BannerViewPager

allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}
	

implementation 'com.github.zhpanvip:BannerViewPager:latestVersion'

    <com.zhpan.bannerview.BannerViewPager
            android:id="@+id/banner_view"
            android:layout_width="match_parent"
            android:layout_margin="10dp"
            android:layout_height="160dp" />

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageView
            android:id="@+id/banner_image"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="centerCrop" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:gravity="center_vertical">

            <TextView
                android:id="@+id/tv_describe"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_gravity="center_vertical"
                android:layout_marginStart="15dp"
                android:gravity="center_vertical"
                android:paddingTop="5dp"
                android:paddingBottom="5dp"
                android:textColor="#FFFFFF"
                android:textSize="16sp" />
        </LinearLayout>

    </RelativeLayout>

    public class NetViewHolder extends BaseViewHolder<BannerData> {

        public NetViewHolder(@NonNull View itemView) {
            super(itemView);
            CornerImageView imageView = findView(R.id.banner_image);
            imageView.setRoundCorner(BannerUtils.dp2px(0));
        }

        @Override
        public void bindData(BannerData data, int position, int pageSize) {
            CornerImageView imageView = findView(R.id.banner_image);
            Glide.with(imageView).load(data.getImagePath()).placeholder(R.drawable.placeholder).into(imageView);
        }
    }

     int adapterPosition = getAdapterPosition();
     int realPosition = BannerUtils.getRealPosition(isCanLoop, adapterPosition, mList.size());

public class HomeAdapter extends BaseBannerAdapter<BannerData, NetViewHolder> {
    @Override
    protected void onBind(NetViewHolder holder, BannerData data, int position, int pageSize) {
        holder.bindData(data, position, pageSize);
    }

    @Override
    public NetViewHolder createViewHolder(View itemView, int viewType) {
        return new NetViewHolder(itemView);
    }

    @Override
    public int getLayoutId(int viewType) {
        return R.layout.item_net;
    }
}

    private BannerViewPager<CustomBean, NetViewHolder> mViewPager;
    ...
	private void setupViewPager() {
             mViewPager = findViewById(R.id.banner_view);
             mViewPager
                       .setAutoPlay(true)
                       .setScrollDuration(800)
                       .setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                       .setLifecycleRegistry(getLifecycle())
                       .setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                       .setIndicatorSliderWidth(getResources().getDimensionPixelOffset(R.dimen.dp_4), getResources().getDimensionPixelOffset(R.dimen.dp_10))
                       .setIndicatorSliderColor(getColor(R.color.red_normal_color), getColor(R.color.red_checked_color))
                       .setOrientation(ViewPager2.ORIENTATION_VERTICAL)
                       .setInterval(2000)
                       .setAdapter(new HomeAdapter())
                       .registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
                           @Override
                           public void onPageSelected(int position) {
                               super.onPageSelected(position);
                               BannerData bannerData = mViewPagerHorizontal.getData().get(position);
                               mTvTitle.setText(bannerData.getTitle());
                           }
                       }).create();
        }

    private lateinit var mViewPager: BannerViewPager<CustomBean, NetViewHolder>
    ...

    private fun setupViewPager() {
            mViewPager = findViewById(R.id.banner_view)
            mViewPager.apply {
                adapter = HomeAdapter()
                setAutoPlay(true)
                setLifecycleRegistry(lifecycle)
                setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                setIndicatorMargin(0, 0, 0, resources.getDimension(R.dimen.dp_100).toInt())
                setIndicatorSlideMode(IndicatorSlideMode.SMOOTH)
                setIndicatorSliderRadius(resources.getDimension(R.dimen.dp_3).toInt(), resources.getDimension(R.dimen.dp_4_5).toInt())
                setIndicatorSliderColor(ContextCompat.getColor(this@WelcomeActivity, R.color.white),
                        ContextCompat.getColor(this@WelcomeActivity, R.color.white_alpha_75))
                registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
                    override fun onPageSelected(position: Int) {
                        BannerUtils.log("position:$position")
                    }
                })
            }.create()
        }

