Andrews web View Profile
安卓提供了webView组件，webView本身就是一个浏览器的实现，它的内核基于开源webKit引擎。
Navegar por la web utilizando web View
componentes de uso web View y ImageView uso son similares, el uso común:
goBack vacío (); // Volver
vacío GOFORWARD (); // adelante
LoadURL Vacío (String url); // cargar la URL de la página especificada
, etc.
Utilice forma correcta de cargar la página web View instancia
1, xml de Presentación:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/main_bg"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<EditText
android:id="@+id/et_word"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="20dp"
android:background="@android:drawable/edit_text"
android:ems="10"
android:singleLine="true"
android:textColor="#552006"
android:textColorHint="#782f10" >
<requestFocus />
</EditText>
<Button
android:id="@+id/btnSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="搜索"
android:layout_toRightOf="@id/et_word"
android:layout_alignTop="@id/et_word"
android:layout_marginLeft="5dp"
/>
<WebView
android:id="@+id/wvSearchResult"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignLeft="@+id/etWord"
android:layout_below="@+id/et_word"
android:layout_marginTop="22dp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="25sp" />
</RelativeLayout>
2, Código MainActivity
public class MainActivity extends Activity {
private EditText ed_word =null;
private Button search =null;
private WebView web =null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
search.setOnClickListener(new OnClickListener() {
String strURL;
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String str_word =ed_word.getText().toString();
if(str_word!=null){
str_word =str_word.trim(); //去除一下空格
strURL = "http://dict.youdao.com/m/search?keyfrom=dict.mindex&q="
+ str_word; //组成请求的url
//加载网页
web.loadUrl(strURL);
web.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(WebView view,
String url) {
// TODO Auto-generated method stub
view.loadUrl(url);//不跳到系统浏览器
return true;
}
});
//进度条
web.setWebChromeClient(new WebChromeClient(){
public void onProgressChanged(WebView view, int newProgress) {
MainActivity.this.setProgress(newProgress*100);//设置进度条
};
});
}else {
Toast.makeText(MainActivity.this,"单词不能为空!" , 3000);
}
}
});
}
private void initView() {
// TODO Auto-generated method stub
ed_word =(EditText)findViewById(R.id.et_word);
search =(Button) findViewById(R.id.btnSearch);
web =(WebView)findViewById(R.id.wvSearchResult);
}
}
La adición de acceso a la red:
<uses-permission android:name="android.permission.INTERNET"/>La figura 3 los resultados operativos:
