XListViewHeader.java 文件源码

private void initView(Context context) {
    // 初始情况，设置下拉刷新view高度为0
    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
            LayoutParams.MATCH_PARENT, 0);
    mContainer = (LinearLayout) LayoutInflater.from(context).inflate(
            R.layout.xlistview_header, null);
    addView(mContainer, lp);
    setGravity(Gravity.BOTTOM);

    mArrowImageView = findViewById(R.id.xlistview_header_arrow);
    mHintTextView = (TextView)findViewById(R.id.xlistview_header_hint_textview);
    mProgressBar = findViewById(R.id.xlistview_header_progressbar);

    mRotateUpAnim = new RotateAnimation(0.0f, -180.0f,
            Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
            0.5f);
    mRotateUpAnim.setDuration(ROTATE_ANIM_DURATION);
    mRotateUpAnim.setFillAfter(true);
    mRotateDownAnim = new RotateAnimation(-180.0f, 0.0f,
            Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
            0.5f);
    mRotateDownAnim.setDuration(ROTATE_ANIM_DURATION);
    mRotateDownAnim.setFillAfter(true);
}