Put and Get Selected Radio Button from Radio Group using SharedPreferences - android-fragments

Question

want to store selected radio from and radio group and once that fragment is again launch , previous selected radio should be selected , I tried but not able to get it .
I need to store selected position on Click of button only .
This is code which I am using :
radiogender=(RadioGroup)rootView.findViewById(R.id.radioGroup1);
radiogender.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// find which radio button is selected
if(checkedId == R.id.radioButton1) {
Toast.makeText(getActivity(), "You: Dude !!!",
Toast.LENGTH_SHORT).show();
} else if(checkedId == R.id.radioButton2) {
Toast.makeText(getActivity(), "You: Babe !!!",
Toast.LENGTH_SHORT).show();
}
}
});

Answer 1

Try something like this
radiogender=(RadioGroup)rootView.findViewById(R.id.radioGroup1);
radioButton1=(RadioButton) rootView.findViewById(R.id.radioButton1);
radioButton2=(RadioButton) rootView.findViewById(R.id.radioButton2);
SharedPreferences myPrefs=context.getSharedPreferences("general",context.MODE_PRIVATE); //you can give any name in place of general to your preferences
radiogender.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// find which radio button is selected
if(checkedId == R.id.radioButton1) {
Toast.makeText(getActivity(), "You: Dude !!!",
Toast.LENGTH_SHORT).show();
//save in preferences
myPrefs.edit().putInt("selected",1).commint();
} else if(checkedId == R.id.radioButton2) {
Toast.makeText(getActivity(), "You: Babe !!!",
Toast.LENGTH_SHORT).show();
//save in preferences
myPrefs.edit().putInt("selected",2).commit();
}
}
});
//check if there is any value in preferences and set accordingly
int s=myPrefs.getInt("selected",0); //will return 0 when nothing is stored
if(s==1){
radioButton1.setChecked(true);
} else if(s==2){
radioButton2.setChecked(true);
}
To add a value in preferences, you first use the edit() tag and then use putInt or putString ,etc. to add value to the preferences.
Example putInt("selected",1 ); Here the 'selected' is the key or name that you provide so that you can fetch the value with that key. And '1' is the value to be stored against that key.
Then use commit() to save the value in preferences.
When you need to fetch a value, you use getInt or getString etc. to fetch the value.
Example getInt("selected",0);. Here selected is the key whose value you want to fetch. 0 is the default value that will be supplied in case there is no value under the key that you have provided.
Hope this helps :)