После загрузки индикатора прогресса веб-сайт не загружается в веб-просмотре Android ⇐ JAVA

[Anonymous]

В моем приложении веб-просмотра начинается с индикатора выполнения после того, как экран скрытия индикатора выполнения становится полностью черным и не загружается веб-сайт в версии Android WebView Hedgehog.
Вот мой код MainActivity.java, р>
public class MainActivity extends AppCompatActivity {
String websiteURL = "https://xxxxxxxxx.com";
private WebView webview;
ProgressBar progressBar;
SwipeRefreshLayout mySwipeRefreshLayout;
private ValueCallback mUploadMessage;
private Uri mCapturedImageURI = null;
private ValueCallback mFilePathCallback;
private String mCameraPhotoPath;
private static final int INPUT_FILE_REQUEST_CODE = 1;
private static final int FILECHOOSER_RESULTCODE = 1;
private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
File imageFile = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
return imageFile;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if(! CheckNetwork.isInternetAvailable(this))//returns true if internet available
{//if there is no internet do this
setContentView(R.layout.activity_main);//Toast.makeText(this,”No Internet Connection, Chris”,Toast.LENGTH_LONG).show();
new AlertDialog.Builder(this)//alert the person knowing they are about to close
.setTitle("No internet connection available")
.setMessage("Please Check you’re Mobile data or Wifi network.")
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
})
//.setNegativeButton(“No”, null)
.show();
}
else
{
//Webview stuff
webview = findViewById(R.id.webView);
progressBar = findViewById(R.id.progressBar1);
webview.setWebViewClient(new WebViewClientDemo());
//ChromeClient is used for select file from gallery
webview.setWebChromeClient(new ChromeClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setAllowFileAccess(true);
webview.getSettings().setAllowContentAccess(true);
webview.loadUrl(websiteURL);
}//Swipe to refresh functionality
mySwipeRefreshLayout = (SwipeRefreshLayout)this.findViewById(R.id.swipeContainer);
mySwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
webview.reload();
}
});
}
private class WebViewClientDemo extends WebViewClient {
public boolean shouldOverrideUrlLoading(WebView view, String url) {

//@Override//Keep webview in app when clicking links
if(url.startsWith("tel:") || url.startsWith("whatsapp:")) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
return true;
}
else if (url.startsWith("http") || url.startsWith("https")) {
/*view.loadUrl(url);*/
return false;
}
/*else if (url.startsWith("intent")) {
try {
Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
String fallbackUrl = intent.getStringExtra("browser_fallback_url");
if (fallbackUrl != null) {
view.loadUrl(fallbackUrl);
return false;
}
} catch (URISyntaxException e) {
//not an intent uri
}
return true;
}*/
// do your handling codes here, which url is the requested url
// probably you need to open that url rather than redirect:
if ( url.contains(".pdf")){
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(url), "application/pdf");
try{
view.getContext().startActivity(intent);
} catch (ActivityNotFoundException e) {
//user does not have a pdf viewer installed
}
} else {
webview.loadUrl(url);
}

return false; // then it is not handled by default action
}

@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}

@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
/*mySwipeRefreshLayout.setRefreshing(false);*/
progressBar.setVisibility(View.GONE);
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Log.e("error",description);
}
}//set back button functionality
public class ChromeClient extends WebChromeClient {
// For Android 5.0
public boolean onShowFileChooser(WebView view, ValueCallback filePath, WebChromeClient.FileChooserParams fileChooserParams) {
// Double check that we don't have any existing callbacks
if (mFilePathCallback != null) {
mFilePathCallback.onReceiveValue(null);
}
mFilePathCallback = filePath;
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
takePictureIntent.putExtra("PhotoPath", mCameraPhotoPath);
} catch (IOException ex) {
// Error occurred while creating the File
//Log.e(Common.TAG, "Unable to create Image File", ex);
}
// Continue only if the File was successfully created
if (photoFile != null) {
mCameraPhotoPath = "file:" + photoFile.getAbsolutePath();
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(photoFile));
} else {
takePictureIntent = null;
}
}
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.setType("image/*");
Intent[] intentArray;
if (takePictureIntent != null) {
intentArray = new Intent[]{takePictureIntent};
} else {
intentArray = new Intent[0];
}
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
startActivityForResult(chooserIntent, INPUT_FILE_REQUEST_CODE);
return true;
}

// openFileChooser for Android 3.0+
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
mUploadMessage = uploadMsg;
// Create AndroidExampleFolder at sdcard
// Create AndroidExampleFolder at sdcard
File imageStorageDir = new File(
Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES)
, "AndroidExampleFolder");
if (!imageStorageDir.exists()) {
// Create AndroidExampleFolder at sdcard
imageStorageDir.mkdirs();
}
// Create camera captured image file path and name
File file = new File(
imageStorageDir + File.separator + "IMG_"
+ String.valueOf(System.currentTimeMillis())
+ ".jpg");
mCapturedImageURI = Uri.fromFile(file);
// Camera capture image intent
final Intent captureIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
// Create file chooser intent
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
// Set camera intent to file chooser
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS
, new Parcelable[] { captureIntent });
// On select image call onActivityResult method of activity
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
// openFileChooser for Android < 3.0
public void openFileChooser(ValueCallback uploadMsg) {
openFileChooser(uploadMsg, "");
}
//openFileChooser for other Android versions
public void openFileChooser(ValueCallback uploadMsg,
String acceptType,
String capture) {
openFileChooser(uploadMsg, acceptType);
}
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
if (requestCode != INPUT_FILE_REQUEST_CODE || mFilePathCallback == null) {
super.onActivityResult(requestCode, resultCode, data);
return;
}
Uri[] results = null;
// Check that the response is a good one
if (resultCode == Activity.RESULT_OK) {
if (data == null) {
// If there is not data, then we may have taken a photo
if (mCameraPhotoPath != null) {
results = new Uri[]{Uri.parse(mCameraPhotoPath)};
}
} else {
String dataString = data.getDataString();
if (dataString != null) {
results = new Uri[]{Uri.parse(dataString)};
}
}
}
mFilePathCallback.onReceiveValue(results);
mFilePathCallback = null;
} else if (Build.VERSION.SDK_INT

Подробнее здесь: https://stackoverflow.com/questions/782 ... id-webview