I am beginner at android developing and i am making very simple app that has a content inside and you can edit the font type and size of the content using settings fragment . a problem is facing me which when i set my fonts settings it saved well. i close the app and get back to the content activity and it works very well but when i get back to the settings fragment it returns the font type JUST . to its default value.the font size stays at user determinded value . This is settings fragment code
package com.example.ali.azkarv10;
import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Typeface;
import android.net.Uri;
import android.os.Bundle;
import android.preference.SwitchPreference;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.CompoundButton;
import android.widget.SeekBar;
import android.widget.Spinner;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link SettingsFragment.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link SettingsFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class SettingsFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private static final String fonts[]={"fonts/blacksugar.ttf","fonts/baghdad.ttf","fonts/bdavat.ttf","fonts/fsmetal.ttf","fonts/kufi.ttf","fonts/tachkili.ttf","fonts/yassin.ttf"};
private String mParam1;
private String mParam2;
SharedPreferences sharedPreferences;
SharedPreferences.Editor edit;
Switch switchWidget;
TextView textView;
SeekBar seekBar;
TextView tester;
Spinner spinner;
SpinnerAdapter spinnerAdapter;
private OnFragmentInteractionListener mListener;
public SettingsFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment SettingsFragment.
*/
// TODO: Rename and change types and number of parameters
public static SettingsFragment newInstance(String param1, String param2) {
SettingsFragment fragment = new SettingsFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
sharedPreferences=getActivity().getSharedPreferences("data",Context.MODE_PRIVATE);
edit=sharedPreferences.edit();
View v= inflater.inflate(R.layout.fragment_settings, container, false);
switchWidget=(Switch)v.findViewById(R.id.switch1);
switchWidget.setChecked(sharedPreferences.getBoolean("buzzer",false));
switchWidget.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
edit.putBoolean("buzzer",true);
// Toast.makeText(getActivity(),"true",Toast.LENGTH_LONG).show();
edit.commit();
}else {
edit.putBoolean("buzzer",false).commit();
//Toast.makeText(getActivity(),"false",Toast.LENGTH_LONG).show();
}
}
});
tester=(TextView)v.findViewById(R.id.textSizeTester);
seekBar=(SeekBar)v.findViewById(R.id.seekBar);
seekBar.setProgress(sharedPreferences.getInt("fontSize",20)-10);
tester.setTextSize(seekBar.getProgress()+10);
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
int progress_Value;
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
progress_Value=progress;
edit.putInt("fontSize",10+progress).commit();
tester.setTextSize(((float)10+progress));
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
edit.putInt("fontSize",10+progress_Value).commit();
tester.setTextSize(((float)10+progress_Value));
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
edit.putInt("fontSize",10+progress_Value).commit();
tester.setTextSize(((float)10+progress_Value));
}
});
Typeface typeface=Typeface.createFromAsset(getActivity().getAssets(),"fonts/blacksugar.ttf");
textView=(TextView)v.findViewById(R.id.textsets);
textView.setTypeface(typeface);
spinner=(Spinner)v.findViewById(R.id.spinner);
spinnerAdapter=new SpinnerAdapter(getActivity(),fonts);
spinner.setAdapter(spinnerAdapter);
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","fonts/fsmetal.ttf")));
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
switch(position){
case 0:edit.putString("fontType",fonts[0]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
case 1:edit.putString("fontType",fonts[1]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
case 2:edit.putString("fontType",fonts[2]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
case 3:edit.putString("fontType",fonts[3]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
case 4:edit.putString("fontType",fonts[4]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
case 5:edit.putString("fontType",fonts[5]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
case 6:edit.putString("fontType",fonts[6]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
// textView.setText(sharedPreferences.getString("fontType",""));
return v;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
please help
onItemSelectedListener is called the first time with position = 0.
So you are overriding the preference with "fonts/blacksugar.ttf" when SettingsFragment is created.
You should get "fontType" preference and select it in the Spinner:
Spinner spinner = (Spinner) v.findViewById(R.id.spinner);
ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<>(getActivity(), R.layout.spinner_layout, fonts);
spinner.setAdapter(spinnerAdapter);
spinner.setSelection(spinnerAdapter.getPosition(sharedPreferences.getString("fontType","fonts/blacksugar.ttf")));
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
edit.putString("fontType",fonts[position]).commit();
tester.setTypeface(Typeface.createFromAsset(getActivity().getAssets(),sharedPreferences.getString("fontType","")));
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});