This is what I tried to perform the task if anyone can help out it would be most appreciated. So in this code it will display just the cover page. I read http://www.siegmann.nl/static/epublib/apidocs/ that you could use getSpine() to get everything but it only displayed one thing on my case which is cover page.
webView = (WebView)findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
AssetManager am = getAssets();
try {
InputStream epubInputStream = am.open(bookName);
book = (new EpubReader()).readEpub(epubInputStream);
} catch (IOException e) {
Log.e("epublib", e.getMessage());
}
Spine spine = book.getSpine();
for (SpineReference bookSection : spine.getSpineReferences()) {
Resource res = bookSection.getResource();
try {
InputStream is = res.getInputStream();
StringBuffer string = new StringBuffer();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
try {
while ((line = reader.readLine()) != null) {
linez = string.append(line + "\n").toString();
}
} catch (IOException e) {e.printStackTrace();}
//do something with stream
} catch (IOException e) {
e.printStackTrace();
}
}
webView.loadData(linez, "text/html", "utf-8");
So what I figured out using spine on http://www.siegmann.nl/static/epublib/apidocs/ is that it still works by sections. So I tried to figure out how many sections are there by identifying count numbers. Then placed those numbers in Resource res = spine.getResource(i);. If you would do Resource res = spine.getResource(2); It would display the spine of 2 which should be chapter 2 unless someone messes up the format of the epub.
Spine spine = book.getSpine();
List<SpineReference> spineList = spine.getSpineReferences() ;
int count = spineList.size();
tv.setText(Integer.toString(count));
StringBuilder string = new StringBuilder();
for (int i = 0; count > i; i++) {
Resource res = spine.getResource(i);
try {
InputStream is = res.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
try {
while ((line = reader.readLine()) != null) {
linez = string.append(line + "\n").toString();
}
} catch (IOException e) {e.printStackTrace();}
//do something with stream
} catch (IOException e) {
e.printStackTrace();
}
}
webView.loadData(linez, "text/html", "utf-8");
Related
I have been working on this for a while and I am about to pull my hair out!!
If I use this...
public void readFile() {
BufferedReader buffReader = null;
StringBuilder result = new StringBuilder();
try {
FileInputStream fileIn = openFileInput("VariableStore.txt");
buffReader = new BufferedReader(new InputStreamReader(fileIn));
String line;
while ((line = buffReader.readLine()) != null) {
result.append(line);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
assert buffReader != null;
buffReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
String resultString = result.toString();
String[] controlString = resultString.split("$");
// String wb = controlString[4];
// String sb = controlString[5];
((Button) this.findViewById(R.id.wakeButton)).setText(resultString);
// ((Button) this.findViewById(R.id.sleepButton)).setText(sb);
// ((Button)this.findViewById(R.id.wakeButton)).setText(result);
// ((Button)this.findViewById(R.id.wakeButton)).setText(result);
// ((Button)this.findViewById(R.id.wakeButton)).setText(result);
}
The Button.setText works fine with "resultString" or with "result" which is a string I have input formatted as xxx$xxx$xxx$xxx$xxx so when I read it back in with the readFile() I want to use .Split and put it into an array "controlString" and then assign the array elements to my widgets i.e. setText(controlString[0]); but if I so much as even uncomment the lines String wb = controlString[4]; or String sb = controlString[5]; my program crashes. Why wont the array elemts work here?
Here is my writeFile().... (Which works perfectly.
public void writeFile() {
BufferedWriter buffWriter = null;
String wb = ((Button)this.findViewById(R.id.wakeButton)).getText().toString();
String sb = ((Button)this.findViewById(R.id.sleepButton)).getText().toString();
String tb = ((EditText)this.findViewById(R.id.textHoursBetween)).getText().toString();
String ti = ((EditText)this.findViewById(R.id.textIncrementTime)).getText().toString();
String td = ((EditText)this.findViewById(R.id.textIncrementDays)).getText().toString();
String writeString = wb + "$" + sb + "$" + tb + "$" + ti + "$" + td;
try {
FileOutputStream fileOut = openFileOutput("VariableStore.txt", Context.MODE_PRIVATE);
buffWriter = new BufferedWriter(new OutputStreamWriter(fileOut));
try {
buffWriter.write(writeString);
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}finally {
try {
assert buffWriter != null;
buffWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
I found the problem...
Instead of this:
String[] controlString = resultString.split("$");
I had to use this:
String[] controlString = resultString.split(Pattern.quote("$"));
i have an text file in my assets folder called test.txt. It contains a string in the form
"item1,item2,item3
How do i read the text into and array so that I can then toast any one of the three items that are deliminated by a comma
After reading post here the way to load the file is as follows
AssetManager assetManager = getAssets();
InputStream ims = assetManager.open("test.txt");
But cant work out how to get into an array
your help is appreciated
Mark
This is one way:
InputStreat inputStream = getAssets().open("test.txt");
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
int i;
try {
i = inputStream.read();
while (i != -1)
{
byteArrayOutputStream.write(i);
i = inputStream.read();
}
inputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String[] myArray = TextUtils.split(byteArrayOutputStream.toString(), ",");
Here is a sample code :
private void readFromAsset() throws UnsupportedEncodingException {
AssetManager assetManager = getAssets();
InputStream is = null;
try {
is = assetManager.open("your_path/your_text.txt");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedReader reader = null;
reader = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
String line = "";
try {
while ((line = reader.readLine()) != null) {
//Read line by line here
}
} catch (IOException e) {
e.printStackTrace();
}
}
I am trying to check the status of a SHOUTcast stream using this URL:
http://85.17.167.136:8684/7.html
... which returns data like:
<HTML><meta http-equiv="Pragma" content="no-cache"></head><body>7,1,77,100,7,128,+44(0)7908 340 811 Follow Us #visionradiouk</body></html>
I know that the after the first comma returns 1 if the stream is up and running or returns 0 if the stream is down. My problem is getting the html of that page? I use this code, which works on other websites like Google etc.
