缩小大图片的面积

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView jpgName = (TextView)findViewById(R.id.jpgname);
        ImageView jpgView = (ImageView)findViewById(R.id.jpgview);
        
        String myJpgPath = "/sdcard/DSC_3509.JPG"; //UPDATE WITH YOUR OWN JPG FILE
        
        jpgName.setText(myJpgPath);
        
        BitmapFactory.Options options = new BitmapFactory.Options();
  options.inSampleSize = 2;
  Bitmap bm = BitmapFactory.decodeFile(myJpgPath, options);
  jpgView.setImageBitmap(bm); 
    } BitmapFactory.Options options = new BitmapFactory.Options();
  options.inSampleSize = 2;

主要是这两个