java - studio - Obtener ruta de archivo y nombre de archivo de la imagen de la galería seleccionada en Android
obtener el nombre de una imagen en android (9)
Estoy creando una aplicación que carga una imagen seleccionada de la galería y la carga a un servicio web. El servicio web requiere el nombre de archivo de la imagen seleccionada más una codificación base64 del contenido del archivo. He logrado lograr esto con una ruta de archivo codificada. Sin embargo, estoy luchando para obtener la ruta de archivo real de la imagen. He leído en la web y tengo este código, pero no funciona para mí:
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData();
String[] projection = {MediaStore.Images.Media.DATA};
try {
Cursor cursor = getContentResolver().query(selectedImageUri, projection, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(projection[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Log.d("Picture Path", picturePath);
}
catch(Exception e) {
Log.e("Path Error", e.toString());
}
}
}
Me sale este error:
java.lang.NullPointerException
EDITAR
Olvidé mencionar que estoy usando Kitkat. Parece que mi problema está relacionado con KitKat. Encontré esto (ver más abajo) que me ayudó a hacer que mi aplicación funcionara:
La Galería de Android en KitKat devuelve diferentes Uri para Intención.ACTION_GET_CONTENT
Agrega esta clase en tu proyecto
ImageFilePath.java
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
//import android.provider.<span id="IL_AD11" class="IL_AD">MediaStore</span>;
@SuppressLint("NewApi")
@TargetApi(Build.VERSION_CODES.KITKAT)
public class ImageFilePath {
/**
* Method for return file path of Gallery image
*
* @param context
* @param uri
* @return path of the selected image file from gallery
*/
static String nopath = "Select Video Only";
@TargetApi(Build.VERSION_CODES.KITKAT)
@SuppressLint("NewApi")
public static String getPath(final Context context, final Uri uri) {
// check here to KITKAT or new version
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/"
+ split[1];
}
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"),
Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[] { split[1] };
return getDataColumn(context, contentUri, selection,
selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return nopath;
}
/**
* Get the value of the data column for this Uri. This is <span id="IL_AD2"
* class="IL_AD">useful</span> for MediaStore Uris, and other file-based
* ContentProviders.
*
* @param context
* The context.
* @param uri
* The Uri to query.
* @param selection
* (Optional) Filter used in the query.
* @param selectionArgs
* (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri,
String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = { column };
try {
cursor = context.getContentResolver().query(uri, projection,
selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return nopath;
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri
.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri
.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri
.getAuthority());
}
/**
* @param uri
* The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri
.getAuthority());
}
}
En tu onActivityResult
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
Uri uri = data.getData();
realPath = ImageFilePath.getPath(SignupActivity.this, data.getData());
// realPath = RealPathUtil.getRealPathFromURI_API19(this, data.getData());
Log.i(TAG, "onActivityResult: file path : " + realPath);
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
// Log.d(TAG, String.valueOf(bitmap));
ImageView imageView = (ImageView) findViewById(R.id.img_profile);
imageView.setImageBitmap(bitmap);
imageView.setVisibility(View.VISIBLE);
} catch (IOException e) {
e.printStackTrace();
}
} else {
Toast.makeText(this, "Something Went Wrong", Toast.LENGTH_SHORT).show();
}
}
Espero que esto te ayude
if (Build.VERSION.SDK_INT <19){
Intent intent = new Intent();
intent.setType("image/jpeg");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,
getResources().getString(R.string.select_picture)),GALLERY_INTENT_CALLED);
}else{
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/jpeg");
startActivityForResult(intent, GALLERY_KITKAT_INTENT_CALLED);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (resultCode != Activity.RESULT_OK) return;
if (null == data) return;
Uri originalUri = null;
if (requestCode == GALLERY_INTENT_CALLED) {
originalUri = data.getData();
}
else if (requestCode == GALLERY_KITKAT_INTENT_CALLED) {
originalUri = data.getData();
final int takeFlags = data.getFlags()
& (Intent.FLAG_GRANT_READ_URI_PERMISSION
| Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
// Check for the freshest data.
getContentResolver().takePersistableUriPermission(originalUri, takeFlags);
}
loadSomeStreamAsynkTask(originalUri);
}
Intente esto para obtener datos, así como la ruta del archivo e insertarlos en la carpeta.
