The issue I'm having is that my score counter variable 'score' cannot go higher than 1 in my program. If the user inputs a value equal to the random number displayed (LoadG1), they are awarded a point. This is then outputted at the end, as shown in the longer timer. In the shorter timer, the point is added. The int variable is declared at the beginning. All is shown below. Now I'm aware that it's final, and that this is most likely the cause of my issue, but the IDE requires it to be final otherwise I can only call the variable 'score' in one method (CountDown Timer in my case). This is causing me problems. I intend to have a point added each time the 4 second timer repeats if the user has the correct input each time, though it can't go more than 1 at the moment. I would like the final score to be outputted at the end, as shown below.
The code:
final int[] score = {0};
final Random generateG1 = new Random();
final int loadG1 = generateG1.nextInt(1000000)+10000;
final TextView number = (TextView) findViewById(R.id.number);
number.setText(" "+loadG1);
final CountDownTimer loop = new CountDownTimer(4000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
number.setVisibility(View.GONE);
final TextView prompt = (TextView) findViewById(R.id.prompt);
prompt.setVisibility(View.VISIBLE);
prompt.setText(" Enter the number");
final EditText input = (EditText) findViewById(R.id.enterAnswer);
input.setVisibility(View.VISIBLE);
input.setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
Editable answer = input.getText();
int finalAnswer = Integer.parseInt(String.valueOf(answer));
int finalLoadG1 = Integer.parseInt(String.valueOf(loadG1));
input.setVisibility(View.GONE);
prompt.setVisibility(View.GONE);
if (finalAnswer == finalLoadG1) {
score[0]++;
}
number.setVisibility(View.VISIBLE);
final int loadG1 = generateG1.nextInt(1000000) + 10000;
number.setText(" " + loadG1);
input.getText().clear();
start();
return true;
default:
}
}
return false;
}
});
}
}.start();
new CountDownTimer(24000, 1000) {
#Override
public void onTick (long millisUntilFinished) {
}
#Override
public void onFinish() {
TextView result = (TextView) findViewById(R.id.outcome);
result.setText("Score: "+ score[0]);
TextView prompt = (TextView) findViewById(R.id.prompt);
prompt.setVisibility(View.GONE);
final EditText input = (EditText) findViewById(R.id.enterAnswer);
input.setVisibility(View.GONE);
loop.cancel();
}
}.start();
I'd greatly appreciate it if someone can provide me with a fix to my issue, thanks in advance.
Because you are not reading the random value that you have generated, just the first one. So the first time the answer is correct, but next time you answer different, but the if compares to the firstly generated random number, so it is not counting as valid answer (if you enter same first number all times it will count). You need to read the number from the TextEdit number every time since there is the current number.
So it could be:
final int[] score = {0};
final Random generateG1 = new Random();
final int loadG1 = generateG1.nextInt(1000000)+10000;
final TextView number = (TextView) findViewById(R.id.number);
number.setText(" "+loadG1);
final CountDownTimer loop = new CountDownTimer(4000, 1000) {
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
number.setVisibility(View.GONE);
final TextView prompt = (TextView) findViewById(R.id.prompt);
prompt.setVisibility(View.VISIBLE);
prompt.setText(" Enter the number");
final EditText input = (EditText) findViewById(R.id.enterAnswer);
input.setVisibility(View.VISIBLE);
input.setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
Editable answer = input.getText();
int finalAnswer = Integer.parseInt(String.valueOf(answer));
// here we get from text field the current correct value
int finalLoadG1 = Integer.parseInt(String.valueOf(number.getText()));
input.setVisibility(View.GONE);
prompt.setVisibility(View.GONE);
if (finalAnswer == finalLoadG1) {
score[0]++;
}
number.setVisibility(View.VISIBLE);
final int loadG1 = generateG1.nextInt(1000000) + 10000;
number.setText(" " + loadG1);
input.getText().clear();
start();
return true;
default:
}
}
return false;
}
});
}
}.start();
new CountDownTimer(24000, 1000) {
#Override
public void onTick (long millisUntilFinished) {
}
#Override
public void onFinish() {
TextView result = (TextView) findViewById(R.id.outcome);
result.setText("Score: "+ score[0]);
TextView prompt = (TextView) findViewById(R.id.prompt);
prompt.setVisibility(View.GONE);
final EditText input = (EditText) findViewById(R.id.enterAnswer);
input.setVisibility(View.GONE);
loop.cancel();
}
}.start();
Also, you could (and should) use AtomicInteger instead of int[], the methods you'll be interested are:
int AtomicInteger#get();
int AtomicInteger#incrementAndGet()
So declare the score as AtomicInteger like:
final AtomicInteger score = new AtomicInteger();
then instead of score[0]++; do score.incrementAndGet();
then when you read the results do: score.get();
Did you write final int[] score = {0}; in the onCreate?
