| 99e222d5b14544bbb89d402eb704829c642f8abf |
26-Oct-2017 |
Dake Gu <dake@google.com> |
leanback: fix duplicated fragment in BrowseFragment.setAdapter()
When calling BrowseFragment.setAdapter() with a list of rows,
a fragment will be created, then later initial row selection
will create another copy of fragment. This also breaks slide-in
entrance transition that was launched on first fragment and
immediately was wiped off by second fragment replacement.
The fix removes replaceMainFragment() call from setAdapter().
Also some minor fix to allow setAdapter(null).
Currently sample app call setAdapter() with empty list first.
So it does not show the problem of duplicated fragment.
This fix enables sample code to call setAdapter() with loaded data
which is very important in restoring view state. Gridview needs
to get list of data in first layout pass in order to
restore focus index and children states. For example if there is
only 1 item in the first layout pass after restoring, GridView is
unable to restore focus index to 3.
Added lots of BrowseFragment tests for checking savedInstance
gets restored properly.
Fixed generatev4.py script for demo app after new directory
sturcture.
Bug: 68273047
Test: browseFragmentSetNullAdapter browseFragmentRestore
mixedBrowseFragmentRestoreToListRow
mixedBrowseFragmentRestoreToSampleRowsFragmentHideFastLane
mixedBrowseFragmentRestoreToSampleRowsFragmentShowFastLane
mixedBrowseFragmentRestoreToSampleFragmentHideFastLane
mixedBrowseFragmentRestoreToSampleFragmentShowFastLane
Manual test, turn on "dont keep activity", start
BrowseActivity, click card to open DetailsActivity, hit BACK,
BrowseActivity is recreated, focus is restored to exact same row and
item.
Change-Id: I2e2a703b142e6f9573ee961042ed92792bf8c9a5
/frameworks/support/samples/SupportLeanbackDemos/src/main/java/com/example/android/leanback/BrowseFragment.java
/frameworks/support/samples/SupportLeanbackDemos/src/main/java/com/example/android/leanback/BrowseSupportFragment.java
/frameworks/support/samples/SupportLeanbackDemos/src/main/java/com/example/android/leanback/DetailsSupportFragment.java
/frameworks/support/samples/SupportLeanbackDemos/src/main/java/com/example/android/leanback/NewDetailsSupportFragment.java
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