获取Assets目录下的图片并显示

 package com.jingle.getlocal;

 import java.io.InputStream;

 import android.app.Activity;
 import android.content.res.AssetManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;

 import android.os.Bundle;
 import android.widget.ImageView;

 public class MainActivity extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         initImg();

     }

     private void initImg() {
         ImageView img = (ImageView) findViewById(R.id.img);
         img.setImageBitmap(getImg("orca.jpg"));//assets目录下文件名
     }
     //获取图片的Bitmap对象
     private Bitmap getImg(String file) {
         Bitmap bmp = null;
         //获取AssetsMng对象
         AssetManager am = getResources().getAssets();
         try {
             //打开文件,返回输入流
             InputStream is = am.open(file);
             //Bitmap工厂解码输入流,得到bmp对象
             bmp = BitmapFactory.decodeStream(is);
             is.close();
         } catch (Exception e) {
             e.printStackTrace();
         }
         return bmp;
     }

 }