Question

我正在尝试使用viewPager在android中的Bottom Navigation Bar中创建图片滑块。我想将GIF图像加载到viewPager但它无法正常工作。如果有可能请告诉我它是如何可能的这是我的xml代码。

<FrameLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".HomeFragment">

    <!-- TODO: Update blank fragment layout -->

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="60dp"
        android:paddingTop="60dp">

       <android.support.v4.view.ViewPager
               android:id="@+id/mainviewPager1"
               android:layout_width="match_parent"
               android:layout_height="200dp"
               android:layout_alignParentLeft="true" />


 </LinearLayout>

</FrameLayout>

这是我的HomeFragment类，我将viewPager添加到片段中。

public class HomeFragment extends Fragment 
{
        ViewPager viewPager;

        public HomeFragment()
        {
            // Required empty public constructor
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
           View v = inflater.inflate(R.layout.fragment_home, container,false);

            viewPager = (ViewPager) v.findViewById(R.id.mainviewPager1);
            // Inflate the layout for this fragment

           ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter(getContext());
            viewPager.setAdapter(viewPagerAdapter);

            }

            return v;
    }

这是我的viewPagerAdaper.java代码。

public class ViewPagerAdapter extends PagerAdapter
{
    Context context;
    LayoutInflater layoutInflater;
    Integer[] images={R.drawable.fimage,R.drawable.simage,R.drawable.timage};

    public ViewPagerAdapter(Context context) {
        this.context = context;
    }

    @Override
    public int getCount()
    {
        return images.length;
    }

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

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        layoutInflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view=layoutInflater.inflate(R.layout.custom_layout,null);

        ImageView imageView=(ImageView)view.findViewById(R.id.customimageView2);
        imageView.setImageResource(images[position]);

        ViewPager vp=(ViewPager) container;
        vp.addView(view,0);
        return view;

    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        ViewPager vp=(ViewPager) container;
        View v=(View) object;
        vp.removeView(v);
    }
}

Answer 1

ImageView不支持GIF格式，如果您想处理GIF图片，可以使用此库https://github.com/koral--/android-gif-drawable并在pl.droidsonroids.gif.GifImageView内添加custom_layout.xml。

将ImageView替换为GifImageView

如何在android中的viewPager中添加GIF图像

1 个答案: