我是android的新手。今天我尝试使用AlarmManage作为我的Reminder应用程序，允许用户输入小时和分钟来显示通知，我有一些问题。 1.第一个问题是当通知出现时，虽然我已经设置声音默认通知并为我的手机设置允许声音，但它只是振动并且没有声音。 2.当我关闭应用程序时，如果我触摸通知，MainActivity将显示，AlarmManager再次工作，使我的应用程序再次显示通知。但是，如果我在应用程序打开时触摸通知，则通知不会显示。所以我希望我的应用程序只是一次通知。我怎么能这样做？ 3.虽然我设定了提醒时间，但是当我关闭申请时，有时候我的电话会在我从未设置的时候显示我提醒申请的通知。我该如何解决这个问题？
MyAlarmService
private NotificationManager mManager;
@Override
public IBinder onBind(Intent arg0)
{
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate()
{
// TODO Auto-generated method stub
super.onCreate();
}
@SuppressWarnings("static-access")
@Override
public void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
// Toast.makeText(this, "I'm running", Toast.LENGTH_SHORT).show();
long[] v = {500,1000};
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setVibrate(v)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setSmallIcon(R.drawable.ic_remind)
.setContentTitle("My notification")
.setContentText("This is a test message!");
mBuilder.setSound(Settings.System.DEFAULT_NOTIFICATION_URI);
mBuilder.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
mBuilder.setAutoCancel(true);
Intent intent1 = new Intent(this.getApplicationContext(),MainActivity.class);
intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(MainActivity.class);
stackBuilder.addNextIntent(intent1);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity( this.getApplicationContext(),0, intent1,PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(pendingNotificationIntent);
mManager =(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mManager.notify(0, mBuilder.build());
}
@Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
接收机
public void onReceive(Context context, Intent intent)
{
Intent service1 = new Intent(context, MyAlarmService.class);
context.startService(service1);
}
MainActivity
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText edt_hours = (EditText)findViewById(R.id.edt_hour);
final EditText edt_minutes = (EditText)findViewById(R.id.edt_minutes);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, Integer.parseInt(edt_hours.getText().toString()));
calendar.set(Calendar.MINUTE, Integer.parseInt(edt_minutes.getText().toString()));
//calendar.set(Calendar.SECOND,0);
Intent myIntent = new Intent(MainActivity.this, MyReceiver.class);
pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, myIntent,0);
alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
}
});
} //end onCre
答案 0 :(得分：3)
这是我的示例代码。我想它会对你有帮助。
MainActivity
public static int NOW_NOTIFICATION = 101;
Intent intent = new Intent(MainActivity.this, NotificationReceiver.class);
intent.putExtra(NotificationReceiver.NOTIFICATION_MESSAGE, "Sample Alert");
PendingIntent pendingIntent = PendingIntent.getBroadcast(
MainActivity.this, NOW_NOTIFICATION, intent, PendingIntent.FLAG_ONE_SHOT);
cancelNotification(NOW_NOTIFICATION);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()
+ (2 * 1000), pendingIntent);
取消通知：
public void cancelNotification(int requestCode) {
try {
Intent notificationIntent = new Intent(getApplicationContext(), NotificationReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), requestCode, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
NotificationReceiver：
public class NotificationReceiver extends BroadcastReceiver {
public static String NOTIFICATION_MESSAGE = "notificationMessage";
@Override
public void onReceive(Context context, Intent intent) {
String message = intent.getStringExtra(NOTIFICATION_MESSAGE);
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
//Define sound URI
Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent notificationIntent = new Intent(context, EmptyActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
final DateTime dateTime = DateTime.now();
int color = 0xffffaa00;
// int color1 = context.getColor(R.color.notificatinBackgroundColor);
NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
builder.setSmallIcon(R.drawable.festi_push_message_small);
builder.setContentIntent(pendingIntent);
builder.setContentTitle("Notification Sample");
builder.setAutoCancel(true);
builder.setContentText(message + ", Current Time : " + dateTime.getHourOfDay() + ":" + dateTime.getMinuteOfHour() + ":" + dateTime.getSecondOfMinute());
builder.setSound(soundUri);
builder.setLights(Color.RED, 1000, 1000);
builder.setColor(color);
Notification notification = builder.build();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(102938, notification);
}
}
的AndroidManifest.xml
<receiver android:name=".NotificationReceiver" />