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;
    }

}