भविष्य की विशिष्ट तारीख के लिए Android नोटिफिकेशन सेट करना
यह उदाहरण दर्शाता है कि भविष्य की विशिष्ट तारीख के लिए Android नोटिफिकेशन कैसे सेट किया जाता है।
चरण 1 - नया प्रोजेक्ट बनाएं
Android Studio में File → New Project पर जाएं और नया प्रोजेक्ट बनाने के लिए सभी आवश्यक विवरण भरें।
चरण 2 - res/layout/activity_main.xml में कोड जोड़ें
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="https://schemas.android.com/apk/res/android"
xmlns:tools="https://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
tools:context=".MainActivity">
<TextView
android:id="@+id/tvDate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Select Date"
android:onClick="setDate"
android:padding="16dp" />
</RelativeLayout>
चरण 3 - src/MainActivity.java में कोड जोड़ें
package app.tutorialspoint.com.notifyme;
import android.app.AlarmManager;
import android.app.DatePickerDialog;
import android.app.Notification;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
public class MainActivity extends AppCompatActivity {
public static final String NOTIFICATION_CHANNEL_ID = "10001";
private final static String default_notification_channel_id = "default";
Button btnDate;
final Calendar myCalendar = Calendar.getInstance();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnDate = findViewById(R.id.btnDate);
}
private void scheduleNotification(Notification notification, long delay) {
Intent notificationIntent = new Intent(this, MyNotificationPublisher.class);
notificationIntent.putExtra(MyNotificationPublisher.NOTIFICATION_ID, 1);
notificationIntent.putExtra(MyNotificationPublisher.NOTIFICATION, notification);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
assert alarmManager != null;
alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, delay, pendingIntent);
}
private Notification getNotification(String content) {
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, default_notification_channel_id);
builder.setContentTitle("Scheduled Notification");
builder.setContentText(content);
builder.setSmallIcon(R.drawable.ic_launcher_foreground);
builder.setAutoCancel(true);
builder.setChannelId(NOTIFICATION_CHANNEL_ID);
return builder.build();
}
DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
updateLabel();
}
};
public void setDate(View view) {
new DatePickerDialog(MainActivity.this, date,
myCalendar.get(Calendar.YEAR),
myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)).show();
}
private void updateLabel() {
String myFormat = "dd/MM/yy";
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.getDefault());
Date date = myCalendar.getTime();
btnDate.setText(sdf.format(date));
scheduleNotification(getNotification(btnDate.getText().toString()), date.getTime());
}
}
चरण 4 - src/MyNotificationPublisher.java में कोड जोड़ें
package app.tutorialspoint.com.notifyme;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import static app.tutorialspoint.com.notifyme.MainActivity.NOTIFICATION_CHANNEL_ID;
public class MyNotificationPublisher extends BroadcastReceiver {
public static String NOTIFICATION_ID = "notification-id";
public static String NOTIFICATION = "notification";
public void onReceive(Context context, Intent intent) {
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = intent.getParcelableExtra(NOTIFICATION);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "NOTIFICATION_CHANNEL_NAME", importance);
assert notificationManager != null;
notificationManager.createNotificationChannel(notificationChannel);
}
int id = intent.getIntExtra(NOTIFICATION_ID, 0);
assert notificationManager != null;
notificationManager.notify(id, notification);
}
}
चरण 5 - AndroidManifest.xml में कोड जोड़ें
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="https://schemas.android.com/apk/res/android"
package="app.tutorialspoint.com.notifyme">
<uses-permission android:name="android.permission.VIBRATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".MyNotificationPublisher" />
</application>
</manifest>
एप्लिकेशन चलाएं
अपने Android डिवाइस को कंप्यूटर से कनेक्ट करें। Android Studio से ऐप चलाएं और अपने मोबाइल डिवाइस पर डिफ़ॉल्ट स्क्रीन देखें।
