Android 有每日通知的应用
Android app with daily notification
我正在制作一个 android 应用程序....我一直在尝试为一天中特定时间的每日通知集编写代码。起初，我真的以为这会是一件容易的事，几乎 Play 商店中的每个应用程序都有定时通知。但是反复搜索后，我找到的所有方法和 Youtube 教程都不适合我。问题可能出在我身上，但我不知道它是什么。我所需要的只是一个简单、优雅、易于理解的方法（如果有这样的东西的话）。任何帮助将不胜感激。
我所做的所有搜索让我走到了这一步......但仍然没有任何运气：
此方法在我的 MainActivity class 中，仅在应用程序首次启动时调用以设置闹钟...
private void alarmMethod() {
Intent myIntent = new Intent(this, NotifyService.class);
AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
pendingIntent = PendingIntent.getService(this, 0, myIntent, 0);
// Set the alarm to start at approximately 2:00 p.m.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 14);
// With setInexactRepeating(), you have to use one of the AlarmManager interval
// constants--in this case, AlarmManager.INTERVAL_DAY.
alarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pendingIntent);
Toast.makeText(MainActivity.this, "Start Alarm", Toast.LENGTH_LONG)
.show();
这是我的 NotifyService class:
package com.OHS.example;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
public class NotifyService extends Service {
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
Uri sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationManager mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(), MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent1, 0);
Notification mNotify = new NotificationCompat.Builder(this)
.setContentTitle("Title")
.setContentText("Hello World!")
.setSmallIcon(R.drawable.ic_launcher)
.setContentIntent(pIntent)
.setSound(sound)
.build();
mNM.notify(1, mNotify);
}
}
您可以使用 AlarmManager 安排每日通知。文档 here 提供了很好的解释和示例。
设置闹钟。
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getService(this, 0,
new Intent(this, MainService.class),
PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
// set the triggered time to currentHour:08:00 for testing
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MINUTE, 8);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), 0, pendingIntent);
报警处理服务。
public class MainService extends IntentService {
public MainService() {
super("mainservice");
}
public MainService(String name) {
super(name);
}
/*
* (non-Javadoc)
*
* @see android.app.IntentService#onHandleIntent(android.content.Intent)
*/
@Override
protected void onHandleIntent(Intent intent) {
showNotification();
}
private void showNotification() {
Uri soundUri = RingtoneManager
.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Notification notification = new NotificationCompat.Builder(this)
.setContentTitle("Alarm title")
.setContentText("Alarm text")
.setContentIntent(
PendingIntent.getActivity(this, 0, new Intent(this,
SecondActivity.class),
PendingIntent.FLAG_UPDATE_CURRENT))
.setSound(soundUri).setSmallIcon(R.drawable.ic_launcher)
.build();
NotificationManagerCompat.from(this).notify(0, notification);
}
}
如 alijandro 所说，如果你想在特定时间收到每日通知，你可以使用 AlarmManager 来安排它并在那个时间显示通知，或者如果你想从服务器获取数据，发送 http 请求以检索您的数据并向用户显示通知。
但是如果你想随时收到推送通知，你可以使用 GCM (Google Cloud Messaging)。看看这个doc.
试试这个代码。
XML布局：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/TextView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Android Alarm Example:\n\rSetup an alarm event after 10 seconds from the current time. So just press Setup Alarm button and wait for 10 seconds. You can see a toast message when your alarm time will be reach." />
<Button
android:id="@+id/setAlarm"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/TextView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="25dp"
android:onClick="onClickSetAlarm"
android:text="Set Alarm" />
主要 Activity :
public class MainActivity extends Activity {
//used for register alarm manager
PendingIntent pendingIntent;
//used to store running alarmmanager instance
AlarmManager alarmManager;
//Callback function for Alarmmanager event
BroadcastReceiver mReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Register AlarmManager Broadcast receive.
RegisterAlarmBroadcast();
}
public void onClickSetAlarm(View v)
{
//Get the current time and set alarm after 10 seconds from current time
// so here we get
alarmManager.set( AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 10000 , pendingIntent );
}
private void RegisterAlarmBroadcast()
{
Log.i("Alarm Example:RegisterAlarmBroadcast()", "Going to register Intent.RegisterAlramBroadcast");
//This is the call back function(BroadcastReceiver) which will be call when your
//alarm time will reached.
mReceiver = new BroadcastReceiver()
{
private static final String TAG = "Alarm Example Receiver";
@Override
public void onReceive(Context context, Intent intent)
{
Log.i(TAG,"BroadcastReceiver::OnReceive() >>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
Toast.makeText(context, "Congrats!. Your Alarm time has been reached", Toast.LENGTH_LONG).show();
}
};
// register the alarm broadcast here
registerReceiver(mReceiver, new IntentFilter("com.myalarm.alarmexample") );
pendingIntent = PendingIntent.getBroadcast( this, 0, new Intent("com.myalarm.alarmexample"),0 );
alarmManager = (AlarmManager)(this.getSystemService( Context.ALARM_SERVICE ));
}
private void UnregisterAlarmBroadcast()
{
alarmManager.cancel(pendingIntent);
getBaseContext().unregisterReceiver(mReceiver);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
protected void onDestroy() {
unregisterReceiver(mReceiver);
super.onDestroy();
}
}
希望这对您有所帮助，这对我有用。
您可以随时计算和设置要触发警报的时间。
快乐编码!!
