setScaleType to ScaleType.MATRIX programmatically not work but in xml it work

问题

this is my code :

    LinearLayout imageViewParent = (LinearLayout) findViewById(R.id.imageViewParent);
    ImageView view = new ImageView(this);
    imageViewParent.addView(view);
    view.setScaleType(ScaleType.MATRIX);
    view.setBackgroundResource(R.drawable.np);

In this code scale type to matrix not work(it fix image to parents),but when I implement this in xml it works fine! can every one help me? thank you!

回答1:

You should use setImageResource not setBackgroundResource.

回答2:

Use this:

view.setImageResource(R.drawable.np);

来源：https://stackoverflow.com/questions/18952656/setscaletype-to-scaletype-matrix-programmatically-not-work-but-in-xml-it-work