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
try {
if (resultCode == RESULT_OK)
{
nav = data.getData();
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(nav, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String path= cursor.getString(column_index);
Toast.makeText(getApplicationContext(), path, 500).show();
mBitmap = android.provider.MediaStore.Images.Media.getBitmap(getContentResolver(), nav);
insert(mBitmap);
if (mBitmap != null) {
mBitmap.recycle();
mBitmap = null;
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void insert(Bitmap finalBitmap) {
File myDir=new File("/sdcard/saved_images");
myDir.mkdirs();
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "Image-"+ n +".jpg";
File file = new File (myDir, fname);
if (file.exists ()) file.delete ();
try {
FileOutputStream out = new FileOutputStream(file);
finalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.flush();
out.close();
File dstFile = new File(file.getParent(), "." + file.getName());
file.renameTo(dstFile);
} catch (Exception e) {
e.printStackTrace();
}
}
Prueba esto,
file = new File(getPath(outputFileUri));
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
@SuppressWarnings("deprecation")
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
Prueba esto:
Uri selectedImageURI = data.getData();
imageFile = new File(getRealPathFromURI(selectedImageURI));
Y
private String getRealPathFromURI(Uri contentURI) {
Cursor cursor = getContentResolver().query(contentURI, null, null, null, null);
if (cursor == null) { // Source is Dropbox or other similar local file path
return contentURI.getPath();
} else {
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
return cursor.getString(idx);
}
}
Si eres como yo y no tienes un archivo local listo, por ejemplo, quieres darle al usuario la oportunidad de tomar una foto y luego cargarla. Así es como lo hacemos. Soy un novato en java pero tengo mucha experiencia en codificación. me ayudó a asignarme, así que ahora es mi momento de hacer algo a cambio.
En la actividad de clase tienes que declarar estos dos artículos. Suponiendo que tiene una clase de carga de trabajo y un script php.
NOTA No estoy tomando ninguna consideración acerca de todas las diferentes API que hay. Estoy usando el compilador 1.7 de Java y un rango de API de 10 a 18.
public class Yourproject extends Activity {
File imageFile;
File imageFileName;
//This part is needed for decoding the path adres.
private String getRealPathFromURI(Uri contentURI) {
String result;
Cursor cursor = getContentResolver().query(contentURI, null, null, null, null);
if (cursor == null) { // Source is Dropbox or other similar local file path
result = contentURI.getPath();
} else {
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME);
result = cursor.getString(idx);
cursor.close();
}
return result;
}
//This is needed for the path name, now you might just want to use one decoding script depending on //your class in total.
//In my case this was the way to go.
//To use one single addres use this line ImageColumns.DATA in the int idx declaration.
private String getRealPathFromNAME(Uri contentNAME) {
String result;
Cursor cursor = getContentResolver().query(contentNAME, null, null, null, null);
if (cursor == null) { // Source is Dropbox or other similar local file path
result = contentNAME.getPath();
} else {
cursor.moveToFirst();
int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DISPLAY_NAME);
result = cursor.getString(idx);
cursor.close();
}
return result;
}
//Then under protected void onCreate(Bundle savedInstanceState) you place this code to get
//the image and process it.
@Override
protected void onCreate(Bundle savedInstanceState) {
//declare the ImageView
final ImageView inputPicture = (ImageView) findViewById(R.id.imageView2);
inputPicture.setImageURI((Uri) getIntent().getExtras().get("picture"));
//here where recieve the image from last page "Putextra" method
try {
//here we will get the data and proces it trough to get the real
//address for uploading.
//This is send from a other activity with a Intent.EXTRA_STREAM
//The code looks like this:
/*********"Putextra"*********/
//final ImageView iv = (ImageView) findViewById(R.id.imageView1);
//final Uri thumb = (Uri) getIntent().getExtras().get(Intent.EXTRA_STREAM);
//iv.setImageURI(thumb);
//Sending it to the next activity
//it.putExtra("picture", thumb);
/*********"Putextra"*********/
Uri fileUri = (Uri) getIntent().getExtras().get("picture");
//get
//Uri fileName = (Uri) getIntent().getExtras().get("picture");
//get
imageFile = new File(getRealPathFromURI(fileUri));
//send
imageFileName = new File(getRealPathFromNAME(fileUri));
//send
//i got a exeption Uri fileName, use fileUri twice..
} catch (Exception e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
//here we will declare the name for furter processing.
final File uploadFilePath = imageFile;
final File uploadFileName = imageFileName;
}
Y el resto lo dejaré a usted, si llegó hasta aquí, estoy bastante seguro de que terminará.
Un poco tarde para la fiesta, pero aquí está mi código, espero que esto ayude.
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData( );
String picturePath = getPath( getActivity( ).getApplicationContext( ), selectedImageUri );
Log.d("Picture Path", picturePath);
}
}
public static String getPath( Context context, Uri uri ) {
String result = null;
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = context.getContentResolver( ).query( uri, proj, null, null, null );
if(cursor != null){
if ( cursor.moveToFirst( ) ) {
int column_index = cursor.getColumnIndexOrThrow( proj[0] );
result = cursor.getString( column_index );
}
cursor.close( );
}
if(result == null) {
result = "Not found";
}
return result;
}
Utilice el código de abajo,
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData();
String s = getRealPathFromURI(selectedImageUri);
editText1.setText(s);
}
}
y debajo está tu función getRealPathFromURI,
public String getRealPathFromURI(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
@SuppressWarnings("deprecation")
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
public class RealFilePath {
/**
* Get a file path from a Uri. This will get the the path for Storage Access
* Framework Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query
*/
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)
);
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
}
else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
}
else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[]{
split[1]
};
return getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
}
finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
}