Try to write int[] score = {0}; out of onCreate, as a global variable.
Related
"goClicked" function is a onClick function to the button "Go" but it is not executing when I click on the button "Go"( I am able to say this because the toast is not appearing ) until I comment the while loop in "goClicked" function. I am pasting the code for only 2 functions "goClicked" and "countdown" because they are the only functions that alter the variable "counterRunning".
public void goClicked(View view) {
afterGoPressed();
countDown();
correctCount = 0;
totalCount = 0;
TextView time = (TextView) findViewById(R.id.time);
while (counterRunning) {
int sum = generateQuestion();
pickOption = generateOptions(sum);
}
}
public void countDown() {
counterRunning = true;
final TextView time = (TextView) findViewById(R.id.time);
final Button tryAgain = (Button) findViewById(R.id.tryAgain);
final TextView result = (TextView) findViewById(R.id.result);
final TextView score = (TextView) findViewById(R.id.score);
int secondsLeft = 30;
time.setText(secondsLeft+"");
CountDownTimer countDownTimer = new CountDownTimer(30000,1000) {
#Override
public void onTick(long millisUntilFinished) {
time.setText(millisUntilFinished/1000 + "");
}
#Override
public void onFinish() {
tryAgain.setVisibility(View.VISIBLE);
result.setText("Your score: " + score.getText());
result.setVisibility(View.VISIBLE);
counterRunning = false;
}
}.start();
}
It is because you're using an infinite loop with the following code:
while (counterRunning) {
int sum = generateQuestion();
pickOption = generateOptions(sum);
}
the code will blocking all other instruction until it found the counterRunning is changed to false inside the while block. But it never happened. Hence the infinite loop.
I was trying to create an application that automatically calculate the percentage. the Percentage value will be shown in a TextView. The value that will be shown in the textview will be based on the inputted value of the user in an edittext.
I've finished creating my codes for this program but, it keeps crashing every time i tried to input some numbers in the edittext.
I hope you understand what am i saying.
Here is my code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sample__table);
btnAdd = (Button)findViewById(R.id.btnAdd);
//btn Function
btnAdd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
AddRow();
}
});
//end of btn function
//text changed
tl = (TableLayout) findViewById(R.id.tl);
row = new TableRow(this);
TableRow.LayoutParams lp = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT);
row.setLayoutParams(lp);
fruit = new EditText(this);
freq = new EditText(this);
perc = new TextView(this);
freq.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
ReCalculate();
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
public void onTextChanged(CharSequence s, int start, int before, int count) {}
});
//text changed end
}
private void AddRow(){
row.addView(fruit);
row.addView(freq);
row.addView(perc);
tl.addView(row);
}
private void ReCalculate(){
float sum = 0f;
int rows = tl.getChildCount();
// Get the total
for (int i = 0; i < rows; i++) {
TableRow elem = (TableRow) tl.getChildAt(i);
sum+= Integer.parseInt(((EditText)elem.getChildAt(1)).getText().toString());
}
// Recalculate every row percent
for (int i = 0; i < rows; i++) {
TableRow elem = (TableRow) tl.getChildAt(i);
int amount = Integer.parseInt(((TextView)elem.getChildAt(1)).getText().toString());
((TextView)elem.getChildAt(1)).setText(String.valueOf(amount/sum*100));
}
}
}
If you want to detect your text's change, you can use onKeyListener:
EditText edtText = (EditText)findViewById(R.id.editText);
edtText.setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View view, int i, KeyEvent keyEvent) {
Toast.makeText(MainActivity.this, "Text changed!", Toast.LENGTH_SHORT).show();
return false;
}
});
it worked for me, hope it helps.
