Add extraction dialog

app/src/main/java/com/starapps/tools/tnefextractor/TNEFActivity.java

@@ -4,7 +4,9 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.documentfile.provider.DocumentFile;
 
 import android.app.Activity;
+import android.app.AlertDialog;
 import android.content.ContentResolver;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Build;
@@ -21,9 +23,12 @@ import net.freeutils.tnef.TNEFUtils;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.ArrayList;
 
 public class TNEFActivity extends AppCompatActivity {
 	private static final int REQUEST_CODE_BROWSE_FOLDER = 1;
+	private ArrayList<CharSequence> attachmentNames = new ArrayList<>();
+	private ArrayList<Uri> attachmentFiles = new ArrayList<>();
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
@@ -72,18 +77,37 @@ public class TNEFActivity extends AppCompatActivity {
 				message = new Message(tnefInputStream);
 
 				extractAttachmentsTo(message, folderFile);
-				Toast.makeText(getApplicationContext(), getString(R.string.extraction_succeeded), Toast.LENGTH_LONG).show();
+
+				AlertDialog.Builder builder = new AlertDialog.Builder(this);
+				builder.setTitle(R.string.extraction_dialog_title)
+						.setCancelable(true)
+						.setOnCancelListener(new DialogInterface.OnCancelListener() {
+							public void onCancel(DialogInterface dialogInterface) {
+								finish();
+							}
+						})
+						.setItems(attachmentNames.toArray(new CharSequence[0]), new DialogInterface.OnClickListener() {
+							public void onClick(DialogInterface dialog, int which) {
+								Intent intent = new Intent(Intent.ACTION_VIEW);
+								intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+								intent.setDataAndType(attachmentFiles.get(which), getMimeType(attachmentNames.get(which).toString()));
+
+								startActivity(intent);
+								finish();
+							}
+						}).show();
 			} catch(IOException e) {
 				Toast.makeText(getApplicationContext(), getString(R.string.extraction_failed_all), Toast.LENGTH_LONG).show();
+				finish();
 			} finally {
 				try {
 					TNEFUtils.closeAll(message, tnefInputStream, inputStream);
 				} catch(IOException ignored) {
 				}
 			}
+		} else {
+			finish();
 		}
-
-		finish();
 	}
 
 	private void extractAttachmentsTo(Message message, DocumentFile folder) {
@@ -103,6 +127,8 @@ public class TNEFActivity extends AppCompatActivity {
 
 						if(file != null) {
 							attachment.writeTo(contentResolver.openOutputStream(file.getUri()));
+							attachmentNames.add(filename);
+							attachmentFiles.add(file.getUri());
 						}
 					} catch(IOException e) {
 						Toast.makeText(getApplicationContext(), getString(R.string.extraction_failed_single, filename), Toast.LENGTH_LONG).show();

app/src/main/res/values/strings.xml

 <resources>
     <string name="app_name">TNEF Extractor</string>
+    <string name="extraction_dialog_title">Extracted Attachments</string>
     <string name="extraction_failed_all">Failed to extract file.</string>
     <string name="extraction_failed_single">Failed to extract attachment %1$s.</string>
-    <string name="extraction_succeeded">File extracted successfully.</string>
 </resources>