android - 如何在编辑文本键盘上使用空格进行研究

Question

我开发了一个简单的浏览器来研究具有编辑文本和 Web View 的网络信息。您可以在编辑文本中写入关键字，然后按一个按钮在 Google 上重新搜索您的关键字并在 WebView 中查看结果。

现在我想让使用键盘上的空格键开始研究成为可能。

这可能吗？我该怎么办？

这是我的代码:

public class MainActivity extends AppCompatActivity {

WebView web;
EditText adress;
String url = "";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    web = (WebView) findViewById(R.id.wv);
    adress = (EditText) findViewById(R.id.et1);
    web.setWebViewClient(new WebViewClient());
    web.getSettings().getBuiltInZoomControls();

}

public void Research(View v) {

    url += adress.getText().toString();
    Toast.makeText(this, "Loading...", Toast.LENGTH_SHORT).show();
    web.loadUrl("https://www.google.it/search?q=" + url);
    url = "";
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    switch (id) {
        case R.id.p:
            startActivity(new Intent(MainActivity.this, MainActivityBookmarks.class));
            break;
        case R.id.r:
            web.reload();
            Toast.makeText(this, "Loading...", Toast.LENGTH_SHORT).show();
            break;
        case R.id.b:
            if (web.canGoBack()) {
                web.goBack();
            } else {
                Toast.makeText(this, "You can't go more back!", Toast.LENGTH_SHORT).show();
            }
            break;
        case R.id.f:
            if (web.canGoForward()) {
                web.goForward();
            } else {
                Toast.makeText(this, "You can't go more foward!", Toast.LENGTH_SHORT).show();
            }
            break;
    }
    return false;
}}

Answer 1

@Override    
public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (userPressedKey) {
            if (keyCode == KeyEvent.KEYCODE_SPACE) {
             adress.setText("");
             return true;
            }
        }
        super.onKeyDown(keyCode, event);
    }