Android : Set Wallpaper with bitmap avoid crop and set fit center

I'm trying to make a Wallpaper Application. And I had big trouble during set wallpaper with bitmap. I try to figure out answer for a week.

I want to set Bitmap in to wallpaper like

1. avoid crop


2. scaleType:fit_center(align center vertical, bitmap's width is strech to full, aspect ratio)

How can I make it?

P.S. And I found that maybe I can use Bitmap.createBitmap, but my try was failed over and over. I have no idea that I should use only WallPaperManager or both Bitmap.createBitmp Too.

static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, Matrix m, boolean filter)

    public void setScreenBitmap(final Bitmap bitmapInputed)
{

    final WallpaperManager wpm = WallpaperManager.getInstance(myContext);

    final Display display = ((Activity) this.myContext).getWindowManager().getDefaultDisplay();

    Point size = new Point();
    display.getSize(size);
    int width = size.x;
    int height = size.y; 


    try 
    {
        wpm.setBitmap(Bitmap.createScaledBitmap(bitmapInputed, width, height, true));
    }
    catch (IOException e) 
    {
        Log.e(TAG+".setScreenBitmap", e.toString());
        e.printStackTrace();
    }
    wpm.setWallpaperOffsetSteps(1.0f, 1.0f);

    wpm.suggestDesiredDimensions(width, height);

}