This question already has an answer here:
Android send mail with PDF file
(1 answer)
Closed 7 years ago.
I need send a PDF file attach on a message, I have a button that calls a function that open a Intent with message, email address and subject filled, but I need that the PDF file has been attached too.
This is my code and I can not find my error, someone can help me please?
public void initializeWebView() {
// Initialize the webview
webView.setResourceClient(new XWalkResourceClient(webView) {
#Override
public boolean shouldOverrideUrlLoading(XWalkView view, String stringUrl) {
if(stringUrl.equals(baseUrl)) {
return false;
}
// mailto links will be handled by the OS.
if (stringUrl.startsWith("mailto:")) {
Uri uri = Uri.parse(stringUrl);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
String fileName = "bouhnik.pdf";
String filePath = (Configuration.getMagazineAssetPath()).toString()+ File.separator + fileName;
Context c = getActivity().getApplicationContext();
File file = null;
FileOutputStream fos = null;
try {
InputStream is = c.getAssets().open(filePath);
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
fos = new FileOutputStream(file);
fos.write(buffer);
fos.close();
} catch (IOException e) {
Log.i("Ferrou",e.toString());
e.printStackTrace();
}
if (!file.exists() || !file.canRead()) {
return false;
}
intent.putExtra(intent.EXTRA_STREAM, file.getPath());
intent.setClassName("com.android.email", "com.android.mail.compose.ComposeActivity");
intent .putExtra(Intent.EXTRA_SUBJECT, "Subject");
WebViewFragment.this.startActivity(Intent.createChooser(intent, "Send email..."));
} else {
try {
URL url = new URL(stringUrl);
// We try to remove the referrer string to avoid passing it to the server in case the URL is an external link.
String referrer = "";
if (url.getQuery() != null) {
Map<String, String> variables = Configuration.splitUrlQueryString(url);
String finalQueryString = "";
for (Map.Entry<String, String> entry : variables.entrySet()) {
if (entry.getKey().equals("referrer")) {
referrer = entry.getValue();
} else {
finalQueryString += entry.getKey() + "=" + entry.getValue() + "&";
}
}
if (!finalQueryString.isEmpty()) {
finalQueryString = "?" + finalQueryString.substring(0, finalQueryString.length() - 1);
}
stringUrl = stringUrl.replace("?" + url.getQuery(), finalQueryString);
}
// Remove referrer from query string
if (!url.getProtocol().equals("file")) {
if (referrer.equals(WebViewFragment.this.getActivity().getString(R.string.url_external_referrer))) {
Uri uri = Uri.parse(stringUrl);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
WebViewFragment.this.startActivity(intent);
} else if (referrer.toLowerCase().equals(WebViewFragment.this.getActivity().getString(R.string.url_baker_referrer))) {
((IssueActivity) WebViewFragment.this.getActivity()).openLinkInModal(stringUrl);
return true;
} else {
return false;
}
} else {
stringUrl = url.getPath().substring(url.getPath().lastIndexOf("/") + 1);
int index = ((IssueActivity) WebViewFragment.this.getActivity()).getJsonBook().getContents().indexOf(stringUrl);
if (index != -1) {
Log.d(this.getClass().toString(), "Index to load: " + index + ", page: " + stringUrl);
((IssueActivity) WebViewFragment.this.getActivity()).getViewPager().setCurrentItem(index);
view.setVisibility(View.GONE);
} else {
// If the file DOES NOT exist, we won't load it.
File htmlFile = new File(url.getPath());
if (htmlFile.exists()) {
return false;
}
}
}
} catch (MalformedURLException | UnsupportedEncodingException ex) {
Log.d(">>>URL_DATA", ex.getMessage());
}
}
return true;
}
});
// Set UI Client (Start stop animations)
webView.setUIClient(new XWalkUIClient(webView) {
#Override
public void onPageLoadStopped(XWalkView view, String url, LoadStatus status) {
if(!url.isEmpty() && status == LoadStatus.FINISHED) {
if(isUserVisible) {
webView.resumeTimers();
}else{
webView.pauseTimers();
}
}
}
});
webView.load(baseUrl, null);
}
Thank's so much for everyone!!
