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  • PagerAdapter 普通写法

    1,viewPagre的普通写法

    public ImagePagerAdapter(Context context, List<Photo> imgList) {
    this.mContext = context;
    }

    private void createImageViews() {
    for (int i = 0; i < 4; i++) {
    PhotoView imageView = new PhotoView(mContext);
    imageView.enable();
    imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
    imageView.setMaxScale(2);
    imageView.setImageResource(R.color.atlas_bgc);
    viewList.add(imageView);
    }
    }

    @Override
    public int getCount() {
    return mImgList == null ? 0 : mImgList.size();
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
    return view == object;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
    if(object instanceof PhotoView){
    PhotoView view = (PhotoView)object;
    view.enable();
    view.setScaleType(ImageView.ScaleType.FIT_CENTER);
    view.setMaxScale(2);
    view.setImageResource(R.color.atlas_bgc);
    viewList.add(view);
    container.removeView(view);
    }
    }

    @Override
    public Object instantiateItem(ViewGroup container, final int position) {
    final PhotoView currentView = viewList.remove(0);
    final Photo image = mImgList.get(position);
    container.addView(currentView);
    if(!TextUtils.isEmpty(image.getPath())){
    Glide.with(mContext).load(new File(image.getPath()))
    .diskCacheStrategy(DiskCacheStrategy.NONE).into(currentView);
    }

    currentView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
    if (mListener != null) {
    mListener.onItemClick(position, image);
    }
    }
    });
    return currentView;
    }
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  • 原文地址:https://www.cnblogs.com/dubo-/p/7724516.html
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