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author | Igor Murashkin <iam@google.com> | 2013-11-06 12:09:53 -0800 |
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committer | Igor Murashkin <iam@google.com> | 2013-11-06 12:09:53 -0800 |
commit | e2fa3d7185929f5e51a851d23db2618a41f18d9d (patch) | |
tree | 77f7cd3df2a3de9b1e23670c0b2ea957a2de22e0 | |
parent | 2d8e55f45e52ac0b18c0e46de602e6a6d5ab1001 (diff) | |
download | android_frameworks_ex-e2fa3d7185929f5e51a851d23db2618a41f18d9d.tar.gz android_frameworks_ex-e2fa3d7185929f5e51a851d23db2618a41f18d9d.tar.bz2 android_frameworks_ex-e2fa3d7185929f5e51a851d23db2618a41f18d9d.zip |
camera2: Add #resetState to AutoFocusStateMachine
Bug: 11071158
Change-Id: I24bc2d771703bb502dcbb676b6262954f2017630
-rw-r--r-- | camera2/public/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/camera2/public/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java b/camera2/public/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java index ce66285..23959e4 100644 --- a/camera2/public/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java +++ b/camera2/public/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java @@ -31,6 +31,10 @@ import com.android.ex.camera2.utils.SysTrace; */ public class AutoFocusStateMachine { + /** + * Observe state AF state transitions triggered by + * {@link AutoFocusStateMachine#onCaptureCompleted onCaptureCompleted}. + */ public interface AutoFocusStateListener { /** * The camera is currently focused (either active or passive). @@ -177,6 +181,22 @@ public class AutoFocusStateMachine { } /** + * Reset the current AF state. + * + * <p> + * When dropping capture results (by not invoking {@link #onCaptureCompleted} when a new + * {@link CaptureResult} is available), call this function to reset the state. Otherwise + * the next time a new state is observed this class may incorrectly consider it as the same + * state as before, and not issue any callbacks by {@link AutoFocusStateListener}. + * </p> + */ + public synchronized void resetState() { + if (VERBOSE_LOGGING) Log.v(TAG, "resetState - last state was " + mLastAfState); + + mLastAfState = AF_UNINITIALIZED; + } + + /** * Lock the lens from moving. Typically used before taking a picture. * * <p>After calling this function, submit the new requestBuilder as a separate capture. |