Incorrect ResultReceiver mapping - Jetifier [123651524]

Fixed

Bug

[AOSP] assigned

Status Update

No update yet.

Description

ga...@gmail.com

created issue #1

Jan 31, 2019 11:35AM

I am using a third party dependency (provided as an aar) which makes use of ResultReceiver from the Support-v4 library (android.support.v4.os.ResultReceiver). After migrating my app to AndroidX, Jetifier is changing the import in the library to "androidx.core.os.ResultReceiver" which is causing a ClassNotFoundException during runtime because ResultReceiver has not yet been moved to the new AndroidX package.

Exception:
Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.core.os.ResultReceiver"

ResultReceiver in AndroidX Core, it is still in package android/support/v4/os:

https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/core/src/main/java/android/support/v4/os

Sample project:

https://github.com/hibob224/jetifier-test

Android Studio:
Android Studio 3.3
Build #AI-182.5107.16.33.5199772, built on December 25, 2018
JRE: 1.8.0_152-release-1248-b01 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
macOS 10.13.6

Comments

ad...@google.com <ad...@google.com> #2Jan 31, 2019 11:57AM

Assigned to ki...@google.com.

When this happens to my headphones (with bluetooth) the sound works properly again after reconnecting the bluetooth.

If that's not the case and I change the microphone source, it would affect the sound quality as well.

Edit: Probably on the Mac program `Audio MIDI Setup` the sound source format is changed to a lower bitrate

ki...@google.com <ki...@google.com> #3Feb 11, 2019 09:59PM

Reassigned to pa...@google.com.

I've tried the Audio MIDI Setup program, but it doesn't show any changes for my headphones that are bluetooth connected with a USB dongle.

al...@google.com <al...@google.com> #4Feb 11, 2019 10:11PM

Hi, as the emulator continuously uses the microphone, Bluetooth headset quality will be degraded due to there being not enough bluetooth bandwidth to have both hi quality output and input. We can consider having a dynamic switch for this, but adding this will take some time.

ap...@google.com <ap...@google.com> #5Feb 13, 2019 02:04PM

I don't think that is what is happening. For me, when the emulator launches, it changes the macOS input device from the internal speaker to my headphones which switches the bt profile to a2dp. As a temporary workaround, I set hw.audioInput=no in my avd config.ini and it seemed to help.

hu...@google.com <hu...@google.com> #6Apr 1, 2019 04:39PM

+1 with "not enough bluetooth bandwidth" not being the issue. Connecting the headphones after the emulator has started up has no issues.

pa...@google.com <pa...@google.com> #7Oct 25, 2019 01:12PM

Marked as fixed.

Absolutely. A workaround for the issue is just reconnecting headphones while running AVD. Not about lack of bandwidth at all.

Issue 123651524