I have design one application where I have an async task to get a stri

1.	I have design one application where I have an async task to get a string value and this value I am using to update the textView in OnPostExecute(). But when I am running it I found MemoryLeak issue. Can you please tell me how to resolve that?
Answer» Here we have to create an application that schedules a task and send a notification. For that, we need to execute a particular JOB daily at a specific time defined by the user. We can do it using the AlarmManager in android. Android has a built-in AlarmManager class which makes SCHEDULING tasks. AlarmManager PROVIDES access to system-level alarm services. This gives a way to perform any operations outside the lifetime of your application. So we can trigger events or actions even when your application is not running. Step to schedule task is mentioned below: We need a Broadcast Receiver to FIRE the alarm when our app is not running. We also need to register this BroadcastReceiver in the Manifest file. For Setting Alarm using Alarm Manager Class we will declare a PendingIntent and an AlarmManager variable In Activity.java. The PendingIntent will be used to set and cancel the alarms. We used the setRepeating() method to set up a RECURRING alarm. Please find below code for more detail: // check task is scheduled or not boolean alarmUp = (PendingIntent.getBroadcast(this, 0, new Intent("com.example.dummy.AlarmReceiver"), PendingIntent.FLAG_NO_CREATE) != null); if ( !alarmUp) { Intent intent = new Intent("com.example.dummy.AlarmReceiver"); intent.putExtra("activate", true); PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(System.currentTimeMillis()); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 1); calendar.set(Calendar.SECOND, 0); AlarmManager alarmManager = (AlarmManager) this.getSystemService(this.ALARM_SERVICE); alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent); calendar = Calendar.getInstance(); calendar.setTimeInMillis(System.currentTimeMillis()); calendar.set(Calendar.HOUR_OF_DAY, 7); calendar.set(Calendar.MINUTE, 0); alarmManager = (AlarmManager) this.getSystemService(this.ALARM_SERVICE); PendingIntent pendingIntent2 = PendingIntent.getBroadcast(this, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT); alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent2);

I have design one application where I have an async task to get a string value and this value I am using to update the textView in OnPostExecute(). But when I am running it I found MemoryLeak issue. Can you please tell me how to resolve that?

Answer»

Here we have to create an application that schedules a task and send a notification. For that, we need to execute a particular JOB daily at a specific time defined by the user. We can do it using the AlarmManager in android. Android has a built-in AlarmManager class which makes SCHEDULING tasks. AlarmManager PROVIDES access to system-level alarm services. This gives a way to perform any operations outside the lifetime of your application. So we can trigger events or actions even when your application is not running. Step to schedule task is mentioned below:

We need a Broadcast Receiver to FIRE the alarm when our app is not running.
We also need to register this BroadcastReceiver in the Manifest file.
For Setting Alarm using Alarm Manager Class we will declare a PendingIntent and an AlarmManager variable In Activity.java. The PendingIntent will be used to set and cancel the alarms.
We used the setRepeating() method to set up a RECURRING alarm.

Please find below code for more detail:

// check task is scheduled or not boolean alarmUp = (PendingIntent.getBroadcast(this, 0, new Intent("com.example.dummy.AlarmReceiver"), PendingIntent.FLAG_NO_CREATE) != null); if ( !alarmUp) { Intent intent = new Intent("com.example.dummy.AlarmReceiver"); intent.putExtra("activate", true); PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(System.currentTimeMillis()); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 1); calendar.set(Calendar.SECOND, 0); AlarmManager alarmManager = (AlarmManager) this.getSystemService(this.ALARM_SERVICE); alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent); calendar = Calendar.getInstance(); calendar.setTimeInMillis(System.currentTimeMillis()); calendar.set(Calendar.HOUR_OF_DAY, 7); calendar.set(Calendar.MINUTE, 0); alarmManager = (AlarmManager) this.getSystemService(this.ALARM_SERVICE); PendingIntent pendingIntent2 = PendingIntent.getBroadcast(this, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT); alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent2);

I have design one application where I have an async task to get a string value and this value I am using to update the textView in OnPostExecute(). But when I am running it I found MemoryLeak issue. Can you please tell me how to resolve that?

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