Truetime Android API, how to get the values GMT, PST, device time automatic whenever open the activity?

I am using the API truetime-android. https://github.com/instacart/truetime-android

My problem is, if i want to get the values GMT, PST, device time. I have to press the button Get Time Now. I don't like that, I want whenever I open that activity, the three GMT, PST, device time are already have the values, so i don't need to press button Get Time Now the get the values GMT, PST, device time. How to implement that?

Here is my code

public class SampleActivity extends AppCompatActivity {
private Button refreshBtn;
private TextView timeGMT;
private TextView timePST;
private TextView timeDeviceTime;

   protected void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_activity);
    setupUI();
    init(this);
    click() ;
}

public static void init(final Context context) {
(new Thread(new Runnable() {
    public void run() {
        try {
           TrueTime.build().withNtpHost("time.google.com").withLoggingEnabled(false).
           withSharedPreferencesCache(context).
           withConnectionTimeout(31428).initialize();
        } catch (IOException var2) {
            var2.printStackTrace();
        }
    }
})).start();

private void click() {
    Date trueTime;
    refreshBtn!!.setOnClickListener(View.OnClickListener {
        if (!TrueTime.isInitialized()) {
            //do nothing
        } else {
       trueTime = TrueTime.now();
       Date deviceTime = new Date();
       timeGMT.setText(formatDate(trueTime, "yyyy-MM-dd HH:mm:ss",TimeZone.getTimeZone("GMT")));
       timePST.setText(formatDate(trueTime, "yyyy-MM-dd HH:mm:ss", TimeZone.getTimeZone("GMT07:00")));
       timeDeviceTime.setText(formatDate(deviceTime, "yyyy-MM-dd HH:mm:ss",TimeZone.getTimeZone("GMT-07:00"))));
        }
    }
}
private void setupUI() {
    refreshBtn = (Button) findViewById(R.id.tt_btn_refresh);
    timeGMT = (TextView) findViewById(R.id.tt_time_gmt);
    timePST = (TextView) findViewById(R.id.tt_time_pst);
    timeDeviceTime = (TextView) findViewById(R.id.tt_time_device);
}

private String formatDate(Date :date ,String : pattern,TimeZone : timeZone){
    String format = SimpleDateFormat(pattern, Locale.ENGLISH);
    format.timeZone = timeZone;
    return format.format(date);
}

Solution

Try this out. You can find my changes as part of onCreate

public class SampleActivity extends AppCompatActivity {
private Button refreshBtn;
private TextView timeGMT;
private TextView timePST;
private TextView timeDeviceTime;

   protected void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_activity);
    setupUI();
    init(this);
    new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
        if (TrueTime.isInitialized()) {
           trueTime = TrueTime.now();
           Date deviceTime = new Date();
           timeGMT.setText(formatDate(trueTime, "yyyy-MM-dd HH:mm:ss",TimeZone.getTimeZone("GMT")));
           timePST.setText(formatDate(trueTime, "yyyy-MM-dd HH:mm:ss", TimeZone.getTimeZone("GMT07:00")));
           timeDeviceTime.setText(formatDate(deviceTime, "yyyy-MM-dd HH:mm:ss",TimeZone.getTimeZone("GMT-07:00"))));
        }
         }
        }, 1000);
}

public static void init(final Context context) {
(new Thread(new Runnable() {
    public void run() {
        try {
           TrueTime.build().withNtpHost("time.google.com").withLoggingEnabled(false).
           withSharedPreferencesCache(context).
           withConnectionTimeout(31428).initialize();
        } catch (IOException var2) {
            var2.printStackTrace();
        }
    }
})).start();

private void click() {
    Date trueTime;
    refreshBtn!!.setOnClickListener(View.OnClickListener {
          if (!TrueTime.isInitialized()) {
            //do nothing
        } else {
       trueTime = TrueTime.now();
       Date deviceTime = new Date();
       timeGMT.setText(formatDate(trueTime, "yyyy-MM-dd HH:mm:ss",TimeZone.getTimeZone("GMT")));
       timePST.setText(formatDate(trueTime, "yyyy-MM-dd HH:mm:ss", TimeZone.getTimeZone("GMT07:00")));
       timeDeviceTime.setText(formatDate(deviceTime, "yyyy-MM-dd HH:mm:ss",TimeZone.getTimeZone("GMT-07:00"))));
        }
    }
}
private void setupUI() {
    refreshBtn = (Button) findViewById(R.id.tt_btn_refresh);
    timeGMT = (TextView) findViewById(R.id.tt_time_gmt);
    timePST = (TextView) findViewById(R.id.tt_time_pst);
    timeDeviceTime = (TextView) findViewById(R.id.tt_time_device);
}

private String formatDate(Date :date ,String : pattern,TimeZone : timeZone){
    String format = SimpleDateFormat(pattern, Locale.ENGLISH);
    format.timeZone = timeZone;
    return format.format(date);
}