fix: avoid truncated prints (#275)

* fix change print enconding to base64 #104

Signed-off-by: Jan Guegel <jan@guegel.eu>

* Update CHANGELOG.md

* Update CHANGELOG.md

Co-authored-by: Naveen Singh <36371707+naveensingh@users.noreply.github.com>

* use ensureBackgroundThread to avoid ANR on large files

Signed-off-by: Jan Guegel <jan@guegel.eu>

---------

Signed-off-by: Jan Guegel <jan@guegel.eu>
Co-authored-by: Jan Guegel <jan@guegel.eu>
Co-authored-by: Naveen Singh <36371707+naveensingh@users.noreply.github.com>

Author: 3 people

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed folders showing up incorrectly as files in copy/move dialog ([#267])
 - Fixed error when saving files with unsupported characters ([#250])
 - Fixed missing permission prompt on initial "Save as" launch ([#85])
+- Fixed printing text files containing a "#" ([#104])
 
 ## [1.2.3] - 2025-09-15
 ### Fixed
@@ -78,6 +79,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#267]: https://github.com/FossifyOrg/File-Manager/issues/267
 [#250]: https://github.com/FossifyOrg/File-Manager/issues/250
 [#85]: https://github.com/FossifyOrg/File-Manager/issues/85
+[#104]: https://github.com/FossifyOrg/File-Manager/issues/104
 
 [Unreleased]: https://github.com/FossifyOrg/File-Manager/compare/1.2.3...HEAD
 [1.2.3]: https://github.com/FossifyOrg/File-Manager/compare/1.2.2...1.2.3

app/src/main/kotlin/org/fossify/filemanager/activities/ReadTextActivity.kt

@@ -7,6 +7,7 @@ import android.net.Uri
 import android.os.Bundle
 import android.print.PrintAttributes
 import android.print.PrintManager
+import android.util.Base64
 import android.view.inputmethod.EditorInfo
 import android.webkit.WebResourceRequest
 import android.webkit.WebView
@@ -229,7 +230,17 @@ class ReadTextActivity : SimpleActivity() {
                 }
             }
 
-            webView.loadData(binding.readTextView.text.toString(), "text/plain", "UTF-8")
+            val text = binding.readTextView.text.toString()
+            ensureBackgroundThread {
+                try {
+                    val base64 = Base64.encodeToString(text.toByteArray(), Base64.DEFAULT)
+                    runOnUiThread {
+                        webView.loadData(base64, "text/plain", "base64")
+                    }
+                } catch (e: Exception) {
+                    showErrorToast(e)
+                }
+            }
         } catch (e: Exception) {
             showErrorToast(e)
         }