从通知开始 Activity - Android Studio
Starting Activity from a notification - Android Studio
我正在尝试通过通知启动 activity。在开始 activity 后,我通过 intent.putextra 添加数据到意图中,以便 activity 显示适合该情况的正确内容。
正在启动的 activity 应该在堆栈中只打开一次。我确实通过
实现了这一点
android:launchMode="singleTop"
在我的清单中。
但是 - 现在我来回答我的问题 - 如果这个 activity 已经是 运行,我希望它关闭并用我正在创建的实例替换它,其中包含特定的附加数据 (放额外的)。我怎样才能做到这一点?
这是我的通知代码:
public void newMessageNotification(String title, String message, String otherusernumber, String requestStatus, String sendername) {
notificationManager = NotificationManagerCompat.from(this);
Intent chatIntent = new Intent(this,ChatActivity.class);
//these three strings define the behaviour of the chat activtity
chatIntent.putExtra("otherUsername", sendername);
chatIntent.putExtra("otherUsernumber", otherusernumber);
chatIntent.putExtra("requestStatus", requestStatus);
chatIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent contentIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), chatIntent,
PendingIntent.FLAG_UPDATE_CURRENT);;
Notification notification = new NotificationCompat.Builder(this, CHANNEL_1_ID)
.setSmallIcon(R.drawable.ic_new_message)
.setContentTitle(title)
.setContentText(message)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setCategory(NotificationCompat.CATEGORY_MESSAGE)
.setContentIntent(contentIntent)
.setAutoCancel(true)
.build();
notificationManager.notify(1, notification);
}
尝试添加标记:Intent.FLAG_ACTIVITY_NEW_TASK
到您的 Intent
试试下面
Intent intent = new Intent(this, ActivityDestination.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
//pendingIntent = PendingIntent.getActivity(this, 0,intent,PendingIntent.FLAG_ACTIVITY_NEW_TASK);
试试下面的代码
在通知中添加PendingIntent
Intent intent = new Intent(this, OpenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent,
PendingIntent.FLAG_UPDATE_CURRENT);
完整创建通知代码
Intent intent = new Intent(this, OpenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent,
PendingIntent.FLAG_UPDATE_CURRENT);
NotificationManager notificationManager =
(NotificationManager) getSystemService (Context.NOTIFICATION_SERVICE);
Uri defaultSoundUri = RingtoneManager . getDefaultUri (RingtoneManager.TYPE_NOTIFICATION);
Notification notification;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// The id of the channel.
String Ch_id = "yourappname_01";
// The user-visible name of the channel.
CharSequence name = "Notification";
// The user-visible description of the channel.
//String description = getString(R.string.channel_description);
int importance = NotificationManager . IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(Ch_id, name, importance);
mChannel.setSound(defaultSoundUri, new AudioAttributes . Builder ().build());
notificationManager.createNotificationChannel(mChannel);
// Create a notification and set the notification channel.
notification = new Notification . Builder (this, Ch_id)
.setSmallIcon(R.drawable.notify)
.setContentTitle(getResources().getString(R.string.app_name))
.setContentText(remoteMessage.getData().get("title"))
.setAutoCancel(true)
.setContentIntent(pendingIntent) //Add PendingIntent
.setChannelId(Ch_id)
.build();
} else {
// Create a notification
notification = new Notification . Builder (this)
.setSmallIcon(R.drawable.notify)
.setContentTitle(getResources().getString(R.string.app_name))
.setContentText(remoteMessage.getData().get("title"))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent) //Add PendingIntent
.build();
}
//Generate Diff Notification
int m =(int)((new Date ().getTime() / 1000L) % Integer.MAX_VALUE);
notificationManager.notify(m, notification);
更新
Intent intent = new Intent(this, OpenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent,
PendingIntent.FLAG_ONE_SHOT);
希望对您有所帮助!
谢谢。
我正在尝试通过通知启动 activity。在开始 activity 后,我通过 intent.putextra 添加数据到意图中,以便 activity 显示适合该情况的正确内容。
正在启动的 activity 应该在堆栈中只打开一次。我确实通过
实现了这一点android:launchMode="singleTop"
在我的清单中。
但是 - 现在我来回答我的问题 - 如果这个 activity 已经是 运行,我希望它关闭并用我正在创建的实例替换它,其中包含特定的附加数据 (放额外的)。我怎样才能做到这一点?
这是我的通知代码:
public void newMessageNotification(String title, String message, String otherusernumber, String requestStatus, String sendername) {
notificationManager = NotificationManagerCompat.from(this);
Intent chatIntent = new Intent(this,ChatActivity.class);
//these three strings define the behaviour of the chat activtity
chatIntent.putExtra("otherUsername", sendername);
chatIntent.putExtra("otherUsernumber", otherusernumber);
chatIntent.putExtra("requestStatus", requestStatus);
chatIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent contentIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), chatIntent,
PendingIntent.FLAG_UPDATE_CURRENT);;
Notification notification = new NotificationCompat.Builder(this, CHANNEL_1_ID)
.setSmallIcon(R.drawable.ic_new_message)
.setContentTitle(title)
.setContentText(message)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setCategory(NotificationCompat.CATEGORY_MESSAGE)
.setContentIntent(contentIntent)
.setAutoCancel(true)
.build();
notificationManager.notify(1, notification);
}
尝试添加标记:Intent.FLAG_ACTIVITY_NEW_TASK
到您的 Intent
试试下面
Intent intent = new Intent(this, ActivityDestination.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
//pendingIntent = PendingIntent.getActivity(this, 0,intent,PendingIntent.FLAG_ACTIVITY_NEW_TASK);
试试下面的代码
在通知中添加PendingIntent
Intent intent = new Intent(this, OpenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent,
PendingIntent.FLAG_UPDATE_CURRENT);
完整创建通知代码
Intent intent = new Intent(this, OpenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent,
PendingIntent.FLAG_UPDATE_CURRENT);
NotificationManager notificationManager =
(NotificationManager) getSystemService (Context.NOTIFICATION_SERVICE);
Uri defaultSoundUri = RingtoneManager . getDefaultUri (RingtoneManager.TYPE_NOTIFICATION);
Notification notification;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// The id of the channel.
String Ch_id = "yourappname_01";
// The user-visible name of the channel.
CharSequence name = "Notification";
// The user-visible description of the channel.
//String description = getString(R.string.channel_description);
int importance = NotificationManager . IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(Ch_id, name, importance);
mChannel.setSound(defaultSoundUri, new AudioAttributes . Builder ().build());
notificationManager.createNotificationChannel(mChannel);
// Create a notification and set the notification channel.
notification = new Notification . Builder (this, Ch_id)
.setSmallIcon(R.drawable.notify)
.setContentTitle(getResources().getString(R.string.app_name))
.setContentText(remoteMessage.getData().get("title"))
.setAutoCancel(true)
.setContentIntent(pendingIntent) //Add PendingIntent
.setChannelId(Ch_id)
.build();
} else {
// Create a notification
notification = new Notification . Builder (this)
.setSmallIcon(R.drawable.notify)
.setContentTitle(getResources().getString(R.string.app_name))
.setContentText(remoteMessage.getData().get("title"))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent) //Add PendingIntent
.build();
}
//Generate Diff Notification
int m =(int)((new Date ().getTime() / 1000L) % Integer.MAX_VALUE);
notificationManager.notify(m, notification);
更新
Intent intent = new Intent(this, OpenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent,
PendingIntent.FLAG_ONE_SHOT);
希望对您有所帮助!
谢谢。