Keyboard events for EditText not reaching my event handler.

[Adam Schweitzer]

I added an OnKeyListener to an EditText widget.. the problem is, this event handler never gets called when tying in the widget. And I don't understand why. Can someone explain what I'm doing wrong?

Here is some sample code to illustrate what I'm trying to do. All it is supposed to do is fill a second text box with the value of the first. But it doesn't. (Clicking on the button, though, does function as desired - and the two event handlers have the same code).

public class Fill extends Activity {
    /** Called when the activity is first created. */
	EditText e1;
	EditText e2;
	Button b;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Log.e("Fill.java", "Start onCreate");
        
        e1 = (EditText) findViewById(R.id.EditText01);
        e2 = (EditText) findViewById(R.id.EditText02);
        b = (Button) findViewById(R.id.Button01);
        
        e1.setOnKeyListener(new OnKeyListener() {
			@Override
			public boolean onKey(View v, int keyCode, KeyEvent event) {
				Log.e("Fill.java", "execute onkeylistener");
				e2.setText(e1.getText());
				return false;
			}
        	
        });
        
        b.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View arg0) {
				Log.e("Fill.java", "execute onclicklistener");
				e2.setText(e1.getText());
			}
        });
    }
}

and the associated layout:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <EditText android:text="" android:id="@+id/EditText01" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText> <EditText android:text="" android:id="@+id/EditText02" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText> <Button android:text="Click" android:id="@+id/Button01" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button> </LinearLayout>

[Adam Schweitzer]

Hi,
Can someone help me with this? I don't understand why this doesn't work - even the HelloFormStuff tutorial uses essentially the same code..

[Misha van Tol]

I can't find any bugs in the code and, at least over here, it's working as expected.
Everything I type in the first EditText field is duplicated in the second one.

[Adam Schweitzer]

I should elaborate a bit.
In the emulator, if you have not clicked on the first textbox prior to typing, it works as intended. If you click on the textbox and then type, it does not.
When deployed on a real device, it does not work either.

I have worked around this issue by using a TextWatcher (via addTextChangedListener() method of EditText) instead of an OnKeyListener.. but I have no clue why I am experiencing this behaviour.

[Misha van Tol]

I see it happening now, It's a problem (bug) of the soft keyboard. It's working fine with the keyboard using the emulator, but when you use the soft keyboard the listener is only called when you press return or delete. As far a I can see using the TextWatcher is the best workaround.