Android -

marine8888

方法一.利用View.OnKeyListener"同步"显示
    
 
 
EditText  myEdit = (EditText)findViewById(R.id.myEdit);TextView myText = (TextView)findViewById(R.id.myText);myEdit.setOnKeyListener(new EditText.OnClickListener(){public boolean onKey(View v , int keyCode  , KeyEvent event){       myText.setText(myEdit.getText());       return false;}});方法二.  利用TextWatcher,真正实现同步
import android.app.Activity;import android.os.Bundle;import android.text.Editable;import android.text.TextWatcher;import android.widget.EditText;import android.widget.TextView;public class TextWatcherDemo extends Activity implements TextWatcher{    /** Called when the activity is first created. */private TextView myText;private EditText myEdit;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                myText=(TextView)findViewById(R.id.text);        myEdit=(EditText)findViewById(R.id.edit);                myEdit.addTextChangedListener(this);    }@Overridepublic void afterTextChanged(Editable s) {// TODO Auto-generated method stub}@Overridepublic void beforeTextChanged(CharSequence s, int start, int count,int after) {// TODO Auto-generated method stub}@Overridepublic void onTextChanged(CharSequence s, int start, int before, int count) {// TODO Auto-generated method stubmyText.setText(myEdit.getText());}    }