Attachments not working: java.lang.ClassCastException: android.text.SpannableStringBuilder cannot be cast to java.util.ArrayList

[Mmisiek]

Sending attachments broke recently:

I/ViewRootImpl@477a313[MainActivity](32228): ViewPostIme pointer 1
I/flutter (32228): /data/user/0/com.pestscope.pestscopemobile/cache117490004--13.pdf
W/NetworkRequest(32228): No App Check token for request.
2
I/System.out(32228): (HTTPLog)-Static: isSBSettingEnabled false
I/flutter (32228): Bytes loaded:7583132
W/Bundle  (32228): Key android.intent.extra.TEXT expected ArrayList<CharSequence> but value was a android.text.SpannableStringBuilder.  The default value <null> was returned.
W/Bundle  (32228): Attempt to cast generated internal exception:
W/Bundle  (32228): java.lang.ClassCastException: android.text.SpannableStringBuilder cannot be cast to java.util.ArrayList
W/Bundle  (32228):  at android.os.BaseBundle.getCharSequenceArrayList(BaseBundle.java:1343)
W/Bundle  (32228):  at android.os.Bundle.getCharSequenceArrayList(Bundle.java:1145)
W/Bundle  (32228):  at android.content.Intent.getCharSequenceArrayListExtra(Intent.java:9005)
W/Bundle  (32228):  at android.content.Intent.migrateExtraStreamToClipData(Intent.java:12041)
W/Bundle  (32228):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1721)
W/Bundle  (32228):  at android.app.Activity.startActivityForResult(Activity.java:5377)
W/Bundle  (32228):  at android.app.Activity.startActivityForResult(Activity.java:5335)
W/Bundle  (32228):  at com.dataxad.flutter_mailer.MethodCallHandlerImpl.onMethodCall(MethodCallHandlerImpl.java:73)
W/Bundle  (32228):  at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:233)
W/Bundle  (32228):  at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:84)
W/Bundle  (32228):  at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:865)
W/Bundle  (32228):  at android.os.MessageQueue.nativePollOnce(Native Method)
W/Bundle  (32228):  at android.os.MessageQueue.next(MessageQueue.java:335)
W/Bundle  (32228):  at android.os.Looper.loop(Looper.java:206)
W/Bundle  (32228):  at android.app.ActivityThread.main(ActivityThread.java:8595)
W/Bundle  (32228):  at java.lang.reflect.Method.invoke(Native Method)
W/Bundle  (32228):  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
W/Bundle  (32228):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
I/ViewRootImpl@477a313[MainActivity](32228): MSG_WINDOW_FOCUS_CHANGED 0 1

traced error to Android 4 bug: https://stackoverflow.com/questions/15776416/java-lang-classcastexception-android-text-spannablestringbuilder-cannot-be-cast

[taljacobson]

can you provide more context? how did does it break?

that error message is unfortunately the same as with #13 / cordova-plugin-email although annoying has been there since forever and does not crash the app.

[Mmisiek]

So basically, when calling FlutterMailer with link to attachment it fails. The email body will be empty and no attachment after I push though.

  final MailOptions mailOptions = MailOptions(
    body: body,
    subject: subject,
    recipients: [scoutReport.sendTo],
    isHTML: true,
    bccRecipients: [],
    ccRecipients: [],
    attachments: [
      pdfFile.path,
    ],
  );
  // open emailer
  FlutterMailer.send(mailOptions).then((_) {});

I narrowed it down to the first setting of intent:

I/flutter (17760): Using local cached file:/data/user/0/com.pestscope.pestscopemobile/app_flutter/Reports/-94741-1-11.pdf I/flutter (17760): /data/user/0/com.pestscope.pestscopemobile/cache-94741-1-11.pdf W/Bundle (17760): Key android.intent.extra.TEXT expected ArrayList but value was a android.text.SpannableStringBuilder. The default value was returned. W/Bundle (17760): Attempt to cast generated internal exception: W/Bundle (17760): java.lang.ClassCastException: android.text.SpannableStringBuilder cannot be cast to java.util.ArrayList W/Bundle (17760): at android.os.BaseBundle.getCharSequenceArrayList(BaseBundle.java:1343) W/Bundle (17760): at android.os.Bundle.getCharSequenceArrayList(Bundle.java:1145) W/Bundle (17760): at android.content.Intent.getCharSequenceArrayListExtra(Intent.java:9005) W/Bundle (17760): at android.content.Intent.migrateExtraStreamToClipData(Intent.java:12041) W/Bundle (17760): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1721) W/Bundle (17760): at android.app.Activity.startActivityForResult(Activity.java:5377) W/Bundle (17760): at android.app.Activity.startActivityForResult(Activity.java:5335) W/Bundle (17760): at com.dataxad.flutter_mailer.MethodCallHandlerImpl.onMethodCall(MethodCallHandlerImpl.java:73) W/Bundle (17760): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:233) W/Bundle (17760): at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:84) W/Bundle (17760): at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:865) W/Bundle (17760): at android.os.MessageQueue.nativePollOnce(Native Method) W/Bundle (17760): at android.os.MessageQueue.next(MessageQueue.java:335) W/Bundle (17760): at android.os.Looper.loop(Looper.java:206) W/Bundle (17760): at android.app.ActivityThread.main(ActivityThread.java:8595) W/Bundle (17760): at java.lang.reflect.Method.invoke(Native Method) W/Bundle (17760): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602) W/Bundle (17760): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

[Mmisiek]

So it does not crash app but makes FlutterMailer unusable to send attachments. In the links I provided there are some workarounds proposed.

[BellRampion]

I am seeing this issue and the workarounds are Java-specific. The issue is appearing on the newest versions of Android as well.

[bhavin-qfonapp]

any solution??