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 imgCacheRead(Context context, String cacheImgFileName) {
    int len = 1024;
    byte[] buffer = new byte[len];
    try {//from w  ww .  java 2s. c om
        FileInputStream fis = context.openFileInput(cacheImgFileName);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        int nrb = fis.read(buffer, 0, len); // read up to len bytes
        while (nrb != -1) {
            baos.write(buffer, 0, nrb);
            nrb = fis.read(buffer, 0, len);
        }
        buffer = baos.toByteArray();
        fis.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    try {
        return new String(buffer, "utf-8");
    } catch (UnsupportedEncodingException e) {

        return null;
    }
}

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From source file:Main.java

public static Object readObject(Context context, String filename) {
    FileInputStream in = null;/*w w  w .  ja va 2  s .com*/
    ObjectInputStream oin = null;
    Object data = null;
    try {
        in = context.openFileInput(filename + ".odb");
        oin = new ObjectInputStream(in);
        data = oin.readObject();
        oin.close();
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return data;
}

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From source file:Main.java

public static String readInternalFileContent(Context content, String fileName) {
    String file = new String(), tmp;
    try {//from   w ww . j ava2 s . c  o  m
        // Read the file
        BufferedReader bf = new BufferedReader(new InputStreamReader(content.openFileInput(fileName)));
        while ((tmp = bf.readLine()) != null) {
            file += tmp;
        }
        bf.close();
    } catch (IOException e) {
        Log.e("JSO reading", "Error reading the file " + fileName + "\n" + e.getMessage());
    }
    return file;
}

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From source file:nl.spellenclubeindhoven.dominionshuffle.DataReader.java

public static String readStringFromFile(Context context, String filename) {
    try {//from ww w .j  ava  2s . c o m
        return readStringFromStream(context.openFileInput(filename));
    } catch (FileNotFoundException ignore) {
        ignore.printStackTrace();
    }

    return "";
}

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From source file:Main.java

public static int loadUserInfo(Context c) throws Exception {
    ArrayList<String> fileContents = new ArrayList<String>();
    BufferedReader br;/* w w w  .ja va 2 s.  c  o m*/

    br = new BufferedReader(new InputStreamReader(c.openFileInput(userInfoPath)));

    String nextLine = br.readLine();
    while (nextLine != null) {
        fileContents.add(nextLine);
        nextLine = br.readLine();
    }
    br.close();

    String[] info = new String[nFields];
    for (int i = 0; i < nFields; i++) {
        info[i] = "";
    }

    int nC = 0;
    for (String f : fileContents) {
        if (!f.equals(separator)) {
            info[nC] += f + eol;
        } else {
            info[nC] = info[nC].trim();
            nC += 1;
        }
    }
    userInfo = info;
    return nC;
}

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From source file:Main.java

public static int[] fileToIntArray(Context myContext, String filename, int size) {

    int[] array = new int[size];
    int i = 0;/*from   ww  w.j  a  v a  2 s  .  c o  m*/
    FileInputStream inputStream;
    try {
        int c;
        inputStream = myContext.openFileInput(filename);
        StringWriter writer = new StringWriter();
        while ((c = inputStream.read()) != -1) {
            writer.append((char) c);
        }
        String ints[] = writer.toString().split("\n");
        for (String s : ints) {
            array[i++] = Integer.parseInt(s);
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

    return array;
}

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From source file:Main.java

private static boolean isOptedOut(Context appContext, boolean shouldAsk) {
    boolean optedOut = false;
    FileInputStream in = null;/*from  w  w w.  j a  v  a2 s  .c o m*/
    try {
        in = appContext.openFileInput(QCMEASUREMENT_OPTOUT_STRING);
        optedOut = in.read() != 0;
    } catch (FileNotFoundException e) {
        if (shouldAsk)
            askEveryone(appContext, false, false);
    } catch (IOException ignored) {
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (IOException ignored) {
        }
    }

    return optedOut;

}

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From source file:io.lqd.sdk.model.LQLiquidPackage.java

public static LQLiquidPackage loadFromDisk(Context context) {
    LQLog.data("Loading from local storage");
    try {// ww w  . j a v  a  2  s  .  c o m
        FileInputStream fileInputStream = context.openFileInput(LIQUID_PACKAGE_FILENAME + ".vars");
        ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
        Object result = objectInputStream.readObject();
        objectInputStream.close();
        return (LQLiquidPackage) result;
    } catch (IOException e) {
        LQLog.infoVerbose("Could not load liquid package from file");
    } catch (ClassNotFoundException e) {
        LQLog.infoVerbose("Could not load liquid package from file");
    }
    return new LQLiquidPackage();
}

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From source file:it.nicola_amatucci.util.JsonAndroidLocalIO.java

public static <T> T loadData(Context context, String filename, Class<T> obj) {
    StringBuilder strContent = new StringBuilder("");
    try {/* w w  w  . j a  v a  2 s  .  c  o m*/
        BufferedInputStream in = new BufferedInputStream(context.openFileInput(filename));

        int ch;
        while ((ch = in.read()) != -1)
            strContent.append((char) ch);

        in.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    if (strContent.length() > 0) {
        try {
            Log.i("TAG", strContent.toString());
            JSONObject json = new JSONObject(strContent.toString());
            return Json.object_from_json(json, obj);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    return null;
}

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From source file:Main.java

@SuppressWarnings("unchecked")
public static Parcelable readParcelable(Context context, String fileName, ClassLoader classLoader) {
    Parcelable parcelable = null;//  w  ww .  ja  v a2s.  c  o m
    FileInputStream fis = null;
    ByteArrayOutputStream bos = null;
    try {
        fis = context.openFileInput(fileName);
        if (fis != null) {
            bos = new ByteArrayOutputStream();
            byte[] b = new byte[4096];
            int bytesRead;
            while ((bytesRead = fis.read(b)) != -1) {
                bos.write(b, 0, bytesRead);
            }

            byte[] data = bos.toByteArray();

            Parcel parcel = Parcel.obtain();
            parcel.unmarshall(data, 0, data.length);
            parcel.setDataPosition(0);
            parcelable = parcel.readParcelable(classLoader);
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
        parcelable = null;
    } finally {
        if (fis != null)
            try {
                fis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        if (bos != null)
            try {
                bos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
    }

    return parcelable;
}

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