How can I make the random number change after user got the right number? I tried while, but it seems that if I use while, the number is always true so it's going to make an infinite loop
final TextView randomnumber = (TextView) findViewById(R.id.randomTextView);
final EditText number = (EditText) findViewById(R.id.editText2);
final EditText number2 = (EditText) findViewById(R.id.editText);
final EditText yourchoose = (EditText) findViewById(R.id.choose);
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int a = Integer.parseInt(number.getText().toString());
int b = Integer.parseInt(number2.getText().toString());
int d = (int) (Math.random() * (a - b) + b);
int c = Integer.parseInt(yourchoose.getText().toString());
if(d > c) {
randomnumber.setText("Choose Bigger");
} else if (d < c) {
randomnumber.setText("Choose Smaller");
} else {
randomnumber.setText("You're Right, The number is " + d);
}
}
});
Generate a random number outside onClick. Remove the while loop from the onClick.
See the code below,
final TextView randomnumber = (TextView) findViewById(R.id.randomTextView);
final EditText number = (EditText) findViewById(R.id.editText2);
final EditText number2 = (EditText) findViewById(R.id.editText);
final EditText yourchoose = (EditText) findViewById(R.id.choose);
Random rand = new Random();
final int randomNumber = rand.nextInt();
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int a = Integer.parseInt(number.getText().toString());
int b = Integer.parseInt(number2.getText().toString());
int c = Integer.parseInt(yourchoose.getText().toString());
int random = (int) (randomNumber * (a - b) + b);
if (random > c) {
randomnumber.setText("Choose Bigger");
} else if (random < c) {
randomnumber.setText("Choose Smaller");
} else {
randomnumber.setText("Your're Right, Number is " + random);
}
}
});
EDIT
On having a look again, the random number generated should be between the following range
b < randomNumber < (a - b)
So I used a TextWatcher to listen to the chnage on the number and number2 EditText.
// Before onCreate
int a = 0, b = 0, c, random = 0;
//inside onCreate
final TextView randomnumber = (TextView) findViewById(R.id.randomTextView);
final EditText number = (EditText) findViewById(R.id.editText2);
final EditText number2 = (EditText) findViewById(R.id.editText);
final EditText yourchoose = (EditText) findViewById(R.id.choose);
final Random rand = new Random();
number.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
a = Integer.parseInt(number.getText().toString());
random = rand.nextInt(a - b) + b;
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
#Override
public void onTextChanged(CharSequence s, int start, int count, int after){}
});
number2.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable s) {
b = Integer.parseInt(number2.getText().toString());
random = rand.nextInt(a - b) + b;
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
#Override
public void onTextChanged(CharSequence s, int start, int count, int after){}
});
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int c = Integer.parseInt(yourchoose.getText().toString());
if (random > c) {
randomnumber.setText("Choose Bigger");
} else if (random < c) {
randomnumber.setText("Choose Smaller");
} else {
randomnumber.setText("Your're Right, Number is " + random);
}
}
});
Because the value of c and random is not changing in a while loop, so it goes on.
For example: if value of random is 5 and c is 3. Once it enters the loop, the values remains the same and while(random!=c) is always true, so it's not going to stop.
