仿魅族BannerView,图片轮播控件,支持多种模式切换

package com.zhouwei.mzbanner; import com.zhouwei.mzbanner.holder.MZHolderCreator; import com.zhouwei.mzbanner.holder.MZViewHolder; import com.zhouwei.mzbanner.utils.AttrUtils; import com.zhouwei.mzbanner.utils.DensityUtils; import com.zhouwei.mzbanner.utils.LogUtil; import ohos.agp.components.*; import ohos.agp.window.service.DisplayManager; import ohos.app.Context; import ohos.eventhandler.EventHandler; import ohos.eventhandler.EventRunner; import ohos.multimodalinput.event.TouchEvent; import java.util.ArrayList; import java.util.List; /** * Created by zhouwei on 17/5/26. */ public class MZBannerView<T> extends DependentLayout implements Component.TouchEventListener { private static final String TAG = "MZBannerView"; private CustomViewPager mViewPager; private MZPagerAdapter mAdapter; private List<T> mDatas; private boolean mIsAutoPlay = true;// 是否自动播放 private int mCurrentItem = 0;//当前位置 private EventHandler mHandler = new EventHandler(EventRunner.create()); private int mDelayedTime = 3000;// Banner 切换时间间隔 // private ViewPagerScroller mViewPagerScroller;//控制ViewPager滑动速度的Scroller private boolean mIsOpenMZEffect = true;// 开启魅族Banner效果 private boolean mIsCanLoop = true;// 是否轮播图片 private DirectionalLayout mIndicatorContainer;//indicator容器 private ArrayList<Image> mIndicators = new ArrayList<>(); //mIndicatorRes[0] 为为选中，mIndicatorRes[1]为选中 private int[] mIndicatorRes = new int[]{ResourceTable.Media_indicator_normal, ResourceTable.Media_indicator_selected}; private int mIndicatorPaddingLeft = 0;// indicator 距离左边的距离 private int mIndicatorPaddingRight = 0;//indicator 距离右边的距离 private int mIndicatorPaddingTop = 0;//indicator 距离上边的距离 private int mIndicatorPaddingBottom = 0;//indicator 距离下边的距离 private int mMZModePadding = 0;//在仿魅族模式下，由于前后显示了上下一个页面的部分，因此需要计算这部分padding private int mIndicatorAlign = 1; private PageSlider.PageChangedListener mOnPageChangeListener; private BannerPageClickListener mBannerPageClickListener; /** * 中间Page是否覆盖两边，默认覆盖 */ private boolean mIsMiddlePageCover = true; private static final String open_mz_mode = "open_mz_mode"; private static final String middle_page_cover = "middle_page_cover"; private static final String canLoop = "canLoop"; private static final String indicatorAlign = "indicatorAlign"; private static final String indicatorPaddingLeft = "indicatorPaddingLeft"; private static final String indicatorPaddingRight = "indicatorPaddingRight"; private static final String indicatorPaddingTop = "indicatorPaddingTop"; private static final String indicatorPaddingBottom = "indicatorPaddingBottom"; public enum IndicatorAlign { LEFT,//做对齐 CENTER,//居中对齐 RIGHT //右对齐 } public MZBannerView(Context context) { super(context); init(); } public MZBannerView(Context context, AttrSet attrs) { super(context, attrs); readAttrs(attrs); init(); } public MZBannerView(Context context, AttrSet attrs, String defStyleAttr) { super(context, attrs, defStyleAttr); readAttrs(attrs); init(); } private void readAttrs(AttrSet attrs) { mIsOpenMZEffect = AttrUtils.getBooleanFromAttr(attrs, open_mz_mode, true); mIsMiddlePageCover = AttrUtils.getBooleanFromAttr(attrs, middle_page_cover, true); mIsCanLoop = AttrUtils.getBooleanFromAttr(attrs, canLoop, true); mIndicatorAlign = IndicatorAlign.CENTER.ordinal(); mIndicatorPaddingLeft = AttrUtils.getDimensionFromAttr(attrs, indicatorPaddingLeft, 0); mIndicatorPaddingRight = AttrUtils.getDimensionFromAttr(attrs, indicatorPaddingRight, 0); mIndicatorPaddingTop = AttrUtils.getDimensionFromAttr(attrs, indicatorPaddingTop, 0); mIndicatorPaddingBottom = AttrUtils.getDimensionFromAttr(attrs, indicatorPaddingBottom, 0); String indicatorAlignValue = AttrUtils.getStringFromAttr(attrs, indicatorAlign, IndicatorAlign.CENTER.name()); if (indicatorAlignValue != null && indicatorAlignValue.length() > 0) { switch (indicatorAlignValue) { case "left": mIndicatorAlign = IndicatorAlign.LEFT.ordinal(); break; case "center": mIndicatorAlign = IndicatorAlign.CENTER.ordinal(); break; case "right": mIndicatorAlign = IndicatorAlign.RIGHT.ordinal(); break; } } LogUtil.error(TAG, "1====readAttrs====" + mIsOpenMZEffect + "," + mIsMiddlePageCover + "," + mIsCanLoop + "," + mIndicatorPaddingTop + "," + mIndicatorPaddingBottom); } private void init() { Component view = null; if (mIsOpenMZEffect) { view = LayoutScatter.getInstance(getContext()).parse(ResourceTable.Layout_mz_banner_effect_layout, this, true); } else { view = LayoutScatter.getInstance(getContext()).parse(ResourceTable.Layout_mz_banner_normal_layout, this, true); } mIndicatorContainer = (DirectionalLayout) view.findComponentById(ResourceTable.Id_banner_indicator_container); mViewPager = (CustomViewPager) view.findComponentById(ResourceTable.Id_mzbanner_vp); // mViewPager.setOffscreenPageLimit(4); // mViewPager.setPageCacheSize(4); mMZModePadding = DensityUtils.dpToPx(30, getContext()); // 初始化Scroller initViewPagerScroll(); sureIndicatorPosition(); setTouchEventListener(this); } /** * 是否开启魅族模式 */ private void setOpenMZEffect() { // 魅族模式 if (mIsOpenMZEffect) { mViewPager.setClipEnabled(true); } } /** * make sure the indicator */ private void sureIndicatorPosition() { if (mIndicatorAlign == IndicatorAlign.LEFT.ordinal()) { setIndicatorAlign(IndicatorAlign.LEFT); } else if (mIndicatorAlign == IndicatorAlign.CENTER.ordinal()) { setIndicatorAlign(IndicatorAlign.CENTER); } else { setIndicatorAlign(IndicatorAlign.RIGHT); } } /** * 设置ViewPager的滑动速度 */ private void initViewPagerScroll() { // try { // Field mScroller = null; // mScroller = ViewPager.class.getDeclaredField("mScroller"); // mScroller.setAccessible(true); // mViewPagerScroller = new ViewPagerScroller( // mViewPager.getContext()); // mScroller.set(mViewPager, mViewPagerScroller); // // } catch (NoSuchFieldException e) { // e.printStackTrace(); // } catch (IllegalArgumentException e) { // e.printStackTrace(); // } catch (IllegalAccessException e) { // e.printStackTrace(); // } } private final Runnable mLoopRunnable = new Runnable() { @Override public void run() { LogUtil.error(this.getClass().getName(), "1=======mLoopRunnable 55555===" + mAdapter.getCount() + "," + mIsAutoPlay); if (mIsAutoPlay) { mCurrentItem = mViewPager.getCurrentPage(); LogUtil.error(this.getClass().getName(), "1=======mLoopRunnable START===" + mCurrentItem); mCurrentItem++; LogUtil.error(this.getClass().getName(), "1=======mLoopRunnable 0===" + mAdapter.getCount()); if (mCurrentItem == mAdapter.getCount() - 1) { LogUtil.error(this.getClass().getName(), "1=======mLoopRunnable 1===" + mCurrentItem); mCurrentIt