我正在尝试将GCM
添加到我的应用中,因此我正在关注this guide。
但是我在以下问题上遇到了未解决的符号错误:
import android.support.v7.app.AppCompatActivity;
和我的R
图书馆
这是我的manifest
:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.examplegcm"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"/>
<uses-permission android:name="com.example.examplegcm.permission.C2D_MESSAGE"/>
<uses-permission android:name="com.google.android.c2dm.permission.SEND"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@drawable/logo"
android:label="@string/app_name"
android:theme="@style/MyTheme" >
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.example.examplegcm" />
</intent-filter>
</receiver>
<service
android:name="com.example.examplegcm.chatGCM.MyGcmListenerService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<service
android:name="com.example.examplegcm.chatGCM.MyInstanceIDListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.android.gms.iid.InstanceID"/>
</intent-filter>
</service>
<activity
android:name=".MainApplication"
android:label="@string/app_name"
android:theme="@android:style/Theme.NoDisplay" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
...
</application>
</manifest>
以下是我的gradle
:
顶级:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.2.3'
classpath 'com.google.gms:google-services:1.3.0-beta1'
}
}
allprojects {
repositories {
jcenter()
}
}
应用
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion '22.0.1'
defaultConfig {
applicationId "com.alaarami.letsrun"
minSdkVersion 16
targetSdkVersion 21
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
}
dependencies {
compile 'com.android.support:support-v4:21.0.3'
compile files('libs/slf4j-api-1.7.12.jar')
compile files('libs/slf4j-simple-1.7.12.jar')
apply plugin: 'com.google.gms.google-services'
compile 'com.google.android.gms:play-services:7.5.0'
}
编译Sdk版本:16 构建工具版本:22.0.1
jdk:1.8
已安装的SDK:
更新
它已经解决了...我不知道如何。什么都没做
答案 0 :(得分:0)
添加到您的依赖项
compile 'com.android.support:appcompat-v7:21.0.3'
这是包含AppCompatActivity的工件。