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Added in API level 23

MediaDrm.OnKeyStatusChangeListener

public static interface MediaDrm.OnKeyStatusChangeListener

android.media.MediaDrm.OnKeyStatusChangeListener

当drm会话中的键更改状态时要调用的回调的接口定义。

摘要(Summary)

公共方法(Public methods)
abstract void onKeyStatusChange(MediaDrm md, byte[] sessionId, List<MediaDrm.KeyStatus> keyInformation, boolean hasNewUsableKey)

当会话中的密钥更改状态时调用，例如许可证更新或到期时。

公共方法(Public methods)

onKeyStatusChange

Added in API level 23 
void onKeyStatusChange (MediaDrm md, 
                byte[] sessionId, 
                List<MediaDrm.KeyStatus> keyInformation, 
                boolean hasNewUsableKey)

当会话中的密钥更改状态时调用，例如许可证更新或到期时。

参数(Parameters)
md MediaDrm: the MediaDrm object on which the event occurred
sessionId byte: the DRM session ID on which the event occurred
keyInformation List: a list of MediaDrm.KeyStatus instances indicating the status for each key in the session
hasNewUsableKey boolean: indicates if a key has been added that is usable, which may trigger an attempt to resume playback on the media stream if it is currently blocked waiting for a key.
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