Android Dynamic List View

Question

Je souhaite corriger un bouton en haut de la mise en page et, juste en dessous du bouton, un texte d'édition dynamique est créé. Je crée mon propre adaptateur. Sur le bouton, cliquez sur une autre activité commence et retourne la chaîne qui doit être affichée sur les éléments de la liste sous le bouton. Comment puis-je faire ceci ?

Ma mise en page XML -

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

    <Button 
     android:id="@+id/button1" 
     style="?android:attr/buttonStyleSmall" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Button" /> 

    <EditText 
     android:id="@+id/etList" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:ems="10" > 
    </EditText> 

</LinearLayout> 

Mon adaptateur de liste -

 package com.example.tasktable; 

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

     public class TaskAdapter extends ArrayAdapter<String> { 
      private final Context context; 
      private final String[] values; 
      Button click; 
      TextView textView; 

      public TaskAdapter(Context context, String[] values) { 
       super(context, R.layout.list_view, values); 
       this.context = context; 
       this.values = values; 
      } 

      @Override 
      public View getView(int position, View convertView, ViewGroup parent) { 
       // TODO Auto-generated method stub 
       LayoutInflater inflator = (LayoutInflater) context 
         .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
       View rowView = inflator.inflate(R.layout.list_view, parent, false); 
       click = (Button) rowView.findViewById(R.id.button1); 
       textView = (TextView) rowView.findViewById(R.id.etList); 

       textView.setText(values[position]); 

       return rowView; 
      } 





    } 

Je ne veux pas gonfler le bouton avec tous les textes d'édition.

Answer 1

Vous pouvez placer des éléments de mise en page avec Layouts relatifs https://developer.android.com/reference/android/widget/RelativeLayout.html

Answer 2

//try this way, hope this will help you... 

**XML** code 

**activity.xml** 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    android:gravity="center"> 

    <Button 
     android:id="@+id/btnAdd" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Add"/> 

    <ScrollView 
     android:layout_width="match_parent" 
     android:layout_height="0dp" 
     android:layout_weight="1"> 

     <LinearLayout 
      android:id="@+id/lnrEdit" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:orientation="vertical"> 

     </LinearLayout> 
    </ScrollView> 
</LinearLayout> 

**list_activity.xml** 
<ListView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@android:id/list" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"/> 

**list_item.xml** 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:gravity="center"> 

    <TextView 
     android:id="@+id/txtValue" 
     android:layout_width="0dp" 
     android:layout_height="wrap_content" 
     android:layout_weight="1"/> 

    <Button 
     android:id="@+id/btnSelect" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Select"/> 
</LinearLayout> 

**ACTIVITY** code 

**MyActivity** 
public class MyActivity extends Activity{ 

    private Button btnAdd; 
    private LinearLayout lnrEdit; 
    private final int GET_LIST_ITEM = 1; 
    private HashMap<String,String> listItemMap; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity); 

     btnAdd = (Button) findViewById(R.id.btnAdd); 
     lnrEdit = (LinearLayout) findViewById(R.id.lnrEdit); 

     listItemMap = new HashMap<String, String>(); 
     btnAdd.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       Intent intent = new Intent(MyActivity.this,MyListActivty.class); 
       startActivityForResult(intent,GET_LIST_ITEM); 
      } 
     }); 

    } 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     super.onActivityResult(requestCode, resultCode, data); 
     if(resultCode == RESULT_OK){ 
      if(requestCode == GET_LIST_ITEM); 
      { 
       String getListValue = data.getStringExtra("value"); 
       int index = data.getIntExtra("index",0); 
       if(listItemMap.containsKey(String.valueOf(index))){ 
        Toast.makeText(this,"This item already taken !!!",Toast.LENGTH_LONG).show(); 
       } else{ 
        listItemMap.put(String.valueOf(index),getListValue); 
        EditText editText = new EditText(this); 
        editText.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); 
        editText.setId(index); 
        editText.setText(getListValue); 
        editText.setTag(getListValue); 
        editText.setFocusable(false); 
        editText.setFocusableInTouchMode(false); 
        editText.setOnClickListener(new View.OnClickListener() { 
         @Override 
         public void onClick(View v) { 
          String value = v.getTag().toString(); 
          Toast.makeText(MyActivity.this,value,Toast.LENGTH_SHORT).show(); 
         } 
        }); 

        lnrEdit.addView(editText); 
       } 
      } 
     } 
    } 
} 

**MyListActivity** 
public class MyListActivty extends ListActivity{ 

    private String[] listArray; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.list_activity); 
     listArray = new String[]{"Android4.1","Android4.2","Android4.3","Android4.4","Android4.5"}; 
     setListAdapter(new TaskAdapter(this,listArray)); 
    } 

    class TaskAdapter extends ArrayAdapter<String> { 
     private final Context context; 
     private final String[] values; 

     public TaskAdapter(Context context, String[] values) { 
      super(context, R.layout.list_item, values); 
      this.context = context; 
      this.values = values; 
     } 

     @Override 
     public View getView(final int position, View convertView, ViewGroup parent) { 
      ViewHolder holder; 
      if(convertView==null){ 
       holder = new ViewHolder(); 
       convertView = LayoutInflater.from(context).inflate(R.layout.list_item, parent, false); 
       holder.button = (Button) convertView.findViewById(R.id.btnSelect); 
       holder.textView = (TextView) convertView.findViewById(R.id.txtValue); 
       convertView.setTag(holder); 
      } else{ 
       holder = (ViewHolder)convertView.getTag(); 
      } 
      holder.textView.setText(values[position]); 
      holder.button.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        Intent intent = new Intent(); 
        intent.putExtra("index",position); 
        intent.putExtra("value",values[position]); 
        setResult(RESULT_OK,intent); 
        finish(); 
       } 
      }); 
      return convertView; 
     } 

     @Override 
     public int getCount() { 
      return values.length; 
     } 
    } 

    static class ViewHolder{ 
     Button button; 
     TextView textView; 
    } 

}