Button button = new Button(this); FrameLayout frameLayout = getWindow().getDecorView().findViewById(android.R.id.content); frameLayout.addView(button); FrameLayout.LayoutParams layout= (FrameLayout.LayoutParams) button.getLayoutParams(); layout.setMargins(100,120,0,0); layout.width = 200; layout.height = 200; button.setLayoutParams(layout);
添加一个Button,修改其高度、宽度、以及位置。