こんにちは、私はアンドロイドが初めてで、「Simple Web Browser」用の小さなアプリを書きました。しかし、私のブラウザはページを開くことができず、Wi-Fiがオンで通常のブラウザがそのデバイスで動作していても、ネットワークが利用できない（ Webページが利用できません）というエラーが表示されます。
以下のコードを確認してください:: SimpleBrowser.java
package com.thenewboston.travis;
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.EditText;
public class SimpleBrowser extends Activity implements OnClickListener{
Button bGo,bBack,bForward,bHistory,bRefresh;
EditText et;
WebView wb;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.simplebrowser);
bGo = (Button)findViewById(R.id.go);
bBack = (Button)findViewById(R.id.bBack);
bForward = (Button)findViewById(R.id.bForward);
bHistory = (Button)findViewById(R.id.bHistory);
bRefresh = (Button)findViewById(R.id.bRefresh);
et = (EditText)findViewById(R.id.editAddress);
wb = (WebView)findViewById(R.id.webView);
wb.setWebViewClient(new ourViewClient());
bGo.setOnClickListener(this);
bBack.setOnClickListener(this);
bForward.setOnClickListener(this);
bHistory.setOnClickListener(this);
bRefresh.setOnClickListener(this);
//wb.loadUrl("http://www.gmail.com");
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
switch(arg0.getId())
{
case R.id.go:
String website = et.getText().toString();
wb.loadUrl(website);
break;
case R.id.bBack:
if(wb.canGoBack())
wb.goBack();
break;
case R.id.bForward:
if(wb.canGoForward())
wb.goForward();
break;
case R.id.bHistory:
wb.clearHistory();
break;
case R.id.bRefresh:
wb.reload();
break;
}
}
}
ourViewClient.java
package com.thenewboston.travis;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class ourViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
}
および .... Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.thenewboston.travis"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.SET_WALLPAPER"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="KCRaju"
android:theme="@style/AppTheme">
<activity
android:name="com.thenewboston.travis.Splash"
android:label="KCRaju"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".StartingPoint"
android:label="KCRaju" >
<intent-filter>
<action android:name="com.thenewboston.travis.STARTINGPOINT" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Menu"
android:label="KCRaju" >
<intent-filter>
<action android:name="com.thenewboston.travis.MENU" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".prefs"
android:label="KCRaju" >
<intent-filter>
<action android:name="com.thenewboston.travis.prefs" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".About"
android:label="KCRaju"
android:theme="@android:style/Theme.Dialog" >
<intent-filter>
<action android:name="com.thenewboston.travis.About" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name=".TextPlay" android:label="@string/app_name" >
</activity>
<activity android:name=".Email" android:label="@string/app_name" >
</activity>
<activity android:name=".Camera" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".Data" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".GFX" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".GFXSurface" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".SoundStuff" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".Slider" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".Memory" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".OpenedClass" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".Tabs" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
<activity android:name=".SimpleBrowser" android:label="@string/app_name" android:screenOrientation="portrait" >
</activity>
</application>
</manifest>