Android入门-网页展示（1）

目标效果





基本要求和基础知识和上一篇相同

1、新建项目YouDaoDictionary

2、在activity_main.xml中设置页面布局






<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/mainbg"
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/etWord"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="27dp"
android:background="@android:drawable/edit_text"
android:ems="10"
android:singleLine="true"
android:textColor="#552006"
android:textColorHint="#782f10" >
<requestFocus />
</EditText>
<WebView
android:id="@+id/wvSearchResult"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignLeft="@+id/etWord"
android:layout_below="@+id/etWord"
android:layout_marginTop="22dp"
android:background="@drawable/bg_roundcorner"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="25sp" />

<Button
android:id="@+id/btnSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/wvSearchResult"
android:layout_alignParentRight="true"
android:background="@drawable/ibsearchword"
android:onClick="searchWord" />

</RelativeLayout>3、MainActivity.java中代码
public class MainActivity extends Activity {
private EditText etWord;
private WebView wvResult;

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

initViews();
}

private void initViews() {
etWord = (EditText) findViewById(R.id.etWord);
wvResult = (WebView) findViewById(R.id.wvSearchResult);
wvResult.getSettings().setJavaScriptEnabled(true);
wvResult.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
}

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

public void searchWord(View view) {
String word = etWord.getText().toString();
Toast.makeText(this, "word="+word, Toast.LENGTH_LONG).show();
if (TextUtils.isEmpty(word)) {
Toast.makeText(this, "查询内容不能为空!", Toast.LENGTH_LONG).show();
} else {

final String strUrl = "http://dict.youdao.com/m/search?keyfrom=dict.mindex&vendor=&q="
+ word;
wvResult.loadUrl(strUrl);
}
}
}
5、同时不要忘记AndroidManifest.xml中
</application>
<uses-permission android:name="android.permission.INTERNET" />

</manifest>项目完成