Android and iOs tips

Question

I have the following code which should change the textview every second but only does every 2 or even every 4 seconds:


        final TextView tv = (TextView) findViewById(R.id.textView1);

    new CountDownTimer(remain, 1000)
    {
        @Override
        public void onFinish()
        {
            tv.setText("Done");
        }

        @Override
        public void onTick(long millisUntilFinished)
        {
            tv.setText(timeCalculate(millisUntilFinished / 1000));
        }
    }.start();

What am I doing wrong?

Answer 1 · 2013-09-25 09:28:06Z

You can use TranslateAnimation. TranslateAnimation uses deltas, so to calculate the position of 50px from the top of the screen, subtract the top of the view & add 50. In this example, I set the toY by adding some value to the fromY. Here's the code:


int fromY = 50 - view.getTop();
int toY = fromY + someValue;
TranslateAnimation animation = new TranslateAnimation(0, 0, fromY, toY);
animation.setDuration(someDuration);
view.startAnimation(animation);

Hope this helps :)

Answer 2 · 2013-09-25 09:27:30Z

Every 30 seconds when you get the new locations you can compare it with the previous location to see if there is any difference in location and determine if the device is travelling.

Answer 3 · 2013-09-25 09:28:08Z

You can write code in onLocationChanged() method. There you will get new latitude longitude each and everytime when device changed its position. OnLocationChange() method called only if location has been changed. But if you want some specific distance wise calculations then you have to calculate distance between older lat-long and newer one. You can find distance using lat-long.

Answer 4 · 2013-09-25 09:29:31Z

As the GPS signal recieved can vary even it's in the same position, you can't just compare the new location with the old one. I would use something like the following code


            double venueLat =latitude
            double venueLng = longitude

            double latDistance = Math.toRadians(userLat - venueLat);
            double lngDistance = Math.toRadians(userLng - venueLng);
            double a = (Math.sin(latDistance / 2) * Math.sin(latDistance / 2)) +
                            (Math.cos(Math.toRadians(userLat))) *
                            (Math.cos(Math.toRadians(venueLat))) *
                            (Math.sin(lngDistance / 2)) *
                            (Math.sin(lngDistance / 2));

            double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));

            double dist = 6371 * c;             
            if (dist<1){ (in km, you can use 0.1 for metres etc.)
                /* Include your code here to display your records */ 
            }

Answer 5 · 2013-09-23 06:29:40Z

try this,


Handler mHandler = new Handler() {
    public void handleMessage(android.os.Message msg) {
      Intent i = new Intent(FirstActivity.this,SeconActivity.class);
      startActivity(i);
    };
};
mHandler.sendEmptyMessageDelayed(0, 3000);

Answer 6 · 2013-09-23 06:30:25Z

You can make slash Activity. Try this code....hop your problem will solve


public class SplashActivity extends Activity {

private final int SPLASH_DISPLAY_LENGHT = 2000;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.splash_screen);

    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            /* Create an Intent that will start the Menu-Activity. */
            Intent mainIntent = new Intent(SplashActivity.this, NightClubMain.class);
            SplashActivity.this.startActivity(mainIntent);
            SplashActivity.this.finish();
        }
    }, SPLASH_DISPLAY_LENGHT);
}

Answer 7 · 2013-09-23 06:30:44Z

You can use Timer for that.


Timer myTimer;

startTimerTask();

public void startTimerTask() {
        MyTimerTask myTask = new MyTimerTask();
        myTimer = new Timer();
        myTimer.schedule(myTask, 0, 3000);

    }
@Override
    public void onPause() {
        super.onPause();
        try {
            myTimer.cancel();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    @Override
    public void onStop() {
        super.onStop();
        try {
            myTimer.cancel();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

class MyTimerTask extends TimerTask {

        public void run() {
            try {
                getActivity().runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
//                      

                        Do YOUR STUFF HERE
                    }

                });
            } catch (Exception e) {
                e.printStackTrace();
            }

        }
    }

Answer 8 · 2013-09-23 07:24:39Z

I'm sure that this information is in the Google Play regulations. 25$ is all costs of the GP membership. All others funtions are free.

Answer 9 · 2013-09-23 07:32:13Z


       There is a one time $25 registration fee charged for a Google Play Developer Console account. i guess there is no validity for this .They charge this fee to encourage higher quality products on Google Play (ie. less products with SPAM).

Points to Remember:


The Google Wallet Merchant Center account which you need to link to your Google Play Developer Console account can only be linked once from within the Developer Console interface.
Classic Google Checkout merchant accounts are used to sell online on any website. These accounts are not related to selling apps on Google Play, and can be created only for sellers in US and UK. However, if you already have a classic Google Checkout account, you are free to link it to your Google Play Developer Console account by clicking on the link provided within the Developer Console interface.
Important: Once accounts are linked, they cannot be removed, changed or updated. If you need to do this, please know that you will have to sign up for a new developer account by paying the fee of $25 US.
If you are not located in any of the supported locations for merchants and do not own the required bank account for receiving payments, Google may not be able to pay for the sales in that account by any other means.

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