Set the initial time of a Chonometer with the text of a textView

Question

Hello, I wonder if it is possible to define the initial value of a chonometer based on a textView.

texView who would like to set the beginning of Chronometer in blue highlight.

This textView receives data from a server, but is not real-time, updating only on Onresume.

Answer 1

The value in Textview is a string that represents minutes and seconds.
To use it, as the starting value of Chonometer, you have to convert it to milliseconds.

Create a method for conversion:

private long minutesAndSecondsToMilliseconds(String minutesAndSeconds){
    String[] timeParts = minutesAndSeconds.split(":");
    int minutes = Integer.parseInt(timeParts[0]);
    int seconds = Integer.parseInt(timeParts[1]);
    return (minutes * 60 + seconds) * 1000;
}

_{Note: The method assumes that the value in the string minutesAndSeconds is in format mm:ss. mm may be greater than 59.}

Use later like this:

TextView textView = (TextView)findViewById(R.id.textView); 
Chronometer chronometer = (Chronometer)findViewById(R.id.chronometer);
...
...
long milliseconds = minutesAndSecondsToMilliseconds(textView.getText().toString());
chronometer.setBase(SystemClock.elapsedRealtime() - milliseconds);