How to Reading and Writing files to Internal Stoarage in Android

Via : OpenAndroid.in
Tags : #Source_Code, #Tips__Tricks, #Tools
Orginal Post: How to Reading and Writing files to Internal Stoarage in Android

Reading and Writing files to Internal Stoarage in Android
Writing file to Internal Storage

[code lang="java"]
public static void writeFileInternalStorage(String strWrite, Context context,String fileName)

try

// Check if Storage is Readable
if (isSdReadable()) // isSdReadable()e method is define at bottom of the post

String smsfilename = fileName;
FileOutputStream fos = context.openFileOutput(smsfilename,Context.MODE_PRIVATE);
fos.write(strWrite.getBytes());
fos.flush();
fos.close();


catch (Exception e)

// Your Code



[/code]

Write File to SD Card

[code lang="java"]

public static void writeFileOnSDCard(String strWrite, Context context,String fileName)


try

if (isSdReadable()) // isSdReadable()e method is define at bottom of the post

String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath();
File myFile = new File(fullPath + File.separator + "/"+fileName);

FileOutputStream fOut = new FileOutputStream(myFile);
OutputStreamWriter myOutWriter = new OutputStreamWriter(fOut);
myOutWriter.append(strWrite);
myOutWriter.close();
fOut.close();


catch (Exception e)

//do your stuff here



[/code]

Read file from Internal Storage

[code lang="java"]

public static String readFileFromSDCard(String fileName,Context context)

String stringToReturn = "";
try

if(isSdReadable()) // isSdReadable()e method is define at bottom of the post

String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "/"+fileName;

InputStream inputStream = context.openFileInput(fullPath);

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();
stringToReturn = stringBuilder.toString();



catch (FileNotFoundException e)

Log.e("TAG", "File not found: " + e.toString());

catch (IOException e)

Log.e("TAG", "Can not read file: " + e.toString());


return stringToReturn;


[/code]


Read File from SD Card

[code lang="java"]

public static String readFileInternalStorage(String fileName, Context context)

String stringToReturn = " ";
try

if(isSdReadable()) // isSdReadable()e method is define at bottom of the post

String sfilename = fileName;
InputStream inputStream = context.openFileInput(sfilename);

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();
stringToReturn = stringBuilder.toString();



catch (FileNotFoundException e)

Log.e("TAG", "File not found: " + e.toString());

catch (IOException e)

Log.e("TAG", "Can not read file: " + e.toString());


return stringToReturn;


[/code]



Method to Check whether Storage is Readable

[code lang="java"]
public static boolean isSdReadable()


boolean mExternalStorageAvailable = false;
try

String state = Environment.getExternalStorageState();

if (Environment.MEDIA_MOUNTED.equals(state))

// We can read and write the media
mExternalStorageAvailable = true;
Log.i("isSdReadable", "External storage card is readable.");

else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state))

// We can only read the media
Log.i("isSdReadable", "External storage card is readable.");
mExternalStorageAvailable = true;

else

// Something else is wrong. It may be one of many other
// states, but all we need to know is we can neither read nor
// write
mExternalStorageAvailable = false;

catch (Exception ex)



return mExternalStorageAvailable;


[/code]

Via : OpenAndroid.in
Tags : #Source_Code, #Tips__Tricks, #Tools
Orginal Post: How to Reading and Writing files to Internal Stoarage in Android