1、XML方式
- <Button android:drawableLeft="@drawable/btn_strip_mark_on"></Button>
2、JAVA代码
Drawable img_on, img_off;
Resources res = getResources();
img_off = res.getDrawable(R.drawable.btn_strip_mark_off);
// 调用setCompoundDrawables时,必须调用Drawable.setBounds()方法,否则图片不显示
img_off.setBounds(0, 0, img_off.getMinimumWidth(), img_off.getMinimumHeight());
btn.setCompoundDrawables(img_off, null, null, null); //设置左图标
setBounds()的作用