设置RadioButton onResume

时间:2017-04-01 08:49:16

标签: android

创建应用程序,其中我在recyclerview列表中设置数据,并在radiogroup和text中使用radiobutton显示数据。我能够检查radiobutton,但是当我再次打开该活动时,我检查的radiobutton未经检查,但我希望当我再次开放活动,我的无线电话应该被检查。

这是我的Adapter类:

holder.radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                RadioButton checked_rb = (RadioButton) group.findViewById(checkedId);
                    holder.radioButton.setChecked(true);

                if (lastCheckedRB != null) {
                    lastCheckedRB.setChecked(false);
                }
                if(selectedId!=0)
                {
                    holder.radioButton.setChecked(true);
                }

                //store the clicked radiobutton
                if(holder.radioButton.isChecked())
                {
                    teamList.clear();
                    lastCheckedRB = checked_rb;
                    teamList.add(name);

                    int checkedIndex = group.indexOfChild(checked_rb);
                }
                else
                {
                    holder.radioButton.setChecked(false);
                }
                int selectedId = holder.radioGroup.getCheckedRadioButtonId();

            }

这是我的Activity类:

protected void onResume() {
    super.onResume();
    try {
        adapter.lastCheckedRB.setChecked(true);
        }
        adapter.notifyDataSetChanged();
    } catch (NullPointerException e) {

    }
}