当我搜索任何列表视图项目，然后去点击愿望项目，它总是打开列表视图的第一个位置

Question

MainActivity.class 问题是，当我要从列表视图中搜索任何所需的项目，然后单击它，然后它总是当我搜索时，打开的第一个位置项目被添加到程序中不需要的项目中。

package com.example.rushikesh.first; 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.text.TextUtils; 
import android.view.View; 
import android.view.Window; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.widget.SearchView; 
import com.example.rushikesh.first.R; 
import com.google.android.gms.ads.AdListener; 
import com.google.android.gms.ads.AdRequest; 
import com.google.android.gms.ads.AdView; 
import com.google.android.gms.ads.InterstitialAd; 

public class Basic_programs extends Activity implements SearchView.OnQueryTextListener 
{ 

private SearchView mSearchView; 
private ListView mListView; 
private AdView mAdView; 
private final String[] mStrings = Cheeses.sCheeseStrings; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    getWindow().requestFeature(Window.FEATURE_ACTION_BAR); 
    setContentView(R.layout.basic_prog_list); 
    mSearchView = (SearchView) findViewById(R.id.search_view); 
    mListView = (ListView) findViewById(R.id.list_view); 
    mListView.setAdapter(new ArrayAdapter<String>(this, 
      android.R.layout.simple_list_item_1, 
      mStrings)); 
    mListView.setTextFilterEnabled(true); 
    setupSearchView(); 

    mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) { 

      String itemValue = (String) mListView.getItemAtPosition(position); 
      if(position == 0) { 
       Intent i = new Intent("android.intent.action.FIRST_PROG"); 
       startActivity(i); 
      } 
      if(position == 1) { 
       Intent i = new Intent("android.intent.action.SECOND_PROG"); 
       startActivity(i); 
      } 
      if(position == 2) { 
       Intent i = new Intent("android.intent.action.THIRD_PROG"); 
       startActivity(i); 
      } 
      if(position == 3) { 
       Intent i = new Intent("android.intent.action.FOURTH_PROG"); 
       startActivity(i); 
      } 
      if(position == 4) { 
       Intent i = new Intent("android.intent.action.FIFTH_PROG"); 
       startActivity(i); 
      } 
      if(position == 5) { 
       Intent i = new Intent("android.intent.action.SIXTH_PROG"); 
       startActivity(i); 
      } 
      if(position == 6) { 
       Intent i = new Intent("android.intent.action.SEVENTH_PROG"); 
       startActivity(i); 
      } 
      if(position == 7) { 
       Intent i = new Intent("android.intent.action.EIGHT_PROG"); 
       startActivity(i); 
      } 
      if(position == 8) { 
       Intent i = new Intent("android.intent.action.NINTH_PROG"); 
       startActivity(i); 
      } 
      if(position == 9) { 
       Intent i = new Intent("android.intent.action.TENTH_PROG"); 
       startActivity(i); 
      } 
      if(position == 10) { 
       Intent i = new Intent("android.intent.action.ELEVEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 11) { 
       Intent i = new Intent("android.intent.action.TWELVE_PROG"); 
       startActivity(i); 
      } 
      if(position == 12) { 
       Intent i = new Intent("android.intent.action.THIRTEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 13) { 
       Intent i = new Intent("android.intent.action.FOURTEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 14) { 
       Intent i = new Intent("android.intent.action.FIFTEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 15) { 
       Intent i = new Intent("android.intent.action.SIXTEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 16) { 
       Intent i = new Intent("android.intent.action.SEVENTEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 17) { 
       Intent i = new Intent("android.intent.action.EIGHTEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 18) { 
       Intent i = new Intent("android.intent.action.NINETEEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 19) { 
       Intent i = new Intent("android.intent.action.TWENTY_PROG"); 
       startActivity(i); 
      } 
      if(position == 20) { 
       Intent i = new Intent("android.intent.action.TWENTYONE_PROG"); 
       startActivity(i); 
      } 
      if(position == 21) { 
       Intent i = new Intent("android.intent.action.TWENTYTWO_PROG"); 
       startActivity(i); 
      } 
      if(position == 22) { 
       Intent i = new Intent("android.intent.action.TWENTYTHREE_PROG"); 
       startActivity(i); 
      } 
      if(position == 23) { 
       Intent i = new Intent("android.intent.action.TWENTYFOUR_PROG"); 
       startActivity(i); 
      } 
      if(position == 24) { 
       Intent i = new Intent("android.intent.action.TWENTYFIVE_PROG"); 
       startActivity(i); 
      } 
      if(position == 25) { 
       Intent i = new Intent("android.intent.action.TWENTYSIX_PROG"); 
       startActivity(i); 
      } 
      if(position == 26) { 
       Intent i = new Intent("android.intent.action.TWENTYSEVEN_PROG"); 
       startActivity(i); 
      } 
      if(position == 27) { 
       Intent i = new Intent("android.intent.action.TWENTYEIGHT_PROG"); 
       startActivity(i); 
      } 
      if(position == 28) { 
       Intent i = new Intent("android.intent.action.TWENTYNINE_PROG"); 
       startActivity(i); 
      } 
      if(position == 29) { 
       Intent i = new Intent("android.intent.action.THIRTY_PROG"); 
       startActivity(i); 
      } 
      if(position == 30) { 
       Intent i = new Intent("android.intent.action.THIRTYONE_PROG"); 
       startActivity(i); 
      } 
      if(position == 31) { 
       Intent i = new Intent("android.intent.action.THIRTY_TWO"); 
       startActivity(i); 
      } 
      if(position == 32) { 
       Intent i = new Intent("android.intent.action.THIRTY_THREE"); 
       startActivity(i); 
      } 
      if(position == 33) { 
       Intent i = new Intent("android.intent.action.THIRTY_FOUR"); 
       startActivity(i); 
      } 
     } 
    }); 

