Я создаю это приложение, но оно не отправляет уведомление в выбранное время, пожалуйста, может ли кто-нибудь помочь мне решить эту проблему xml файл:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center_horizontal"
tools:context=".MainActivity">
<EditText
android:id="@+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter your task"
android:layout_marginBottom="20dp"/>
<TimePicker
android:id="@+id/timePicker"
android:layout_width="300dp"
android:layout_height="342dp"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_marginTop="30dp">
<Button
android:id="@+id/setBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="set"
android:layout_marginRight="20dp"/>
<Button
android:id="@+id/cancelBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="cancel"/>
</LinearLayout>
и это класс MainActivity для приложения : пакет com.examble.alarmlast; import androidx.appcompat.app.AppCompatActivity;
import android.app.AlarmManager;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TimePicker;
import android.widget.Toast;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity {
private AlarmManager alarmMgr;
private PendingIntent alarmIntent;
Button setbtn;
TimePicker timePicker;
EditText edt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setbtn = findViewById(R.id.setBtn);
edt=findViewById(R.id.editText);
timePicker=findViewById(R.id.timePicker);
final int hour = timePicker.getCurrentHour();
final int minute = timePicker.getCurrentMinute();
setbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//alarmMgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
AlarmManager alarm = (AlarmManager) getSystemService(ALARM_SERVICE);
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
intent.putExtra("todo", edt.getText().toString());
alarmIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
// Set the alarm to start at 8:30 a.m.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY,hour );
calendar.set(Calendar.MINUTE, minute);
// setRepeating() lets you specify a precise custom interval--in this case,
// 20 minutes.
alarm.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000 * 60 * 20,
alarmIntent);
Toast.makeText(MainActivity.this, "Done!", Toast.LENGTH_SHORT).show();
}
});
}
}
, а это класс AlarmReceiver для приложения:
package com.examble.alarmlast;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import androidx.core.app.NotificationCompat;
import androidx.core.app.NotificationManagerCompat;
import static androidx.core.content.ContextCompat.getSystemService;
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String message = intent.getStringExtra("todo");
// When notification is tapped, call MainActivity.
Intent mainIntent = new Intent(context, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, mainIntent, 0);
if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.O)
{
NotificationChannel notificationChannel = new NotificationChannel("n","n",
NotificationManager.IMPORTANCE_DEFAULT);
NotificationManager myNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
myNotificationManager.createNotificationChannel(notificationChannel);
}
// Prepare notification.
NotificationCompat.Builder builder = new NotificationCompat.Builder(context,"n")
.setContentText(message)
.setContentTitle("It's Time!")
.setSmallIcon(android.R.drawable.ic_dialog_info)
.setAutoCancel(true)
.setContentText(message)
.setWhen(System.currentTimeMillis())
.setContentIntent(contentIntent)
.setPriority(Notification.PRIORITY_MAX)
.setDefaults(Notification.DEFAULT_ALL);
// Notify
NotificationManagerCompat notificationManagerCompat = NotificationManagerCompat.from(context);
notificationManagerCompat.notify(999,builder.build());
}
}
AndroidManifast:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.abeer.alarmlast">
<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=".AlarmReceiver" />
</application>
</manifest>