android - 继承LinearLayout，如何确定重力是LEFT还是RIGHT

Question

我正在子类化 LinearLayout。在子类中我无法弄清楚如何获得重力值。我只是想确定在 xml 布局中设置的重力是 Gravity.LEFT 还是 Gravity.RIGHT

在此先感谢您的帮助。

Answer 1

尝试从父布局参数中获取引力:

int gravity = ((LinearLayout.LayoutParams)((LinearLayout)childView.getParent()).getLayoutParams()).gravity;
if(gravity == Gravity.LEFT){
   // write your code when parent gravity is left           
}else if(gravity == Gravity.RIGHT){
   // write your code when parent gravity is right           
}else if(gravity == (Gravity.LEFT | Gravity.CENTER_VERTICAL)){
  // write your code when parent gravity is left with center vertical
else{
  // write your code when parent gravity is neither right nor left.
}