查看寻呼机 - 如何在其上放置固定按钮

在我的Android应用程序中,我有一个视图寻呼机,本质上是一个幻灯片放映的图片.这些图片是5个不同片段的背景图片

我想在它上面放两个按钮,这些按钮保持固定在屏幕上.我怎样才能做到这一点？

public class WhatIsThis extends SherlockFragmentActivity {

    private static final int NUM_PAGES = 5;
    private ViewPager mPager;
    private PagerAdapter mPagerAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.welcome_slides_view_pager);

        // Instantiate a ViewPager and a PagerAdapter.
        mPager = (ViewPager) findViewById(R.id.pager);
        mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
        mPager.setAdapter(mPagerAdapter);
    }

    @Override
    public void onBackPressed() {
        if (mPager.getCurrentItem() == 0) {
            super.onBackPressed();
        } else {

            mPager.setCurrentItem(mPager.getCurrentItem() - 1);
        }
    }


    private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
        public ScreenSlidePagerAdapter(FragmentManager fragmentManager) {
            super(fragmentManager);
        }


        @Override
        public SherlockFragment getItem(int position) {
            if(position == 1) {
                return new WelcomeSlideFragmentA();
            } else if (position == 2) {
                return new WelcomeSlideFragmentB();
            } else if (position == 3) {
                return new WelcomeSlideFragmentC();
            } else if (position == 4) {
                return new WelcomeSlideFragmentD();
            } else {
                return new WelcomeSlideFragmentE();
            }
        }

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

}

welcome_slides_view_pager.xml:

Quentin G... 15

您可以使用以下命令替换welcome_slides_view_pager.xml的内容:

这样你就可以在你的viewpager上有两个固定的按钮(我已将它们放置为使用它们作为视图寻呼机的下一页和上一页,我想这就是你想要做的).