Bom dia. Sou iniciante na programação de apps android e estou uma incógnita sobre como habilitar o filepicker para selecionar múltiplos arquivos. Meu código funciona, porém só seleciona um arquivo por vez.

Segue o código:

BaseActivity.java

@Override protected void onActivityResult(int reqCode, int resultCode, Intent data) { super.onActivityResult(reqCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { if (reqCode == WebEngine.KEY_FILE_PICKER) { String picturePath = FilePicker.getPickedFilePath(this, data); if (webEngine != null) { webEngine.uploadFile(data, picturePath); } } } }

FilePicker.java

package com.teste.final.utility;

import android.content.Context; import android.content.Intent; import android.content.pm.ResolveInfo; import android.database.Cursor; import android.net.Uri; import android.os.Environment; import android.os.Parcelable; import android.provider.MediaStore;

import java.io.File; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Locale;

/** * Created by Ashiq on 6/1/16. */

public class FilePicker {

private static String pictureTempPath = ""; private static final String CHOOSER_MSG = "Escolha uma opção"; private static final String IMAGE_PREFIX = "IMG_"; private static final String IMAGE_EXTENSION = ".jpg";  /**  * Start picker intent  *  * @param context  * @return  */ public static Intent getPickFileIntent(Context context) {     Intent chooserIntent = null;      List<Intent> intentList = new ArrayList<Intent>();     addIntentsToList(context, intentList, getGalleryIntent());     addIntentsToList(context, intentList, getCameraIntent(context));     addIntentsToList(context, intentList, getFileIntent());      if (intentList.size() > 0) {         chooserIntent = Intent.createChooser(intentList.remove(intentList.size() - 1), CHOOSER_MSG);         chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentList.toArray(new Parcelable[]{}));     }      return chooserIntent; }  /**  * Start camera picker intent  *  * @param context  * @return  */ public static Intent getCameraPickerIntent(Context context) {     Intent chooserIntent = null;      List<Intent> intentList = new ArrayList<Intent>();     addIntentsToList(context, intentList, getCameraIntent(context));      if (intentList.size() > 0) {         chooserIntent = Intent.createChooser(intentList.remove(intentList.size() - 1), CHOOSER_MSG);         chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentList.toArray(new Parcelable[]{}));     }      return chooserIntent; }  /**  * Start gallery picker intent  *  * @param context  * @return  */ public static Intent getGalleryPickerIntent(Context context) {     Intent chooserIntent = null;      List<Intent> intentList = new ArrayList<Intent>();     addIntentsToList(context, intentList, getGalleryIntent());      if (intentList.size() > 0) {         chooserIntent = Intent.createChooser(intentList.remove(intentList.size() - 1), CHOOSER_MSG);         chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentList.toArray(new Parcelable[]{}));     }      return chooserIntent; }  /**  * Get captured image path  *  * @param context  * @param data  * @return  */ public static String getPickedFilePath(Context context, Intent data) {     String filePath = null;      boolean isCameraIntent = (data == null || data.getData() == null);      if (isCameraIntent) {         filePath = pictureTempPath;     } else {         filePath = getImagePath(context, data.getData());         /*if (filePath == null) {             filePath = data.getData().getPath();         }*/     }      return filePath; }  private static String getImagePath(Context context, Uri imageUri) {     String path = null;     try {         String[] filePathColumn = {MediaStore.Images.Media.DATA};         // Get DB Cursor to get Image link         Cursor cursor = context.getContentResolver().query(imageUri, filePathColumn, null, null, null);         if (cursor != null && cursor.moveToFirst()) {             int columnIndex = cursor.getColumnIndex(MediaStore.Images.Media.DATA);             // Get image path             path = cursor.getString(columnIndex);             cursor.close();         }     } catch (Exception e) {         e.printStackTrace();     }     return path; }  /**  * Creates a gallery intent  *  * @return  */ private static Intent getGalleryIntent() {     // Define gallery intent     return new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); }  private static Intent getFileIntent() {     // Define file intent     Intent chooseFile = new Intent(Intent.ACTION_GET_CONTENT);     chooseFile.setType("*/*");     return chooseFile; }   /**  * Creates a camera intent  *  * @return  */ private static Intent getCameraIntent(Context ctx) {     Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);     // Ensure that there's a camera activity to handle the intent     if (cameraIntent.resolveActivity(ctx.getPackageManager()) != null) {          cameraIntent.putExtra("return-data", true);          File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);         String timeStamp = new SimpleDateFormat(DateUtils.DateTimeFormat.YYMMDD_HHMMSS.toString(), Locale.US).format(new Date());         String imageFileName = IMAGE_PREFIX + timeStamp;         File photoFile = new File(path, imageFileName + IMAGE_EXTENSION);          pictureTempPath = photoFile.getAbsolutePath();          cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));     }      return cameraIntent; }  /**  * Make a list of choices to display to user  *  * @param context  * @param list  * @param intent  * @return  */ private static void addIntentsToList(Context context, List<Intent> list, Intent intent) {      List<ResolveInfo> resInfo = context.getPackageManager().queryIntentActivities(intent, 0);     for (ResolveInfo resolveInfo : resInfo) {         String packageName = resolveInfo.activityInfo.packageName;         Intent targetedIntent = new Intent(intent);         targetedIntent.setPackage(packageName);         list.add(targetedIntent);     } } 

}