解决Bitmap通过getWidth和getHeight获取尺寸不符的问题

public class MainActivity extends Activity {
 TextView tv_wl;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 tv_wl=(TextView)findViewById(R.id.tv_wl);
 Bitmap bm1=BitmapFactory.decodeResource(getResources(), R.drawable.img);
 int bm_width=bm1.getWidth();
 int bm_height=bm1.getHeight();
 tv_wl.setText("width="+bm_width+";  height="+bm_height);
 } 
}

BitmapFactory.Options bfoOptions = new BitmapFactory.Options();
 bfoOptions.inScaled = false; 
 Bitmap img1 = BitmapFactory.decodeResource(getResources(), R.drawable.img, bfoOptions);
 int bm_width=img1.getWidth();
 int bm_height=img1.getHeight();

package com.example.vidarecyclerviewstagger;
public class ImageData {
  private int resourceId;
  private int height;
  private int width;

  public ImageData(int resourceId,int height,int width){
    this.resourceId = resourceId;
    this.height = height;
    this.width = width;
  }

  public int getResourceId() {
    return resourceId;
  }

  public void setResourceId(int resourceId) {
    this.resourceId = resourceId;
  }

  public int getHeight() {
    return height;
  }

  public void setHeight(int height) {
    this.height = height;
  }

  public int getWidth() {
    return width;
  }

  public void setWidth(int width) {
    this.width = width;
  }
}

private static int[] imgRes = new int[]{R.drawable.img1,R.drawable.img2,R.drawable.img3,R.drawable.img4,
    R.drawable.img5,R.drawable.img6,R.drawable.img7,R.drawable.img8,
    R.drawable.img9,R.drawable.img10,R.drawable.img11,R.drawable.img12,
    R.drawable.img13,R.drawable.img14,R.drawable.img15,R.drawable.img16};

private ArrayList<ImageData> mData = new ArrayList<>();

public void InitData(){
  for(int i = 0;i < imgRes.length;i++){
    BitmapFactory.Options options = new BitmapFactory.Options();
    BitmapFactory.decodeResource(getResources(),imgRes[i],options);

    //获取图片的宽高
    int height = options.outHeight;
    int width = options.outWidth;

    Log.i("YYYY","图片的宽度:"+width+"图片的高度:"+height);
    ImageData imgData = new ImageData(imgRes[i],height,width);
    mData.add(imgData);
  }
}

BitmapFactory.Options options = new BitmapFactory.Options();
BitmapFactory.decodeResource(getResources(),imgRes[i],options);

//获取图片的宽高
int height = options.outHeight;
int width = options.outWidth;