android开发客户端程序

package net.blogjava.mobile.browser; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.webkit.URLUtil; import android.webkit.WebView; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class Main extends Activity implements OnClickListener { private EditText metAddress; private WebView mWebview; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btnBrowse = (Button) findViewById(R.id.btnBrowse); btnBrowse.setOnClickListener(this); metAddress = (EditText) findViewById(R.id.etAddress); mWebview = (WebView) findViewById(R.id.webview); } @Override public void onClick(View view) { String address = metAddress.getText().toString(); if (URLUtil.isNetworkUrl(address)) { mWebview.loadUrl(address); } else { Toast.makeText(this, "请输入正确的网址.", Toast.LENGTH_LONG).show(); } } }