我尝试使用一个旧的Android应用程序，这是使用Green Dao这样的数据库也是这个应用程序有味道，所以我编译并安装apk但应用程序不开始它给出了这个例外：
Process: com.xxxx.boeufaujardin, PID: 20011 java.lang.RuntimeException: Unable to create application com.android.tools.fd.runtime.BootstrapApplication: de.greenrobot.dao.DaoException: Could not init DAOConfig
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4556)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: de.greenrobot.dao.DaoException: Could not init DAOConfig
at de.greenrobot.dao.DaoConfig.<init>(DaoConfig.java:88)
其他原因：
Caused by: java.lang.NullPointerException: Attempt to read from field 'int de.greenrobot.dao.Property.ordinal' on a null object reference
at de.greenrobot.dao.DaoConfig.reflectProperties(DaoConfig.java:99)
at de.greenrobot.dao.DaoConfig.<init>(DaoConfig.java:51)
at de.greenrobot.dao.AbstractDaoMaster.registerDaoClass(AbstractDaoMaster.java:43)
这是我的傻瓜：
apply plugin: 'com.android.application'
buildscript {
repositories {
mavenCentral()
maven { url 'http://download.crashlytics.com/maven' }
}
dependencies {
classpath 'com.android.tools.build:gradle:2.0.0-alpha1'
classpath 'com.crashlytics.tools.gradle:crashlytics-gradle:1.+'
} } apply plugin: 'android' apply plugin: 'crashlytics' repositories {
mavenCentral()
maven { url 'http://download.crashlytics.com/maven' } }
android {
compileSdkVersion 19
buildToolsVersion '19.1.0'
//useOldManifestMerger false
dexOptions {
preDexLibraries = false
}
packagingOptions {
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
}
signingConfigs {
debug_config {
}
release_config {
}
}
compileSdkVersion 19
buildToolsVersion '19.1.0'
defaultConfig {
applicationId 'com.xxxxx.xx'
minSdkVersion 11
targetSdkVersion 19
versionCode 11
versionName '0.3'
signingConfig signingConfigs.debug_config
// Enabling multidex support.
// multiDexEnabled true
}
buildTypes {
release {
debuggable false
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
debuggable true
signingConfig signingConfigs.debug_config
//renderscriptDebugBuild false
}
}
productFlavors {
Menu {
applicationId "com.paperpad.menu"
manifestPlaceholders = [activityLabel : "Menu", gcmPackage : "com.paperpad.menu"]
minSdkVersion 11
signingConfig signingConfigs.debug_config
targetSdkVersion 19
versionCode 11
versionName '0.3'
ext.enableCrashlytics = false
}
ServiceApps {
ext.enableCrashlytics = false // true
applicationId "xxxx.xxxxx.boeufaujardin"
minSdkVersion 11
signingConfig signingConfigs.debug_config
targetSdkVersion 19
versionCode 19
versionName '0.5.4'
}
}
sourceSets { // main { // manifest.srcFile 'AndroidManifest.xml' // java.srcDirs = ['java'] // resources.srcDirs = ['res'] // aidl.srcDirs = ['src'] // renderscript.srcDirs = ['src'] // res.srcDirs = ['res'] // assets.srcDirs = ['assets'] // }
ServiceApps {
manifest.srcFile 'ServiceApps/AndroidManifest.xml'
resources.srcDirs = ['ServiceApps/res']
res.srcDirs = ['ServiceApps/res']
}
} }
dependencies {
compile('com.android.support:appcompat-v7:19.1.0') {
// really use 19.1.0 even if something else resolves higher
//force = true
exclude module: 'support-v4'}
// compile 'com.android.support:multidex:1.0.1'
//compile 'com.crashlytics.android:crashlytics:1.+'
compile project(':headerListView')
compile files('libs/freemarker.jar')
compile files('libs/httpmime-4.1.jar')
compile files('libs/crashlytics.jar')
compile files('libs/simple-xml-2.6.9.jar')
compile files('libs/json-simple-1.1.1.jar')
compile files('libs/greenDAO.jar')
compile files('libs/gcm-src.jar')
compile files('libs/gcm.jar')
compile files('libs/greenDAO-generator.jar')
compile files('libs/disklrucache-1.3.1.jar')
compile files('libs/httpclient-4.2.3.jar')
compile files('libs/trace.jar')
compile files('libs/jackson-databind-2.1.4.jar')
compile files('libs/jackson-core-2.1.4.jar')
compile files('libs/jackson-annotations-2.1.4.jar')
compile files('libs/universal-image-loader-1.8.4.jar')
compile files('libs/universal-image-loader-1.8.4-sources.jar')
compile files('libs/picasso-2.2.0.jar')
compile project(':library')
compile files('libs/Android-BitmapCache-2.1.jar')
//compile 'org.jraf:android-switch-backport:1.3.1'
compile files('libs/android-support-v13.jar') }
答案 0 :(得分：0)
------属性声明如下------
public class FolderDao extends AbstractDao<Folder, Long> {
public static final String TABLENAME = "FOLDER";
private DaoSession daoSession;
public static class Properties {
public static final Property FolderPath = new Property(8, String.class, "folderPath", false, "FOLDER_PATH");
public static final Property FolderSourceId = new Property(5, Long.class, "folderSourceId", false, "FOLDER_SOURCE_ID");
public static final Property Id = new Property(0, Long.class, "id", true, "_id");
public static final Property IsCamera = new Property(3, Boolean.class, "isCamera", false, "IS_CAMERA");
public static final Property IsHidden = new Property(7, Boolean.class, "isHidden", false, "IS_HIDDEN");
public static final Property IsUserCreated = new Property(6, Boolean.class, "isUserCreated", false, "IS_USER_CREATED");
public static final Property Name = new Property(1, String.class, "name", false, "NAME");
public static final Property Source = new Property(4, Integer.class, "source", false, "SOURCE");
public static final Property UserType = new Property(2, String.class, "userType", false, "USER_TYPE");
}
public FolderDao(DaoConfig daoConfig) {
super(daoConfig);
}
public FolderDao(DaoConfig daoConfig, DaoSession daoSession) {
super(daoConfig, daoSession);
this.daoSession = daoSession;
}
如果你不写公共所以发生错误如引起：de.greenrobot.dao.DaoException：无法初始化DAOConfig 或者静态而不是引起：java.lang.NullPointerException：尝试从空对象引用上的字段'int de.greenrobot.dao.Property.ordinal'中读取
答案 1 :(得分：0)
我在下面添加了保护规则。
-keep class xxx.dao.**{*;}
（xxx是放置DAO类文件的packageName。）
对我有用。