import android.content.Context;import android.graphics.Canvas;import android.graphics.drawable.PictureDrawable;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.view.View;import android.view.ViewGroup;import com.bumptech.glide.Glide;import com.larvalabs.svgandroid.SVG;import com.larvalabs.svgandroid.SVGBuilder;import java.io.IOException;import java.util.ArrayList;import uk.co.senab.photoview.PhotoView;class ViewPagerAdapter extends PagerAdapter { private Context context; private ArrayList<String> images; private Canvas canvas = new Canvas(); public ViewPagerAdapter(Context context, ArrayList<String> images) { this.context = context; this.images = images; } @Override public int getCount() { return images.size(); } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } @Override public Object instantiateItem(ViewGroup container, int position) { View view = View.inflate(context, R.layout.view_pager_item, null); PhotoView photoView = (PhotoView) view.findViewById(R.id.photoview); //注意 一定要加這行代碼,不然會加載不出來 photoView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); //拿到圖片的url String url = images.get(position); //因為我要顯示所有圖片進行瀏覽 所以我用后綴名進行區分 if (url.endsWith(".svg")) {  try {  //獲取assets目錄下的svg圖片的相對路徑  String replaceUrl = url.replace("file:///android_asset/", "");  SVG svg = new SVGBuilder().readFromAsset(context.getAssets(), replaceUrl).build();  canvas.drawPicture(svg.getPicture());  //github上的svg.createDrawable()沒有了,現在只有這個方法  PictureDrawable drawable = svg.getDrawable();  drawable.draw(canvas);  photoView.setImageDrawable(drawable);  } catch (IOException e) {  e.printStackTrace();  } } else {  //用Glide加載圖片  Glide.with(context).load(url).into(photoView); } container.addView(view, ViewPager.LayoutParams.MATCH_PARENT, ViewPager.LayoutParams.MATCH_PARENT); return view; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); }}