问：就像标题所暗示的，推入测试是成功的。但是它没有在状态栏中显示通知。任何帮助表示赞赏，谢谢。哦，我将genymotion用作仿真器，并使用api 19（4.4.4）运行nexus 4。
RibbitApplication.java
包 com.teamtreehouse.ribbit ;
导入android.app.Application ; 导入com.parse.Parse ; 导入com.parse.ParseInstallation ; 公共类RibbitApplication扩展应用{ @覆盖公共无效的onCreate （）{超。onCreate （）; 解析。初始化（此，“xPvxj9cx2bD4PDv1Doxt8pZFIW47nG70SwVzhlk3” ，“xQS0mVnFFBD5gTN2kf6op0cxZ6Upk3D8wVMfHLri” ）; ParseInstallation 。
getCurrentInstallation （）。saveInBackground （）;
} }
Build.gradle
Apply插件：'com.android.application'android
{
compileSdkVersion 19
buildToolsVersion '23 .0.0'defaultConfig
{
applicationId“ com.teamtreehouse.ribbit”
minSdkVersion 14
targetSdkVersion 19
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile（'proguard-android.txt '），'proguard-rules.txt'
}
}
}
依赖项{
编译fileTree（dir：'libs'，包括：['* .jar']）
编译'com.parse.bolts：bolts-android：1. +'
编译'com.parse.bolts：
bolts-android：1. +'
编译fileTree（dir：'libs'，包括：'Parse-*。jar'）
编译'com.android.support:support-v4:19.1.0'
编译文件（'libs / commons-io-2.4.jar'）
编译文件（'libs / Parse-1.10.3.jar'）
编译文件（'libs / picasso-2.1.1.jar'）
}
AndroidManifest.xml
<？xml version =“ 1.0” encoding =“ utf-8”？>
<清单 xmlns：android = “” http://schemas.android.com/apk/res/android“
package = ” com.teamtreehouse.ribbit“ android ：versionCode = “ 1” android：versionName = “ 1.0” > <uses-sdk android：minSdkVersion = “ 14” android：targetSdkVersion = “ 19” /> <uses-permission android：name = “” android.permission.INTERNET“ / > <uses-permission android：name = “” android.permission.ACCESS_NETWORK_STATE“ /> <uses-permission android：name = “” android.permission.WRITE_EXTERNAL_STORAGE“ />
包名称+“ .permission.C2D_MESSAGE”。
-> <权限
android：protectionLevel = “ signature”
android：name = “ com.teamtreehouse.ribbit.permission.C2D_MESSAGE” /> <uses-permission android：name = “” com.teamtreehouse.ribbit.permission.C2D_MESSAGE“ /> <应用程序android：name = “ com.teamtreehouse.ribbit.RibbitApplication” android：allowBackup = “ true” android：icon = “ @ drawable / ic_launcher” android：label = “” @ string / app_name“ android：theme = ”“ style / Theme.Ribbit” > <activity android：name = “ com.teamtreehouse.ribbit.ui.MainActivity” android：label = “ @ string / app_name” android：screenOrientation =
“肖像” >
<intent-filter> <action android：name = “ android.intent.action.MAIN” /> <category android：name = “” android.intent.category.LAUNCHER“ /> </ intent-filter> < / activity> <activity android：name = “ com.teamtreehouse.ribbit.ui.LoginActivity” android：label = “ @ string / title_activity_login” android：screenOrientation = “ portrait” > </ activity> <activity android：name = “” com .teamtreehouse.ribbit.ui.SignUpActivity“ android：label = ”@ string / title_activity_sign_up“ android：parentActivityName =
“ com.teamtreehouse.ribbit.ui.LoginActivity”
android：screenOrientation = “纵向” > </ activity> <activity android：name = “” com.teamtreehouse.ribbit.ui.EditFriendsActivity“ android：label = ”“ @ string / title_activity_edit_friends” android：parentActivityName = “ com.teamtreehouse.ribbit.ui.MainActivity” android：screenOrientation = “纵向” > <元数据android：name = “” android.support.PARENT_ACTIVITY“ android：value = ”“ .ui.MainActivity” /> </ activity> <activity android：name = “” com。teamtreehouse.ribbit.ui.RecipientsActivity“ android：label =
“ @ string / title_activity_recipients”
android：parentActivityName = “” com.teamtreehouse.ribbit.ui.MainActivity“ android：screenOrientation = ”“肖像” > <元数据android：name = “” android.support.PARENT_ACTIVITY“ android：value = ”“。 ui.MainActivity“ /> </ activity> <activity android：name = ” com.teamtreehouse.ribbit.ui.ViewImageActivity“ android：label = ”“ @ string / title_activity_view_image” android：parentActivityName = “” com.teamtreehouse.ribbit.ui。 MainActivity“ android：screenOrientation = ” portrait“ > <元数据android：name = “” android.support.PARENT_ACTIVITY“
android：value = “” .ui.MainActivity“ />
</ activity> <service android：name = ”“ com.parse.PushService” /> <receiver android：name = “” com.parse.ParsePushBroadcastReceiver“ android：exported = ”“ false “ > <意图过滤器> <动作android：name = ” com.parse.push.intent.RECEIVE“ /> <动作android：name = ”“ com.parse.push.intent.DELETE” /> <动作android：name = “ com.parse.push.intent.OPEN” /> </ intent-filter> </ receiver> <接收器android：name = “ com.parse.GcmBroadcastReceiver”
android：permission = “ com.google.android.c2dm.permission.SEND” >
<意图过滤器> <action android：name = “” com.google.android.c2dm.intent.RECEIVE“ /> <action android：name = “ com.google.android.c2dm.intent.REGISTRATION” /> <！- 重要：更改“ com.parse.starter”以匹配您应用的程序包名称。 -> <category android：name = “ com.teamtreehouse.ribbit” /> </ intent-filter> </ receiver> </ application> </ manifest>
答：现在从你上面提供的代码还是看不出来任何问题的。
