Develop Reference

Transform txt file into string

I have downloaded a txt file from Firebase, and I have the path and everything, and I'm trying to convert this file into a String, so I can set all the content of the file to another method
i have tried this
StringBuilder text = new StringBuilder();
try {
BufferedReader br = new BufferedReader(new FileReader(myTxtFile));
String line;
while ((line = br.readLine()) != null) {
text.append(line);
text.append('\n');
}
Log.e("OUTPUTSTRING",""+br);
br.close();
}
catch (IOException e) {
//You'll need to add proper error handling here
}
but in my log I cant see the content of the file, instead, it returns this
java.io.BufferedReader#5eb1add

That's because you're logging br which is an object of BufferedReader. You probably want to build the string using text.toString() and log it.

Putting long text string into textviews

In every new version of my app I like to put a What's New section which is basically a long(-ish) text that tends to have a lot of apostrophes and percentage signs and newlines and what have you.
Is there some easier way of loading it in a textview other than escaping all the problematic characters and replacing newlines with \n or <br />?

Why don't you store the text as a Raw text file in resource folder and read it
InputStream inputStream = getResources().openRawResource(R.raw.share);
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
StringBuilder text = new StringBuilder();
try {
while (( line = reader.readLine()) != null) {
text.append(line);
text.append('\n');
}
} catch (IOException e) {
e.printStackTrace();
}
And then set to TextView
textView.setText(text.toString());

Android display text from a text file into my TextView in a non-stop loop

I am working on an android app in which I have a text file with a list of text and duration of display in seconds.
The app displays the text listed in for the mentioned duration.
It keeps looping non-stop.
Now my question is: how can I retrieve the text in the text file and display it into my TextView?

final StringBuilder text = new StringBuilder();
try {
BufferedReader br = new BufferedReader(new FileReader(
file));
String line;
while ((line = br.readLine()) != null) {
text.append(line);
text.append("\n");
}
} catch (IOException e) {
}

Simplest way to download text from URL

Is there a simplest way to download small text string from URL like this one:"http://app.georeach.com/ios/version.txt"
In iOS its pretty simple. But for android em not finding something good. what is the method for getting text like that from the above URL??
I used this code in onCreate of hello app,n app crashed:
try {
// Create a URL for the desired page
URL url = new URL("http://app.georeach.com/ios/version.txt");
// Read all the text returned by the server
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
String str;
StringBuilder sb = new StringBuilder(100);
while ((str = in.readLine()) != null) {
sb.append(str);
// str is one line of text; readLine() strips the newline character(s)
}
in.close();
tv.setText(sb.toString());
} catch (MalformedURLException e) {
tv.setText("mal");
} catch (IOException e) {
tv.setText("io");
}

You have to create a new class extended from AsyncTask. You can't do network stuff in the main thread. It could work but you may not want to do that. Take a look at this link : http://developer.android.com/reference/android/os/AsyncTask.html
Also don't forget to add Internet permissions to your AndroidManifest.xml.

Try this:
URL url = new URL("http://bla-bla...");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
InputStream in = connection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line;
while ((line = br.readLine()) != null) {
sb.append(line);
}
// your text is here
String text = sb.toString()
Do not forget to catch and handle IOException and close all streams.

An "easier" way would be this:
String url2txt = null;
try {
// Being address an URL instance
url2txt = new Scanner(address.openStream(), "UTF-8").useDelimiter("\\A").next();
} catch (IOException e) { ... }
The thing is what you consider "easier". As far as code goes, probably this is the shortest way, but it depends on what you want to do afterwards with the obtained text.

Replacing a line of text in an android external text file

I just want to delete 2 lines of text from a text file that I created. Currently, this is what I'm trying to get rid of the 2 lines:
private void deleteDataFromFile(String title, String Date) {
try {
//open the file
FileInputStream myIn= openFileInput(FILENAME);
//the reader given the input file stream.
InputStreamReader inputReader = new InputStreamReader(myIn);
//Aftert he inputstream is open, need also a bufferedReader
BufferedReader BR = new BufferedReader(inputReader);
//holds a line of input
String line;
//used for only erasing one date.
int counter = 0;
while ((line = BR.readLine()) != null && counter < 1) {
if (line.equals(title)) {
line.replace(title, "" + "\n");
line = BR.readLine();
line.replace(Date, "" + "\n");
counter++;
}
}
BR.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
I realize that since I'm using the replace function on a string it has no effect on the actual file itself, but I can not find any other function in the IO library to affect the text file. What I'm thinking about doing is creating a new file on the phone with the exact contents of this file and just deleting the 2 lines from it. That seems troublesome and inefficient though, and I'd like to avoid it. Any suggestions?