代码实现RelativeLayou位置属性。
val layout = RelativeLayout(context)
val layoutParam =
RelativeLayout.LayoutParams(imgWidth, height)
layout.layoutParams = layoutParam
val text = TextView(context)
val textParams = RelativeLayout.LayoutParams(imgWidth, 80)
text.layoutParams = textParams
//设置textview在reltive布局中的rule,位置布局底部
textParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM)
//将text加到relative里面
layout.addView(text, textParams)