statusBar变为透明，设置后导航栏隐藏

Question

设置statusBar后，transparent变为backgroundcolor=white?。

唯一的方法是设置statusBar /** * This state represents a transfer that has been queued, but has not yet * started */ WAITING, /** * This state represents a transfer that is currently uploading or * downloading data */ IN_PROGRESS, /** * This state represents a transfer that is paused */ PAUSED, /** * This state represents a transfer that has been resumed and queued for * execution, but has not started to actively transfer data */ RESUMED_WAITING, /** * This state represents a transfer that is completed */ COMPLETED, /** * This state represents a transfer that is canceled */ CANCELED, /** * This state represents a transfer that has failed */ FAILED, /** * This state represents a transfer that is currently on hold, waiting for * the network to become available */ WAITING_FOR_NETWORK, /** * This state represents a transfer that is a completed part of a multi-part * upload. This state is primarily used internally and there should be no * need to use this state. */ PART_COMPLETED, /** * This state represents a transfer that has been requested to cancel, but * the service processing transfers has not yet fulfilled this request. This * state is primarily used internally and there should be no need to use * this state. */ PENDING_CANCEL, /** * This state represents a transfer that has been requested to pause by the * client, but the service processing transfers has not yet fulfilled this * request. This state is primarily used internally and there should be no * need to use this state. */ PENDING_PAUSE, /** * This state represents a transfer that has been requested to pause by the * client because the network has been loss, but the service processing * transfers has not yet fulfilled this request. This state is primarily * used internally and there should be no need to use this state. */ PENDING_NETWORK_DISCONNECT, /** * This is an internal value used to detect if the current transfer is in an * unknown state */ UNKNOWN; （实际上它有效......）