我正在制作一个 android 应用程序....我一直在尝试为一天中特定时间的每日通知集编写代码。起初，我真的以为这会是一件容易的事，几乎 Play 商店中的每个应用程序都有定时通知。但是反复搜索后，我找到的所有方法和 Youtube 教程都不适合我。问题可能出在我身上，但我不知道它是什么。我所需要的只是一个简单、优雅、易于理解的方法（如果有这样的东西的话）。任何帮助将不胜感激。
我所做的所有搜索让我走到了这一步......但仍然没有任何运气：
此方法在我的 MainActivity class 中，仅在应用程序首次启动时调用以设置闹钟...
private void alarmMethod() {
Intent myIntent = new Intent(this, NotifyService.class);
AlarmManager alarmMgr = (AlarmManager) getSystemService(ALARM_SERVICE);
pendingIntent = PendingIntent.getService(this, 0, myIntent, 0);
// Set the alarm to start at approximately 2:00 p.m.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 14);
// With setInexactRepeating(), you have to use one of the AlarmManager interval
// constants--in this case, AlarmManager.INTERVAL_DAY.
alarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, pendingIntent);
Toast.makeText(MainActivity.this, "Start Alarm", Toast.LENGTH_LONG)
.show();
这是我的 NotifyService class:
package com.OHS.example;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
public class NotifyService extends Service {
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
Uri sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationManager mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
Intent intent1 = new Intent(this.getApplicationContext(), MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent1, 0);
Notification mNotify = new NotificationCompat.Builder(this)
.setContentTitle("Title")
.setContentText("Hello World!")
.setSmallIcon(R.drawable.ic_launcher)
.setContentIntent(pIntent)
.setSound(sound)
.build();
mNM.notify(1, mNotify);
}
}
您可以使用 AlarmManager 安排每日通知。文档 here 提供了很好的解释和示例。
设置闹钟。
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
PendingIntent pendingIntent = PendingIntent.getService(this, 0,
new Intent(this, MainService.class),
PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
// set the triggered time to currentHour:08:00 for testing
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MINUTE, 8);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), 0, pendingIntent);
报警处理服务。
public class MainService extends IntentService {
public MainService() {
super("mainservice");
}
public MainService(String name) {
super(name);
}
/*
* (non-Javadoc)
*
* @see android.app.IntentService#onHandleIntent(android.content.Intent)
*/
@Override
protected void onHandleIntent(Intent intent) {
showNotification();
}
private void showNotification() {
Uri soundUri = RingtoneManager
.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Notification notification = new NotificationCompat.Builder(this)
.setContentTitle("Alarm title")
.setContentText("Alarm text")
.setContentIntent(
PendingIntent.getActivity(this, 0, new Intent(this,
SecondActivity.class),
PendingIntent.FLAG_UPDATE_CURRENT))
.setSound(soundUri).setSmallIcon(R.drawable.ic_launcher)
.build();
NotificationManagerCompat.from(this).notify(0, notification);
}
}
如 alijandro 所说，如果你想在特定时间收到每日通知，你可以使用 AlarmManager 来安排它并在那个时间显示通知，或者如果你想从服务器获取数据，发送 http 请求以检索您的数据并向用户显示通知。
但是如果你想随时收到推送通知，你可以使用 GCM (Google Cloud Messaging)。看看这个doc.
试试这个代码。 XML布局：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/TextView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Android Alarm Example:\n\rSetup an alarm event after 10 seconds from the current time. So just press Setup Alarm button and wait for 10 seconds. You can see a toast message when your alarm time will be reach." />
<Button
android:id="@+id/setAlarm"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/TextView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="25dp"
android:onClick="onClickSetAlarm"
android:text="Set Alarm" />
主要 Activity :
public class MainActivity extends Activity {
//used for register alarm manager
PendingIntent pendingIntent;
//used to store running alarmmanager instance
AlarmManager alarmManager;
//Callback function for Alarmmanager event
BroadcastReceiver mReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Register AlarmManager Broadcast receive.
RegisterAlarmBroadcast();
}
public void onClickSetAlarm(View v)
{
//Get the current time and set alarm after 10 seconds from current time
// so here we get
alarmManager.set( AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 10000 , pendingIntent );
}
private void RegisterAlarmBroadcast()
{
Log.i("Alarm Example:RegisterAlarmBroadcast()", "Going to register Intent.RegisterAlramBroadcast");
//This is the call back function(BroadcastReceiver) which will be call when your
//alarm time will reached.
mReceiver = new BroadcastReceiver()
{
private static final String TAG = "Alarm Example Receiver";
@Override
public void onReceive(Context context, Intent intent)
{
Log.i(TAG,"BroadcastReceiver::OnReceive() >>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
Toast.makeText(context, "Congrats!. Your Alarm time has been reached", Toast.LENGTH_LONG).show();
}
};
// register the alarm broadcast here
registerReceiver(mReceiver, new IntentFilter("com.myalarm.alarmexample") );
pendingIntent = PendingIntent.getBroadcast( this, 0, new Intent("com.myalarm.alarmexample"),0 );
alarmManager = (AlarmManager)(this.getSystemService( Context.ALARM_SERVICE ));
}
private void UnregisterAlarmBroadcast()
{
alarmManager.cancel(pendingIntent);
getBaseContext().unregisterReceiver(mReceiver);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
protected void onDestroy() {
unregisterReceiver(mReceiver);
super.onDestroy();
}
}
希望这对您有所帮助，这对我有用。 您可以随时计算和设置要触发警报的时间。 快乐编码!!