I solve my problem change the type of Intent to:
Intent emailIntent = new Intent(Intent.ACTION_SEND);
Because this is better to email commands, and I define a emailUri where:
emailUri = Uri.fromFile(file.getAbsoluteFile());
because this get a absolute path with a file inside, and when the email client open, it open this file, not a path.
I add a type at my intent but I select the type of my attachment, so I define:
emailIntent.setType("application/pdf");
And finally:
emailIntent.putExtra(Intent.EXTRA_STREAM, uriMail);
startActivity(emailIntent);
It's works now!! Thanks :D
It looks like something is might be going wrong with your file path. Double check it. Then
1 - You need to add the package name of your application with context.getPackageName()
private String path = Environment.getExternalStorageDirectory().getPath() + context.getPackageName() + "books/"+fileName;
2 - Declare the permission inside your AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Related
I'm using google API v3 for check exist folder. If folder does not exist, then create the new folder. This is my code for creating folder
private void createFolderInDrive() throws IOException {
boolean existed = checkExistedFolder("MyFolder");
if (existed = false) {
File fileMetadata = new File();
fileMetadata.setName("MyFolder");
fileMetadata.setMimeType("application/vnd.google-apps.folder");
File file = mService.files().create(fileMetadata)
.setFields("id")
.execute();
System.out.println("Folder ID: " + file.getId());
Log.e(this.toString(), "Folder Created with ID:" + file.getId());
Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(),
"Folder is existed already", Toast.LENGTH_SHORT).show();
}
}
and here is the code for checking exist file
private boolean checkExistedFolder(String folderName) {
//File file = null;
boolean existedFolder = true;
// check if the folder exists already
try {
//String query = "mimeType='application/vnd.google-apps.folder' and trashed=false and title='" + "Evacuation Kit" + "'";
String query = "mimeType='application/vnd.google-apps.folder' and trashed=false and name='Evacuation Kit'";
// add parent param to the query if needed
//if (parentId != null) {
//query = query + " and '" + parentId + "' in parents";
// }
Drive.Files.List request = mService.files().list().setQ(query);
FileList fileList = request.execute();
if (fileList.getFiles().size() == 0 ) {
// file = fileList.getFiles().get(0);
existedFolder = false;
}
} catch (IOException e) {
e.printStackTrace();
}
return existedFolder;
fileList.getFiles().size() keep returning 3, even there is no folder on g drive. Can you guys tell me where am I doing wrong?
In the code you show, checkExistedFolder is always looking for the name "Evacuation Kit" and not using the argument folderName. Maybe this is the main reason you're always getting 3 from fileList.getFiles().size().
Also there's an assignment in if (existed = false), you should use if ( false == existed ) -using the static value in the left side of the comparison helps avoiding such mistakes-, or if (!existed). Note that it's important to check the nextPageToken when calling Files:list to check if there is more pages to look for the file. See more here https://developers.google.com/drive/api/v3/reference/files/list and Create folder if it does not exist in the Google Drive
This code will check if folder exist on drive. if exists, it will return id else create folder and returns id.
