Example usage for android.content Context openFileInput

Introduction

In this page you can find the example usage for android.content Context openFileInput.

Prototype

public abstract FileInputStream openFileInput(String name) throws FileNotFoundException;

Source Link

Document

Open a private file associated with this Context's application package for reading.

Usage

From source file:Main.java

public static String getStringFromFile(final String filePath, final Context context) throws IOException {
    final FileInputStream in = context.openFileInput(filePath);
    final InputStreamReader inputStreamReader = new InputStreamReader(in);
    final BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
    final StringBuilder sb = new StringBuilder();
    String line;//w w w.  j  a  va  2 s .c  o  m
    while ((line = bufferedReader.readLine()) != null) {
        sb.append(line);
    }

    return sb.toString();
}

From source file:Main.java

public static String GetCachedString(String filename, Context ctx) {
    try {// w  w w .  j a  v  a  2s  . com
        InputStream inputStream = ctx.openFileInput(filename);

        if (inputStream != null) {
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String receiveString = "";
            StringBuilder stringBuilder = new StringBuilder();

            while ((receiveString = bufferedReader.readLine()) != null) {
                stringBuilder.append(receiveString);
            }

            inputStream.close();
            return stringBuilder.toString();
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "";

}

From source file:Main.java

public static ObjectInputStream readObjectStream(Context context, String name)
        throws StreamCorruptedException, IOException {
    InputStream s = context.openFileInput(name);

    // FIXME - add buffering?
    return new ObjectInputStream(s);
}

From source file:Main.java

static JSONObject load(Context ctxt, String fn) throws JSONException, IOException {
    FileInputStream is = ctxt.openFileInput(fn);
    InputStreamReader reader = new InputStreamReader(is);
    BufferedReader in = new BufferedReader(reader);
    StringBuilder buf = new StringBuilder();
    String str;//from  w w  w  . ja v  a  2s .c  o m

    while ((str = in.readLine()) != null) {
        buf.append(str);
    }

    in.close();

    return (new JSONObject(buf.toString()));
}

From source file:Main.java

public static String read(Context context, String fileName) {
    try {/* ww w  .j a  v a2  s .  c  o m*/
        FileInputStream in = context.openFileInput(fileName);
        return readInStream(in);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    return "";
}

From source file:Main.java

/**
 * Read details from a file//from   w ww  .  java 2s  . co m
 * @param full_file_name
 * @return
 */
public static String readFile(String full_file_name, Context context) {
    FileInputStream fis = null;
    try {
        fis = context.openFileInput(full_file_name);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    InputStreamReader isr = new InputStreamReader(fis);
    BufferedReader bufferedReader = new BufferedReader(isr);
    StringBuilder sb = new StringBuilder();
    String line;

    try {
        while ((line = bufferedReader.readLine()) != null) {
            sb.append(line);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    // convert stringbuilder to string and split the whole file into multiple people
    return sb.toString();
}

From source file:Main.java

public static String read(Context context, String fileName) {
    try {//from w w  w. j  av  a  2  s  .c  o m
        FileInputStream in = context.openFileInput(fileName);
        return readInStream(in);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "";
}

From source file:Main.java

public static String read(Context context, String fileName) {
    try {/*from   w w w . j a va 2  s. c o  m*/
        FileInputStream in = context.openFileInput(fileName);
        return readInStream(in);
    } catch (Exception e) {
        // e.printStackTrace();
        return "";
    }

}

From source file:Main.java

public static String readFromFileInput(Context context, String fileName) throws IOException {

    InputStream inputStream = context.openFileInput(fileName);
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    int i;/*from  w  ww.  j  a v a2s . c  o m*/
    try {
        i = inputStream.read();
        while (i != -1) {
            byteArrayOutputStream.write(i);
            i = inputStream.read();
        }
        inputStream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return byteArrayOutputStream.toString();
}

From source file:Main.java

@SuppressWarnings("unchecked")
public static <T> T readSerializedObject(Context context, String fileName)
        throws FileNotFoundException, IOException, ClassNotFoundException {
    FileInputStream fis = context.openFileInput(fileName);
    ObjectInputStream in = new ObjectInputStream(fis);

    T out = (T) in.readObject();/*from   w  w  w. jav  a2  s. c  om*/

    in.close();
    fis.close();
    return out;
}