Activity memory leak caused by anonymous threads

[cuixiaoyiyi]

An anonymous inner class will hold a reference to the this pointer of the outer class and will not be released until the thread ends.

They will hold the Activity and prevent its timely release. Please check the links below.

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/FriendInfoActivity.java#L276

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceAudioActivity.java#L1110

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceAudioActivity.java#L646

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceAudioActivity.java#L1290

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceAudioActivity.java#L1438

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceAudioActivity.java#L1204

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceMessageListActivity.java#L1095

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceMessageListActivity.java#L402

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/ConferenceMessageListActivity.java#L949

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MaintenanceActivity.java#L785

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MessageListActivity.java#L465

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/CallingActivity.java#L1966

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/CallingActivity.java#L1652

https://github.com/zoff99/ToxAndroidRefImpl/blob/zoff99/dev003/android-refimpl-app/app/src/main/java/com/zoffcc/applications/trifa/MainActivity.java#L1941

[zoff99]

@cuixiaoyiyi can you make a PR with proposed fixes?