android 获取View的高度

//获取view 的宽度,单位像素View view=findViewById(R.id.leftBtn);int swidth = this.getWindowManager().getDefaultDisplay().getWidth();  int w = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); int h = View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED); view.measure(w, h);int backW=view.getMeasuredWidth();