안드로이드/Android TextWatcher를 사용한 EditText Enable 처리

< 개발 환경 >   ●  SDK 버전 : 안드로이드 SDK 2.1    ●  API LEVEL : 7   ●  이클립스 버젼 : Indigo  ●  테스트단말 : 삼성갤럭시 S2

안드로이드/Android TextWatcher를 사용한 EditText Enable 처리

 

package arabiannight.tistroy.com;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class TestTextWatcherActivity extends Activity {
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        setLayout();
        
        etTexts[EMAIL].addTextChangedListener(emailWatcher);
        etTexts[NAME].addTextChangedListener(nameWatcher);
        etTexts[PHONE].addTextChangedListener(phoneWatcher);
        
        for(Button b : btButtons){
        	b.setEnabled(false);
        }
    }

    public void onButtonClick(View v){
    	switch (v.getId()) {
    	case R.id.et_box_01:

    		break;
    	case R.id.et_box_02:

    		break;
    	case R.id.et_box_03:

    		break;
    	case R.id.bt_confirm:
    		if(btButtons[CONFIRM].isEnabled()){
    			Toast.makeText(getApplicationContext(), 
    					"EMAIL = " + etTexts[EMAIL].getText().toString() + 
    					" 등록 되었습니다. , "+
    					"NAME = " + etTexts[NAME].getText().toString() + 
    					" 등록 되었습니다. , "+ 
    					"PHONE = " + etTexts[PHONE].getText().toString() + 
    					" 등록 되었습니다.", 
    					Toast.LENGTH_SHORT).show();
    		}else{
    			Toast.makeText(getApplicationContext(), "모두 입력해 주십시오.", 
    					Toast.LENGTH_SHORT).show();
    		}
    		break;
    	}
    }
    
 	private TextWatcher emailWatcher = new TextWatcher() {
 		@Override
 		public void onTextChanged(CharSequence s, int start, int before, int count) {
 			if(s.length() > 0){
 				btButtons[EMAIL].setEnabled(true);
 			}else{
 				btButtons[EMAIL].setEnabled(false);
 			}
 			
 			setEnable(setButtonEnable(etTexts[EMAIL], etTexts[NAME], etTexts[PHONE]));
 		}
 		@Override
 		public void beforeTextChanged(CharSequence s, int start, int count,
 				int after) {
 		}
 		@Override
 		public void afterTextChanged(Editable s) {
 		}
 	};
 	
 	private TextWatcher nameWatcher = new TextWatcher() {
 		@Override
 		public void onTextChanged(CharSequence s, int start, int before, int count) {
 			if(s.length() > 0){
 				btButtons[NAME].setEnabled(true);
 			}else{
 				btButtons[NAME].setEnabled(false);
 			}
 			
 			setEnable(setButtonEnable(etTexts[EMAIL], etTexts[NAME], etTexts[PHONE]));
 		}
 		@Override
 		public void beforeTextChanged(CharSequence s, int start, int count,
 				int after) {
 		}
 		@Override
 		public void afterTextChanged(Editable s) {
 		}
 	};
 	
 	private TextWatcher phoneWatcher = new TextWatcher() {
 		@Override
 		public void onTextChanged(CharSequence s, int start, int before, int count) {
 			if(s.length() > 0){
 				btButtons[PHONE].setEnabled(true);
 			}else{
 				btButtons[PHONE].setEnabled(false);
 			}
 			
 			setEnable(setButtonEnable(etTexts[EMAIL], etTexts[NAME], etTexts[PHONE]));
 		}
 		@Override
 		public void beforeTextChanged(CharSequence s, int start, int count,
 				int after) {
 		}
 		@Override
 		public void afterTextChanged(Editable s) {
 		}
 	};
 	
 	private void setEnable(boolean isEnable){
 		btButtons[CONFIRM].setEnabled(isEnable);
	}
	
	private boolean setButtonEnable(EditText email, EditText name, EditText phone ) {
		boolean isAllFull =  false;

		if (email != null && name.length() > 0 
				&& name != null && name.length() > 0
				&& phone != null && phone.length() > 0) {
			isAllFull = true;
		}
		return isAllFull;
	}
    
	private static final int EMAIL = 0;
	private static final int NAME = 1;
	private static final int PHONE = 2;
	private static final int CONFIRM = 3;
    private EditText[] etTexts;
    private Button[] btButtons;
    
    public void setLayout(){
    	etTexts = new EditText[]{
    			(EditText)findViewById(R.id.et_box_01),
    			(EditText)findViewById(R.id.et_box_02),
    			(EditText)findViewById(R.id.et_box_03)
    	};

    	btButtons = new Button[]{
    			(Button)findViewById(R.id.bt_check_01),
    			(Button)findViewById(R.id.bt_check_02),
    			(Button)findViewById(R.id.bt_check_03),
    			(Button) findViewById(R.id.bt_confirm)
    	};
    }
}

TestTextWatcher.zip