private DriveFile file;
GoogleApiClient mGoogleApiClient;
#Override
public void onConnected(#Nullable Bundle bundle) {
Log.e(TAG, "connected");
new Thread(new Runnable() {
#Override
public void run() {
DriveId Id = getFolder(Drive.DriveApi.getRootFolder(mGoogleApiClient).getDriveId(), "FOLDER_NAME");
Log.e(TAG, "run: " + Id);
}
}).start();
}
DriveId getFolder(DriveId parentId, String titl) {
DriveId dId = null;
if (parentId != null && titl != null) try {
ArrayList<Filter> fltrs = new ArrayList<>();
fltrs.add(Filters.in(SearchableField.PARENTS, parentId));
fltrs.add(Filters.eq(SearchableField.TITLE, titl));
fltrs.add(Filters.eq(SearchableField.MIME_TYPE, DriveFolder.MIME_TYPE));
Query qry = new Query.Builder().addFilter(Filters.and(fltrs)).build();
MetadataBuffer mdb = null;
DriveApi.MetadataBufferResult rslt = Drive.DriveApi.query(mGoogleApiClient, qry).await();
if (rslt.getStatus().isSuccess()) try {
mdb = rslt.getMetadataBuffer();
if (mdb.getCount() > 0)
dId = mdb.get(0).getDriveId();
} catch (Exception ignore) {
} finally {
if (mdb != null) mdb.close();
}
if (dId == null) {
MetadataChangeSet meta = new MetadataChangeSet.Builder().setTitle(titl).setMimeType(DriveFolder.MIME_TYPE).build();
DriveFolder.DriveFolderResult r1 = parentId.asDriveFolder().createFolder(mGoogleApiClient, meta).await();
DriveFolder dFld = (r1 != null) && r1.getStatus().isSuccess() ? r1.getDriveFolder() : null;
if (dFld != null) {
DriveResource.MetadataResult r2 = dFld.getMetadata(mGoogleApiClient).await();
if ((r2 != null) && r2.getStatus().isSuccess()) {
dId = r2.getMetadata().getDriveId();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return dId;
}
The code working for me with updated API on Kotlin:
override fun createFolder(name: String): Task<GoogleDriveFileHolder> {
check(googleDriveService != null) { "You have to init Google Drive Service first!" }
check(search(name, FOLDER_MIME_TYPE).not()){"folder already exist"}
return Tasks.call<GoogleDriveFileHolder>(
mExecutor,
Callable<GoogleDriveFileHolder> {
val metadata = File()
.setMimeType(FOLDER_MIME_TYPE)
.setName(name)
GoogleDriveFileHolder(
googleDriveService!!.files()
.create(metadata)
.setFields("id")
.execute() ?: throw IOException("Null result when requesting file creation.")
)
})
}
private fun search(name: String, mimeType:String): Boolean {
var pageToken: String? = null
do {
val result: FileList =
googleDriveService!!
.files()
.list()
.setQ("mimeType='$FOLDER_MIME_TYPE'")
.setSpaces("drive")
.setFields("nextPageToken, files(id, name)")
.setPageToken(pageToken)
.execute()
for (file in result.files) {
Log.d(TAG_UPLOAD_FILE , "Found file: %s (%s)\n ${file.name}, ${file.id} ")
if (name == file.name) return true
}
pageToken = result.nextPageToken
} while (pageToken != null)
return false
}
private const val FOLDER_MIME_TYPE= "application/vnd.google-apps.folder"
I'm building a media player using ReactNative. In order to accomplish such app I had to export a module I built for retrieving music metadata like album, artist, etc as well as file path.
The code above was working perfectly using jdk1.8.0_112, but since I updated to jdk1.8.0_144 It stopped working.
In this example, I'm not checking for not null, not empty, length > 0, etc, But I really do in the original one.
try {
MediaMetadataRetriever mmr = new MediaMetadataRetriever();
mmr.setDataSource("Path to the file"); // /storage/337C-1C15/Music/Edguy/Speedhoven.mp3
} catch (RuntimeException ex) {
// java.lang.RuntimeException: setDataSource failed: status = 0xFFFFFFEA
}
I'm facing two problems. On one hand, I'm not a great Android dev so getting some clues is such hard task. On the other hand, the error does provide a good description.
