Android 下音频播放 MediaPlayer(2)

getAudioSessionId

This method can be called in any state and calling it does not change the object state.

getCurrentPosition

{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted}

{Error}

Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to theErrorstate.

getDuration

we started sieving in august 2007 and stopped in april 2009.。so i started for town, in the wagon, and when i was half-way i see a wagon coming, and sure enough it was tom sawyer, and i stopped and waited till he……。b．controlledc．blocked b．balanceb．actsc．breath c．paced．stopped d．touch d．race d．eventually d．paused d．miss d．lonely d．panic d．measure d．ord．crowd d．hoping d．promised d．desperate d．connected 42．a．depended on44．a．vehicles45．a．deliberately46．a．failed47．a．follow49．a．anger50．a．glance51．a．pleased52．a．but53．a．teamb．came across c．1ooked after d．cared for b．constantlyc．absolutely b．remembered c．sped b．1iftb．curiousb．examination b．soc．catch 48．a．nervousc．guiltyc．chat c．and c．pair b，excitement c．regret b．disappointed c．puzzledd．scared b．groupb．repliedb．even54．a．forgetting55．a．shouted56．a．ready57．a．almost58．a．filledb．realizingc．reporting c．apologized b．thankfulc．eager c．immediately d．gradually b．coveredc．provided。

{Idle, Initialized, Error}

Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to theErrorstate.

getVideoHeight

{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted}

{Error}

Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to theErrorstate.

getVideoWidth

{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted}

{Error}

Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to theErrorstate.

isPlaying

{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted}

{Error}

public object invoke(object proxy, method method, object[] args)。 public object invoke(object proxy, method method, object[] args)。public object invoke(object proxy, method method, object[] args) throws throwable 。

{Started, Paused}

this is similar to the above. there is no protocol violation, but theclient is mistakenly trying to set up a prepared statement with thesame name as an existing one without cleaning up the original. (thename of the prepared statement in the error will, of course, vary).。 before identifier ':\: expected ': error c2146: references must be initialized。25v the ic will enter an idle state where both gate-drive outputs are low, the oscillator is stopped, the soft-start capacitor css keeps its charge and only the 2v reference at rfmin pin stays alive to minimize ic's consumption and vcc capacitor's discharge。

Successful invoke of this method in a valid state transfers the object to thePausedstate. Calling this method in an invalid state transfers the object to theErrorstate.

prepare

{Initialized, Stopped}

{Idle, Prepared, Started, Paused, PlaybackCompleted, Error}

Successful invoke of this method in a valid state transfers the object to thePreparedstate. Calling this method in an invalid state throws an IllegalStateException.

prepareAsync

{Initialized, Stopped}

{Idle, Prepared, Started, Paused, PlaybackCompleted, Error}

public object invoke(object proxy, method method, object[] args) throws throwable {。 public object invoke(object proxy, method method, object[] args) throws throwable {。 public object invoke(object proxy, method method, object[] args) throws illegalaccessexception, illegalargumentexception, invocationtargetexception {。

release

After, the object is no longer

available.

{Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, Error}

After, the object is like being

just created.

{Prepared, Started, Paused, PlaybackCompleted}

{Idle, Initialized, Stopped, Error}

public object invoke(object proxy, method method, object[] args)。 public object invoke(object proxy, method method, object[] args)。public object invoke(object proxy, method method, object[] args) throws throwable 。

setAudioSessionId

{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, Error}

This method must be called in idle state as the audio session ID must be known before calling setDataSource. Calling it does not change the object state.

setAudioStreamType

{Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted}

{Error}

Successful invoke of this method does not change the state. In order for the target audio stream type to become effective, this method must be called before prepare() or prepareAsync().

setAuxEffectSendLevel

Calling this method does not change the object state.

setDataSource

{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, Error}

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