This importer works with both the system file manager and my third party one

It also works with the Contacts app, which is a mistake... MIME types are annoying

Author: 19lmyers

app/src/main/java/com/team980/thunderscout/ximport/CSVImportTask.java

@@ -25,10 +25,13 @@
 package com.team980.thunderscout.ximport;
 
 import android.app.Activity;
+import android.content.ContentResolver;
 import android.content.Intent;
+import android.content.UriMatcher;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteException;
+import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Environment;
 import android.provider.Settings;
@@ -54,6 +57,7 @@
 import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.IOException;
+import java.io.InputStreamReader;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
@@ -63,19 +67,19 @@ public class CSVImportTask extends AsyncTask<Void, ScoutData, Void> {
 
     private Activity activity;
 
-    private File csvFile;
+    private Uri fileUri;
 
-    public CSVImportTask(Activity activity, File file) {
+    public CSVImportTask(Activity activity, Uri uri) {
         this.activity = activity;
-        csvFile = file;
+        fileUri = uri;
     }
 
     @Override
     public Void doInBackground(Void... params) {
 
         CSVReader reader;
         try {
-            reader = new CSVReader(new FileReader(csvFile));
+            reader = new CSVReader(new InputStreamReader(activity.getContentResolver().openInputStream(fileUri)));
         } catch (FileNotFoundException e) {
             FirebaseCrash.report(e);
             return null;
@@ -107,7 +111,7 @@ public Void doInBackground(Void... params) {
     protected void onProgressUpdate(ScoutData[] values) {
         //Runs on UI thread when publishProgress() is called
 
-        FirebaseCrash.logcat(Log.INFO, this.getClass().getName(), "Posting ScoutData from CSV " + csvFile.getName() + " to database");
+        FirebaseCrash.logcat(Log.INFO, this.getClass().getName(), "Posting ScoutData from CSV " + fileUri.getLastPathSegment() + " to database");
 
         ScoutDataWriteTask writeTask = new ScoutDataWriteTask(values[0], activity);
         writeTask.execute();

app/src/main/java/com/team980/thunderscout/ximport/ImportActivity.java

@@ -25,6 +25,7 @@
 package com.team980.thunderscout.ximport;
 
 import android.Manifest;
+import android.content.ContentResolver;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.net.Uri;
@@ -55,7 +56,7 @@ public class ImportActivity extends AppCompatActivity implements View.OnClickLis
 
     private Button buttonImport;
 
-    private File file;
+    private Uri fileUri;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -76,13 +77,13 @@ protected void onCreate(Bundle savedInstanceState) {
     public void onClick(View v) {
         if (v.getId() == R.id.buttonSelectFile) {
             Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
-            intent.setType("file/csv");
-            Intent i = Intent.createChooser(intent, "File");
+            intent.setType("*/*");
+            Intent i = Intent.createChooser(intent, "Open .csv");
             startActivityForResult(i, 2);
         } else if (v.getId() == R.id.buttonImport) {
             if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE)
                     == PackageManager.PERMISSION_GRANTED) {
-                CSVImportTask task = new CSVImportTask(this, file);
+                CSVImportTask task = new CSVImportTask(this, fileUri);
                 task.execute();
             } else {
                 //Request permission
@@ -101,7 +102,7 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
             if(resultCode == RESULT_OK){
                 fileInfo.setText(data.getData().getPath());
 
-                file = new File(data.getData().getPath());
+                fileUri = data.getData();
 
                 buttonImport.setEnabled(true);
             }
@@ -113,7 +114,7 @@ public void onRequestPermissionsResult(int requestCode, @NonNull String[] permis
         if (requestCode == 1) {
             // If request is cancelled, the result arrays are empty.
             if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                CSVImportTask task = new CSVImportTask(this, file);
+                CSVImportTask task = new CSVImportTask(this, fileUri);
                 task.execute();
             } else {
                 //Why would you ever deny the permission?