EditText 사용하기

안드로이드 EditText에 특정 타입 입력받기

 

main.xml 속성에서 android:inputType= 으로 설정 가능.

          <EditText android:id="@+id/EditText03"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:inputType="number">

양수 : number / 숫자 : numberSigned / 소수점 : numberDecimal
"|" 연산자를 통해 두가지 속성을 같이 적용할 수 있음. (number|numberDecimal)

EditText

A text field for user input. We'll make it display the text entered so far when the "Enter" key is pressed.

1. Open the layout file and, inside the LinearLayout, add the EditText element:

   <EditText
   
   
   
       android:id="@+id/edittext"
   
   
   
       android:layout_width="fill_parent"
   
   
   
       android:layout_height="wrap_content"/>

2. To do something with the text that the user enters, add the following code to the end of the onCreate() method:

   
   
   
   
   
   
   final EditText edittext = (EditText) findViewById(R.id.edittext);
   
   edittext.setOnKeyListener(new OnKeyListener() 
   
   {   
   
   public boolean onKey(View v, int keyCode, KeyEvent event) 
   
   
       {       
   
   
       if ((event.getAction() == KeyEvent.ACTION_DOWN) && 
   
           (keyCode == KeyEvent.KEYCODE_ENTER)) {          
   
            // Perform action on key press          
   
            Toast.makeText(HelloFormStuff.this, 
   
                     edittext.getText(), Toast.LENGTH_SHORT).show();         
   
            return true;        
   
        }       
   
        return false;    
   }}); 
   
   

3. Run it.

This captures our EditText element from the layout, then adds an on-key listener to it.

The View.OnKeyListener must define the onKey() method, which defines the action to be made
when a key is pressed.

In this case, we want to listen for the Enter key (when pressed down), then pop up a Toast message
with the text from the EditText field.

Be sure to return true after the event is handled, so that the event doesn't bubble-up and get handled
by the View (which would result in a carriage return in the text field).