I need your help to get a variable from the countdown and set that value to text view. Suppose if countdown stopped at 0:40 sec and I want to put that number to text view.
So I'm using Seekbar to update the time with progress and a textview. And suppose I stopped at a certain number, next time I start again, let the number start from when it stopped. I have uploaded the image of output. Thanks
I learned to create this app from udemy online tutorial. Its called Complete android developer course- Build 23 Apps!!. Its lesson 38- App Egg timer.
This is my MainActivity.java file
public class MainActivity extends AppCompatActivity {
TextView timerTv;
SeekBar timerSeekBar;
Button startBtn;
CountDownTimer countDownTimer;
boolean counterisActive = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
timerTv = (TextView) findViewById(R.id.countdowntimertextview);
timerSeekBar = (SeekBar) findViewById(R.id.timerSeekBar);
startBtn = (Button) findViewById(R.id.startBtn);
timerSeekBar.setMax(300);
timerSeekBar.setProgress(20);
timerSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
updateTimer(progress);
Log.i("Seekbar changes", String.valueOf(progress), null);
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
}
public void resetTimer(){
//This is where I want to set the text.
timerTv.setText("Trying to get text from countdown!!");
startBtn.setText("START!");
timerSeekBar.setEnabled(true);
countDownTimer.cancel();
timerSeekBar.setProgress(20);
counterisActive = false;
}
public void buttonClicked(View view){
if(counterisActive){
resetTimer();
}else {
counterisActive = true;
timerSeekBar.setEnabled(false);
startBtn.setText("STOP!");
Log.i("Button Clicked", "Clicked");
countDownTimer = new CountDownTimer(timerSeekBar.getProgress() * 1000 + 100, 1000) {
#Override
public void onTick(long millisUntilFinished) {
updateTimer((int) millisUntilFinished / 1000);
}
#Override
public void onFinish() {
MediaPlayer mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.templebell);
mediaPlayer.start();
Log.i("Timer Finished", "Done!!");
resetTimer();
}
}.start();
}
}
public void updateTimer(int secondLefts){
int minutes = secondLefts / 60;
int seconds = secondLefts - (minutes * 60);
String secondString = Integer.toString(seconds);
if(seconds <= 9) {
secondString = "0" + seconds;
}
timerTv.setText(minutes + " : " + secondString );
}
}
I think you need to pause the timer.
First create a global long variable in your activity;
long timerProgress;
Change your restProgress() method like below, or you can add new method pauseTimer().
public void restTimer(){
//This is where I want to set the text.
updateTimer((int) timerProgress/1000);
startBtn.setText("START!");
timerSeekBar.setEnabled(true);
countDownTimer.cancel();
timerSeekBar.setProgress((int) timerProgress/1000);
counterisActive = false;
}
Know add this line to your override method onTick.
#Override
public void onTick(long millisUntilFinished) {
updateTimer((int) millisUntilFinished / 1000);
// add this line for store progress timer.
timerProgress = millisUntilFinished;
}
You can add another button one for pause and other for rest Timer.
Try replacing timerTv.setText(minutes + " : " + secondString ); with
runOnUiThread(new Runnable() {
#Override
public void run() {
timerTv.setText(minutes + " : " + secondString );
}
});
If you try to update the UI mid-thread, it will wait until the current thread has finished before updating the text.
