动态控制控件大小

android中我们需要动态控制控件大小，可以设置控件的LayoutParams。

ImageView imageView = new ImageView(this);LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);layoutParams.setMargins(30, 20, 30, 0);//设置left,top,right, bottomimageView.setLayoutParams(layoutParams);