我正在创建一个应用程序，其中有3rd Party URL，该URL在webview中打开。该网址包含
https
输入网址。这个网址在webview中存在。在第二个屏幕中，它显示“选择文件”，当我单击它时，什么也没有发生。
这是我使用的代码。
public static final int INPUT_FILE_REQUEST_CODE = 1;
public static final String EXTRA_FROM_NOTIFICATION = "EXTRA_FROM_NOTIFICATION";
private ValueCallback<Uri[]> mFilePathCallback;
private String mCameraPhotoPath;
WebView webView;
public WebSettings webSettings;
内部onCreate
webView = (WebView) view.findViewById(R.id.webview);
webSettings = this.webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
WebViewClientImpl webViewClient = new WebViewClientImpl(getActivity());
this.webView.setWebViewClient(webViewClient);
this.webView.clearCache(true);
this.webView.addJavascriptInterface(new WebAppInterface(getActivity()), "Android");
this.webView.getSettings().setAppCacheEnabled(true);
if (getPerspective().isNetworkAvailable()) {
this.webView.loadUrl(videokycurl);
} else {
getPerspective().openNoInternetFragment();
}
private class WebViewClientImpl extends WebViewClient {
private Activity activity = null;
WebViewClientImpl(Activity activity) {
this.activity = activity;
}
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {
if (mFilePathCallback != null) {
mFilePathCallback.onReceiveValue(null);
}
mFilePathCallback = filePathCallback;
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getActivity().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(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;
}
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed();
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
Log.e(TAG, "Page Start");
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
if (isCalled) {
view.loadUrl(url);
return shouldOverrideUrlLoading(view, url);
}
isCalled = false;
return false;
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
Log.e(TAG, "Page Stop");
}
}
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;
}
public class WebAppInterface {
Context mContext;
WebAppInterface(Context c) {
mContext = c;
}
@JavascriptInterface
public void iron(String toast) {
Log.e(TAG, "Value from Toast : " + toast);
try {
if (toast.equalsIgnoreCase("BankMandate")) {
getPerspective().openBankMandateNotRegister("", "", "");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
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;
return;
}
当我在clicked上选择文件时，注意到发生了。请帮助找出此错误 提前致谢。
答案 0 :(得分：0)
使用下面的代码解决您的问题，我已经修改了您的课程
private static final int INPUT_FILE_REQUEST_CODE = 1;
private static final String TAG = ShowWebView.class.getSimpleName();
private WebView webView;
private WebSettings webSettings;
private ValueCallback<Uri[]> mUploadMessage;
private String mCameraPhotoPath = null;
private long size = 0;
String videokycurl;
ImageView img_back;
// Storage Permissions variables
private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.CAMERA
};
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != INPUT_FILE_REQUEST_CODE || mUploadMessage == null) {
super.onActivityResult(requestCode, resultCode, data);
return;
}
try {
String file_path = mCameraPhotoPath.replace("file:", "");
File file = new File(file_path);
size = file.length();
} catch (Exception e) {
Log.e("Error!", "Error while opening image file" + e.getLocalizedMessage());
}
if (data != null || mCameraPhotoPath != null) {
Integer count = 0; //fix fby https://github.com/nnian
ClipData images = null;
try {
images = data.getClipData();
} catch (Exception e) {
Log.e("Error!", e.getLocalizedMessage());
}
if (images == null && data != null && data.getDataString() != null) {
count = data.getDataString().length();
} else if (images != null) {
count = images.getItemCount();
}
Uri[] results = new Uri[count];
// Check that the response is a good one
if (resultCode == Activity.RESULT_OK) {
if (size != 0) {
// If there is not data, then we may have taken a photo
if (mCameraPhotoPath != null) {
results = new Uri[]{Uri.parse(mCameraPhotoPath)};
}
} else if (data.getClipData() == null) {
results = new Uri[]{Uri.parse(data.getDataString())};
} else {
for (int i = 0; i < images.getItemCount(); i++) {
results[i] = images.getItemAt(i).getUri();
}
}
}
mUploadMessage.onReceiveValue(results);
mUploadMessage = null;
}
}
public static void verifyStoragePermissions(Activity activity) {
// Check if we have read or write permission
int writePermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
int readPermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE);
int cameraPermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.CAMERA);
if (writePermission != PackageManager.PERMISSION_GRANTED || readPermission != PackageManager.PERMISSION_GRANTED || cameraPermission != PackageManager.PERMISSION_GRANTED) {
// We don't have permission so prompt the user
ActivityCompat.requestPermissions(
activity,
PERMISSIONS_STORAGE,
REQUEST_EXTERNAL_STORAGE
);
}
}
现在在oncreate方法中执行此操作
verifyStoragePermissions(this);
webView = (WebView) findViewById(R.id.webview);
webSettings = webView.getSettings();
webSettings.setAppCacheEnabled(true);
webView.clearCache(true);
webSettings.setCacheMode(webSettings.LOAD_CACHE_ELSE_NETWORK);
webSettings.setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webSettings.setLoadWithOverviewMode(true);
webSettings.setAllowFileAccess(true);
this.webView.addJavascriptInterface(new WebAppInterface(this), "Android");
webView.setWebViewClient(new PQClient());
webView.setWebChromeClient(new PQChromeClient());
//if SDK version is greater of 19 then activate hardware acceleration otherwise activate software acceleration
if (Build.VERSION.SDK_INT >= 19) {
webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
} else if (Build.VERSION.SDK_INT >= 11 && Build.VERSION.SDK_INT < 19) {
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
Log.e(TAG, "URL : " + videokycurl);
webView.loadUrl(videokycurl);
现在创建一个扩展WebChromeClient的类“ PQChromeClient”
public class PQChromeClient extends WebChromeClient {
// For Android 5.0+
public boolean onShowFileChooser(WebView view, ValueCallback<Uri[]> filePath, WebChromeClient.FileChooserParams fileChooserParams) {
// Double check that we don't have any existing callbacks
if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(null);
}
mUploadMessage = filePath;
Log.e("FileCooserParams => ", filePath.toString());
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.setType("*/*");
Intent[] intentArray = new Intent[]{takePictureIntent, takeVideoIntent};
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, "Choose an action");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
startActivityForResult(chooserIntent, 1);
return true;}}
public class PQClient extends WebViewClient {
ProgressDialog progressDialog;
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
Log.e("SSL Error", "error: " + error.getPrimaryError());
handler.proceed();
}
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// If url contains mailto link then open Mail Intent
if (url.contains("mailto:")) {
// Could be cleverer and use a regex
//Open links in new browser
view.getContext().startActivity(
new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
// Here we can open new activity
return true;
} else {
// Stay within this webview and load url
view.loadUrl(url);
return true;
}
}
//Show loader on url load
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// Then show progress Dialog
// in standard case YourActivity.this
if (progressDialog == null) {
progressDialog = new ProgressDialog(ShowWebView.this);
progressDialog.setMessage("Loading...");
progressDialog.hide();
}
}
// Called when all page resources loaded
public void onPageFinished(WebView view, String url) {
webView.loadUrl("javascript:(function(){ " +
"document.getElementById('android-app').style.display='none';})()");
try {
// Close progressDialog
if (progressDialog.isShowing()) {
progressDialog.dismiss();
progressDialog = null;
}
} catch (Exception exception) {
exception.printStackTrace();
}
}
}
如果您使用的是HTTPS网址，请调用“ onReceivedSslError”方法来覆盖代码中的SSL错误。 希望这能解决您的问题。