Develop Reference

How to tell when during countDownTimer() method a user presses a button?

I Have countDownTimer() method and want to print a certain toast if the user presses the button when the timer is at 10 or 9 seconds left. I am trying to read the time by reading the textview of the timer in the gameButton() method but it only prints the fail toast and not the pass toast. So why can I not do this? And also how can I get it to work? Thanks.
import android.app.Activity;
import android.os.CountDownTimer;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class GameScreen extends Activity {
private TextView time;
private Button start;
private Button cancel;
private Button gameButton;
private CountDownTimer countDownTimer;
private View.OnClickListener btnClickListener = new View.OnClickListener(){
#Override
public void onClick(View v) {
switch(v.getId()){
case R.id.start_ID :
start();
break;
case R.id.cancel :
cancel();
break;
case R.id.gameButton_ID :
gameButton();
break;
}
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game_screen);
start = (Button) findViewById(R.id.start_ID);
start.setOnClickListener(btnClickListener);
cancel = (Button) findViewById(R.id.cancel);
cancel.setOnClickListener(btnClickListener);
time = (TextView) findViewById(R.id.time);
gameButton = (Button) findViewById(R.id.gameButton_ID);
gameButton.setOnClickListener(btnClickListener);
}
public void start(){
time.setText("15");
countDownTimer = new CountDownTimer(15 * 1000, 1000) {
#Override
public void onTick(long millsUntilFinished){
time.setText("" + millsUntilFinished / 1000);
/* gameButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
//if(time.getText() == "10" || time.getText() == "9" ){
Toast.makeText(new GameScreen(), "This is my Toast message!", Toast.LENGTH_LONG).show();
//}
}
}); */
}
public void onFinish(){
time.setText("Done !");
}
};
countDownTimer.start();
}
private void cancel(){
if(countDownTimer != null){
countDownTimer.cancel();
countDownTimer = null;
}
}
private void gameButton(){
if(time.getText() == "10" || time.getText() == "9" ){
Toast.makeText(getApplicationContext(), "PASS", Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(getApplicationContext(), "FAIL", Toast.LENGTH_SHORT).show();
}
}
}

Use equals method not == operator
time.getText().equals("10") || time.getText().equals("9")
See What is the difference between == vs equals() in Java?

Android app auto increment a value by 1 with some delay

This is a part of an app that I am trying to make. I am trying to make a delay that can be set by the user so after each +1 it delays with 500 milliseconds, but soon I figured that i don't even know how to add a simple build in delay, I tried with delay(1000); it gave me Can not resolve method delay(int) then with sleep(1000); same error, then with TimeUnit.SECONDS.sleep(1); and Thread.sleep(1); nothing worked I am missing something fundamental, maybe I need to import something ? this is the whole program
if (v == swt1){
while (counter<2100000000) {
counter++;
}
scoreText.setText(Integer.toString(counter));
scoreText.setBackgroundColor(Color.BLACK);
}
Activity:
package counter.test.my.simplecount;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Switch;
import android.widget.TextView;
import android.app.Activity;
import android.graphics.Color;
public class MainActivity extends Activity implements OnClickListener {
Button btn1;
Button btn2;
Button btn3;
Switch swt1;
TextView textTitle;
EditText scoreText;
int counter = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btn1 = (Button)findViewById(R.id.button);
btn2 = (Button)findViewById(R.id.button2);
btn3 = (Button)findViewById(R.id.button3);
swt1 = (Switch)findViewById(R.id.switch1);
scoreText = (EditText)findViewById(R.id.editText);
textTitle = (TextView)findViewById(R.id.textView);
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
btn3.setOnClickListener(this);
textTitle.setTextSize(TypedValue.COMPLEX_UNIT_SP, 34);
}
#Override
public void onClick(View v) {
if (v == btn1){
counter++;
scoreText.setText(Integer.toString(counter));
scoreText.setBackgroundColor(Color.CYAN);
}
if (v == btn2){
counter--;
scoreText.setText(Integer.toString(counter));
scoreText.setBackgroundColor(Color.GREEN);
}
if (v == btn3){
counter = 0;
scoreText.setText(Integer.toString(counter));
scoreText.setBackgroundColor(Color.RED);
if (v == swt1){
while (counter<2100000000) {
counter++;
}
scoreText.setText(Integer.toString(counter));
scoreText.setBackgroundColor(Color.RED);
}
}
}
}

You can use Handler() for delay like
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
//Your Aftre delay code
}
},500);
Remember to import this:
import android.os.Handler;

Use the "Handler" with "Runnable" to auto increment a value continuously at some time delay. Here i used "1sec" time dealy.
Find below code snippet for your requirement.
Runnable runnable;
Handler handler;
int delayTimeSec = 1000; //1 Sec
handler = new Handler();
runnable = new Runnable(){
#Override
public void run() {
// Your auto increment logic...
handler.postDelayed(runnable, delayTimeSec);
}
}
handler.postDelayed(runnable, delayTimeSec);

Use thread instead of handler if you have got background tasks.
new Thread(new Runnable() {
#Override
public void run() {
///background calculations
try {
Thread.sleep(1000L);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
runOnUiThread(new Runnable() {
#Override
public void run() {
//main thread task to update user interface
}
});
}
}).start();

Android CountDown Timer in UI Thread

I try to code a CountDownTimer which can be repeated several times. My code works fine... But just one time. I don't understand why the repeated action is not done :-(
Here is my code :
package com.bigmat.MyTimer;
import android.app.Activity;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.View;
import android.widget.*;
public class MainActivity extends Activity {
private TextView inputDuration;
private TextView tvCdTimer;
private Button start;
CountDownTimer myCdTimer;
NumberPicker npDuration;
CheckBox isRepeat;
TextView tvRepeat;
int nbRepeat;
int count;
/**
* Called when the activity is first created.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
inputDuration = (TextView) findViewById(R.id.tvInputDuration);
tvCdTimer = (TextView) findViewById(R.id.tvCdTimer);
start = (Button) findViewById(R.id.btStart);
npDuration = (NumberPicker) findViewById(R.id.npDuration);
npDuration.setMaxValue(60);
npDuration.setMinValue(0);
isRepeat = (CheckBox) findViewById(R.id.cbRepeat);
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
count=0;
tvRepeat = (TextView) findViewById(R.id.nbRepeat);
if (tvRepeat.getText().toString().length() > 0) {
nbRepeat = Integer.parseInt(tvRepeat.getText().toString());
} else {
nbRepeat = 1;
}
runTimer();
}
});
}
public void runTimer(){
Log.i("CDT", "value of npDuration is : "+npDuration.getValue());
if (npDuration.getValue() > 0 && nbRepeat > 0) {
// create a timer
myCdTimer = new CountDownTimer(npDuration.getValue()*1000, 1000) {
public void onTick(long millisUntilFinished) {
tvCdTimer.setText("" + millisUntilFinished / 1000);
}
public void onFinish() {
tvCdTimer.setText("Done ! ");
try {
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Ringtone r = RingtoneManager.getRingtone(getApplicationContext(), notification);
r.play();
} catch (Exception e) {
e.printStackTrace();
}
count++;
//condition
if (count < nbRepeat) {
Log.i("MyTimer", "value of nbRepeat :" + nbRepeat + " value of count : " + count);
myCdTimer.cancel();
myCdTimer.start();
}
}
}.start();
} else {
Toast.makeText(getApplicationContext(), "Timer is set on 0 seconds !!!", Toast.LENGTH_LONG).show();
}
}
}
Thanks in advance!