I have two countdown timers in my program, a longer one (120 sec) and a shorter one (3.5 sec). I want the 120 second timer to be paused whilst the 3.5 second timer is running, and for the longer timer to continue running whenever the 3.5 second timer isn't running. So the program starts with the 120 sec remaining whilst the 3.5 sec one runs, then when the 3.5 sec one runs the 120 sec one will start and only pause when the 3.5 sec one runs again (once users presses enter.) How would I do this?
final CountDownTimer loop = new CountDownTimer(3500, 1000) {
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
number.setVisibility(View.GONE);
final TextView prompt = (TextView) findViewById(R.id.prompt);
prompt.setVisibility(View.VISIBLE);
prompt.setText(" Enter the number");
final EditText input = (EditText) findViewById(R.id.enterAnswer);
input.setVisibility(View.VISIBLE);
input.setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
Editable answer = input.getText();
int finalAnswer = Integer.parseInt(String.valueOf(answer));
int finalLoadG1 = Integer.parseInt(String.valueOf(number.getText()));
input.setVisibility(View.GONE);
prompt.setVisibility(View.GONE);
if (finalAnswer == finalLoadG1) {
score++;
}
number.setVisibility(View.VISIBLE);
if (score>=0 && score<=2){
int loadG1 = generateG1.nextInt(89999)+10000;
number.setText(""+loadG1);
}
else if (score>=3 && score<=5){
int loadG1 = generateG1.nextInt(899999)+100000;
number.setText(""+loadG1);
}
else if (score>=6 && score<=9){
int loadG1 = generateG1.nextInt(8999999)+1000000;
number.setText(""+loadG1);
}
else if (score>=10 && score<=14){
int loadG1 = generateG1.nextInt(89999999)+10000000;
number.setText(""+loadG1);
}
else if (score>=15 && score<=20){
int loadG1 = generateG1.nextInt(899999999)+100000000;
number.setText(""+loadG1);
}
else if (score>=21) {
int loadG1 = generateG1.nextInt((int) 8999999999L)+1000000000;
number.setText(""+loadG1);
}
input.getText().clear();
start();
return true;
default:
}
}
return false;
}
});
}
}.start();
new CountDownTimer(120000, 1000) {
#Override
public void onTick (long millisUntilFinished) {
}
#Override
public void onFinish() {
TextView result = (TextView) findViewById(R.id.outcome);
result.setText("Score: "+ score);
TextView prompt = (TextView) findViewById(R.id.prompt);
prompt.setVisibility(View.GONE);
final EditText input = (EditText) findViewById(R.id.enterAnswer);
input.setVisibility(View.GONE);
loop.cancel();
number.setVisibility(View.GONE);
}
}.start();
I have asked this before, but was not given a valid answer unfortunately. Would be grateful if anyone is capable of answering this question. Please feel free to insert any code that'll help explain your answer. Many thanks in advance.
Ok, I will try to give an example, but no guarantee that this is exactly what you need:
create a global variable and the CountDownTimer objects:
Long remainingTime = 120000L;
ThreePointFiveSecondsTimer mThreePointFiveSecondsTimer;
HundredTwentySecondsTimer mHundredTwentySecondsTimer;
create the 120 seconds timer:
public class HundredTwentySecondsTimer extends CountDownTimer {
public HundredTwentySecondsTimer(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
}
}
create the 3.5 seconds timer:
public class ThreePointFiveSecondsTimer extends CountDownTimer {
public ThreePointFiveSecondsTimer(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
#Override
public void onTick(long millisUntilFinished) {
remainingTime = millisUntilFinished;//set the remaining time
}
#Override
public void onFinish() {
//start the 120 second countdowntimer again
mHundredTwentySecondsTimer = new MyCountDownTimer(remainingTime, 1000);
mHundredTwentySecondsTimer.start();
}
}
start the 120 second timer:
mHundredTwentySecondsTimer = new MyCountDownTimer(remainingTime, 1000);
mHundredTwentySecondsTimer.start();
Then, at any time, you decide to start the 3.5 timer:
mThreePointFiveSecondsTimer = new ThreePointFiveSecondsTimer (3500, 1000);
mThreePointFiveSecondsTimer.start();
mHundredTwentySecondsTimer.cancel();
mHundredTwentySecondsTimer = null;
That´s just the idea behind, but you have to adjust this to your needs. Sorry, but can´t give you all the stuff you need, that will be beyond the frame.
