public class MainActivity extends Activity {
 private Button btnSearch;
 private Button btnClear;
 private EditText editText;
 private WebView reswebView;

 private void SetView() {
  btnSearch = (Button) findViewById(R.id.btnsearch);
  btnClear = (Button) findViewById(R.id.btnclear);
  editText = (EditText) findViewById(R.id.editText);
  reswebView = (WebView) findViewById(R.id.reswebView);
  btnSearch.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {
    String strUri = editText.getText().toString();
    strUri = strUri.trim();
    if (strUri.length() == 0) {
     Toast.makeText(getApplicationContext(), "请输入查询字符", 1).show();
    } else {
     String strURL = "http://dict.youdao.com/m/search?keyfrom=dict.mindex&q=" + strUri;
     reswebView.loadUrl(/tech-mobile-dev/strURL/index.html);
    }
   }
  });
  btnClear.setOnClickListener(new OnClickListener() {
   @Override
   public void onClick(View v) {
    editText.setText("");
   }
  });
 }

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