public SoundLevels(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
// Safe source, replaced with system one when attached.
mLevelSource = new AudioLevelSource();
mLevelSource.setSpeechLevel(0);
final TypedArray a =
context.obtainStyledAttributes(attrs, R.styleable.SoundLevels, defStyle, 0);
mMaximumLevelSize = a.getDimensionPixelOffset(R.styleable.SoundLevels_maxLevelRadius, 0);
mMinimumLevelSize = a.getDimensionPixelOffset(R.styleable.SoundLevels_minLevelRadius, 0);
mMinimumLevel = mMinimumLevelSize / mMaximumLevelSize;
mPrimaryLevelPaint = new Paint();
mPrimaryLevelPaint.setColor(a.getColor(R.styleable.SoundLevels_primaryColor, Color.BLACK));
mPrimaryLevelPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
a.recycle();
// This animator generates ticks that invalidate the
// view so that the animation is synced with the global animation loop.
// TODO: We could probably remove this in favor of using postInvalidateOnAnimation
// which might improve things further.
mSpeechLevelsAnimator = new TimeAnimator();
mSpeechLevelsAnimator.setRepeatCount(ObjectAnimator.INFINITE);
mSpeechLevelsAnimator.setTimeListener(
new TimeListener() {
@Override
public void onTimeUpdate(
final TimeAnimator animation, final long totalTime, final long deltaTime) {
invalidate();
}
});
}