You can try like this (I have not tested but hope it will work)
public class MainActivity extends BaseActivity {
private long remainingTimeForTimer = 0;
private CountDownTimer mCountDownTimer
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Start first timer
test1(120 * 1000);
// now on the basis of remaining timer you can cancel current timer and after that second timer you can start that timer with remaining time
if(remainingTimeForTimer > 0)
{
test1(remainingTimeForTimer);
}
}
private void test1(long totalTimerTime)
{
mCountDownTimer = new CountDownTimer(totalTimerTime, 1000) {
#Override
public void onTick(long millisUntilFinished) {
remainingTimeForTimer = millisUntilFinished;
}
#Override
public void onFinish() {
//trialCount = 0;
}
};
mCountDownTimer.start();
}
#Override
protected void onDestroy() {
if (mCountDownTimer != null) {
mCountDownTimer.cancel();
}
super.onDestroy();
}
}
Resolved
I have resolved this issue after trying multiple times. I ended up putting the larger timer in the onFinish of the shorter one and setting the initial time of that longer timer equal to millisUntilFinished. Then I cancel the long timer when the user presses enter and it automatically starts with the updated time whenever the EditText box is displayed.
I have a runnable timer that update a textview every second, when the activity is onStop (or called into the background) the timer continues to run. The issue i am having is that when i re-launch the activity it starts the same timer again, so the numbers are going up twice as fast as they should. I have it coded so that it will kill both timers before it restarts them but i believe that when the activity is started again the timers are not being killed. Here is an example of my code :
t.cancel();
cd.cancel();
t = new Timer();
t.schedule(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable() {
public void run() {
That is only a small part but it should kill the timer (t.cancel();) then start a new one, this only happens when the activity is stopped and then restarted. please help this issue is driving me absolutely insane.
=========================================================
For the brave souls willing to read alot, here is my entire activity that i am having the issue with:
public class PayTracker extends Activity {
private static double Reserve;
private static int Reserve1;
public static double money;
public static double counter;
private static int go;
private static int countdown;
public static int convert;
public static double HW;
public static double OTW;
public static double HPD;
public static double DPPS;
public Timer t = new Timer();
public Timer cd = new Timer();
public static String mcountdown = "Time till overtime";
public static String mmoney = "total cash";
public static String mcounter = "ticks";
public static String mReserve = "building total";
public static String mReserve1 = "building total 2";
public static String mHW;
public static String mOTW;
public static String mHPD;
public static String mDPPS;
public static String mgo;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pay_tracker);
getActionBar().setDisplayHomeAsUpEnabled(true);
// Receive messages from options page
double pHW, pOTW, pHPD;
Intent intent = getIntent();
pHW = intent.getDoubleExtra(Options.MESSAGE_HW, 0);
pOTW = intent.getDoubleExtra(Options.MESSAGE_OTW, 0);
pHPD = intent.getDoubleExtra(Options.MESSAGE_HPD, 0);
if(pHW != 0){
HW = pHW;
OTW = pOTW;
HPD = pHPD;
}
// Color buttons
Button buttonc = (Button) findViewById(R.id.clockin);
buttonc.getBackground().setColorFilter(0xFF00FF00, PorterDuff.Mode.MULTIPLY);
Button buttond = (Button) findViewById(R.id.clockout);
buttond.getBackground().setColorFilter(0xFFFF0000, PorterDuff.Mode.MULTIPLY);
