CODEWITHSUNDEEP
android
Iqra Rana
Iqra Rana

Reputation: 37

unable to get TextView value

i have a TextView which shows countdown timer in activity A. and the function for countdown timer is in class B. in activity A:

TextView tvTime = (TextView) findViewById(R.id.tv_time);
B a = new B(tvTime);
a.startTimer(20000);

and in Class B:

public B(TextView tvTime)
{
 this.tvTime = tvTime;
}

//Countdown Timer

   public void startTimer(int t) {

   Log.d("Timer Value outside cdt", ""+t); 
    timer = new CountDownTimer(t, 1000) {

        public void onTick(long millisUntilFinished) {
            tvTime.setText(""+millisUntilFinished
                    / 1000;);

            Log.d("Timer Value outside cdt", ""+millisUntilFinished
                    / 1000;);
        }

        public void onFinish() {
            tvTime.setText("000");
        }

    };
    timer.start();


}

and its working fine but when i try to get value of tvTime to save it inSharedPrefs by using following code its not working

 public void saveGame(){
    time = tvTime.getText().toString();
    spEdit.putString(SAVED_TIME, time);
    spEdit.commit();
}

Edited:

By adding 2 debug statements I figure it out that the problem is not in saving the value but the problem is there when i call startTimer() on getting stored value 

public void getGame(){
startTimer(Integer.valueOf(sp.getString(SAVED_TIME, "0000")));
}

after calling this func i can see the result of 

   Log.d("Timer Value outside cdt", ""+t);

but 2nd statement show no result 

            Log.d("Timer Value outside cdt", ""+millisUntilFinished
                    / 1000;);

Upvotes: 0

Views: 77

Answers (2)

karan
karan

Reputation: 8843

make sure your textview's object is accessible in the particular method, it might be out of scope for your method. if possible declare your textview object at class level so all the class's method can use that

public class yourclass 
{
    TextView tvTime;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //--- text view---
        TextView txtView = (TextView) findViewById(R.id.text_id);
}

public void saveGame(){
    time = tvTime.getText().toString();//now you can use your textview here
    spEdit.putString(SAVED_TIME, time);
    spEdit.commit();
}
}

Upvotes: 0

Santosh Kathait
Santosh Kathait

Reputation: 1444

To store the value in SP:

 time = tvTime.getText().toString();
Editor editor = sharedpreferences.edit();
      editor.putString("NAME", time );
    editor.commit();

To retrieve data from SP:

SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); 
String name= prefs.getString("NAME", null);

Upvotes: 1

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