问题
How to add image(left) and text on button?
For illustration:

回答1:
use android:drawableLeft="@drawable/image"
in your layout xml
you can also do this from code
Drawable icon= getContext().getResources().getDrawable( R.drawable.image);
button.setCompoundDrawablesWithIntrinsicBounds( icon, null, null, null );
回答2:
We can also manage the size of drawable while doing programmatically
Drawable dr = getResources().getDrawable(R.drawable.mag_green);
dr.setBounds(0, 0, 43, 40); //Left,Top,Right,Bottom
search_bar.setCompoundDrawables(dr, null , null , null);
回答3:
android:text="Documentos"
android:drawableLeft= "@drawable/ic_document"
来源:https://stackoverflow.com/questions/17258386/how-to-add-imageleft-and-text-on-button