时间：2020-11-05 17:47:42 | 栏目：Android代码 | 点击：次
实例如下：
WindowManager wm = (WindowManager) getContext()
.getSystemService(Context.WINDOW_SERVICE);
int width = wm.getDefaultDisplay().getWidth();
int height = (int) (width - 22*density) / 3;
LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) mLinearLayoutTrafficControl.getLayoutParams();
lp.height = height;
LinearLayout.LayoutParams lp2 = (LinearLayout.LayoutParams) mLinearLayoutTrafficControl2.getLayoutParams();
lp2.height = height;
LinearLayout.LayoutParams lp3 = (LinearLayout.LayoutParams) mLinearLayoutTrafficServicesBusinessOnline.getLayoutParams();
lp3.height = height;
注解：先获取屏幕宽度，通过屏幕宽度获取布局的高度。
density：是默认密度 private float density = 1.5f;