2.1.5

remove unused synchronized

2.1.0

merge from develop

2.0.1

remove unnecessary synchronization

2.0

add Introduce

1.8.5

add Introduce

1.8.0

update readme

1.7.2_dev

add null array judge

1.6.8

put impl to map before onCreate was invoked,avoid many times called

1.6.7

Update README.md

1.6.6

源码添加