ListViewHeader类
/**
?* @file XListViewHeader.java
?* @create Apr 18, 2012 5:22:27 PM
?* @author Maxwin
?* @description XListView's header
?*/
package me.maxwin.view;
import me.maxwin.R;
import android.content.Context;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
public class XListViewHeader extends LinearLayout {
?private LinearLayout mContainer;
?private ImageView mArrowImageView;
?private ProgressBar mProgressBar;
?private TextView mHintTextView;
?private int mState = STATE_NORMAL;
?private Animation mRotateUpAnim;
?private Animation mRotateDownAnim;
?
?private final int ROTATE_ANIM_DURATION = 180;
?
?public final static int STATE_NORMAL = 0;
?public final static int STATE_READY = 1;
?public final static int STATE_REFRESHING = 2;
?public XListViewHeader(Context context) {
? super(context);
? initView(context);
?}
?/**
? * @param context
? * @param attrs
? */
?public XListViewHeader(Context context, AttributeSet attrs) {
? super(context, attrs);
? initView(context);
?}
?private void initView(Context context) {
? // 鍒濆鎯呭喌锛岃缃笅鎷夊埛鏂皏iew楂樺害涓?0
? LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
? ? LayoutParams.FILL_PARENT, 0);
? mContainer = (LinearLayout) LayoutInflater.from(context).inflate(
? ? R.layout.xlistview_header, null);
? addView(mContainer, lp);
? setGravity(Gravity.BOTTOM);
? mArrowImageView = (ImageView)findViewById(R.id.xlistview_header_arrow);
? mHintTextView = (TextView)findViewById(R.id.xlistview_header_hint_textview);
? mProgressBar = (ProgressBar)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);
?}
?public void setState(int state) {
? if (state == mState) return ;
?
? if (state == STATE_REFRESHING) {?// 鏄剧ず杩涘害
? ?mArrowImageView.clearAnimation();
? ?mArrowImageView.setVisibility(View.INVISIBLE);
? ?mProgressBar.setVisibility(View.VISIBLE);
? } else {?// 鏄剧ず绠ご鍥剧墖
? ?mArrowImageView.setVisibility(View.VISIBLE);
? ?mProgressBar.setVisibility(View.INVISIBLE);
? }
?
? switch(state){
? case STATE_NORMAL:
? ?if (mState == STATE_READY) {
? ? mArrowImageView.startAnimation(mRotateDownAnim);
? ?}
? ?if (mState == STATE_REFRESHING) {
? ? mArrowImageView.clearAnimation();
? ?}
? ?mHintTextView.setText(R.string.xlistview_header_hint_normal);
? ?break;
? case STATE_READY:
? ?if (mState != STATE_READY) {
? ? mArrowImageView.clearAnimation();
? ? mArrowImageView.startAnimation(mRotateUpAnim);
? ? mHintTextView.setText(R.string.xlistview_header_hint_ready);
? ?}
? ?break;
? case STATE_REFRESHING:
? ?mHintTextView.setText(R.string.xlistview_header_hint_loading);
? ?break;
? ?default:
? }
?
? mState = state;
?}
?
?public vo