Android - TextChange

# Android - TextChange : android, TextChange ```java package exam.Widget; import android.app.*; import android.graphics.*; import android.os.*; import android.text.*; import android.widget.*; import exam.AndroidExam.*; public class TextChange extends Activity { EditText mEdit; TextView mText; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.widget_textchange); mEdit = (EditText)findViewById(R.id.edit); mText = (TextView)findViewById(R.id.text); mEdit.addTextChangedListener(mWatcher); } TextWatcher mWatcher = new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int before, int count) { mText.setText("echo:" + s); } }; } ```