Java代码添加RadioButton

• xml:

       
               ... ...
       
  

• java:
  final int tabNum = 3;
  tabLayout = findViewById(R.id.lay_tab);
  RadioGroup.LayoutParams params = new RadioGroup.LayoutParams(org.xclcharts.common.DensityUtil.getScreenWidth(_context) / tabNum, ViewGroup.LayoutParams.WRAP_CONTENT);
  params.gravity = Gravity.CENTER;
  for (int i = 0; i < tabNum; i++) {
  final RadioButton rb1 = new RadioButton(_context);
  rb1.setBackgroundResource(android.R.color.transparent);
  rb1.setButtonDrawable(android.R.color.transparent);
  rb1.setLayoutParams(params);
  rb1.setGravity(Gravity.CENTER);
  // 文本颜色选择,引用res-xml
  ColorStateList csl = getResources().getColorStateList(R.color.color_menu_text);
  if (csl != null) {
  rb1.setTextColor(csl);
  }
  rb1.setTextSize(TypedValue.COMPLEX_UNIT_SP, 11);
  StateListDrawable listDrawable = new StateListDrawable();
  switch (i) {
  case 0:
  rb1.setText(R.string.home);
  listDrawable = (StateListDrawable) getResources().getDrawable(R.drawable.selector_home);
  break;
  case 1:
  rb1.setText(R.string.school);
  listDrawable = (StateListDrawable) getResources().getDrawable(R.drawable.selector_work);
  break;
  case 2:
  rb1.setText(R.string.mine);
  listDrawable = (StateListDrawable) getResources().getDrawable(R.drawable.selector_user);
  break;
  }

       final int finalI = i;
       rb1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
           @Override
           public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
               if (b) {
                   if (finalI == 1 && !MainApplication.isLogin()) {
                       //处理学院未登录点击
                       SharedPreferences sp = getSharedPreferences("XueXi", MODE_PRIVATE);
                       SharedPreferences.Editor edit = sp.edit();
                       edit.putString("xuexi", "1");
                       edit.putString("pdhome", "110");
                       edit.commit();
                       Intent in = new Intent();
                       in.setClass(_context, LoginActivity.class);
                       startActivity(in);
                   } else {
                       showFragment(fragments.get(finalI), "fragment" + finalI);
                       curIndex = finalI;
                   }
               }
           }
       });
       setRbDrawable(rb1, listDrawable);
       tabLayout.addView(rb1);
   }