我只是想在应用程序中的 web 视图中加载https://latestsightings.startraqdome.com/mobile/。
这是我的代码：
仪表板.Java：
@SuppressWarnings({ "deprecation", "unused" })
public class Dashboard extends Activity {
public String BASE_URL = "https://latestsightings.startraqdome.com/mobile/";
public String DASHBOARD_URL = BASE_URL + "dashboard/";
public String CONTACT_URL = BASE_URL + "contact/";
private JavascriptInterface jsInterface;
WebViewClient yourWebClient = new WebViewClient()
{
// Override page so it's load on my view only
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
// This line we let me load only pages inside Firstdroid Webpage
if ( url.contains("firstdroid") == true )
// Load new URL Don't override URL Link
return false;
// Return true to override url loading (In this case do nothing).
return true;
}
};
@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dashboard);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
WebView engine = (WebView) findViewById(R.id.web_engine);
// Progress bar.
// With full screen app, window progress bar (FEATURE_PROGRESS) doesn't seem to show,
// so we use an explicitly created one.
final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressbar);
engine.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress)
{
progressBar.setProgress(progress);
}
});
engine.setWebViewClient(new FixedWebViewClient() {
public void onPageStarted(WebView view, String url, Bitmap favicon)
{
jsInterface.enablePreferencesMenu = false;
jsInterface.modalIsVisible = false;
jsInterface.urlForSharing = null;
progressBar.setVisibility(View.VISIBLE);
}
public void onPageFinished(WebView view, String url)
{
progressBar.setVisibility(View.GONE);
}
});
engine.getSettings().setJavaScriptEnabled(true);
jsInterface = new JavascriptInterface();
try {
ComponentName comp = new ComponentName(this, Dashboard.class);
PackageInfo pinfo = getPackageManager().getPackageInfo(comp.getPackageName(), 0);
jsInterface.versionCode = pinfo.versionCode;
} catch(android.content.pm.PackageManager.NameNotFoundException e) {
}
engine.addJavascriptInterface(jsInterface, "androidlearnscripture");
engine.loadUrl(BASE_URL);
}
private WebView getEngine() {
return (WebView) findViewById(R.id.web_engine);
}
public void onBackPressed() {
WebView engine = getEngine();
String url = engine.getUrl();
if (jsInterface.modalIsVisible) {
engine.loadUrl("javascript: learnscripture.hideModal();");
} else if (url != null && (
url.equals(BASE_URL) ||
url.equals(DASHBOARD_URL) ||
!engine.canGoBack())) {
// exit
super.onBackPressed();
} else {
// go back a page, like normal browser
engine.goBack();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_menu, menu);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem prefs = menu.findItem(R.id.preferences_menuitem);
if (prefs != null) {
prefs.setVisible(jsInterface.enablePreferencesMenu);
}
super.onPrepareOptionsMenu(menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.dashboard_menuitem:
getEngine().loadUrl(DASHBOARD_URL);
return true;
case R.id.refresh_menuitem:
getEngine().reload();
return true;
case R.id.preferences_menuitem:
getEngine().loadUrl("javascript: learnscripture.showPreferences()");
return true;
case R.id.contact_menuitem:
getEngine().loadUrl(CONTACT_URL);
return true;
case R.id.share_url_menuitem:
final String url = (jsInterface.urlForSharing != null
? jsInterface.urlForSharing
: getEngine().getUrl());
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, "LearnScripture URL");
i.putExtra(Intent.EXTRA_TEXT, url);
startActivity(Intent.createChooser(i, "Share URL"));
default:
return super.onOptionsItemSelected(item);
}
}
private class FixedWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith(BASE_URL) || url.startsWith("javascript:")) {
// handle by the WebView
return false;
} else if (url.startsWith("mailto:")) {
MailTo mt = MailTo.parse(url);
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("message/rfc822");
i.putExtra(Intent.EXTRA_EMAIL, new String[]{mt.getTo()});
i.putExtra(Intent.EXTRA_SUBJECT, mt.getSubject());
i.putExtra(Intent.EXTRA_CC, mt.getCc());
i`enter code here`.putExtra(Intent.EXTRA_TEXT, mt.getBody());
view.getContext().startActivity(i);
view.reload();
return true;
} else {
// Use external browser for anything not on this site
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
view.getContext().startActivity(i);
return true;
}
}
}
// The methods of JavascriptInterface are called from javascript.
// The attributes are accessed from the Dashboard class.
// This is deliberately a dumb container class to stop possible
// security issues of javascript controlling Java app.
final class JavascriptInterface {
public boolean enablePreferencesMenu = false;
public boolean modalIsVisible = false;
public int versionCode = 0;
public String urlForSharing = null;
public void setEnablePreferencesMenu() {
enablePreferencesMenu = true;
}
public void setModalIsVisible(boolean visible) {
modalIsVisible = visible;
}
// This is useful for allowing the web site to be able to detect
// old app versions and prompt the user to upgrade.
public int getVersionCode() {
return versionCode;
}
public void setUrlForSharing(String url) {
urlForSharing = url;
// Acquire a reference to the system Location Manager
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
// Define a listener that responds to location updates
LocationListener locationListener = new LocationListener() {
public void onLocationChanged1(Location location) {
// Called when a new location is found by the network location provider.
makeUseOfNewLocation(location);
}
private void makeUseOfNewLocation(Location location) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status, Bundle extras) {}
public void onProviderEnabled(String provider) {}
public void onProviderDisabled(String provider) {}
@Override
public void onLocationChanged(Location arg0) {
// TODO Auto-generated method stub
}
};
// Register the listener with the Location Manager to receive location updates
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
}
private LocationManager getSystemService(String locationService) {
// TODO Auto-generated method stub
return null;
}
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed(); // Ignore SSL certificate errors
}
}
}
这是我的 Manifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.learnscripture.webviewapp"
android:versionCode="11"
android:versionName="1.5" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="9" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.INTERNET" />
enter code here
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="net.learnscripture.webviewapp.Dashboard"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/app_name"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
我的布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/fullscreen_content_controls"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ProgressBar android:id="@+id/progressbar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="fill_parent"
android:layout_height="3dp"
android:max="100"
android:visibility="gone"
/>
<WebView android:id="@+id/web_engine"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
当我运行它时，它会在 webview 中打开，但无法正确加载。如果我随后将 URL 更改为“”（省略 s），它有时会在浏览器中完全打开，退出我不想要的应用程序，或者在应用程序中留下空白页面。
我必须做什么？
我不是一个完全的程序员，所以请简单解释一下:)
谢谢