Related
I'm Making a countdown timer app but the problem when the countdown finish it doesn't show me 00:00
I'm using seek bar the set the timer when I use 100 in countDown interval it works but I want it to be 1000 in the interval and I'm following a tutorial I write the same code shown in the tutorial it works for him and not for me please help me guys
public void buttonClicked(View view)
{
CountDownTimer countDown = new CountDownTimer(timerSeek.getProgress() * 1000 + 100, 1000) {
#Override
public void onTick(long millisUntilFinished) {
timerUpdate((int) millisUntilFinished / 1000);
}
#Override
public void onFinish() {
Toast.makeText(MainActivity.this, "finish", Toast.LENGTH_SHORT).show();
}
}.start();
}
/* ========================================================= */
/* ========================================================= */
public void timerUpdate(int secondsLeft)
{
int minutes = secondsLeft / 60;
int seconds = secondsLeft - (minutes * 60);
String secondsStr = Integer.toString(seconds);
if (seconds <= 9)
secondsStr = "0" + secondsStr;
timerText.setText(Integer.toString(minutes) + " : " + secondsStr);
}
/* ============================================================ */
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
timerSeek = (SeekBar) findViewById(R.id.timerSeek);
timerText = (TextView) findViewById(R.id.timerText);
timerSeek.setMax(600);
timerSeek.setProgress(30);
timerSeek.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
timerUpdate(progress);
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
}
This is because onTick() method is not called when the countdown is finished. Rather, onFinish() is called. An easy solution that appears to me is that you can explicitly show 00:00 inside onFinish(), since this method is called when the countdown is finished.
I wanted to program a timer that can be set up by clicking a button. For example button one sets a timer to 1 minute. Button 2 sets the timer to 2 minutes. the third button should start and stop the timer. I tried many code samples but it is not running. Has someone an idea how to solve this?
public void mittelBtn (View view){
EditText timerText = (EditText) findViewById(R.id.timerText);
timerText.setText("7:00");
countDownTimer =new CountDownTimer(420000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
}
}.start();
}
public void weichPlusBtn (View view){
EditText timerText = (EditText) findViewById(R.id.timerText);
timerText.setText("5:00");
countDownTimer =new CountDownTimer(300000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
}
}.start();
Because in onTick you should do something.
public void weichPlusBtn (View view){
EditText timerText = (EditText) findViewById(R.id.timerText);
timerText.setText("5:00");
//Set a couter variable
int counter = 5 * 60;
countDownTimer =new CountDownTimer(300000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
counter--;
String newTime = secondsToString(counter);
timerText.setText(newTime);
}
#Override
public void onFinish() {
}
}.start();
private String secondsToString(int pTime) {
return String.format("%02d:%02d", pTime / 60, pTime % 60);
}
Hope this helps. Good luck.
I have a function that has a timer that I want to "restart" every time you click the button. I tried doing this but when the button is clicked several times it appears that there are several timers still going on when I only want the one. How do I fix this?
So, onClick => Cancel last timer => Start new timer
public void startService(android.view.View view) {
final SharedPreferences sP = getSharedPreferences("com.example.safetyNet", MODE_PRIVATE);
final Button button = findViewById(R.id.button3);
final Intent transIntent = new Intent(this, CheckPinActivity.class);
CountDownTimer cdt = new CountDownTimer(sP.getInt("TiT", 10) * 1000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
button.setText(String.valueOf(millisUntilFinished).substring(0,2));
}
#Override
public void onFinish() {
if(sP.getBoolean("lockedDown", false) == true){
startActivity(transIntent);
}
}
};
cdt.cancel();
cdt.start();
}
The problem is that, everytime you call the method "startService(android.view.View view) {}", a new CountDownTimer is created, so the previous CountDownTimer that you created is not the same reference as this one.
To solve that, you are going to have to create the CountDownTimer as a class member for your class:
public YourClass {
private CountDownTimer cdt;
.... (do whatever)....
public void startService(android.view.View view) {
final SharedPreferences sP = getSharedPreferences("com.example.safetyNet", MODE_PRIVATE);
final Button button = findViewById(R.id.button3);
final Intent transIntent = new Intent(this, CheckPinActivity.class);
if (cdt == null) {
cdt = new CountDownTimer(sP.getInt("TiT", 10) * 1000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
button.setText(String.valueOf(millisUntilFinished).substring(0,2));
}
#Override
public void onFinish() {
if(sP.getBoolean("lockedDown", false) == true){
startActivity(transIntent);
}
}
};
} else {
cdt.cancel();
}
cdt.start();
}
Hope that helps you
In my game the user gets a point when he clicks a button within five seconds. Now I want the timer to decrease the time with every point the user gets - so e.g. with zero points the user has five seconds, and when he has one point he gets only 4.5 seconds to click it again and get the second point. Do I solve it with a for loop?
