来自Numberpad的Android模拟器键盘输入不再有效

EditText editText = findViewById(R.id.editText);
editText.requestFocus();

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        EditText editText = findViewById(R.id.editText);
        editText.setOnKeyListener(new View.OnKeyListener() {
            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    switch (keyCode) {
                        case KeyEvent.KEYCODE_0:
                        case KeyEvent.KEYCODE_1:
                        case KeyEvent.KEYCODE_2:
                        // ... 处理其他数字键
                            editText.setText(editText.getText().toString() + ((char) event.getUnicodeChar()));
                            return true;
                    }
                }
                return false;
            }
        });
    }
}