Just in case some of you had a better way to accomplish what I tried, I left here the whole code:
#ReactMethod
public void getAll(Callback errorCallback, Callback successCallback){
ContentResolver musicResolver = this.getCurrentActivity().getContentResolver();
Uri musicUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
Cursor musicCursor = musicResolver.query(musicUri, null, null, null, null);
if (musicCursor != null && musicCursor.moveToFirst()) {
WritableArray jsonArray = new WritableNativeArray();
MediaMetadataRetriever mmr = new MediaMetadataRetriever();
WritableMap items = new WritableNativeMap();
int titleColumn = musicCursor.getColumnIndex(android.provider.MediaStore.Audio.Media.TITLE);
int idColumn = musicCursor.getColumnIndex(android.provider.MediaStore.Audio.Media._ID);
int artistColumn = musicCursor.getColumnIndex(android.provider.MediaStore.Audio.Media.ARTIST);
try {
do {
items = new WritableNativeMap();
byte[] art;
long thisId = musicCursor.getLong(idColumn);
String thisPath = musicCursor.getString(musicCursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA));
String thisTitle = musicCursor.getString(titleColumn);
String thisArtist = musicCursor.getString(artistColumn);
String duration = musicCursor.getString(musicCursor.getColumnIndex(MediaStore.Audio.Media.DURATION));
if(thisPath != null && thisPath != "" && thisPath.endsWith(".mp3")) {
mmr.setDataSource(thisPath);
String album = mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM);
String artist = mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST);
String title = mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_TITLE);
String genre = mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_GENRE);
String encoded = "";
String encodedImage = "";
art = mmr.getEmbeddedPicture();
if (album == null) {
album = thisArtist;
}
if (artist == null) {
artist = thisArtist;
}
if (title == null) {
title = thisTitle;
}
if (art != null) {
Bitmap songImage = BitmapFactory.decodeByteArray(art, 0, art.length);
if(songImage != null){
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
songImage.compress(Bitmap.CompressFormat.JPEG, 60, byteArrayOutputStream);
byte[] byteArray = byteArrayOutputStream.toByteArray();
encodedImage = Base64.encodeToString(byteArray, Base64.DEFAULT);
String pathtoImg = "";
byte[] imageByte = Base64.decode(encodedImage, Base64.DEFAULT);
try {
pathtoImg = Environment.getExternalStorageDirectory() + "/" + thisId + ".jpg";
File filePath = new File(pathtoImg);
FileOutputStream fos = new FileOutputStream(filePath, true);
encoded = pathtoImg;
fos.write(imageByte);
fos.flush();
fos.close();
} catch (FileNotFoundException fnfe) {
errorCallback.invoke(fnfe.getMessage());
} catch (IOException ioe) {
errorCallback.invoke(ioe.getMessage());
}
}
}
String str = String.valueOf(thisId);
items.putString("id", str);
items.putString("album", album);
items.putString("artist", artist);
items.putString("title", title);
items.putString("genre", genre);
if (encoded == "") {
items.putString("cover", "");
} else {
items.putString("cover", "file://" + encoded);
}
items.putString("duration", duration);
items.putString("path", thisPath);
jsonArray.pushMap(items);
}
} while (musicCursor.moveToNext());
successCallback.invoke(jsonArray);
mmr.release();
} catch (RuntimeException e) {
errorCallback.invoke(e.toString());
mmr.release();
} catch (Exception e) {
errorCallback.invoke(e.getMessage());
mmr.release();
}
}
}
Of course, I've already taken a look at:
This post
This post
This post
After debugging and researching a lot I found the problem.
It seems that mmr.setDataSource("path") returns a RuntimeException when something is wrong with the file. This is particularly important since even when the file exists its metadata cannot be retrieved.
The solution was to use the MediaMetadataRetriever into a try/catch like this:
while(cursor.moveNext()){
try {
MediaMetadataRetriever mmr = new MediaMetadataRetriever();
mmr.setDataSource("Path to the file"); // /storage/337C 1C15/Music/Edguy/Speedhoven.mp3
} catch (RuntimeException ex) {
// something went wrong with the file, ignore it and continue
}
}
realm newbie here and facing a problem in my project. So what I want to achieve is that, in my app when I click a photo I am saving a realm object inside my database as well as caching the image locally to be used later. Here is the code for both:
#Override
public void onPhotoSelected(PXImage photo) {
PXComposition composition = null;
PXPhoto photoParent = null;
for (PXComposition pxComposition : mSession.getCompositions()) {
if (pxComposition.getItems() == null || pxComposition.getItems().size() < 1)
continue;
for (PXPhoto item : pxComposition.getItems()) {
if (item.getImage().getOriginalPath().equals(photo.getOriginalPath())) {
composition = pxComposition;
photoParent = item;
break;
}
}
}
if (composition == null && photo.isSelected()) {
mRealm.beginTransaction();
String uuid = mSession.addPhoto(photo).getUuid();
mRealm.commitTransaction(); // IMPORTANT to commit transaction. ContentDownloadTask requires PXImage to be written in Realm.
