ListView의 텍스트를 편집하려면 어떻게해야합니까?

Question

사용자 지정 어댑터가있는 ListView가 있습니다. 그것은 왼쪽과 두 줄의 텍스트에 이미지를 보여줍니다.

는 mylist.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="horizontal"> 

<ImageView 
    android:id="@+id/icon" 
    android:layout_width="60dp" 
    android:layout_height="60dp" 
    android:padding="5dp" /> 

<LinearLayout android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal"> 

    <LinearLayout android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:orientation="vertical"> 

     <TextView 
      android:id="@+id/item" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Medium Text" 
      android:textAppearance="?android:attr/textAppearanceMedium" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="5dp" 
      android:padding="2dp" 
      android:textColor="#33CC33" /> 

     <TextView 
      android:id="@+id/textView1" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="TextView" 
      android:layout_marginLeft="10dp"/> 

    </LinearLayout> 

    <View 
     android:layout_width="0dp" 
     android:layout_height="0dp" 
     android:layout_weight="1" /> 

    <Switch 
     android:id="@+id/switch1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="21dp" 
     android:layout_marginBottom="21dp" /> 

</LinearLayout> 

나는 "textView1"ID의 텍스트를 편집 할 동적 텍스트를 설정하려면

하지만,이 텍스트 뷰는 목록보기의 모든 행에 표시됩니다, 나는 단지를 변경하려면 두 번째 행에 텍스트.

나는 분명히 2 행의 텍스트보기를 얻을 수있는 방법이 없기 때문에 이제이 코드가 작동하지 않습니다 MainActivity.java

package com.chinmay.callblocker; 

import android.app.AlertDialog; 
import android.app.ListActivity; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.SharedPreferences; 
import android.media.AudioManager; 
import android.os.Bundle; 
import android.preference.PreferenceManager; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.CompoundButton; 
import android.widget.EditText; 
import android.widget.ListView; 
import android.widget.Switch; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends ListActivity { 

private TextView extraTxt; 

... 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    CustomListAdapter adapter = new CustomListAdapter(this, itemname, imgid, textDescription); 
    setListAdapter(adapter); 

    View inflatedView = getLayoutInflater().inflate(R.layout.mylist, null); 
    extraTxt = (TextView) inflatedView.findViewById(R.id.textView1); 

    final AlertDialog.Builder alert = new AlertDialog.Builder(this); 

    SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this); 
    final SharedPreferences.Editor e = settings.edit(); 
    e.putBoolean("switch", false); 
    e.commit(); 

    getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) { 
      /*String selected_item = "List View"; 
      Toast.makeText(getBaseContext(), selected_item, Toast.LENGTH_SHORT).show();*/ 
      if(position == 1) { 


       alert.setTitle("Message"); 
       alert.setMessage("This message will be sent when call blocking is on"); 

       // Set an EditText view to get user input 
       final EditText input = new EditText(getBaseContext()); 
       alert.setView(input); 

       alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, int whichButton) { 
         String value = input.getText().toString(); 
         extraTxt.setText(value); 
         //Toast.makeText(getBaseContext(), value, Toast.LENGTH_LONG).show(); 
         // Do something with value! 
        } 
       }); 

       alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, int whichButton) { 
         // Canceled. 
        } 
       }); 

       alert.show(); 
      } 
     } 
    }); 
} 

public void onListItemClick(ListView lv ,View view,int position,int imgid) { 
    /*String selected_item = "List View"; 
    Toast.makeText(this, selected_item, Toast.LENGTH_SHORT).show();*/ 
} 


@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_main, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 

    return super.onOptionsItemSelected(item); 
} 
} 

에

package com.chinmay.callblocker; 

import android.app.Activity; 
import android.content.Context; 
import android.content.SharedPreferences; 
import android.media.AudioManager; 
import android.preference.PreferenceManager; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 
import android.widget.CompoundButton; 
import android.widget.ImageView; 
import android.widget.Switch; 
import android.widget.TextView; 
import android.widget.Toast; 

/** 
* Created by user on 11/4/2014. 
*/ 

public class CustomListAdapter extends ArrayAdapter<String> { 

private final Activity context; 
private final String[] itemname; 
private final Integer[] imgid; 
private final String[] textDescription; 
AudioManager mAudio; 


public CustomListAdapter(Activity context, String[] itemname, Integer[] imgid, String[] textDescription) { 
    super(context, R.layout.mylist, itemname); 
// TODO Auto-generated constructor stub 
    this.context=context; 
    this.itemname=itemname; 
    this.imgid=imgid; 
    this.textDescription = textDescription; 


} 
public View getView(int position,View view,ViewGroup parent) { 
    LayoutInflater inflater=context.getLayoutInflater(); 
    View rowView=inflater.inflate(R.layout.mylist, null,true); 
    TextView txtTitle = (TextView) rowView.findViewById(R.id.item); 
    final Switch mSwitch = (Switch) rowView.findViewById(R.id.switch1); 
    ImageView imageView = (ImageView) rowView.findViewById(R.id.icon); 
    TextView extra_txt = (TextView) rowView.findViewById(R.id.textView1); 
    txtTitle.setText(itemname[position]); 
    imageView.setImageResource(imgid[position]); 
    extra_txt.setText(textDescription[position]); 

    mAudio = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE); 

    if(position == 0) { 

     imageView.setVisibility(View.GONE); 

     SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(context); 
     final SharedPreferences.Editor e = settings.edit(); 

     mSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){ 

      @Override 
      public void onCheckedChanged(CompoundButton arg0, boolean isChecked) { 
       if(isChecked) { 
        mAudio.setRingerMode(AudioManager.RINGER_MODE_SILENT); 
        e.putBoolean("switch", mSwitch.isChecked()); 
        e.commit(); 
       } else { 
        mAudio.setRingerMode(AudioManager.RINGER_MODE_NORMAL); 
        e.putBoolean("switch", mSwitch.isChecked()); 
        e.commit(); 
       } 
      } 

     }); 

    } else if(position != 0) { 
     mSwitch.setVisibility(View.GONE); 

     if(position == 1) { 

     } 
    } 

    return rowView; 
}; 
} 

CustomListAdapter.java

를이 코드를 사용했다 그런 다음 변경하십시오. 그러나 ListView에서 이러한 문제를 처리 할 수있는 방법이 있어야한다고 생각합니다.

Answer 1

CustomListAdapter에서 notifyDataSetChanged()를 호출해야합니다.