I'm currently making a flag quiz app, and want to add scores. Below you can see a picture of it; each flag is a fragment, and when you press them, the right hand side allows you to submit an answer.
When you enter the right answer, a "correct" message appears, and you can go to the next flag. I want a right answer to give a score of 1, and a wrong one (or when pressed skip or hint) to give a score of zero. At the end, the score is summarized. However, I'm unsure how to do this. I've created a ScoreActivity.java file where the scores will be registered (though it's currently empty), and I've tried writing the code shown below.
Play.java
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.app.FragmentManager;
import android.view.View;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.view.View.OnClickListener;
import android.view.LayoutInflater;
import android.widget.Button;
import android.widget.ImageButton;
import android.view.ViewGroup;
import layout.FragmentOne;
import layout.FragmentTwo;
import layout.FragmentThree;
import layout.FragmentDefault;
public class Play extends MainActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_play);
final ImageButton imageBtn10 = (ImageButton) findViewById(R.id.imageButton10);
final ImageButton imageBtn9 = (ImageButton) findViewById(R.id.imageButton9);
final ImageButton imageBtn8 = (ImageButton) findViewById(R.id.imageButton8);
final ImageButton imageBtn7 = (ImageButton) findViewById(R.id.imageButton7);
final ImageButton imageBtn6 = (ImageButton) findViewById(R.id.imageButton6);
final ImageButton imageBtn5 = (ImageButton) findViewById(R.id.imageButton5);
final ImageButton imageBtn4 = (ImageButton) findViewById(R.id.imageButton4);
final ImageButton imageBtn3 = (ImageButton) findViewById(R.id.imageButton3);
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
FragmentDefault fd = new FragmentDefault();
fragTrans.replace(R.id.fragment_place, fd);
fragTrans.commit();
fragTrans.hide(new FragmentOne());
fragTrans.hide(new FragmentTwo());
fragTrans.hide(new FragmentThree());
imageBtn10.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentOne());
fragTrans.commit();
imageBtn10.setEnabled(false);
}
});
imageBtn9.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentTwo());
fragTrans.commit();
}
});
imageBtn8.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentThree());
fragTrans.commit();
}
});
imageBtn7.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentThree());
fragTrans.commit();
}
});
imageBtn6.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentThree());
fragTrans.commit();
}
});
imageBtn5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentThree());
fragTrans.commit();
}
});
imageBtn4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentThree());
fragTrans.commit();
//imageBtn4.setEnabled(false);
}
});
imageBtn3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragMan = getFragmentManager();
FragmentTransaction fragTrans = fragMan.beginTransaction();
fragTrans.replace(R.id.fragment_place, new FragmentThree());
fragTrans.commit();
}
});
Button button_score = (Button)findViewById(R.id.scoreButton);
button_score.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intentPlay = new Intent(Play.this, ScoreActivity.class);
startActivity(intentPlay);
}
});
}
}
FragmentOne.java (this is the fragment for the German flag)
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.app.Fragment;
import android.preference.PreferenceManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;
//import android.widget.TextView;
public class FragmentOne extends Fragment {
EditText theAnswer;
Button ScoreButton;
private EditText userAnswer;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_fragment_one, null);
userAnswer = (EditText)v.findViewById(R.id.editText);
final TextView tv = (TextView)v.findViewById(R.id.showCorrect);
final TextView hintv = (TextView)v.findViewById(R.id.textHint);
final Button submit = (Button)v.findViewById(R.id.submitBtn1);
submit.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String theAnswer = (userAnswer.getText().toString());
if (theAnswer.equalsIgnoreCase("Germany")) {
//TextView tv = (TextView)v.findViewById(R.id.showCorrect);
tv.setText("Correct!");
} else {
}
submit.setEnabled(false);
// updateScore();
}
});
final Button skip = (Button)v.findViewById(R.id.skipBtn);
skip.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
submit.setEnabled(false);
}
});
final Button hint = (Button)v.findViewById(R.id.hintBtn);
hint.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
hintv.setText("The capital is Berlin \n The country is in Europe \n It starts with G... ");
//submit.setEnabled(false);
}
});
return v;
}
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ScoreButton = (Button)getView().findViewById(R.id.scoreButton);
final SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
ScoreButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
SharedPreferences.Editor editor = app_preferences.edit();
if (userAnswer.isChecked()){
editor.putInt("answer_value", 1);
}
else {
editor.putInt("answer_value", 0);
}
editor.commit();
}
});
}
}
.isChecked() appears in red. Do I need to import something?
To save the Scores , you can use
SharedPreferences. As per the docs:How do I use
SharedPreferencesto store my Score?Every time the user clicks the
submitbutton, inside theonClickListener()retrieve the existing value from theSharedPreferencesfile and increment it by one.So, How do I do it?
Well First, create an instance of
SharedPreferences:then initialize it:
then inside the
onClickListener():So what this does is , it creates a Key value pair, where the key is
SCORE, andputInt()method inserts a value associated with the key, in this caseSCORE.NOTE :
sharedpreferences.getInt("SCORE",0)+1)what this does is it increments, the score by one. And finallyapply()saves the data to theSharedPreferencesfile.How do I retrieve the Score ?
Where, the
0is the default value.Hope it helps!