android------引导页两种实现方式(原生和WebVie

2019-11-14  本文已影响0人  切切歆语

有的App当你第一次打开的是和常常会有引导页来描述一些App信息(功能,特点),当然也要做验证,验证第二次进入不进入引导页,直接进入App,此博客借助ViewPager来实现引导页, ViewPager类提供了多界面切换的新效果,是谷歌在3.0之后加入的新特性,所以需要引用android.support.v4.view.ViewPager。

效果:

image
public class NativeActivity extends AppCompatActivity {


    private ViewPager viewPager;
    private List<View> listImg;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //将屏幕设置为全屏
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_ys);
        initView();
    }


    private void initView() {
        viewPager = (ViewPager) findViewById(R.id.viewpager);
        viewPager.setAdapter(new ViewPagerAdapter(getSupportFragmentManager(), showView()));
        listImg = new ArrayList<View>();
        listImg.add(findViewById(R.id.y1));
        listImg.add(findViewById(R.id.y2));
        listImg.add(findViewById(R.id.y3));
        viewPager.setOnPageChangeListener(showPageChange);
    }


    ViewPager.OnPageChangeListener showPageChange = new ViewPager.OnPageChangeListener() {

        @Override
        public void onPageSelected(int arg0) {
            for (int i = 0; i < listImg.size(); i++) {
                if (i == arg0) {
                    listImg.get(arg0).setBackgroundResource(R.drawable.y_focused);
                } else {
                    listImg.get(i).setBackgroundResource(R.drawable.y_normal);
                }
            }
        }

        @Override
        public void onPageScrolled(int arg0, float arg1, int arg2) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onPageScrollStateChanged(int arg0) {
            // TODO Auto-generated method stub

        }
    };




    private List<Fragment> showView() {
        List<Fragment> listView = new ArrayList<Fragment>();
        listView.add(new Fragment1());
        listView.add(new Fragment2());
        listView.add(new Fragment3());
        return listView;
    }
}

由于代码太多,完整代码未给出,源码直接下载即可

源码点击下载:https://github.com/DickyQie/android-boot-page**

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