ThreadUtils.getDefaultExecutorService().submit(new ContentDownloadTask(this, photo.getOriginalPath(), uuid));
} else if (composition != null && !photo.isSelected()) {
mRealm.beginTransaction();
if (photoParent.getImage().isDownloaded()) // FIXME What if not copied yet ???
FileUtils.deleteFile(photoParent.getImage().getApplicationPath());
mSession.removePhoto(photoParent);
mRealm.commitTransaction();
}
onCheckChanged(photo);
App.log().v("SESSION", mSession.toString());
}
This is where click events on the photo are handled. After the selection click I am calling ThreadUtils.getDefaultExecutorService().submit(new ContentDownloadTask(this, photo.getOriginalPath(), uuid)); to cache the image locally. Here is the code for the ContentDownloadTask:
public class ContentDownloadTask implements Callable<Void> {
private String id;
private String path;
private Context context;
private Realm mRealm;
public static final String TAG = "ContentDownloadTask";
private static final String DIR_EXTERNAL_NAME = "Local";
private static final String FILE_EXTENSION = ".jpg";
public ContentDownloadTask(Context context, String path, String id) {
this.path = path;
this.id = id;
this.context = context;
}
#Override
public Void call() throws Exception {
try {
Log.d(TAG, "Copying From " + path);
//create output directory if it doesn't exist
final File file = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
if (file == null) {
throw new IllegalStateException("Failed to get external storage files directory");
} else if (file.exists()) {
if (!file.isDirectory()) {
throw new IllegalStateException(file.getAbsolutePath() +
" already exists and is not a directory");
}
} else {
if (!file.mkdirs()) {
throw new IllegalStateException("Unable to create directory: " +
file.getAbsolutePath());
}
}
File to = new File(file, DIR_EXTERNAL_NAME);
if (to.exists()) {
if (!to.isDirectory()) {
throw new IllegalStateException(file.getAbsolutePath() +
" already exists and is not a directory");
}
} else if (!to.mkdirs()) {
throw new IllegalStateException("Unable to create directory: " +
file.getAbsolutePath());
}
to = new File(to, fileName(this.id));
if (!to.exists())
to.createNewFile();
InputStream in = null;
if (PackageUtils.isContentUri(path)) {
Uri uri = PackageUtils.toUri(path);
in = context.getContentResolver().openInputStream(uri);
} else {
File from = new File(this.path);
in = new FileInputStream(from);
}
OutputStream out = new FileOutputStream(to);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
mRealm = Realm.getDefaultInstance();
PXImage image = mRealm.where(PXImage.class).equalTo("uuid", this.id).findFirst();
if (image == null) {
to.delete();
throw new Exception("Photo Not Found ID: " + this.id);
}
mRealm.beginTransaction();
image.setApplicationPath(to.getPath());
mRealm.commitTransaction();
mRealm.close();
Log.d(TAG, "Complete Copied From " + path + " To " + to.getAbsolutePath());
} catch (Exception e) {
Log.e(TAG, e.getMessage());
}
return null;
}
Now the null is returned at this statement: PXImage image = mRealm.where(PXImage.class).equalTo("uuid", this.id).findFirst();. Basically here I need to save the application path of the image that I cached locally inside the realm object. But it's returning null. Also this not happening every time I click the photos. This only happens sometimes and the error is not reproducible. Any kind of help will be appreciated. I have already checked the following duplicate questions:
first
second
third
fourth
public PXPhoto addPhoto(PXImage image) {
PXComposition composition = null;
PXPhoto photo = null;
