Android Studio 版本2.2及更高版本带有最新的嵌入式OpenJDK；但是，建议您自己安装JDK，因为这样您就可以独立于Android Studio进行更新。Android Studio 3.0及更高版本支持所有Java 7和Java 8语言特性的子集。Java JDKs可以从Oracle的网站下载。
将上述依赖项和排除项添加到build.gradle文件后，请尝试将gradle同步，以查看是否需要任何其他排除项。错误消息将标识应添加到排除列表中的文件路径。带有文件路径的错误消息示例是： > More than one file was found with OS independent path 'org/bytedeco/javacpp/ windows-x86_64/msvp120.dll”编译这些依赖项涉及大量文件，因此有必要在defaultConfig中将multiDexEnabled设置为true。
multiDexEnabled true
junit模块版本中的冲突通常会导致以下错误：> Conflict with dependency 'junit:junit' in project ':app'。应用程序（4.8.2）和测试应用程序（4.12）的解析版本不同。这可以通过强制所有junit模块使用相同的版本来抑制：
# enable optimization
-optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
-optimizationpasses 5
-allowaccessmodification
-dontwarn org.apache.lang.**
-ignorewarnings
-keepattributes *Annotation*
# JavaCV
-keep @org.bytedeco.javacpp.annotation interface * {*;}
-keep @org.bytedeco.javacpp.annotation.Platform public class *
-keepclasseswithmembernames class * {@org.bytedeco.* <fields>;}
-keepclasseswithmembernames class * {@org.bytedeco.* <methods>;}
-keepattributes EnclosingMethod
-keep @interface org.bytedeco.javacpp.annotation.*,javax.inject.*
-keepattributes *Annotation*, Exceptions, Signature, Deprecated, SourceFile, SourceDir, LineNumberTable, LocalVariableTable, LocalVariableTypeTable, Synthetic, EnclosingMethod, RuntimeVisibleAnnotations, RuntimeInvisibleAnnotations, RuntimeVisibleParameterAnnotations, RuntimeInvisibleParameterAnnotations, AnnotationDefault, InnerClasses
-keep class org.bytedeco.javacpp.** {*;}
-dontwarn java.awt.**
-dontwarn org.bytedeco.javacv.**
-dontwarn org.bytedeco.javacpp.**
# end javacv
# This flag is needed to keep native methods
-keepclasseswithmembernames class * {
native <methods>;
}
-keep public class * extends android.view.View {
public <init>(android.content.Context);
public <init>(android.content.Context, android.util.AttributeSet);
public <init>(android.content.Context, android.util.AttributeSet, int);
public void set*(...);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
# For enumeration classes
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
-keep class android.support.v7.app.** { *; }
-keep interface android.support.v7.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }
-dontwarn android.support.**
-dontwarn com.google.ads.**
# Flags to keep standard classes
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgent
-keep public class * extends android.preference.Preference
-keep public class * extends android.support.v7.app.Fragment
-keep public class * extends android.support.v7.app.DialogFragment
-keep public class * extends com.actionbarsherlock.app.SherlockListFragment
-keep public class * extends com.actionbarsherlock.app.SherlockFragment
-keep public class * extends com.actionbarsherlock.app.SherlockFragmentActivity
-keep public class * extends android.app.Fragment
-keep public class com.android.vending.licensing.ILicensingService
The example below illustrates the use of a Workspace for memory allocation in the AsyncTask of and Android Application. More information concerning ND4J Workspaces can be found here.
