android-“ ScaleType:FIT_XY”不会拉伸图库中的图像

我有一个横向模式的图库,其中包含很多带有imageadapter的图像.我希望图像水平延伸到整个屏幕,并保持纵横比并根据需要垂直延伸.
我尝试使用FIT_XY,它在水平方向上不适合,但不能垂直保持比例(图像被压碎)
我怎样才能做到这一点?这是自定义图像适配器:

    public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
int counter = 0;

private final Context mContext;

public String[] mImageIds;

public ImageAdapter(Context c) {
    mContext = c;
    TypedArray a = c.obtainStyledAttributes(R.styleable.Gallery1);
    mGalleryItemBackground = a.getResourceId(R.styleable.Gallery1_android_galleryItemBackground, 0);
    a.recycle();
}

public void insert(String string) {
    mImageIds[counter] = string;
    counter++;
}

@Override
public int getCount() {
    return mImageIds.length;
}

@Override
public Object getItem(int position) {
    return position;
}

@Override
public long getItemId(int position) {
    return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ImageView i = new ImageView(mContext);

    i.setImageBitmap(BitmapFactory.decodeFile(mImageIds[position]));
    i.setLayoutParams(new Gallery.LayoutParams(WindowManager.LayoutParams.FILL_PARENT, WindowManager.LayoutParams.FILL_PARENT));
    i.setScaleType(ImageView.ScaleType.MATRIX);
    i.setBackgroundResource(mGalleryItemBackground);

    return i;
}

}

解决方法:

当我在android中执行此操作时,我使用了fit缩放比例(fitCenter,fitStart,fitEnd)以及Adjust视图范围,xml属性将是例如

android:scaleType="fitCenter" android:adjustViewBounds="true" 
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