/**
?*?切換播放狀態
?*?*/

private?void?trigger(){
????if(isPlaying){
????????stopMusic();
????}else{
????????playMusic();
????}
}

/**
?*?播放音樂
?*?*/
public?void?playMusic(){
????isPlaying=true;
????mIvPlay.setVisibility(View.GONE);
????mFlPlayMusic.startAnimation(mPlayMusicAnim);
????mIvNeedle.startAnimation(mPlayNeedleAnim);
}

/**
?*?停止播放
?*?*/
public?void?stopMusic(){
????isPlaying=false;
????mIvPlay.setVisibility(View.VISIBLE);
????mFlPlayMusic.clearAnimation();
????mIvNeedle.startAnimation(mStopNeedleAnim);
}

<?xml?version="1.0"?encoding="utf-8"?>
<FrameLayout?xmlns:android="http://schemas.android.com/apk/res/android"
????android:layout_width="wrap_content"
????android:layout_height="wrap_content"
????xmlns:app="http://schemas.android.com/apk/res-auto">
//光盤
????<FrameLayout
????????android:id="@+id/fl_play_music"
????????android:layout_width="wrap_content"
????????android:layout_height="wrap_content"
????????android:layout_marginTop="@dimen/discTopSize">
????????<ImageView
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:src="@mipmap/disc"/>
????????<de.hdodenhof.circleimageview.CircleImageView
????????????android:id="@+id/iv_icon"
????????????android:layout_width="@dimen/playMusicIconSize"
????????????android:layout_height="@dimen/playMusicIconSize"
????????????android:layout_gravity="center"
????????????app:civ_border_width="2dp"
????????????app:civ_border_color="@android:color/white"/>
????????<ImageView
????????????android:id="@+id/iv_play"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:src="@mipmap/play_music"
????????????android:layout_gravity="center"
????????????android:visibility="gone"/>
????</FrameLayout>

//指針
????<ImageView
????????android:id="@+id/iv_needle"
????????android:layout_width="220dp"
????????android:layout_height="220dp"
????????android:src="@mipmap/needle"
????????android:layout_gravity="center_horizontal"
????????android:layout_marginLeft="25dp"
????????android:layout_marginTop="@dimen/discTopSize"></ImageView>
</FrameLayout>