【发布时间】:2017-04-29 04:21:08
【问题描述】:
我目前的目标是在单击成功接收的推送通知后将应用程序打开到特定页面。一旦我掌握了基础知识,我就会发送一个 id。由于某种原因,在点击通知后,id 没有被传递回 mainactivity。
BroadcastReciever 类发送推送通知
var uiIntent = new Intent(this, typeof(MainActivity));
uiIntent.PutExtra("param", "54");
var pendingIntent = PendingIntent.GetActivity(this, 0, uiIntent, 0);
主要活动 - onCreate
string parameterValue = this.Intent.GetStringExtra("param");
if (parameterValue != null)
{
LoadApplication(new App(parameterValue));
}
else
{
LoadApplication(new App(null));
}
似乎很简单,但我的参数值总是为空,谢谢
更新
private void CreateNotification(string title, string desc)
{
//Create notification
var notificationManager = GetSystemService(Context.NotificationService) as NotificationManager;
Intent startupIntent = new Intent(this, typeof(MainActivity));
startupIntent.PutExtra("param", "54");
Android.App.TaskStackBuilder stackBuilder = Android.App.TaskStackBuilder.Create(this);
stackBuilder.AddParentStack(Java.Lang.Class.FromType(typeof(MainActivity)));
stackBuilder.AddNextIntent(startupIntent);
const int pendingIntentId = 0;
PendingIntent pendingIntent =
stackBuilder.GetPendingIntent(pendingIntentId, PendingIntentFlags.OneShot);
// var pendingIntent = PendingIntent.GetActivity(this, 0, startupIntent, 0);
////Create an intent to show ui
//var uiIntent = new Intent(this, typeof(MainActivity));
//uiIntent.PutExtra("param", "54");
//var pendingIntent = PendingIntent.GetActivity(this, 0, uiIntent, 0);
//Create the notification using Notification.Builder
//Use Android Compatibility Apis
var notification = new NotificationCompat.Builder(this).SetContentTitle(title)
.SetSmallIcon(Android.Resource.Drawable.SymActionEmail)
//we use the pending intent, passing our ui intent over which will get called
//when the notification is tapped.
.SetContentIntent(pendingIntent)
.SetContentText(desc)
.SetSound(RingtoneManager.GetDefaultUri(RingtoneType.Notification))
//Auto cancel will remove the notification once the user touches it
.SetAutoCancel(true).
Build();
//Show the notification
if (notificationManager != null)
{
notificationManager.Notify(1, notification);
}
}
使用不同方法的完整方法,但值仍然没有传递给 mainactivity。总是有一个空值?
【问题讨论】:
-
string parameterValue = this.Intent.GetStringExtra("param");在onResume()生命周期函数中试试这个函数。
标签: android xamarin.forms android-notifications main-activity