This CL fixes a regression introduced by my previous CL [1], which
enabled InputMethodManager#getEnabledInputMethodList() to return the
result based on the caller's user ID, not based on the current IME
user, even when it gets called from background users.
Since Keyguard always runs as user 0 currently, it is now Keyguard's
responsibility for querying enabled IMEs with an explicit user ID. To
do so this CL adds a @hide API IMM#getEnabledInputMethodListAsUser()
and lets KeyguardPasswordView use it.
[1]: I192a0f5a1375170d17a4c08af94f23966dbaea8b
7f8ee4b9dd
Bug: 122164939
Fix: 123904896
Test: Manually verified as follows.
1. Build aosp_taimen-userdebug and flash it.
2. make -j SoftKeyboard
3. adb install -r $OUT/system/app/SoftKeyboard/SoftKeyboard.apk
4. adb shell ime enable com.example.android.softkeyboard/.SoftKeyboard
5. adb shell pm create-user test_user
6. adb shell am switch-user 10
7. adb shell locksettings set-password aaaa
8. adb shell wm dismiss-keyguard
9. Make sure that the IME switcher icon is not shown at the right
end of the password field.
Change-Id: I6e7d7353c2b5b1da5d460ae005fb2585f85fb1c4
1fb13c59de