private void init() {
header = LayoutInflater.from(context).inflate(R.layout.list_header, null);
footer = LayoutInflater.from(context).inflate(R.layout.listfooter, null);
arrowImageView = (ImageView) header.findViewById(R.id.head_arrowImageView);
progressBar = (ImageView) header.findViewById(R.id.head_progressBar);
tipsTextView = (TextView) header.findViewById(R.id.head_tipsTextView);
lastUpdatedTextView = (TextView) header.findViewById(R.id.head_lastUpdatedTextView);
Common.measureView(header);
headerHeight = header.getMeasuredHeight();
addHeaderView(header, null, false);
addFooterView(footer, null, false);
footer.setVisibility(View.GONE);
header.setPadding(0, -1 * headerHeight, 0, 0);
animation =
new RotateAnimation(
0, -180, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
animation.setInterpolator(new LinearInterpolator());
animation.setDuration(250);
animation.setFillAfter(true);
reverseAnimation =
new RotateAnimation(
-180, 0, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
reverseAnimation.setInterpolator(new LinearInterpolator());
reverseAnimation.setDuration(200);
reverseAnimation.setFillAfter(true);
}
private void changeHeaderViewByState() {
lastUpdatedTextView.setText(
context.getString(R.string.refresh_lasttime) + Common.howTimeAgo(context, lastRefreshTime));
if (isRefreshable) {
switch (state) {
case RELEASE_TO_REFRESH:
arrowImageView.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.GONE);
tipsTextView.setVisibility(View.VISIBLE);
arrowImageView.clearAnimation();
arrowImageView.startAnimation(animation);
tipsTextView.setText(context.getString(R.string.refresh_release));
break;
case PULL_TO_REFRESH:
progressBar.setVisibility(View.GONE);
tipsTextView.setVisibility(View.VISIBLE);
arrowImageView.clearAnimation();
arrowImageView.setVisibility(View.VISIBLE);
// 是由RELEASE_To_REFRESH状态转变来的
if (isBack) {
isBack = false;
arrowImageView.clearAnimation();
arrowImageView.startAnimation(reverseAnimation);
}
// Log.v(TAG, "当前状态，下拉刷新");
tipsTextView.setText(context.getString(R.string.refresh_pull));
break;
case REFRESHING:
header.setPadding(0, 0, 0, 0);
progressBar.setVisibility(View.VISIBLE);
arrowImageView.clearAnimation();
arrowImageView.setVisibility(View.GONE);
// tipsTextview.setText(context.getString(R.string.loading));
tipsTextView.setVisibility(View.GONE);
lastUpdatedTextView.setVisibility(View.GONE);
// Log.v(TAG, "当前状态,正在刷新...");
break;
case DONE:
header.setPadding(0, -1 * headerHeight, 0, 0);
progressBar.setVisibility(View.GONE);
arrowImageView.clearAnimation();
arrowImageView.setImageResource(R.drawable.arrow);
tipsTextView.setText(context.getString(R.string.refresh_pull));
tipsTextView.setVisibility(View.VISIBLE);
lastUpdatedTextView.setVisibility(View.VISIBLE);
// Log.v(TAG, "当前状态，done");
break;
default:
break;
}
}
}