問題點(diǎn)：原始版本在onCreate時(shí)就立刻播放動(dòng)畫，無法靈活的停止音樂的動(dòng)畫效果。
更改方式：動(dòng)畫的更新需要獨(dú)立封裝，點(diǎn)擊播放就進(jìn)行動(dòng)畫展示，點(diǎn)擊暫停就進(jìn)行暫停。
舊代碼：StoryViewController.class
mContext.runOnUiThread(new Runnable() {
@Override
public void run() {
Animation rotateAnimation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotateAnimation.setDuration(10000);
rotateAnimation.setFillAfter(true);
rotateAnimation.setRepeatCount(Animation.INFINITE);
rotateAnimation.setInterpolator(mContext, android.R.anim.linear_interpolator);//設(shè)置動(dòng)畫插入器
mRotate.startAnimation(rotateAnimation);//立即執(zhí)行動(dòng)畫
}
});
新代碼： StoryViewController.class
上面問題涉及到的知識(shí)點(diǎn)：自定義接口，當(dāng)音樂狀態(tài)更新時(shí)進(jìn)行回調(diào)，更新UI. (接口的定義方式)
1: StoryViewController.class
注冊：
playerManager.setmOnPlayerStatusListener(mStatusListener);
回調(diào)：
private IMediaPlayerStatusListener mStatusListener = new IMediaPlayerStatusListener() {
@Override
public void onPlay() {
mPlayState.setBackgroundResource(R.drawable.music_start_selector);
rotateAnimation.startNow();
}
@Override
public void onPause() {
mPlayState.setBackgroundResource(R.drawable.music_pause_selector);
rotateAnimation.cancel();
}
};
2: MediaPlayerManager.class
public void setmOnPlayerStatusListener(IMediaPlayerStatusListener statusListener) {
this.mOnPlayerStatusListener = statusListener;
}
//當(dāng)音樂狀態(tài)更新時(shí)進(jìn)行回調(diào)，更新UI.
public void pause() {
if (isPlaying()) {
try {
mMediaPlayer.pause();
} catch (IllegalStateException e) {
LogUtils.d(TAG, "pause() an Error has occur..." + e.getMessage());
}
}
if (mOnPlayerStatusListener != null) {
mOnPlayerStatusListener.onPause();
}
}
3：接口定義
public interface IMediaPlayerStatusListener {
voidonPlay();
voidonPause();
}
