Manikandan Android Developer Manikandan Android Developer - 2 months ago 17
Android Question

How to get file name from file path in android

I want to get file name from sdcard file path.
e.g. :

/storage/sdcard0/DCIM/Camera/1414240995236.jpg I want get 1414240995236.jpg

I have written the code to fetch the same but it is not working. Please help.

Below is my code:

@Override
protected void onActivityResult( int requestCode, int resultCode, Intent data)
{
if ( requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {

if ( resultCode == RESULT_OK) {

/*********** Load Captured Image And Data Start ****************/

String imageId = convertImageUriToFile( imageUri,CameraActivity);


// Create and excecute AsyncTask to load capture image

new LoadImagesFromSDCard().execute(""+imageId);

/*********** Load Captured Image And Data End ****************/


} else if ( resultCode == RESULT_CANCELED) {

Toast.makeText(this, " Picture was not taken ", Toast.LENGTH_SHORT).show();
} else {

Toast.makeText(this, " Picture was not taken ", Toast.LENGTH_SHORT).show();
}
}
}


/************ Convert Image Uri path to physical path **************/

public static String convertImageUriToFile ( Uri imageUri, Activity activity ) {

Cursor cursor = null;
int imageID = 0;

try {

/*********** Which columns values want to get *******/
String [] proj={
MediaStore.Images.Media.DATA,
MediaStore.Images.Media._ID,
MediaStore.Images.Thumbnails._ID,
MediaStore.Images.ImageColumns.ORIENTATION
};

cursor = activity.managedQuery(

imageUri, // Get data for specific image URI
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null // Order-by clause (ascending by name)

);

// Get Query Data

int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID);
int columnIndexThumb = cursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID);
int file_ColumnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);

//int orientation_ColumnIndex = cursor.
// getColumnIndexOrThrow(MediaStore.Images.ImageColumns.ORIENTATION);

int size = cursor.getCount();

/******* If size is 0, there are no images on the SD Card. *****/

if (size == 0) {


imageDetails.setText("No Image");
}
else
{

int thumbID = 0;
if (cursor.moveToFirst()) {

/**************** Captured image details ************/

/***** Used to show image on view in LoadImagesFromSDCard class ******/
imageID = cursor.getInt(columnIndex);

thumbID = cursor.getInt(columnIndexThumb);

String Path = cursor.getString(file_ColumnIndex);

//String orientation = cursor.getString(orientation_ColumnIndex);

String CapturedImageDetails = " CapturedImageDetails : \n\n"
+" ImageID :"+imageID+"\n"
+" ThumbID :"+thumbID+"\n"
+" Path :"+Path+"\n";
full_path_name=Path;



//this is my path
//Path :/storage/sdcard0/DCIM/Camera/1414240995236.jpg i want get 1414240995236.jpg








// Show Captured Image detail on activity
imageDetails.setText(Path);

}
}
} finally {
if (cursor != null) {
cursor.close();
}
}

// Return Captured Image ImageID ( By this ImageID Image will load from sdcard )

return ""+imageID;
}


/**
* Async task for loading the images from the SD card.
*
* @author Android Example
*
*/

// Class with extends AsyncTask class

public class LoadImagesFromSDCard extends AsyncTask<String, Void, Void> {

private ProgressDialog Dialog = new ProgressDialog(CameraPhotoCapture.this);

Bitmap mBitmap;

protected void onPreExecute() {
/****** NOTE: You can call UI Element here. *****/

// Progress Dialog
Dialog.setMessage(" Loading image from Sdcard..");
Dialog.show();
}


// Call after onPreExecute method
protected Void doInBackground(String... urls) {

Bitmap bitmap = null;
Bitmap newBitmap = null;
Uri uri = null;


try {

/** Uri.withAppendedPath Method Description
* Parameters
* baseUri Uri to append path segment to
* pathSegment encoded path segment to append
* Returns
* a new Uri based on baseUri with the given segment appended to the path
*/

uri = Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "" + urls[0]);

/************** Decode an input stream into a bitmap. *********/
bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(uri));

if (bitmap != null) {

/********* Creates a new bitmap, scaled from an existing bitmap. ***********/

newBitmap = Bitmap.createScaledBitmap(bitmap, 170, 170, true);

bitmap.recycle();

if (newBitmap != null) {

mBitmap = newBitmap;
}
}
} catch (IOException e) {
// Error fetching image, try to recover

/********* Cancel execution of this task. **********/
cancel(true);
}

return null;
}


protected void onPostExecute(Void unused) {

// NOTE: You can call UI Element here.

// Close progress dialog
Dialog.dismiss();

if(mBitmap != null)
{
// Set Image to ImageView

showImg.setImageBitmap(mBitmap);
}

}

}

Answer

i think you can use substring methode to get name of file from the path string.

    String path=":/storage/sdcard0/DCIM/Camera/1414240995236.jpg";//it contain your path of image..im using a temp string..
    String filename=path.substring(path.lastIndexOf("/")+1);
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