How to upload image in ImageView with quality?

Hello, I'm a beginner in android programming I'm developing an application that loads images from the user or camera gallery. After selecting the image I use a CropIntent to crop the image. The problem is that I can not scale the image to fit in ImageView, besides the image loses considerably the quality.

ImageView Xml:

<ImageView
    android:id="@+id/ImageView"
    android:layout_width="fill_parent"
    android:layout_height="498dp"
    android:layout_below="@+id/toolbar"
    tools:layout_editor_absoluteX="11dp"
    tools:layout_editor_absoluteY="61dp" />

This is the method I'm using to crop the image (Same method for camera and for gallery images):

private void CropImage() {

    try{
        CropIntent = new Intent("com.android.camera.action.CROP");
        CropIntent.setDataAndType(uri,"image/*");

        CropIntent.putExtra("crop","true");
        CropIntent.putExtra("outputX",400);
        CropIntent.putExtra("outputY",400);
        CropIntent.putExtra("aspectX",3);
        CropIntent.putExtra("aspectY",4);
        CropIntent.putExtra("scaleUpIfNeeded",true);
        CropIntent.putExtra("return-data",true);

        startActivityForResult(CropIntent,1);
    }
    catch (ActivityNotFoundException ex)
    {

    }