Android向viewpager添加了圆形指示器

Question

这个问题在这里已经有了答案:

Android ViewPager with bottom dots (10 个回答)

关闭 6年前。

您好，我创建了一个 View 寻呼机，但有谁知道我如何在页面 View 上显示代表分页的圆圈，我认为它是一个指标，但我不完全确定？

这是迄今为止包含我的 View 寻呼机的代码

public class LevelSelect extends Activity {

    private ViewPager awesomePager;
    private static int NUM_AWESOME_VIEWS = 10;
    private Context cxt;
    private AwesomePagerAdapter awesomeAdapter;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_levelselect);
        cxt = this;

        awesomeAdapter = new AwesomePagerAdapter();
        awesomePager = (ViewPager) findViewById(R.id.viewpager);
        awesomePager.setAdapter(awesomeAdapter);
    }

    private class AwesomePagerAdapter extends PagerAdapter{


        @Override
        public int getCount() {
            return NUM_AWESOME_VIEWS;
        }


        @Override
        public Object instantiateItem(View collection, int position) {

            LayoutInflater mLayoutInflater = (LayoutInflater) collection.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            final View LeagueButtonView = mLayoutInflater.inflate(R.layout.ls_button, null);
            Button LeagueButton = (Button) LeagueButtonView.findViewById(R.id.league);
            LeagueButton.setBackgroundDrawable(getResources().getDrawable(R.drawable.ls_level_eng1_locked));
            ((ViewPager) collection).addView(LeagueButtonView,0);

            return LeagueButtonView;
        }


        @Override
        public void destroyItem(View collection, int position, Object view) {
            ((ViewPager) collection).removeView((View) view);
        }



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


        @Override
        public void finishUpdate(View arg0) {}


        @Override
        public void restoreState(Parcelable arg0, ClassLoader arg1) {}

        @Override
        public Parcelable saveState() {
            return null;
        }

        @Override
        public void startUpdate(View arg0) {}

    }

Answer 1

您可以使用 Jake Wharton 的 ViewPagerIndicator 为 ViewPager 中的每个选项卡添加标题或简单的圆圈。

Jake Wharton 在 GitHub 上提供了一堆示例代码，也可以引用usage section在 Jake Wharton 的网站上。

您也可以使用 Greendroid library 的 ViewPager 和 PageIndicator