往RadioGroup中动态添加RadioButton

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由于项目中经常要动态添加单选按钮,遇到了一些坑所以记录下
添加radiobutton到radiogroup中

for (int i = 0; i < 10; i++) {
 
    RadioButton newRadio = new RadioButton(getApplicationContext());
    newRadio.setText(i+"");
    newRadio.setTextColor(Color.BLACK);
    newRadio.setTextSize(14);
    newRadio.setButtonDrawable(null);//设置自带的背景为null,如果需要自定义样式的话需要设置这个属性

Android4.4会出现设置无效需要设置这个属性
    

if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
        try {
            Field field = newRadio.getClass().getSuperclass().getDeclaredField("mButtonDrawable");
            field.setAccessible(true);
            field.set(newRadio, null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

自定义选择图片设置图片位置
  

  newRadio.setCompoundDrawablesWithIntrinsicBounds(null,null, getResources().getDrawable(R.drawable.rb_pay_mode_selector),null);
//设置图片的方向,此处为文字右边

 
    rgType.setBackgroundColor(Color.WHITE);
    rgType.addView(newRadio, RadioGroup.LayoutParams.MATCH_PARENT,RadioGroup.LayoutParams.WRAP_CONTENT);

//通过LayoutParams可以设置radiobutton中文字和图片间距,此处文字会填充整个屏幕
}

设置点击事件

rgType.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
    @Override
    public void onCheckedChanged(RadioGroup radioGroup, int i) {
//getCheckedRadioButtonId拿到当前点击的radiobutton
        RadioButton radioButton = (RadioButton) findViewById(radioGroup.getCheckedRadioButtonId());

        type = radioButton.getText().toString();
        typeId = radioButton.getTag()+"";
        if (type.contains("卡")) {
            layout_bank_card.setVisibility(View.VISIBLE);
        }else {
            layout_bank_card.setVisibility(View.GONE);
        }
        Log.i("types", type);
        Log.i("checkid", radioGroup.getCheckedRadioButtonId()+"");
        Log.i("checkbid", radioButton.getTag()+"");

    }
});