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;

    

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