アプリでメールを送信するために gmailsender を使用しています。デフォルト/組み込みアプリを使用せずにJavaMail APIを使用してAndroidでメールを送信する以下のリンクをたどりました
ただし、proguard を使用して APK をビルドすると、gmail 送信者が機能しないことに気付きました (その APK をインストールすると)。エラーはスローされませんが、メールは送信されません。プロガードを無効にしてから APK を生成すると、その APK を使用して正常に動作します。
ここで何が間違っているのか、誰でも提案できますか。
:::EDIT:::-APK の生成中に、コンソールからいくつかのエラー メッセージ (要約) 行を追加しました。ただし、PROGUARD 構成ファイルでそれらを無視することにより、これらの警告を取り除くことができました
[2013-07-09 10:00:38 - ] Proguard returned with error code 1. See console
[2013-07-09 10:00:38 - ] Warning: org.apache.harmony.awt.datatransfer.DataProxy: can't find superclass or interface java.awt.datatransfer.Transferable
[2013-07-09 10:00:38 - ] Warning: org.apache.harmony.awt.datatransfer.NativeClipboard: can't find superclass or interface java.awt.datatransfer.Clipboard
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator: can't find referenced class javax.security.sasl.Sasl
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator: can't find referenced class javax.security.sasl.Sasl
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator: can't find referenced class javax.security.sasl.SaslClient
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator: can't find
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator$1: can't find referenced class javax.security.auth.callback.NameCallback
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator$1: can't find referenced class javax.security.sasl.RealmCallback
[2013-07-09 10:00:38 - ] Warning: com.sun.mail.imap.protocol.IMAPSaslAuthenticator$1: can't find referenced class javax.security.sasl.RealmChoiceCallback
[2013-07-09 10:00:38 - ] Warning: javax.activation.CommandInfo: can't find referenced class java.beans.Beans
[2013-07-09 10:00:38 - ] Warning: javax.activation.CommandInfo: can't find referenced class java.beans.Beans
[2013-07-09 10:00:38 - ] Warning: org.apache.harmony.awt.ContextStorage: can't find referenced class java.awt.Toolkit
[2013-07-09 10:00:38 - ] Warning: org.apache.harmony.awt.ContextStorage: can't find referenced class java.awt.GraphicsEnvironment
[2013-07-09 10:00:38 - ] Warning: org.apache.harmony.awt.ContextStorage: can't find referenced class java.awt.Toolkit
[2013-07-09 10:00:38 - ] Warning: org.apache.harmony.awt.ContextStorage: can't find referenced class java.awt.Toolkit
[2013-07-09 10:00:38 - ] You should check if you need to specify additional program jars.
[2013-07-09 10:00:38 - ] Warning: there were 247 unresolved references to classes or interfaces.
[2013-07-09 10:00:38 - ] You may need to specify additional library jars (using '-libraryjars').
[2013-07-09 10:00:38 - ] java.io.IOException: Please correct the above warnings first.
[2013-07-09 10:00:38 - ] at proguard.Initializer.execute(Initializer.java:321)
[2013-07-09 10:00:38 - ] at proguard.ProGuard.initialize(ProGuard.java:211)
[2013-07-09 10:00:38 - ] at proguard.ProGuard.execute(ProGuard.java:86)
[2013-07-09 10:00:38 - ] at proguard.ProGuard.main(ProGuard.java:49