Fix bugs in Mms Appwidget
Fix bugs in Mms Appwidget

1. Need to use PendingIntent instead to set the click listener for "View
more conversations"
2. No need to lock sWidgetLock in getConversationCount(), since it was already
locked outside.

Change-Id: Ifacbbcb720c8b7126f93fbbc2cbe862e0b6558a6
Signed-off-by: Roger Chen <978f296cd7dd9dd5e3d0b6fa935716127e021333@gmail.com>

bmaupin/android-sms-plus