本篇内容介绍了“Android如何实现商品详情页功能”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
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先看看效果实现
由于代码量过多, 就不一一讲解只介绍几个核心的自定义控件)
/** * 商品详情页底部的webview */ public class ItemWebView extends WebView { public float oldY; private int t; private float oldX; public ItemWebView(Context context) { super(context); } public ItemWebView(Context context, AttributeSet attrs) { super(context, attrs); } public ItemWebView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } @Override public boolean onTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_MOVE: float Y = ev.getY(); float Ys = Y - oldY; float X = ev.getX(); //滑动到顶部让父控件重新获得触摸事件 if (Ys > 0 && t == 0) { getParent().getParent().requestDisallowInterceptTouchEvent(false); } break; case MotionEvent.ACTION_DOWN: getParent().getParent().requestDisallowInterceptTouchEvent(true); oldY = ev.getY(); oldX = ev.getX(); break; case MotionEvent.ACTION_UP: getParent().getParent().requestDisallowInterceptTouchEvent(true); break; default: break; } return super.onTouchEvent(ev); } @Override protected void onScrollChanged(int l, int t, int oldl, int oldt) { this.t = t; super.onScrollChanged(l, t, oldl, oldt); } }/** * 商品详情页底部的ListView */ public class ItemListView extends ListView implements AbsListView.OnScrollListener { private float oldX, oldY; private int currentPosition; public ItemListView(Context context) { super(context); setOnScrollListener(this); } public ItemListView(Context context, AttributeSet attrs) { super(context, attrs); setOnScrollListener(this); } public ItemListView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); setOnScrollListener(this); } @Override public boolean onTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case MotionEvent.ACTION_MOVE: float Y = ev.getY(); float Ys = Y - oldY; float X = ev.getX(); int [] location = new int [2]; getLocationInWindow(location); //滑动到顶部让父控件重新获得触摸事件 if (Ys > 0 && currentPosition == 0) { getParent().getParent().requestDisallowInterceptTouchEvent(false); } break; case MotionEvent.ACTION_DOWN: getParent().getParent().requestDisallowInterceptTouchEvent(true); oldY = ev.getY(); oldX = ev.getX(); break; case MotionEvent.ACTION_UP: getParent().getParent().requestDisallowInterceptTouchEvent(true); break; default: break; } return super.onTouchEvent(ev); } @Override public void onScrollStateChanged(AbsListView view, int scrollState) { currentPosition = getFirstVisiblePosition(); } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { } }/** * 提供禁止滑动功能的自定义ViewPager */ public class NoScrollViewPager extends ViewPager { private boolean noScroll = false; public NoScrollViewPager(Context context, AttributeSet attrs) { super(context, attrs); } public NoScrollViewPager(Context context) { super(context); } public void setNoScroll(boolean noScroll) { this.noScroll = noScroll; } @Override public void scrollTo(int x, int y) { super.scrollTo(x, y); } @Override public boolean onTouchEvent(MotionEvent arg0) { if (noScroll) return false; else return super.onTouchEvent(arg0); } @Override public boolean onInterceptTouchEvent(MotionEvent arg0) { if (noScroll) return false; else return super.onInterceptTouchEvent(arg0); } @Override public void setCurrentItem(int item, boolean smoothScroll) { super.setCurrentItem(item, smoothScroll); } @Override public void setCurrentItem(int item) { super.setCurrentItem(item); } }商品模块最外层的布局是一个自定义的ViewGroup名为SlideDetailsLayout
SlideDetailsLayout内容有两个View, mFrontView(***个View)和mBehindView(第二个View)
有两种状态, 状态设置为close就显示***个商品数据View, open状态就显示第二个图文详情View
@SuppressWarnings("unused") public class SlideDetailsLayout extends ViewGroup { /** * Callback for panel OPEN-CLOSE status changed. */ public interface OnSlideDetailsListener { /** * Called after status changed. * * @param status {@link Status} */ void onStatucChanged(Status status); } public enum Status { /** Panel is closed */ CLOSE, /** Panel is opened */ OPEN; public static Status valueOf(int stats) { if (0 == stats) { return CLOSE; } else if (1 == stats) { return OPEN; } else { return CLOSE; } } } private static final float DEFAULT_PERCENT = 0.2f; private static final int DEFAULT_DURATION = 300; private View mFrontView; private View mBehindView; private float mTouchSlop; private float mInitMotionY; private float mInitMotionX; private View mTarget; private float mSlideOffset; private Status mStatus = Status.CLOSE; private boolean isFirstShowBehindView = true; private float mPercent = DEFAULT_PERCENT; private long mDuration = DEFAULT_DURATION; private int mDefaultPanel = 0; private OnSlideDetailsListener mOnSlideDetailsListener; public SlideDetailsLayout(Context context) { this(context, null); } public SlideDetailsLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public SlideDetailsLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SlideDetailsLayout, defStyleAttr, 0); mPercent = a.getFloat(R.styleable.SlideDetailsLayout_percent, DEFAULT_PERCENT); mDuration = a.getInt(R.styleable.SlideDetailsLayout_duration, DEFAULT_DURATION); mDefaultPanel = a.getInt(R.styleable.SlideDetailsLayout_default_panel, 0);“Android如何实现商品详情页功能”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注创新互联网站，小编将为大家输出更多高质量的实用文章！
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