boolean isLandscape = false;
int photosPerItem = getProduct().getSelectedPhotosPerItem();
switch (getProduct().getRootShortCode()) {
case Product.CategoryType.SQUARES:
case Product.CategoryType.CLASSIC:
case Product.CategoryType.WALLOGRAPHS:
case Product.CategoryType.SIGNATURES:
case Product.CategoryType.MOSAIC:
setLayoutType(image.isLandscape() ? C.LayoutType.LANDSCAPE.ordinal() : C.LayoutType.PORTRAIT.ordinal());
composition = PXComposition.initializeNewComposition(this);
photo = PXPhoto.initializePhoto(image);
break;
case Product.CategoryType.PANORAMA:
composition = PXComposition.initializeNewComposition(this);
photo = PXPhoto.initializePhoto(image);
break;
case Product.CategoryType.STRIPS:
case Product.CategoryType.POSTERS:
if (getCompositions() == null || getCompositions().size() == 0
|| (getProduct().getRootShortCode().equals(Product.CategoryType.STRIPS) &&
getCompositions().last().getItems().size() % photosPerItem == 0))
composition = PXComposition.initializeNewComposition(this);
else
composition = getCompositions().last();
photo = PXPhoto.initializePhoto(image);
break;
}
composition.addItem(photo);
composition.updateComposition();
if (!composition.isManaged()) {
Realm realm = Realm.getDefaultInstance();
composition = realm.copyToRealmOrUpdate(composition);
realm.close();
photo.setComposition(composition);
addComposition(composition);
} else
photo.setComposition(composition);
return photo;
}
EDIT:
uuid generation:
public PXPhoto() {
this.uuid = UUID.randomUUID().toString();
this.autoEnhance = false;
this.zoom = 1;
}
I'm making an android application, which saves data to a file in the settings activity.
I made some custom functions to ease writing my files, they're in a class all my activities inherit from, including the settings activity.
Custom functions:
public void WriteToFile(String filename, String tag, String value) {
try {
FileOutputStream fileOut = openFileOutput(filename + ".txt", MODE_PRIVATE);
OutputStreamWriter writer = new OutputStreamWriter(fileOut);
writer.write(ReadFile(filename + ".txt") + tag + ":" + value + ";");
writer.close();
} catch (Exception e) {
Toast.makeText(this, "ERROR: " + e.toString(), Toast.LENGTH_LONG).show();
Log.e("Error writing: ", e.toString());
}
}
public void WipeFile(String filename) {
try {
FileOutputStream fileOut = openFileOutput(filename + ".txt", MODE_PRIVATE);
OutputStreamWriter writer = new OutputStreamWriter(fileOut);
writer.write("");
writer.close();
} catch (Exception e) {
Toast.makeText(this, "ERROR: " + e.toString(), Toast.LENGTH_LONG).show();
Log.e("Error writing: ", e.toString());
}
}
public String ReadFile(String filename) {
try {
FileInputStream fileIn = openFileInput(filename + ".txt");
InputStreamReader InputRead = new InputStreamReader(fileIn);
char[] inputBuffer = new char[10000];
String content = "", readString;
int charRead;
while ((charRead = InputRead.read(inputBuffer)) > 0) {
readString = String.copyValueOf(inputBuffer, 0, charRead);
content += readString;
}
InputRead.close();
return content;
} catch (Exception e) { WipeFile(filename); return ""; }
}
public String FileValue(String filename, String tag, String defaultValue) {
String[] content = ReadFile(filename + ".txt").split(";");
for (String pair : content) {
if (pair.split(":")[0].equals(tag)) return pair.split(":")[1];
} WriteToFile(filename, tag, defaultValue); return defaultValue;
}
Settings activity:
#Override
#SuppressWarnings("ConstantConditions")
protected void onCreate(Bundle savedInstanceState) {
ToolbarTitle = "Settings";
ActivityID = R.layout.activity_settings;
ToolbarID = R.id.settings_toolbar;