TextView tView = (TextView) findViewById(R.id.textView1);
String htmlCode = "";
try {
URL url = new URL("http://85.17.167.136:8684/7.html");
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
String inputLine;
while ((inputLine = in.readLine())!= null)
htmlCode += inputLine;
System.out.println(htmlCode);
tView.setText(htmlCode);
in.close();
} catch (Exception e){
System.out.println("error");
}
}
Any ideas on what I am doing wrong?
Heres Pulsarman325's working solution, tidied up, with a little extra stuff i had to add to get it to work (try/catch and variable initialisations)
String url = "http://molestia.ponify.me:8062";
URL url2=null;
try
{
url2 = new URL(url + "/7.html");
}
catch (MalformedURLException e1)
{
e1.printStackTrace();
}
URLConnection con=null;
try
{
con = url2.openConnection();
}
catch (IOException e1)
{
e1.printStackTrace();
}
con.setRequestProperty("User-Agent", "Mozilla/5.0");
Reader r = null;
try
{
r = new InputStreamReader(con.getInputStream());
}
catch (IOException e)
{
e.printStackTrace();
}
StringBuilder buf = new StringBuilder();
int ch=0;
while (true)
{
try
{
ch = r.read();
}
catch (IOException e)
{
e.printStackTrace();
}
if (ch < 0)
break;
buf.append((char) ch);
}
String str = buf.toString();
String trackinfo = str.split(",")[6].split("</body>")[0];
Log.d("HTML", trackinfo);
We are displaying an epub file on the screen through our application. The file is saved in SDCard and the following logic we are using for getting the file data from SDCard and displaying in Screen. But its taking long time to load the content in screen. Any issues with my code? please help me friends.
File rootDir = Environment.getExternalStorageDirectory();
EpubReader epubReader = new EpubReader();
try {
book = epubReader.readEpub(new FileInputStream("/sdcard/forbook.epub"));
Toast.makeText(getApplicationContext(), "Book : " + book, Toast.LENGTH_LONG).show();
} catch (FileNotFoundException e) {
Toast.makeText(getApplicationContext(), "File Not Found" + book, Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
Toast.makeText(getApplicationContext(), "IO Found" + book, Toast.LENGTH_LONG).show();
e.printStackTrace();
}
Spine spine = book.getSpine();
List<SpineReference> spineList = spine.getSpineReferences() ;
int count = spineList.size();
StringBuilder string = new StringBuilder();
String linez = null;
for (int i = 0; count > i; i++) {
Resource res = spine.getResource(i);
try {
InputStream is = res.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
try {
String line;
while ((line = reader.readLine()) != null) {
linez = string.append(line + "\n").toString();
//linez=line.toString();
}
} catch (IOException e) {e.printStackTrace();}
//do something with stream
} catch (IOException e) {
e.printStackTrace();
}
}
final String mimeType = "text/html";
final String encoding = "UTF-8";
webView.loadDataWithBaseURL("", linez, mimeType, encoding,null);
}
Please help me friends.
An ePub is essentially nothing more than a zip file with a number of HTML files inside. Often, there will be one file (resource) per chapter / section of the book.
What you're doing right now is looping through the spine of the book, loading all the resources when you can probably display 1 at most on the screen at a time.
I'd suggest only loading the resource you want to show, which should speed up the loading time dramatically.
First of all you do not use StringBuilder correctly - it's quite useless in your code. Secondly, decide if you really need nested try-catch block. Thirdly, define local variables outside the loops. Concerning all of this I'd rewrite your code this way:
StringBuilder string = new StringBuilder();
Resource res;
InputStream is;
BufferedReader reader;
String line;
for (int i = 0; count > i; i++) {
res = spine.getResource(i);
try {
is = res.getInputStream();
reader = new BufferedReader(new InputStreamReader(is));
while ((line = reader.readLine()) != null) {
string.append(line + "\n");
}
// do something with stream
} catch (IOException e) {
e.printStackTrace();
}
}
...
webView.loadDataWithBaseURL("", string.toString(), mimeType, encoding, null);
However, I suppose, this wouldn't drastically reduce the time needed to load your content, so I'd recommend you to use Traceview to find the bottleneck in your code and to use AsyncTask for time-consuming operations.
I am trying to make the computer read a text file full of words and add it to an ArrayList. I made it work on a regular Java application, but can't get it to work on Android. Can someone help me out?
try {
FileInputStream textfl = (FileInputStream) getAssets().open("test.txt");
DataInputStream is = new DataInputStream(textfl);
BufferedReader r = new BufferedReader(new InputStreamReader(is));
String strLine;
while ((strLine = r.readLine()) != null) {
tots.add(strLine); //tots is the array list
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
I keep getting a error. The text file is 587kb, so could that be a problem?
try this.
private static String readTextFile(String fileName)
{
BufferedReader in = null;
try
{
in = new BufferedReader(new InputStreamReader(getAssets().open(fileName)));
String line;
final StringBuilder buffer = new StringBuilder();
while ((line = in.readLine()) != null)
{
buffer.append(line).append(System.getProperty("line.separator"));
}
return buffer.toString();
}
catch (final IOException e)
{
return "";
}
finally
{
try
{
in.close();
}
catch (IOException e)
{
// ignore //
}
}
}