Android TextView setcompounddrawables 图片不显示的问题

在代码中可以设置Drawable显示在text的左、上、右、下位置，有如下两个方法：

setCompoundDrawables(left, top, right, bottom)
setCompoundDrawablesWithIntrinsicBounds(left, top, right, bottom)

1、setCompoundDrawables(left, top, right, bottom)

drawable的宽高是按drawable.setBound()设置的宽高，

Sets the Drawables (if any) to appear to the left of, above, to the right of, and below the text. Use {@code null} if you do not want a Drawable there. The Drawables must already have had {@link Drawable#setBounds} called.

使用之前必须使用Drawable.setBounds设置Drawable的长宽。

2、setCompoundDrawablesWithIntrinsicBounds(left, top, right, bottom)

drawable的宽高是按drawable固定的宽高，

Sets the Drawables (if any) to appear to the left of, above, to the right of, and below the text. Use {@code null} if you do not want a Drawable there. The Drawables’ bounds will be set to their intrinsic bounds.

即通过getIntrinsicWidth()与getIntrinsicHeight()获得，

直接使用setCompoundDrawablesWithIntrinsicBounds代替setCompoundDrawables 在Java代码中使用就可以正常显示。