TextView,Button的DrawableLeft,,Right 使用代码动态的设置

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Xml文件中设置相信大家都已经非常的熟悉了.

            <TextView                android:id="@+id/register_zone"                android:layout_width="wrap_content"                android:layout_height="match_parent"                android:drawableRight="@mipmap/lbs_arrow_down"/>

使用代码设置DrawableLeft,Right

第一种方案

                Drawable drawable = UIUtils.getDrawable(R.mipmap.up_arrow);                // 确定drawable的位置                drawable.setBounds(0, 0, drawable.getMinimumWidth(), drawable.getMinimumHeight());                mRegisterZone.setCompoundDrawables(null, null, drawable, null);setCompoundDrawables 画的drawable的宽高是按drawable.setBound()设置的宽高，所以才有The Drawables must already have had setBounds(Rect) called.使用之前必须使用Drawable.setBounds设置Drawable的长宽。`

第二种方案

setCompoundDrawablesWithIntrinsicBounds(null, null, UIUtils.getDrawable(R.mipmap.up_arrow), null);setCompoundDrawablesWithIntrinsicBounds是画的drawable的宽高是按drawable固定的宽高，所以才有The Drawables' bounds will be set to their intrinsic bounds.即通过getIntrinsicWidth()与getIntrinsicHeight()获得，

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