How to stop a thread(progressbar) in android

i have made a countdown timer using progressbar and a thread,Now i want to stop the progress at the same time when user clicks on a button.I have tried thread.stop(),but it says there is .no such method,I have tried interruot method too with no luck,So can any buddy please help me by viewing my code.My code is as below:
code
package com.amar.lyricalgenius;
import com.amar.lyricalgenius.LoadingActivity.MyCountDownTimer;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class SinglePlayerOption extends Activity implements OnClickListener {
// visible gone
private int progressStatus = 0;
private Handler handler = new Handler();
Intent i;
TextView text_player_second;
ImageView vs_word;
ImageView player_second_pic, player_second_box;
ImageButton red_point1;
TextView text_number_pt1;
TextView text_number1;
ProgressBar pg_loading;
private CountDownTimer countDownTimer;
TextView timer_text;
private final long startTime = 8 * 1000;
private final long interval = 1 * 1000;
Button opt_1, opt_2, opt_3, opt_4;
Thread splashThread;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.single_player_option);
init();
}
private void init() {
// TODO Auto-generated method stub
text_player_second = (TextView) findViewById(R.id.text_player_second);
vs_word = (ImageView) findViewById(R.id.vs_word);
player_second_pic = (ImageView) findViewById(R.id.player_second_pic);
player_second_box = (ImageView) findViewById(R.id.player_second_box);
red_point1 = (ImageButton) findViewById(R.id.red_point1);
text_number_pt1 = (TextView) findViewById(R.id.text_number_pt1);
text_number1 = (TextView) findViewById(R.id.text_number1);
opt_1 = (Button) findViewById(R.id.option_1);
opt_2 = (Button) findViewById(R.id.option_2);
opt_3 = (Button) findViewById(R.id.option_3);
opt_4 = (Button) findViewById(R.id.option_4);
opt_1.setOnClickListener(this);
opt_2.setOnClickListener(this);
opt_3.setOnClickListener(this);
opt_4.setOnClickListener(this);
text_player_second.setVisibility(View.GONE);
vs_word.setVisibility(View.GONE);
player_second_pic.setVisibility(View.GONE);
player_second_box.setVisibility(View.GONE);
red_point1.setVisibility(View.GONE);
text_number_pt1.setVisibility(View.GONE);
text_number1.setVisibility(View.GONE);
countDownTimer = new MyCountDownTimer(startTime, interval);
timer_text.setText(timer_text.getText()
+ String.valueOf(startTime / 1000));
countDownTimer.start();
new Thread(new Runnable() {
public void run() {
while (progressStatus < 100) {
progressStatus += 1;
// Update the progress bar and display the
// current value in the text view
handler.post(new Runnable() {
public void run() {
pg_loading.setProgress(progressStatus);
}
});
try {
// Sleep for 200 milliseconds.
// Just to display the progress slowly
Thread.sleep(62);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
splashThread = new Thread() {
public void run() {
try {
sleep(6000);
// Utils.systemUpgrade(SplashActivity.this);
} catch (InterruptedException e) {
e.printStackTrace();
}
Intent intent = null;
intent = new Intent(SinglePlayerOption.this,
NoResponseActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
startActivity(intent);
finish();
}
};
splashThread.start();
}
#SuppressWarnings("deprecation")
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent i;
switch (v.getId()) {
case R.id.option_1:
splashThread.stop();
countDownTimer.onFinish();
Toast.makeText(SinglePlayerOption.this,
timer_text.getText().toString(), 1).show();
i = new Intent(SinglePlayerOption.this,
DialogLeaderboardActivity.class);
startActivity(i);
break;
}
}
public class MyCountDownTimer extends CountDownTimer {
public MyCountDownTimer(long startTime, long interval) {
super(startTime, interval);
}
#Override
public void onFinish() {
timer_text.setText("Time's up!");
}
#Override
public void onTick(long millisUntilFinished) {
timer_text.setText("" + millisUntilFinished / 1000);
}
}
}

Thread th = new Thread(new Runnable() {
public void run() { ....
th.start();//starts
th.interrupt();//this stops.
and use
while (progressStatus < 100 && (!Thread.currentThread().isInterrupted())){....
instead of
while (progressStatus < 100) {....

