android对话框 - edittext总是NULL

Question

我在这上面花了很多时间，并且在这个网站上看到很多类似问题的消息，但是我解决不了= [请帮我解决问题

public void button() { 

    button = (Button) findViewById(R.id.hadash); 
    button.setOnClickListener(new OnClickListener() { 

     private String newweight2; 

     @Override 
     public void onClick(View view) { 
      final Dialog dialog = new Dialog(Activity3.this); 
      LayoutInflater inflater = (LayoutInflater) getLayoutInflater(); 
      View content = inflater.inflate(R.layout.dialog, null); 
      dialog.setContentView(content); 
      dialog.setTitle("הוספת מעקב משקל"); 

      Button dialogButton = (Button) content.findViewById(R.id.button1); 
      EditText newweight = (EditText) content.findViewById(R.id.editText1); 
      newweight2 = newweight.getText().toString(); 


      dialogButton.setOnClickListener(new OnClickListener() { 
       @Override 
       public void onClick(View v) { 

       // int newweight2=Integer.parseInt(newweight.getText().toString()); 

       //  SQLiteDatabase db; 
      //  db = openOrCreateDatabase("weight.db" , SQLiteDatabase.CREATE_IF_NECESSARY,null); 

       //  String sql = "INSERT INTO weight_listview (weight,date) VALUES(" + newweight + ",'03/04/2014')" ;  
       //  db.execSQL(sql); 

        Toast.makeText(Activity3.this,"המשקל " + newweight2 + " נקלט בהצלחה", Toast.LENGTH_LONG).show(); 
        dialog.dismiss(); 
       } 
      }); 
      dialog.show(); 
     } 

    }); 
} 

请帮助= [我真的筋疲力尽

Answer 1

移动这一行：

newweight2 = newweight.getText().toString(); 

从其当前位置到：

dialogButton.setOnClickListener(new OnClickListener() { 
       @Override 
       public void onClick(View v) { 

        newweight2 = newweight.getText().toString(); //<--------------------------- 

        Toast.makeText(Activity3.this,"המשקל " + newweight2 + " נקלט בהצלחה", Toast.LENGTH_LONG).show(); 
        dialog.dismiss(); 
       }