IBM Mobilefirst 7.1 PushNotifications：无法从后台检索通知文本到前台
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【中文标题】IBM Mobilefirst 7.1 PushNotifications：无法从后台检索通知文本到前台【英文标题】：IBM Mobilefirst 7.1 PushNotifications: Unable to retrieve notification text from background to foreground 【发布时间】：2016-01-27 20:21:15 【问题描述】：我们在 MobileFirst 应用程序中集成了基于标签的通知和广播通知。当应用程序打开并且用户能够看到通知文本时，我们能够发送通知。但是当用户杀死应用程序并且通知到达通知面板时：用户能够单击通知并打开应用程序但它不显示通知文本。
请在下面找到代码：
/* TagBased and Broadcast Notification Code Start */
var chkHolder;
function suborunsub(chkbxFlag)
console.log('The value of checkbox flag is:'+chkbxFlag);
var checkBox;
if(chkbxFlag=='TG1')
chkHolder = "TAG1";
checkBox = document.getElementById("SUBTG1").checked;
console.log('The checkbox value is:'+checkBox);
if(checkBox)
subscribeToNotifTag('TAG1');
else
unsubscribeFromNotifTag('TAG1');
else if(chkbxFlag=='TG2')
chkHolder = "TAG 2";
checkBox = document.getElementById("SUBTG2").checked;
console.log('The checkbox value is:'+checkBox);
if(checkBox)
subscribeToNotifTag('TAG2');
else
unsubscribeFromNotifTag('TAG2');
//---------------------------- Check if push support is available-----------
function isPushSupported()
var isSupported = false;
if (WL.Client.Push)
isSupported = WL.Client.Push.isPushSupported();
WL.SimpleDialog.show("Alert", JSON.stringify(isSupported), [
text : 'Close',
handler : function()
]);
// --------------------------------- Subscribe to tag --------------------
function subscribeToNotifTag(nTag)
WL.Client.Push.subscribeTag(nTag,
onSuccess: subscribeTagSuccess,
onFailure: subscribeTagFailure
);
function subscribeTagSuccess()
WL.SimpleDialog.show("Alert", "Subscribed to : "+chkHolder, [
text : 'Close',
handler : function()
]);
function subscribeTagFailure()
WL.SimpleDialog.show("Alert", "Failed to subscribe : "+chkHolder, [
text : 'Close',
handler : function()
]);
// ------------------------------- Unsubscribe from tag --------------------
function unsubscribeFromNotifTag(nTag)
WL.Client.Push.unsubscribeTag(nTag,
onSuccess: unsubscribeTagSuccess,
onFailure: unsubscribeTagFailure
);
function unsubscribeTagSuccess()
WL.SimpleDialog.show("Alert", "Unsubscribed to : "+chkHolder, [
text : 'Close',
handler : function()
]);
function unsubscribeTagFailure()
WL.SimpleDialog.show("Alert", "Failed to unsubscribe : "+chkHolder, [
text : 'Close',
handler : function()
]);
//------------------------------- Handle received notification -----------
WL.Client.Push.onMessage = function (props)
if(WL.StaticAppProps.ENVIRONMENT=='iphone')
WL.SimpleDialog.show("Alert", "" + JSON.stringify(props.alert.body), [
text : 'Close',
handler : function()
]);
else if(WL.StaticAppProps.ENVIRONMENT=='android')
WL.SimpleDialog.show("Alert", "" + JSON.stringify(props.alert), [
text : 'Close',
handler : function()
]);
;
/* TagBased and Broadcast Notification Code End */
AndroidManifest.xml
<?xml version="1.0" encoding="UTF-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.myAPP" android:versionCode="6" android:versionName="8.2">
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="21"/>
<supports-screens android:smallScreens="false" android:normalScreens="true" android:largeScreens="false"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<!-- Push permissions -->
<permission android:name="com.myAPP.permission.C2D_MESSAGE" android:protectionLevel="signature"/>
<uses-permission android:name="com.myAPP.permission.C2D_MESSAGE"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<uses-permission android:name="android.permission.USE_CREDENTIALS"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.READ_CALENDAR"/>
