puedo obtener Editar texto dejar evento

Question

Quiero editar el texto "texto" para ser reflejado en textview después de Edittext dejar evento es posible en Android intenté con esto ¿alguien puede decirme qué está mal o no es posible en Android?

Probé cada caso de que sea posible

objNextbet=getNextBets(); 
      Button btnbetNow =(Button)findViewById(R.id.btnBetNow); 
      try 
      { 
      SimpleExpandableListAdapter expListAdapter = 
       new SimpleExpandableListAdapter(
        this, 
        createBetGroupList("next"), // groupData describes the first-level entries 
        R.layout.group_row, // Layout for the first-level entries 
        new String[] { "BetGroup" }, // Key in the groupData maps to display 
        new int[] { R.id.childname },  // Data under "colorName" key goes into this TextView 
        createBetChildList("next") , // childData describes second-level entries 
        R.layout.child_row, // Layout for second-level entries 
        new String[] { "betText","betRate","betID" }, // Keys in childData maps to display 
        new int[] { R.id.txtBetText, R.id.txtdecRate,R.id.txtstrBetID} // Data under the keys above go into these TextViews 

       ) { 
       @Override 
       public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) 
       {   
        final View childview = super.getChildView(groupPosition, childPosition,isLastChild, convertView, parent); 


        final TextView txtBetText = (TextView)childview.findViewById(R.id.txtBetText); 
        final TextView txtstrBetID = (TextView)childview.findViewById(R.id.txtstrBetID); 
        final TextView txtdecRate = (TextView)childview.findViewById(R.id.txtdecRate);     


        String strBetGroup=""; 
        for(int n = 0 ; n < objNextbet.size() ; n++) 
         { 
         if(objNextbet.get(n).getBetText().toString().equals(txtBetText.getText().toString())) 
          { 
          strBetGroup=objNextbet.get(n).getstrBetGroupName().toString(); 
          } 
         } 



        Button btnBetNow = (Button)childview.findViewById(R.id.btnBetNow); 
        btnBetNow.setTag(txtBetText.getText() + "-" + 
          txtstrBetID.getText() +"-" +txtdecRate.getText()+"-"+strBetGroup); 

        btnBetNow.setOnClickListener(new OnClickListener() 
        {  
         @Override    
         public void onClick(View view) 
         {     
          try 
          { 
           String TagValue=(String) view.getTag(); 
           final String bet[] = TagValue.split("-"); 

           final Dialog dialogbetNow = new Dialog(myucontext); 
           /** Disabling The PopUp Title Bar */ 
           dialogbetNow.requestWindowFeature(Window.FEATURE_NO_TITLE); 

           /** Set The Content For The PopUp */ 
           dialogbetNow.setContentView(R.layout.popupbet); 

           /** Set The PopUp Deposit Balance */ 
            TextView txtCashcredit =(TextView)dialogbetNow.findViewById(R.id.txtCashcredit); 
            txtCashcredit.setText(Double.toString(objCGUserProfile.getUsedCredit()).toString()); 

            final TextView txtbetBetText = (TextView)dialogbetNow.findViewById(R.id.txtbetBetText); 
            txtbetBetText.setText(bet[0]); 

            TextView txtbetRate = (TextView)dialogbetNow.findViewById(R.id.txtbetRate); 
            txtbetRate.setText(bet[2]); 

            Button btnpopupBetNow = (Button)dialogbetNow.findViewById(R.id.btnpopupBetNow); 
            btnpopupBetNow.setOnClickListener(new OnClickListener() 
           { 

           @Override 
           public void onClick(View v) 
           { 

            final EditText ETStake = (EditText)dialogbetNow.findViewById(R.id.ETStake); 

            if(ETStake.getText().toString().equals("")) 
            { 
             TextView txtError =(TextView)dialogbetNow.findViewById(R.id.txtError); 
             txtError.setTextColor(Color.RED); 
             txtError.setText("Please Enter cash."); 
            } 
            else 
            { 
             final double cash = Double.valueOf((String)ETStake.getText().toString()).doubleValue(); 

             ETStake.setOnFocusChangeListener(new EditText.OnFocusChangeListener() 
             {  
              @Override 
              public void onFocusChange(View v,boolean hasFocus) 
              { 
               if (!hasFocus) 
               { 
                // TODO: the editText has just been left 
                TextView txtRisk = (TextView)dialogbetNow.findViewById(R.id.txtRisk); 
                TextView txtReturn = (TextView)dialogbetNow.findViewById(R.id.txtReturn); 
                txtRisk.setText(Double.toString(cash).toString()); 
                double stake = Double.parseDouble(ETStake.getText().toString()); 
                double rate = Double.parseDouble(bet[2]); 
                double betReturn = stake * rate; 
                txtReturn.setText(Double.toString(betReturn)); 
               } 

              } 
             }); 

            } 
           } 
          }); 

            ImageView imgCancel = (ImageView)dialogbetNow.findViewById(R.id.imgCancel); 
            imgCancel.setOnClickListener(new OnClickListener() { 

            @Override 
            public void onClick(View v) 
            { 
             try 
             { 
              dialogbetNow.cancel(); 
             } 
             catch (Exception e) 
             { 
             } 
            } 
           }); 

           dialogbetNow.show(); 

          } 

          catch(Exception ex) 
          { 
           ex.toString(); 
          } 
         } 
         });     

        return childview;  
       } 

Answer 1

Uso onFocusChangeListener. Cada vista le notificará sobre perder el foco a través de esa interfaz.

Answer 2

aquí TextMessage es su EditExt

textMessage.addTextChangedListener(new TextWatcher(){ 
      public void afterTextChanged(Editable s) { 
       i++; 
       tv.setText(textMessage.getText.toString()); 
      } 
      public void beforeTextChanged(CharSequence s, int start, int count, int after){} 
      public void onTextChanged(CharSequence s, int start, int before, int count){} 
     }); 

Answer 3

Puede registrar una OnFocusChangeListener en su EditText dentro método de su actividad onCreate:

final EditText et = (EditText)findViewById(R.id.my_edit_text); 
et.setOnFocusChangeListener(new View.OnFocusChangeListener() 
{ 
    @Override 
    public void onFocusChange(View v, boolean hasFocus) 
    { 
     if (!hasFocus) 
      // TODO: the editText has just been left 
    } 
}); 

Aquí el parámetro v del onFocusChange es su control EditText.

Además, si desea actualizar su TextView en cada cambio en el contenido del EditText 's, usted debe poner su código de actualización dentro del método de la TextWatcher registrada public void afterTextChanged(Editable s).

// Asegúrese de que txtRisk TextView sea parte de la vista dialogbetNow.