    mViewPager.refreshData(data)

    private BannerViewPager<CustomBean, NetViewHolder> mViewPager;
    ...
	private void setupViewPager() {
             mViewPager = findViewById(R.id.banner_view);
             mViewPager
                       .setAutoPlay(true)
                       .setScrollDuration(800)
                       .setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                       .setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                       .setIndicatorSliderWidth(getResources().getDimensionPixelOffset(R.dimen.dp_4), getResources().getDimensionPixelOffset(R.dimen.dp_10))
                       .setIndicatorSliderColor(getColor(R.color.red_normal_color), getColor(R.color.red_checked_color))
                       .setOrientation(ViewPager2.ORIENTATION_VERTICAL)
                       .setInterval(2000)
                       .setAdapter(new HomeAdapter())
                       .registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
                           @Override
                           public void onPageSelected(int position) {
                               super.onPageSelected(position);
                               BannerData bannerData = mViewPagerHorizontal.getData().get(position);
                               mTvTitle.setText(bannerData.getTitle());
                           }
                       }).create(getPicList(4));
        }

    mViewPager.setLifecycleRegistry(getLifecycle())

    // 下边代码已过时
    @Override
    protected void onPause() {
        if (mBannerViewPager != null)
                mBannerViewPager.stopLoop();
        super.onPause();
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (mBannerViewPager != null)
            mBannerViewPager.startLoop();
    }

public class FigureIndicatorView extends BaseIndicatorView {

    private int radius = DpUtils.dp2px(20);

    private int backgroundColor = Color.parseColor("#88FF5252");

    private int textColor = Color.WHITE;

    private int textSize=DpUtils.dp2px(13);

    public FigureIndicatorView(Context context) {
        this(context, null);
    }

    public FigureIndicatorView(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public FigureIndicatorView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mPaint = new Paint();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        setMeasuredDimension(2 * radius, 2 * radius);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        mPaint.setColor(backgroundColor);
        canvas.drawCircle(getWidth() / 2, getHeight() / 2, radius, mPaint);
        mPaint.setColor(textColor);
        mPaint.setTextSize(textSize);
        String text = currentPosition + 1 + "/" + pageSize;
        int textWidth = (int) mPaint.measureText(text);
        Paint.FontMetricsInt fontMetricsInt = mPaint.getFontMetricsInt();
        int baseline = (getMeasuredHeight() - fontMetricsInt.bottom + fontMetricsInt.top) / 2 - fontMetricsInt.top;
        canvas.drawText(text, (getWidth() - textWidth) / 2, baseline, mPaint);
    }

    public void setRadius(int radius) {
        this.radius = radius;
    }

    @Override
    public void setBackgroundColor(@ColorInt int backgroundColor) {
        this.backgroundColor = backgroundColor;
    }

    public void setTextSize(int textSize) {
        this.textSize = textSize;
    }

    public void setTextColor(int textColor) {
        this.textColor = textColor;
    }
}

    FigureIndicatorView indicatorView = new FigureIndicatorView(mContext);
    indicatorView.setRadius(getResources().getDimensionPixelOffset(R.dimen.dp_18));
    indicatorView.setTextSize(getResources().getDimensionPixelSize(R.dimen.sp_13));
    indicatorView.setBackgroundColor(Color.parseColor("#aa118EEA"));

   mViewPager.setAutoPlay(false).setCanLoop(true)
               .setIndicatorSlideMode(IndicatorSlideMode.NORMAL)
               .setIndicatorVisibility(View.VISIBLE)
               .setIndicatorGravity(IndicatorGravity.END)
               .setIndicatorView(indicatorView).create(getPicList(4));

    -keep class androidx.recyclerview.widget.**{*;}
    -keep class androidx.viewpager2.widget.**{*;}

Copyright 2017-2020 zhpanvip

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.