// go = 0;
// Calculate pay per second
final double PPS = (HW/3600);
DPPS = (PPS/50);
final double OTPPS = (OTW/3600);
final double DOTPPS = (OTPPS/50);
final double HPDPS = (HPD*3600);
final double DHPDPS = (HPDPS*50);
// Display
final TextView t1 = (TextView) findViewById(R.id.yourpay);
t1.setTextColor(Color.parseColor("#008000"));
final TextView t2 = (TextView) this.findViewById(R.id.payper);
final String result2 = String.format("%.8f", OTPPS);
final String result = String.format("%.8f", PPS);
// if(go != 1){
// go = 1;
// if(go == 1){
t.cancel();
cd.cancel();
// go = 0;
// }
// if(go == 0){
// go = 1;
t = new Timer();
t.schedule(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable() {
public void run() {
if(DHPDPS==0){
money = (DPPS+Reserve);
Reserve = (money);
String end = String.format("%1f", money);
t1.setText("$" + end);
}else if(counter > DHPDPS && DOTPPS != 0 && DHPDPS != 0){
money = (DOTPPS+Reserve);
Reserve = (money);
String end = String.format("%1f", money);
t1.setText("$" + end);
} else{
money = (DPPS+Reserve);
Reserve = (money);
String end = String.format("%1f", money);
t1.setText("$" + end);
}
counter++;
//if(counter == 3000)
// t.cancel();
// Display pay per second
if(counter <= DHPDPS || DHPDPS == 0){
t2.setText("Your pay per second is: $"+result);
}else{
t2.setText("Your pay per second is: $"+result2);
}
}
});
}
}, 20, 20);
// Make countdown to overtime display
final Intent intent1 = new Intent(this, PayTracker.class);
// Create the notification
final Notification notification = new Notification(R.drawable.ic_launcher, "Click here to check your pay!", System.currentTimeMillis());
// Create an Intent for the notification to launch
// Create a PendingIntent for the associated Intent
final PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent1, 0);
cd = new Timer();
final TextView count = (TextView) findViewById(R.id.countdown);
convert = (int)HPDPS;
cd.schedule(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable() {
public void run(){
countdown = (convert - Reserve1);
int hours = (countdown/3600);
if(OTPPS != 0 && HPDPS != 0){
count.setText("Seconds Remaining to Overtime: " + countdown + "\nAbout " + hours + " Hours");
Reserve1++;
}
// Set the notification's details
final String end = String.format("%.6f", money);
notification.setLatestEventInfo(getApplicationContext(), "Your Current Pay:", "$"+end, pendingIntent);
// Submit the notification to the system
((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).notify(0, notification);
}
});
}
}, 1000, 1000);
// }
// }
final Button b = (Button) findViewById(R.id.clockout);
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if(go == 1)
go = 0;
if (t != null){
t.cancel();
cd.cancel();
}
}
});
}
public void onRestoreInstanceState(Bundle savedInstanceState) {
// Always call the superclass so it can restore the view hierarchy
super.onRestoreInstanceState(savedInstanceState);
// Restore value of members from saved state
countdown = savedInstanceState.getInt(mcountdown);
Reserve = savedInstanceState.getInt(mReserve);
money = savedInstanceState.getInt(mmoney);
counter = savedInstanceState.getInt(mcounter);
Reserve1 = savedInstanceState.getInt(mReserve1);
HW = savedInstanceState.getInt(mHW);
OTW = savedInstanceState.getInt(mOTW);
HPD = savedInstanceState.getInt(mHPD);
DPPS = savedInstanceState.getInt(mDPPS);
go = savedInstanceState.getInt(mgo);
}
#Override
public void onStart(){
super.onStart();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_pay_tracker, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
public void sendMessage(View view) {
// Calculate pay per second
final double PPS = (HW/3600);
DPPS = (PPS/50);
final double OTPPS = (OTW/3600);
final double DOTPPS = (OTPPS/50);
