SearchAnimateDecorator.java 文件源码

@Override
protected void apply(ImageView view, TypedArray typedArray) {
    boolean shouldAnimate = typedArray.getBoolean(R.styleable.SearchAnimateDecorator_decorAnimateSearch, false);
    if(!shouldAnimate) return;

    mIv = view;
    mSearchToBar = (AnimatedVectorDrawable) view.getContext().getResources().getDrawable(R.drawable.anim_search_to_bar);
    mBarToSearch = (AnimatedVectorDrawable) view.getContext().getResources().getDrawable(R.drawable.anim_bar_to_search);
    mInterp = AnimationUtils.loadInterpolator(view.getContext(), android.R.interpolator.linear_out_slow_in);
    mDuration = view.getContext().getResources().getInteger(R.integer.duration_bar);
    // iv is sized to hold the search+bar so when only showing the search icon, translate the
    // whole view left by half the difference to keep it centered
    mOffset = -71f * (int) view.getContext().getResources().getDisplayMetrics().scaledDensity;
    view.setTranslationX(mOffset);
    view.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            animate(v);
        }
    });
}