public class GameScreen extends Activity {
public int score = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game);
Button count = (Button) findViewById(R.id.button1);
text = (TextView) this.findViewById(R.id.textView3);
tvscore = (TextView) findViewById(R.id.score);
timer();
}
public void gameover() {
Intent intent = new Intent(this, GameOverScreen.class);
startActivity(intent);
}
public void onClick (View view) {
score++;
tvscore.setText(String.valueOf(score));
timer();
}
public void timer(){
new CountDownTimer(5000, 10) {
public void onTick(long millisUntilFinished) {
text.setText(""+String.format("%02d:%03d",
TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished)),
TimeUnit.MILLISECONDS.toMillis(millisUntilFinished) - TimeUnit.SECONDS.toMillis(TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished))
));
if(animationRunning) {
cancel();
}
}
public void onFinish() {
text.setText("Too slow.");
gameover();
}
}.start();
}
}
What about doing this:
public void timer(float time) {
new CountDownTimer(time, 10) {
// YOUR CODE
}
}
public void onClick (View view) {
score++;
tvscore.setText(String.valueOf(score));
timer(Math.max(5000-score*500, 2000));
}
I suppose each click (score) will decrease the time with 500 millis...
Limit - Math.max(a, b) will choose the biggest value. Means when 5000-score*500 will be lower than 2000, it will choose 2000 millis instead
Only timer method:
public void timer() {
float time = Math.max(5000-score*500, 2000)
new CountDownTimer(time, 10) {
// YOUR CODE
}
}
I am trying to start a timer when activity created and be able to reset the timer back from zero if the same button is pressed but every time I press the button that initiates the set Interval it seems to be creating a new interval and not resetting the one that was already creating. Can someone help please? Here is my code
timer = (TextView) findViewById(R.id.timer_value);
Count = new CountDownTimer(time, 1000) {
public void onTick(long millisUntilFinished) {
timer.setText("Time Left: " + millisUntilFinished / 1000);
}
public void onFinish() {
timer.setText("OUT OF TIME!");
if (time < 10000) {
time = 10000;
}
AlertDialog.Builder builder = new AlertDialog.Builder(
TicTacToe.this);
builder.setMessage("You are Out of Time").setPositiveButton(
"Replay", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// reset the game environment.
Count.onFinish();
// Count.cancel();
Count.start();
new_game(player_name_1);
}
});
AlertDialog alert = builder.create();
alert.show();
}
}.start();
you can use timers
//in global
Timer myTimer
/**
* its kills runnable
*/
public void stopTimer(){
//handler.removeCallbacks(null); //it resets all timer which handler holds
myTimer.cancel();
}
public void setTimer(int time){//give it 5 for 5 secs
final Runnable Update = new Runnable() {
public void run() {
//do sth
}
};
myTimer = new Timer();
myTimerTimer.schedule(new TimerTask() {
#Override
public void run() {
handler.post(Update);
}
}, 1000, time*1000);
}
If you want to restart your timer, remove Count.onFinish();
Update:
I replaced AlertDialog with a new thread and here is the code that works on my emulator
public class MainActivity extends Activity
{
int time = 10000;
CountDownTimer Count;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final TextView timer = (TextView) findViewById(R.id.timer);
Count = new CountDownTimer(time, 1000) {
public void onTick(long millisUntilFinished) {
timer.setText("Time Left: " + millisUntilFinished / 1000);
}
public void onFinish() {
timer.setText("OUT OF TIME!");
if (time < 10000) {
time = 100000;
}
}
}.start();
}
public void buttonClicked(View view)
{
Log.i("Timer", "Resetting timer");
Count.cancel();
Count.start();
}
}