【发布时间】：2016-09-15 01:54:00
【问题描述】：
我正在构建我的第一个使用 Google Maps API 活动的 Android 应用。它在模拟器上运行良好。但是添加 Firebase 后，它在模拟器上崩溃了：
Unfortunately, MyApp has stopped
查了很多，发现查logcat很有用，显示异常如下：
09-15 03:30:39.836 3541-3541/com.example.googlemapsapi E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: com.google.firebase.FirebaseOptions
at com.google.firebase.FirebaseApp.zzek(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1058)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:4560)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4190)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4132)
at android.app.ActivityThread.access$1300(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
我已经完成了这些解决方案中的步骤
但问题依然存在。
MapsActivity.java 文件：
package com.example.googlemapsapi;
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
/*LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
*/
LatLng busLocation = new LatLng(37.783879,-122.401254);
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(busLocation, 12));
mMap.addMarker(new MarkerOptions()
.position(busLocation)
.title("Code the Road Bus")
.icon(BitmapDescriptorFactory.fromResource(R.drawable.bus)));
}
}
build.gradle 文件：
// 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:2.1.3'
classpath 'com.google.gms:google-services:3.0.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
configurations {
all*.exclude group: 'com.android.support', module: 'support-v4'
}
app/build.gradle：
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "com.example.googlemapsapi"
minSdkVersion 16
targetSdkVersion 24
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
/*
packagingOptions {
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE-FIREBASE.txt'
exclude 'META-INF/NOTICE'
}
*/
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:24.2.0'
compile 'com.android.support:multidex:1.0.1'
compile 'com.google.android.gms:play-services:9.4.0'
compile 'com.google.firebase:firebase-core:9.4.0'
// compile 'com.firebase:firebase-client-android:2.5.2+'
}
apply plugin: 'com.google.gms.google-services'
我做错了什么？ 提前致谢， 塞缪尔·法里德
【问题讨论】：
-
在您的模拟器上，转到设置/应用程序并点击 Google Play 服务。版本号是 9.4.52 吗？
-
请在stacktrace的每行开头添加四个空格，以便于阅读。
-
@qbix 是的。