2023年7月15日发(作者：)

仿美团下拉刷新动画经常使⽤美团，感觉下拉刷新动画挺好玩的，抽空也做了⼀个，图⽚资源是⽹上获取，先看效果： 本⽂所实现的功能是在⽹上流传的下拉刷新框架（），然后修改⽽得的，只在分享经验，代码如下：82936373839464748495657585960package refresh_view;

import fersh.R;

import t;import ;import ;import ionDrawable;import Drawable;import le;import uteSet;import Inflater;import Event;import ;import oup;import Interpolator;import Animation;import rView;import iew;import Layout;import ssBar;import View;import ew;

public class PullToRefreshView extends LinearLayout{

private static final int PULL_TO_REFRESH = 2; private static final int RELEASE_TO_REFRESH = 3; private static final int REFRESHING = 4; private static final int PULL_UP_STATE = 0; private static final int PULL_DOWN_STATE = 1; private static final int HEADER_OFFERT = 20; private boolean enablePullTorefresh = true; private boolean enablePullLoadMoreDataStatus = true; private int mLastMotionY; private boolean mLock; private boolean isFooter; private View mHeaderView; private View mFooterView; private LayoutParams params; private AdapterView mAdapterView; private ScrollView mScrollView; private int mHeaderViewHeight; private int mFooterViewHeight;

private ImageView mHeaderImageView; private ImageView mFooterImageView; private TextView mFooterTextView; private ProgressBar mFooterProgressBar; private LayoutInflater mInflater; private int mHeaderState; private int mFooterState; private int mPullState; private RotateAnimation mFlipAnimation; private RotateAnimation mReverseFlipAnimation; private OnFooterRefreshListener mOnFooterRefreshListener; private OnHeaderRefreshListener mOnHeaderRefreshListener; private float mCurrentDragPercent; private boolean isShow = false; private Drawable showDrawable;6667686976777879868788899697989959124125 private Drawable showDrawable;

public PullToRefreshView(Context context) { super(context); init(); }

public PullToRefreshView(Context context, AttributeSet attrs) { super(context, attrs); init(); }

private void init() { setOrientation(AL);

// Load all of the animations we need in code rather than through XML

mFlipAnimation = new RotateAnimation(0, -180,

VE_TO_SELF, 0.5f,

VE_TO_SELF, 0.5f);

erpolator(new LinearInterpolator());

ation(150); lAfter(true); mReverseFlipAnimation = new RotateAnimation(-180, 0,

VE_TO_SELF, 0.5f,

VE_TO_SELF, 0.5f);

erpolator(new LinearInterpolator());

ation(150);

lAfter(true);

mHeaderState = 2; mInflater = (getContext()); addHeaderView(); } /** * 头部刷新视图 */ private void addHeaderView() { mHeaderView = e(h_header, this, false);

mHeaderImageView = (ImageView) ewById(_to_refresh_image); measureView(mHeaderView); mHeaderViewHeight = suredHeight(); params = new LayoutParams(_PARENT, mHeaderViewHeight); gin = -(mHeaderViewHeight); addView(mHeaderView, params); }

private void measureView(View child) { Params p = outParams(); if (p == null) { p = new Params(_PARENT, _CONTENT); }

int childWidthSpec = ldMeasureSpec(0, 0 + 0, ); int lpHeight = ; int childHeightSpec; if (lpHeight > 0) { childHeightSpec = asureSpec(lpHeight, Y); } else { childHeightSpec = asureSpec(0, IFIED); } e(childWidthSpec, childHeightSpec); }

/** * 尾部刷新视图 */ private void addFooterView() {8648648648189190 private void addFooterView() { mFooterView = e(h_footer, this, false); mFooterImageView = (ImageView) ewById(_to_load_image); mFooterTextView = (TextView) ewById(_to_load_text); mFooterProgressBar = (ProgressBar) ewById(_to_load_progress);

measureView(mFooterView); mFooterViewHeight = suredHeight(); LayoutParams params = new LayoutParams(_PARENT, mFooterViewHeight); addView(mFooterView, params); }

@Override protected void onFinishInflate() { shInflate(); // footer view 鍦ㄦ