RefreshListView.java 文件源码

private void init(Context context) {
    inflater = LayoutInflater.from(context);
    headView = (LinearLayout) inflater.inflate(R.layout.kf5_list_head, null);
    arrowImageView = (ImageView) headView.findViewById(R.id.kf5_head_arrowImageView);
    arrowImageView.setMinimumWidth(70);
    arrowImageView.setMinimumHeight(50);
    progressBar = (ProgressBar) headView.findViewById(R.id.kf5_head_progressBar);
    tipsTextview = (TextView) headView.findViewById(R.id.kf5_head_tipsTextView);
    lastUpdatedTextView = (TextView) headView.findViewById(R.id.kf5_head_lastUpdatedTextView);
    measureView(headView);
    headContentHeight = headView.getMeasuredHeight();
    headContentWidth = headView.getMeasuredWidth();
    headView.setPadding(0, -1 * headContentHeight, 0, 0);
    headView.invalidate();
    addHeaderView(headView);
    setOnScrollListener(this);
    animation = new RotateAnimation(0, -180,
            RotateAnimation.RELATIVE_TO_SELF, 0.5f,
            RotateAnimation.RELATIVE_TO_SELF, 0.5f);
    animation.setInterpolator(new LinearInterpolator());
    animation.setDuration(250);
    animation.setFillAfter(true);
    reverseAnimation = new RotateAnimation(-180, 0,
            RotateAnimation.RELATIVE_TO_SELF, 0.5f,
            RotateAnimation.RELATIVE_TO_SELF, 0.5f);
    reverseAnimation.setInterpolator(new LinearInterpolator());
    reverseAnimation.setDuration(200);
    reverseAnimation.setFillAfter(true);

    state = DONE;
    isRefreshable = false;
}