta17); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_18,scritta18); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_19,scritta19); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_20,scritta20); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_21,scritta21); 
     contentValues.put(LocalDB2.tabella1.SCRITTA_22,scritta22); 
     contentValues.put(LocalDB2.tabella1.R1,r_1); 
     contentValues.put(LocalDB2.tabella1.R2,r_2); 
     contentValues.put(LocalDB2.tabella1.R3,r_3); 
     contentValues.put(LocalDB2.tabella1.R4,r_4); 
     contentValues.put(LocalDB2.tabella1.R5,r_5); 
     contentValues.put(LocalDB2.tabella1.R6,r_6); 
     contentValues.put(LocalDB2.tabella1.R7,r_7); 
     contentValues.put(LocalDB2.tabella1.R8,r_8); 
     contentValues.put(LocalDB2.tabella1.R9,r_9); 
     contentValues.put(LocalDB2.tabella1.R10,r_12); 
     contentValues.put(LocalDB2.tabella1.R11,r_12); 
     contentValues.put(LocalDB2.tabella1.R12,r_12); 
     contentValues.put(LocalDB2.tabella1.R13,r_12); 
     contentValues.put(LocalDB2.tabella1.R14,r_12); 
     contentValues.put(LocalDB2.tabella1.R15,r_15); 
     contentValues.put(LocalDB2.tabella1.R16,r_16); 
     contentValues.put(LocalDB2.tabella1.R17,r_17); 
     contentValues.put(LocalDB2.tabella1.R18,r_18); 
     contentValues.put(LocalDB2.tabella1.R19,r_19); 
     contentValues.put(LocalDB2.tabella1.R20,r_20); 
     contentValues.put(LocalDB2.tabella1.R21,r_21); 
     contentValues.put(LocalDB2.tabella1.R22,r_22); 
     contentValues.put(LocalDB2.tabella1.RR1,rr_1); 
     contentValues.put(LocalDB2.tabella1.RR2,rr_2); 
     contentValues.put(LocalDB2.tabella1.RR3,rr_3); 
     contentValues.put(LocalDB2.tabella1.RR4,rr_4); 
     contentValues.put(LocalDB2.tabella1.RR5,rr_5); 
     contentValues.put(LocalDB2.tabella1.RR6,rr_6); 
     contentValues.put(LocalDB2.tabella1.RR7,rr_7); 
     contentValues.put(LocalDB2.tabella1.RR8,rr_8); 
     contentValues.put(LocalDB2.tabella1.RR9,rr_9); 
     contentValues.put(LocalDB2.tabella1.RR10,rr_10); 
     contentValues.put(LocalDB2.tabella1.RR11,rr_11); 
     contentValues.put(LocalDB2.tabella1.RR12,rr_12); 
     contentValues.put(LocalDB2.tabella1.RR13,rr_13); 
     contentValues.put(LocalDB2.tabella1.RR14,rr_14); 
     contentValues.put(LocalDB2.tabella1.RR15,rr_15); 
     contentValues.put(LocalDB2.tabella1.RR16,rr_16); 
     contentValues.put(LocalDB2.tabella1.RR17,rr_17); 
     contentValues.put(LocalDB2.tabella1.RR18,rr_18); 
     contentValues.put(LocalDB2.tabella1.RR19,rr_19); 
     contentValues.put(LocalDB2.tabella1.RR20,rr_20); 
     contentValues.put(LocalDB2.tabella1.RR21,rr_21); 
     contentValues.put(LocalDB2.tabella1.RR22,rr_22); 


     db.insert(LocalDB2.tabella1.TABLE_NAME, null, contentValues); 
     Log.e("DATABASE OPERATIONS", "One row inserted"); 

