ViewPager

最新推荐文章于 2025-09-23 11:09:42 发布
原创最新推荐文章于 2025-09-23 11:09:42 发布 · 209 阅读
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public class StartActivity extends Activity implements View.OnClickListener
{

    private ViewPager mViewPager;
    private CustomPageIndicator mPageIndicator;
    private int lastPosition = 0;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        // 设置全屏
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_start);
        
        initViewPager();
         findViewById(R.id.tv_start_go).setOnClickListener(this);
        
    }
    
    private void initViewPager()
    {
        mViewPager = (ViewPager) findViewById(R.id.introduction_viewpager);
        mViewPager.setOffscreenPageLimit(1);
        mViewPager.setOnPageChangeListener(getOnPageChangeListener());

        mPageIndicator = (CustomPageIndicator) findViewById( R.id.introduction_page_indicator);
        mPageIndicator.setPageCount(3);
        mPageIndicator.setSelectedDrawable(getResources().getDrawable(R.drawable.guid_point_selected));
        mPageIndicator.setUnSelectedDrawable(getResources().getDrawable(R.drawable.guid_point_normal));
        mPageIndicator.setPageMargin(20);
        mPageIndicator.initView();

        ArrayList<View> pageList = new ArrayList<View>();
        View view = View.inflate(this, R.layout.activity_first_welcome_login_normal, null);
        ((ImageView) view.findViewById(R.id.iv_user_guide_bg)).setImageResource(R.drawable.guide1_1);
        pageList.add(view);

        view = View.inflate(this, R.layout.activity_first_welcome_login_normal, null);
        ((ImageView) view.findViewById(R.id.iv_user_guide_bg))
            .setImageResource(R.drawable.guide1_2);
        pageList.add(view);
        
        view = View.inflate(this, R.layout.activity_first_welcome_login_normal, null);
        ((ImageView) view.findViewById(R.id.iv_user_guide_bg))
                .setImageResource(R.drawable.guide1_3);
        pageList.add(view);
        
        CustomPageAdapter imageAdapter = new CustomPageAdapter(pageList);
        mViewPager.setAdapter(imageAdapter);
        mViewPager.setCurrentItem(0);
        
        mPageIndicator.setPageSelectedIndex(0);

    }

    @NonNull
    private ViewPager.OnPageChangeListener getOnPageChangeListener() {
            return new ViewPager.OnPageChangeListener() {
                    @Override
                    public void onPageScrolled(int i, float v, int i1) {

                    }

                    @Override
                    public void onPageSelected(int position) {
                        mPageIndicator.setPageSelectedIndex(position);
                        updateBtnStatus(position);
                        lastPosition = position;
                    }

                    @Override
                    public void onPageScrollStateChanged(int position) {

                    }
            };
    }

    private void updateBtnStatus(int position)
    {
        switch (position)
        {
            case 2:
                if (position < lastPosition)
                {

                }
                break;
            case 3:

                break;

            default:
                break;
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.tv_start_go:
                startActivity(new Intent(StartActivity.this, MenuActivity.class));

                break;
        }
    }


}