ToolbarIcon = R.mipmap.settings_icon;
ActivityLayout = R.id.settings_layout;
super.onCreate(savedInstanceState);
if (prefs.getInt("LoggedinID", 0) == 0) findViewById(R.id.settings_user).setVisibility(View.GONE);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.settings_lowBattery, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
int spinnerPosition = adapter.getPosition(FileValue("settings", "Alert", "20%"));
Spinner battery = ((Spinner) findViewById(R.id.settings_battery));
battery.setAdapter(adapter);
battery.setSelection(spinnerPosition);
((Switch) findViewById(R.id.settings_notifications)).setChecked(FileValue("settings", "Notifications", "1").equals("1"));
findViewById(R.id.settings_ads).setVisibility((FileValue("settings", "Ads", "1").equals("1") ? View.VISIBLE : View.INVISIBLE));
}
#SuppressWarnings("ConstantConditions")
public void Apply(View view) {
WipeFile("settings");
WriteToFile("settings", "Notifications", (((Switch) findViewById(R.id.settings_notifications)).isChecked() ? "1" : "0"));
WriteToFile("settings", "Alert", ((Spinner) findViewById(R.id.settings_battery)).getSelectedItem().toString());
}
public void Ads(View view) {
Toast.makeText(this, "Just a prank, bro", Toast.LENGTH_SHORT).show();
WriteToFile("settings", "Ads", "0");
}
What's weird is that it all worked when it was messy and not in custom functions, any idea why?
The problem seems to occur in the ReadFile function, where InputRead.read(inputBuffer) returns -1 (No data in file).
I have no idea how to even check where the problem lies, when writing to the file or when reading from it....
Thanks ahead
PROBLEM SOLVED
1. The ReadFile function that was inside the writer.write function couldn't open the file and read it since the writer kept it open for itself.
2. That same ReadFile function was provided with (filename + ".txt"), and added ".txt" to it as well.
It seems like the problem might be in how you are appending to file...
Internally your write function opens the file, then before closing it, your read function opens the same file and closes it. It could be that either the read function is failing when it tries to open the file because it is already open, but not closed. OR it could be that when the read function closes the file it also closes the file for the write function...
So the problem seems to be that you want to append to the file in your write function, but you are implementing it poorly. You do not need to rewrite the contents to file. You just need to find the proper flag to open the file for appending.
You should use a java.util.Properties for your settings. It is like a Map<String, String>.
To load all your settings, use load(Reader reader).
To save all your settings, use save(OutputStream out, String comments).
I have a JSF2 commandlink with an image. When the image is clicked, the server will download a PDF file. While the file is downloaded after the image link is clicked, it also causes the entire page to scroll to the top of the page. the code snippet for the link is as follows:
<p:commandLink ajax="false"
action="#{refereeAssessmentSummaryBean.stateLatestFormInPAVer(project.appId)}">
<p:graphicImage name="images/pdf.png"
title="#{msg['label.downloadpdf']}" />
</p:commandLink>
How can I use the commandlink to download the PDF file, without the webpage scrolling to the top of the page every time I click on it?
Edit: FWIW, added PDF download code. This code is called as a shared method from the backing bean. As you can see, the code will set the content type before streaming the PDF data to the client.