    } 
    //leggi 
    public Cursor getInformations(SQLiteDatabase db) { 
     Log.e("DATABASE OPERATIONS", "AVVIATO"); 
     Cursor cursor; 
     final String[] uno = {LocalDB2.tabella1.USER_LINGUAGGIO, 
       LocalDB2.tabella1.USER_FIGURA1, 
       LocalDB2.tabella1.USER_FIGURA2, 
       LocalDB2.tabella1.USER_NICKNAME_PROBLEM, 
       LocalDB2.tabella1.SCRITTA_1, 
       LocalDB2.tabella1.SCRITTA_2, 
       LocalDB2.tabella1.SCRITTA_3, 
       LocalDB2.tabella1.SCRITTA_4, 
       LocalDB2.tabella1.SCRITTA_5, 
       LocalDB2.tabella1.SCRITTA_6, 
       LocalDB2.tabella1.SCRITTA_7, 
       LocalDB2.tabella1.SCRITTA_8, 
       LocalDB2.tabella1.SCRITTA_9, 
       LocalDB2.tabella1.SCRITTA_10, 
       LocalDB2.tabella1.SCRITTA_11, 
       LocalDB2.tabella1.SCRITTA_12, 
       LocalDB2.tabella1.SCRITTA_13, 
       LocalDB2.tabella1.SCRITTA_14, 
       LocalDB2.tabella1.SCRITTA_15, 
       LocalDB2.tabella1.SCRITTA_16, 
       LocalDB2.tabella1.SCRITTA_17, 
       LocalDB2.tabella1.SCRITTA_18, 
       LocalDB2.tabella1.SCRITTA_19, 
       LocalDB2.tabella1.SCRITTA_20, 
       LocalDB2.tabella1.SCRITTA_21, 
       LocalDB2.tabella1.SCRITTA_22, 
       LocalDB2.tabella1.R1, 
       LocalDB2.tabella1.R2, 
       LocalDB2.tabella1.R3, 
       LocalDB2.tabella1.R4, 
       LocalDB2.tabella1.R5, 
       LocalDB2.tabella1.R6, 
       LocalDB2.tabella1.R7, 
       LocalDB2.tabella1.R8, 
       LocalDB2.tabella1.R9, 
       LocalDB2.tabella1.R10, 
       LocalDB2.tabella1.R11, 
       LocalDB2.tabella1.R12, 
       LocalDB2.tabella1.R13, 
       LocalDB2.tabella1.R14, 
       LocalDB2.tabella1.R15, 
       LocalDB2.tabella1.R16, 
       LocalDB2.tabella1.R17, 
       LocalDB2.tabella1.R18, 
       LocalDB2.tabella1.R19, 
       LocalDB2.tabella1.R20, 
       LocalDB2.tabella1.R21, 
       LocalDB2.tabella1.R22, 
       LocalDB2.tabella1.RR1, 
       LocalDB2.tabella1.RR2, 
       LocalDB2.tabella1.RR3, 
       LocalDB2.tabella1.RR4, 
       LocalDB2.tabella1.RR5, 
       LocalDB2.tabella1.RR6, 
       LocalDB2.tabella1.RR7, 
       LocalDB2.tabella1.RR8, 
       LocalDB2.tabella1.RR9, 
       LocalDB2.tabella1.RR10, 
       LocalDB2.tabella1.RR11, 
       LocalDB2.tabella1.RR12, 
       LocalDB2.tabella1.RR13, 
       LocalDB2.tabella1.RR14, 
       LocalDB2.tabella1.RR15, 
       LocalDB2.tabella1.RR16, 
       LocalDB2.tabella1.RR17, 
       LocalDB2.tabella1.RR18, 
       LocalDB2.tabella1.RR19, 
       LocalDB2.tabella1.RR20, 
       LocalDB2.tabella1.RR21, 
       LocalDB2.tabella1.RR22, 
       }; 

     Cursor c = db.query(LocalDB1.tabella1.TABLE_NAME, uno, null, null, null, null, null); 
     return c; 

    } 


    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 

    } 


}

ListDataAdapter

package com.example.gioele.mathup; 

import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 
import android.widget.TextView; 

import java.util.ArrayList; 
import java.util.List; 

/** 
* Created by Gioele on 24/09/2015. 
*/ 
public class ListDataAdapter extends ArrayAdapter { 
    List list = new ArrayList<>(); 
    public ListDataAdapter(Context context, int resource) { 
     super(context, resource); 
    } 


    static class LayoutHandler 
    { 
     TextView user_figura1, user_figura2, user_nickname_problem; 
    } 
    @Override 
    public void add(Object object) { 
     super.add(object); 
     list.add(object); 
    } 

    @Override 
    public int getCount() { 
     return list.size(); 
    } 

    @Override 
    public Object getItem(int position) { 
     return list.get(position); 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View tabella2 = convertView; 
     LayoutHandler layoutHandler; 
     if(tabella2 == null){ 
      LayoutInflater layoutInflater = (LayoutInflater)this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      tabella2 = layoutInflater.inflate(R.layout.tabella2,parent,false); 
      layoutHandler = new LayoutHandler(); 
      layoutHandler.user_figura1 = (TextView)tabella2.findViewById(R.id.figura11); 
      layoutHandler.user_figura2 = (TextView)tabella2.findViewById(R.id.figura22); 
      layoutHandler.user_nickname_problem = (TextView)tabella2.findViewById(R.id.nominativo); 
      tabella2.setTag(layoutHandler); 
     } 
     else{ 
      layoutHandler = (LayoutHandler) tabella2.getTag(); 

     } 

     DataProvider dataProvider = (DataProvider)this.getItem(position); 
     layoutHandler.user_figura1.setText(dataProvider.getUser_figura1()); 
     layoutHandler.user_figura2.setText(dataProvider.getUser_figura2()); 
     layoutHandler.user_nickname_problem.setText(dataProvider.getUser_nickname_problem()); 
     return tabella2; 
    } 
}

MainActivity

final ListView listview1 = (ListView) findViewById(R.id.listview); 
      listDataAdapter = new ListDataAdapter(getApplicationContext(),R.layout.tabella2); 
      listview1.setAdapter(listDataAdapter); 
      helper = new LocalDB1Helper(getApplicationContext()); 
      SQLiteDatabase = helper.getReadableDatabase(); 
      c2 = helper.getInformations(SQLiteDatabase); 
      if (c2.moveToFirst()) { 
       do{ 
        String user_figura1, user_figura2, user_nickname_problem; 
        user_figura1 = c2.getString(1); 
        user_figura2 = c2.getString(2); 
        user_nickname_problem = c2.getString(3); 
        DataProvider dataProvider = new DataProvider(user_figura1, user_figura2, user_nickname_problem); 
        listDataAdapter.add(dataProvider); 

       }while (c2.moveToNext()); 
      }

所以，總之，我想點擊一個項目在列表中打開一個網頁，以獲取更多數據該項目。 我知道，也許我問得太多了，但我需要你的幫助。

來源

2015-09-27 Gioele Giunta

+0

啊在我的語言：linguaggio =語言，figura =圖，scritta =文本和r1-22和rr1-22是幾何問題的數據 –

回答

0

檢查出ListView.setOnItemClickListener()方法。您在此處提供OnItemClickListener，當用戶單擊列表視圖的某個項目時，會調用onItemClick方法。

來源

2015-09-27 17:30:32 Ridcully

+0

哦謝謝，但我已經解決了。謝謝。 –

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