Example usage for android.support.v4.view PagerAdapter PagerAdapter

Introduction

In this page you can find the example usage for android.support.v4.view PagerAdapter PagerAdapter.

Prototype

PagerAdapter

Source Link

Usage

From source file:com.wewow.MainActivity.java

private void setUpViewPagerBanner(final List<Banner> banners) {

    group = (ViewGroup) findViewById(R.id.viewGroup);

    LayoutInflater inflater = getLayoutInflater();

    pageview = new ArrayList<View>();
    for (int i = 0; i < banners.size(); i++) {

        View view = inflater.inflate(R.layout.banner_item, null);
        ImageView imageBanner = (ImageView) view.findViewById(R.id.imageViewIcon);
        TextView textViewBannerTitle = (TextView) view.findViewById(R.id.textViewBannerTitle);
        textViewBannerTitle.setText(banners.get(i).getTitle());
        Glide.with(context).load(banners.get(i).getImage()).placeholder(R.drawable.banner_loading_spinner)
                .crossFade(300).into(imageBanner);
        view.setClickable(true);/*from  w w  w. j ava  2s .c  o m*/
        view.setFocusable(true);
        view.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus) {
                    AppBarLayout.LayoutParams mParams = (AppBarLayout.LayoutParams) mAppBarLayout.getChildAt(0)
                            .getLayoutParams();
                    mParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_EXIT_UNTIL_COLLAPSED
                            | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
                } else {

                    AppBarLayout.LayoutParams mParams = (AppBarLayout.LayoutParams) mAppBarLayout.getChildAt(0)
                            .getLayoutParams();
                    mParams.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL
                            | AppBarLayout.LayoutParams.SCROLL_FLAG_EXIT_UNTIL_COLLAPSED
                            | AppBarLayout.LayoutParams.SCROLL_FLAG_SNAP);
                }
            }
        });

        pageview.add(view);
        final int j = i;
        view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Banner banner = banners.get(j);
                String type = banner.getType();
                if (type.equals(CommonUtilities.BANNER_TYPE_SUBJECT)) {
                    Intent intent = new Intent(MainActivity.this, SubjectActivity.class);
                    intent.putExtra("id", banner.getId());
                    startActivity(intent);

                } else if (type.equals(CommonUtilities.BANNER_TYPE_COLLECTION)) {
                    LabCollection lc = new LabCollection();
                    lc.image = banner.getImage();
                    lc.title = banner.getTitle();
                    lc.id = Long.parseLong(banner.getId());
                    Intent intent = new Intent(MainActivity.this, LifeLabItemActivity.class);
                    intent.putExtra(LifeLabItemActivity.LIFELAB_COLLECTION, lc);

                    startActivity(intent);
                } else if (type.equals(CommonUtilities.BANNER_TYPE_POST)) {
                    Intent intent = new Intent(MainActivity.this, LifePostActivity.class);
                    intent.putExtra(LifePostActivity.POST_ID, Integer.parseInt(banner.getId()));
                    startActivity(intent);
                } else {
                    Intent intent = new Intent(MainActivity.this, WebPageActivity.class);
                    intent.putExtra("url", banner.getUrl());
                    startActivity(intent);

                }
            }
        });
    }

    group.removeAllViews();
    //
    imageViews = new ImageView[pageview.size()];
    for (int i = 0; i < pageview.size(); i++) {
        imageView = new ImageView(MainActivity.this);
        imageView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT));
        imageView.setPadding(12, 0, 12, 0);
        imageViews[i] = imageView;

        //
        if (i == 0) {
            imageViews[i].setBackgroundResource(R.drawable.dot_b);
        } else {
            imageViews[i].setBackgroundResource(R.drawable.dot);
        }

        group.addView(imageViews[i]);
    }

    PagerAdapter mPagerAdapter = new PagerAdapter() {

        @Override

        public int getCount() {
            // TODO Auto-generated method stub
            return pageview.size();
        }

        @Override

        public boolean isViewFromObject(View arg0, Object arg1) {
            // TODO Auto-generated method stub
            return arg0 == arg1;
        }

        public void destroyItem(View arg0, int arg1, Object arg2) {
            ((ViewPager) arg0).removeView(pageview.get(arg1));
        }

        public Object instantiateItem(View arg0, int arg1) {
            ((ViewPager) arg0).addView(pageview.get(arg1));
            return pageview.get(arg1);
        }

    };

    //set adapter
    viewPager.setAdapter(mPagerAdapter);
    if (Build.VERSION.SDK_INT >= 21) {
        viewPager.setNestedScrollingEnabled(false);
    }

    //set page change listener
    viewPager.setOnPageChangeListener(new GuidePageChangeListener());

}