Now i want to stop the progress at the same time when user clicks on
a button.I have tried thread.stop()
Thread.stop() is deprecated and you should not use it. The basic concept to understand is that a thread terminates is execution when the last line of code of his run method is executed. In the case of your "ProgressBar Thread*, when the user press the button, you have to set the exit condition of your while-loop (progressStatus = 100) in order to make it terminate

Change icon by broadcastreceiver

I've been looking for a way to change an icon in my view by broadcast receiver, but I'm not managing to find a way to do so.
First, I created a receiver:
public class BroadcastChangeReceiver extends BroadcastReceiver{
#Override
public void onReceive(Context context, final Intent intent) {
NetworkStatus conStatus = new NetworkActivity().getConnectionType(context);
String status = "Connection type: " + conStatus.getType().toString() + " -- Internet: " + conStatus.isConnected();
Toast.makeText(context, status, Toast.LENGTH_LONG).show();
}
}
it works fine when a network shows up. But now I need to check if there is a connectivity from time to time. To make that, I created a method that will ping my service that is somewhere in the internet each 5 seconds, but I don`t know how, from the broadcast receiver, will I change the icon in my activity. I cant use findViewById. This is my sample code to change and Icon (which is not working):
private void startInternetMonitoring(Context context) {
ScheduledExecutorService scheduleTaskExecutor = Executors
.newScheduledThreadPool(5);
// Run task every 5 seconds
scheduleTaskExecutor.scheduleAtFixedRate(new Runnable() {
int count = 0;
public void run() {
ImageView img = (ImageView) findViewById(R.id.networkStatusIcon);
switch (count) {
case 0:
img.setImageResource(R.drawable.connecting_icon);
count = 1;
break;
case 1:
img.setImageResource(R.drawable.offline_icon);
count = 2;
break;
case 2:
img.setImageResource(R.drawable.online_icon);
count = 0;
break;
}
}
}, 0, 5000, TimeUnit.MILLISECONDS);
}
any help or tips will be appreciated.

First off, I think a TimerTask is a better use for this case.
From http://android-er.blogspot.com/2013/12/example-of-using-timer-and-timertask-on.html
package com.example.androidtimer;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Timer;
import java.util.TimerTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.TextView;
import android.app.Activity;
public class MainActivity extends Activity {
CheckBox optSingleShot;
Button btnStart, btnCancel;
TextView textCounter;
Timer timer;
MyTimerTask myTimerTask;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
optSingleShot = (CheckBox)findViewById(R.id.singleshot);
btnStart = (Button)findViewById(R.id.start);
btnCancel = (Button)findViewById(R.id.cancel);
textCounter = (TextView)findViewById(R.id.counter);
btnStart.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View arg0) {
if(timer != null){
timer.cancel();
}
//re-schedule timer here
//otherwise, IllegalStateException of
//"TimerTask is scheduled already"
//will be thrown
timer = new Timer();
myTimerTask = new MyTimerTask();
if(optSingleShot.isChecked()){
//singleshot delay 1000 ms
timer.schedule(myTimerTask, 1000);
}else{
//delay 1000ms, repeat in 5000ms
timer.schedule(myTimerTask, 1000, 5000);
}
}});
btnCancel.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
if (timer!=null){
timer.cancel();
timer = null;
}
}
});
}
class MyTimerTask extends TimerTask {
#Override
public void run() {
Calendar calendar = Calendar.getInstance();
SimpleDateFormat simpleDateFormat =
new SimpleDateFormat("dd:MMMM:yyyy HH:mm:ss a");
final String strDate = simpleDateFormat.format(calendar.getTime());
runOnUiThread(new Runnable(){
#Override
public void run() {
textCounter.setText(strDate);
}});
}
}
}
The issue seems to be that you "cant use findViewById".
Perhaps move your broadcastreceiver into your activity and register it there. That way you have access to you activity and views from the receiver when it is called.