<uses-permission android:name="android.permission.WRITE_CALENDAR"/>
<application android:label="@string/app_name" android:icon="@drawable/icon">
<meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AIzaSyBHvtzEPwG4DYTG9Zsvijz9mRIC53ehleU"/>
<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version"/>
<activity android:name=".myAPP" android:label="@string/app_name" android:configChanges="orientation|keyboardHidden|screenSize" android:launchMode="singleTask" android:theme="@android:style/Theme.Translucent.NoTitleBar" android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
<intent-filter>
<action android:name="com.myAPP.myAPP.NOTIFICATION"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".MGMapFragment" android:theme="@style/Theme.MGMapTheme"/>
<activity android:name=".MGMultiMapFragment" android:theme="@style/Theme.MGMapTheme"/>
<activity android:name=".MGPickerMapFragment" android:theme="@style/Theme.MGPckrTheme"/>
<!-- Preference Activity -->
<activity android:name="com.worklight.common.WLSettingActivity" android:label="Worklight Settings"/>
<!-- UI Activity for displaying native dialogs -->
<activity android:name="com.worklight.wlclient.ui.UIActivity"/>
<!-- Push service -->
<!-- In order to use the c2dm library, an application must declare a class with the name C2DMReceiver, in its own package, extending com.google.android.c2dm.C2DMBaseReceiver
It must also include this section in the manifest, replacing "com.google.android.apps.chrometophone" with its package name. -->
<service android:name=".GCMIntentService"/>
<service android:name=".ForegroundService"/>
<!-- Only google service can send data messages for the app. If permission is not set - any other app can generate it -->
<receiver android:name="com.worklight.androidgap.push.WLBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND">
<!-- Receive the actual message -->
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE"/>
<category android:name="com.myAPP"/>
</intent-filter>
<!-- Receive the registration id -->
<intent-filter>
<action android:name="com.google.android.c2dm.intent.REGISTRATION"/>
<category android:name="com.myAPP"/>
</intent-filter>
</receiver>
</application>
</manifest>
【问题讨论】：
应用无论是关闭还是打开，都到达main.js文件中相同的代码路径；所以问题是设置问题。可能在 AndroidManifest.xml - 你可以添加它吗？你有没有以任何方式改变它？字符串？名字？ 应用程序已关闭，我们没有更改清单文件中的任何字符串或名称。 提及您的确切内部版本号。您是否检查了示例应用程序？效果不是很好吗？ 内部版本号：7.1.0.0-MFPF-IF201512191535。我已经尝试过运行良好的示例应用程序。即使我已经比较了这两个 android manifest.xml 文件，除了一些额外的活动之外没有任何区别。 删除代码中的“WL.StaticAppProps.ENVIRONMENT”条件检查，然后尝试。 【参考方案1】：我已尝试使用示例应用程序附带的默认代码，它运行良好。但是使用这个“WL.StaticAppProps.ENVIRONMENT”的原因是我们只想向用户显示通知文本。有没有最好的方式只向用户显示通知文本？
“只是通知文本”是什么意思？这与默认通知有何不同？示例应用程序展示了如何访问通知对象并显示有效负载和道具。分开。
function pushNotificationReceived(props, payload)
WL.SimpleDialog.show("Push Notifications", "Provider notification data: " + JSON.stringify(props), [
text : 'Close',
handler : function()
WL.SimpleDialog.show("Push Notifications", "Application notification data: " + JSON.stringify(payload), [
text : 'Close',
handler : function()
]);
]);
【讨论】：
当我们使用“+ JSON.stringify(props)”时，它会将通知发送为“Provider notification data: "alert":test, "badge":1,"sound":null,"优先级“：0”。所以在这里我们只想向用户显示“警报”：测试。所以这就是我们将它定制为“+ JSON.stringify(props.alert)”的地方。以上是关于IBM Mobilefirst 7.1 PushNotifications：无法从后台检索通知文本到前台的主要内容，如果未能解决你的问题，请参考以下文章
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