Android 代码写布局

 RelativeLayout relativeLayout = new RelativeLayout(this);
            relativeLayout.setId(R.id.num_layout);
            relativeLayout.setBackgroundColor(R.color.black);
            relativeLayout.setLayoutParams(new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
            
           //实例化一个TextView控件和设置属性
            TextView textView = new TextView(this);
            textView.setId(R.id.num_textview);
            textView.setTextSize(18);
            textView.setTextColor(getResources().getColor(R.color.white));
            String txt = "1 / 1";
            textView.setText(txt);
            textView.setGravity(Gravity.CENTER);
            //给TextView添加位置布局
            RelativeLayout.LayoutParams textLayout = new RelativeLayout.LayoutParams(
                    RelativeLayout.LayoutParams.WRAP_CONTENT,
                    RelativeLayout.LayoutParams.WRAP_CONTENT);
            textLayout.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
            textLayout.addRule(RelativeLayout.CENTER_HORIZONTAL);
            textLayout.setMargins(0,0,0,15);
            //加入到RelativeLayout的布局里
            relativeLayout.addView(textView, textLayout);
            
            //实例化一个ImageView控件
            ImageView imageView = new ImageView(this);
           //给ImageView控件添加布局位置信息
            RelativeLayout.LayoutParams imageViewLayout = new RelativeLayout.LayoutParams(
                    RelativeLayout.LayoutParams.MATCH_PARENT,
                    RelativeLayout.LayoutParams.MATCH_PARENT);
            imageViewLayout.addRule(RelativeLayout.ABOVE, textView.getId());
            imageViewLayout.addRule(RelativeLayout.CENTER_IN_PARENT);
            relativeLayout.addView(imageView, imageViewLayout);

            

最后在代码中引用布局的地方，引入relativeLayout就好了

以上代码效果图为：