} 


private void setupSearchView() { 
    mSearchView.setIconifiedByDefault(false); 
    mSearchView.setOnQueryTextListener(this); 
    mSearchView.setSubmitButtonEnabled(true); 
    mSearchView.setQueryHint("e.g. Factorial number"); 
} 

public boolean onQueryTextChange(String newText) { 
    if (TextUtils.isEmpty(newText)) { 
     mListView.clearTextFilter(); 
    } else { 
     mListView.setFilterText(newText.toString()); 
    } 
    return true; 
} 

public boolean onQueryTextSubmit(String query) { 
    return false; 
} 
} 

Cheeses.class活动

package com.example.rushikesh.first; 

public class Cheeses { 

public static final String[] sCheeseStrings = { 
     "Hello World!", "Addition of two numbers", "Add two numbers in range of integers(4 bytes)", "Factorial number taking user input", "calculating factorial of large numbers", 
     "Odd or Even number", "Odd or Even number (Second method)", "Reverse number", "Get input from user in Java", 
     "If else program in Java", "Nested If Else program", 
     "Print multiplication table", "For loop program in Java", "For loop program to print Stars Pattern", 
     "For loop program to print an Alphabets", 
     "While loop program to print an Alphabet", "Do-while program to print an Alphabet", "Convert Fahrenheit to Celsius", 
     "Swap two numbers using third variable", "Swap two numbers without using third variable", 
     "Reverse a string", "Reverse a string using String Buffer class", "Java program to get Ip address", 
     "Print prime numbers", "Check palindrome number", 
     "Factorial number", "Factorial number using Recursion", "Fibonacci Series in Java without using recursion", 
     "Fibonacci Series in Java using recursion", "Search a word inside a string", "Convert integer into hex", 
     "Java For loop Thread Sleep method Example", "Thread example by Extending Thread Class", 
     "Thread example by Implementing Runnable Interface" 

}; 



} 

Answer 1

在当你输入的搜索文本查看它过滤掉来自阵列适配器相匹配的项目的情况。

因此，当您设置阵列适配器时，阵列的所有项目都会重新定义它们的位置。

在这里，你必须找到一个选择的结果的位置从sCheeseStrings

的，你可以找到下面的代码行。请询问你是否有任何疑问。

 String itemValue = (String) mListView.getItemAtPosition(position); 

     int itemPosition = 0; 
      for (int i = 0; i < mStrings.length; i++) { 
       if (itemValue.equalsIgnoreCase(mStrings[i])) { 
        itemPosition = i; 
       } 
      } 

      if (itemPosition == 0) { 
       String content = "android.intent.action.FIRST_PROG"; 
       Intent i = new Intent(content); 
       startActivity(i); 
      } 
      if (itemPosition == 1) { 
       Intent i = new Intent("android.intent.action.SECOND_PROG"); 
       startActivity(i); 
      } 
      if (itemPosition == 2) { 
       Intent i = new Intent("android.intent.action.THIRD_PROG"); 
       startActivity(i); 
      }