final double HPDPS = (HPD*3600);
final double DHPDPS = (HPDPS*50);
// Display
final TextView t1 = (TextView) findViewById(R.id.yourpay);
t1.setTextColor(Color.parseColor("#008000"));
final TextView t2 = (TextView) this.findViewById(R.id.payper);
final String result2 = String.format("%.8f", OTPPS);
final String result = String.format("%.8f", PPS);
//if(go != 1){
// go = 1;
t.cancel();
cd.cancel();
t = new Timer();
t.schedule(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable() {
public void run() {
if(DHPDPS==0){
money = (DPPS+Reserve);
Reserve = (money);
String end = String.format("%1f", money);
t1.setText("$" + end);
}else if(counter > DHPDPS && DOTPPS != 0 && DHPDPS != 0){
money = (DOTPPS+Reserve);
Reserve = (money);
String end = String.format("%1f", money);
t1.setText("$" + end);
} else{
money = (DPPS+Reserve);
Reserve = (money);
String end = String.format("%1f", money);
t1.setText("$" + end);
}
counter++;
if(counter == 3000)
t.cancel();
// Display pay per second
if(counter <= DHPDPS || DHPDPS == 0){
t2.setText("Your pay per second is: $"+result);
}else{
t2.setText("Your pay per second is: $"+result2);
}
}
});
}
}, 20, 20);
// Make countdown to overtime display
final Intent intent1 = new Intent(this, PayTracker.class);
// Create the notification
final Notification notification = new Notification(R.drawable.ic_launcher, "Click here to check your pay!", System.currentTimeMillis());
// Create an Intent for the notification to launch
// Create a PendingIntent for the associated Intent
final PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent1, 0);
cd = new Timer();
final TextView count = (TextView) findViewById(R.id.countdown);
convert = (int)HPDPS;
cd.schedule(new TimerTask() {
#Override
public void run() {
runOnUiThread(new Runnable() {
public void run(){
countdown = (convert - Reserve1);
int hours = (countdown/3600);
if(OTPPS != 0 && HPDPS != 0){
count.setText("Seconds Remaining to Overtime: " + countdown + "\nAbout " + hours + " Hours");
Reserve1++;
}
// Set the notification's details
final String end = String.format("%.6f", money);
notification.setLatestEventInfo(getApplicationContext(), "Your Current Pay:", "$"+end, pendingIntent);
// Submit the notification to the system
((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).notify(0, notification);
}
});
}
}, 1000, 1000);
//}
}
#Override
public void onSaveInstanceState(Bundle savedInstanceState) {
// Save the user's current game state
savedInstanceState.putInt(mcountdown, countdown);
savedInstanceState.putDouble(mReserve, Reserve);
savedInstanceState.putDouble(mmoney, money);
savedInstanceState.putDouble(mcounter, counter);
savedInstanceState.putDouble(mReserve1, Reserve1);
savedInstanceState.putDouble(mHW, HW);
savedInstanceState.putDouble(mOTW, OTW);
savedInstanceState.putDouble(mHPD, HPD);
savedInstanceState.putDouble(mDPPS, DPPS);
savedInstanceState.putInt(mgo, go);
// Always call the superclass so it can save the view hierarchy state
super.onSaveInstanceState(savedInstanceState);
}
#Override
public void onDestroy() {
super.onDestroy();
if(t != null)
t.cancel();
if(cd != null)
cd.cancel();
}
}
This is one way to get around that.
static Timer mTimer = null;
onCreate() {
if (mTimer == null)
mTimer = new Timer();
} else {
// You shouldn't have to do nothing because your timer should be running
}
}
Note that there are several issues in general here. The static is basically saying just to create one instance of that object. As a side effect it also tries to reclaim the same memory address. Either way, once your app is in the background it can be cleaned up by the system at any time so your not guaranteed to get your Timer back. There are a bunch of other ways to get around that, but that is out of scope for this question.