public void downloadEformPdf(Integer appId, Integer revNo, Integer meetingId,
String password, boolean showSaveDialog, boolean getEditedIfAvailable, boolean showVersionInfo) {
User user = WebUtils.getCurrentUser();
PermissionResult permissionResult = ServiceProxy.getPermissionService().checkViewOnlineProposalPermission(user, appId, meetingId);
if (permissionResult != PermissionResult.GRANTED) {
if (!(permissionResult == PermissionResult.REJECTED_GRBE_COI_NOT_APPROVED
|| permissionResult == PermissionResult.REJECTED_GRBE_COI_NOT_DECLARED)) {
throw new PermissionDeniedException("Permission Denied");
}
}
Application appl = ServiceProxy.getAppService().getApplication(appId);
String scheme = appl.getScheme();
boolean withNomination = false;
boolean isEditedVersion = false;
byte[] pdfData;
if (getEditedIfAvailable) {
if (revNo == null) {
Appmatching appMatching = ServiceProxy.getAppFormService().getLatestAppMatching(appId,false);
revNo = appMatching.getMainRevno();
}
Appattacheditedeform editedEntry = ServiceProxy.getAppService().getEditedProposalForApplication(appId, revNo, true);
// give GRB, ER the edited version if it exists
if (editedEntry != null) {
Filestorage storage = editedEntry.getFilestorage();
pdfData = storage.getContent();
isEditedVersion = true;
} else {
pdfData = ServiceProxy.getReportService().getHMRFReportContentByRevNo(
appId.intValue(), revNo, withNomination);
}
} else { //Get the unedited version
//Get latest rev no.
if (revNo == null) {
Appmatching appMatching = ServiceProxy.getAppFormService().getLatestAppMatching(appId,false);
revNo = appMatching.getMainRevno();
}
pdfData = ServiceProxy.getReportService().getHMRFReportContentByRevNo(
appId.intValue(), revNo, withNomination);
}
FacesContext context = FacesContext.getCurrentInstance();
ExternalContext extContext = context.getExternalContext();
extContext.responseReset();
PDDocument doc = null;
try {
if (pdfData != null) {
PDFParser parser = new PDFParser(new ByteArrayInputStream(pdfData));
parser.parse();
doc = parser.getPDDocument();
AccessPermission ap = new AccessPermission();
ap.setReadOnly();
if (password != null) {
StandardProtectionPolicy spp = new StandardProtectionPolicy(password, password, ap);
spp.setEncryptionKeyLength(128);
doc.protect(spp);
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
doc.save(bos);
doc.close();
byte[] docbuff = bos.toByteArray();
String refNo = appl.getRefNo();
String filename = null;
if (showVersionInfo) {
if (isEditedVersion) {
filename = scheme.toLowerCase() + "_eform_" + refNo + "_(v" + revNo + ")_(Edited).pdf";
} else {
filename = scheme.toLowerCase() + "_eform_" + refNo + "_(v" + revNo + ")_(PA).pdf";
}
} else {
filename = scheme.toLowerCase() + "_eform_" + refNo + ".pdf";
}
extContext.setResponseContentType("application/pdf");
extContext.setResponseContentLength(docbuff.length);
extContext.setResponseHeader("Content-Disposition", (!showSaveDialog) ? "inline"
: "attachment" + "; filename=\"" + filename + "\"");
OutputStream os = extContext.getResponseOutputStream();
os.write(docbuff);
os.close();
context.responseComplete();
} else {
extContext.setResponseContentType("text/html");
Writer writer = extContext.getResponseOutputWriter();
writer.write("Cannot retrieve PDF form for this proposal.");
writer.close();
context.responseComplete();
}
} catch (IOException e) {
logger.log(Level.ERROR, e.getMessage(), e);
} catch (COSVisitorException e) {
logger.log(Level.ERROR, e.getMessage(), e);
} catch (BadSecurityHandlerException e) {
logger.log(Level.ERROR, e.getMessage(), e);
} finally {
}
}
How do you generate the PDF?
Did you set a mimetype so that the brower will recognize that you respond with a pdf?
Did you also prevent primefaces from continuing the response after you have written your PDF file to it? (use facesContext.responseComplete(); for that)
When you use the default HTML link tag <a />, you have to set href='javascript:void(0)' to avoid the current page to scroll to the top.
Maybe there is a way with a p:commandLink to do the same thing
<p:commandLink url="javascript:void(0)" ... /> ??
Hope this will help you to resolve your problem
I think it's because you are using ajax=false.
If you are not using ajax the whole page will be reloaded.
Either remove it or change to ajax=true and give it a try.
Edit:
I was wrong. ajax=false is required when downloading files.