Failed resolution of:Ljava/util/stream/IntStream
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java8中最重要的两个特性,
一个是可以使用lambda表达式,另一个就是对集合对象操作的api、Stream的使用。
将这俩个特性使用android上也会大大的提高编程效率,下面看该如何使用它们。
编译环境:
java1.8
android studio 2.2
虚拟机:android 6
配置文件:
项目build:
config.gradle
ext { dependencies = ["appcompat-v7" : "com.android.support:appcompat-v7:24.2.0", "design" : "com.android.support:design:23.3.0", "recyclerview-v7" : "com.android.support:recyclerview-v7:23.3.0", "retrofit" : "com.squareup.retrofit:retrofit:1.9.0", "rxandroid" : "io.reactivex:rxandroid:1.1.0", "rxjava" : "io.reactivex:rxjava:1.1.0", "okhttp-urlconnection": "com.squareup.okhttp:okhttp-urlconnection:2.0.0", "okhttp" : "com.squareup.okhttp:okhttp:2.0.0", "glide" : "com.github.bumptech.glide:glide:3.6.1"]}
app/build.gradle
apply plugin: 'com.android.application'apply plugin: 'me.tatarka.retrolambda'apply plugin: 'android-apt'android { compileSdkVersion 24 buildToolsVersion "24.0.1" defaultConfig { applicationId "com.example.xq.rxandroiddemo" minSdkVersion 19 targetSdkVersion 24 versionCode 1 versionName "1.0"// jackOptions {// enabled true// } } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 }}dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) testCompile 'junit:junit:4.12' compile rootProject.ext.dependencies["design"] compile rootProject.ext.dependencies["appcompat-v7"] compile rootProject.ext.dependencies["retrofit"] compile rootProject.ext.dependencies["rxandroid"] compile rootProject.ext.dependencies["rxjava"] compile rootProject.ext.dependencies["okhttp-urlconnection"] compile rootProject.ext.dependencies["okhttp"] compile rootProject.ext.dependencies["glide"]}
错误:
代码:
可以看到 rxandroid,lambda表达式都是可以使用的,编译时也是可以通过的 但是一运行就报错
原因:
streamAPI只有在android7中才支持,那么如果想在android7以下使用该怎么做呢?
引入:
在app/build.gradle中使用
compile 'com.annimon:stream:1.1.1'
结果:
0 0
- Failed resolution of:Ljava/util/stream/IntStream
- java.lang.NoClassDefFoundError: Failed resolution of: Ljava/awt/GraphicsEnvironment
- java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/LruCache;
- Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lorg/jxmpp/util/XmppStringUtils;
- java.lang.NoClassDefFoundError: Failed resolution of
- Failed resolution of: Lokhttp3/internal/Platform;
- Failed resolution of: Lcom/lion/ccpay/R$style;
- java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support4/content/ContextCompat;
- java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7
- NoClassDefFoundError: Failed resolution of: Landroid/support/v7/internal/widget/TintManager
- Failed resolution of: Landroid/support/v7/internal/widget/TintManager
- java.lang.NoClassDefFoundError: Failed resolution of: Lcom/baidu/mapapi/SDKInitializer;
- Failed resolution of: Lcom/growingio/android/sdk/agent/VdsAgent;解决方案
- java.lang.NoClassDefFoundError: Failed resolution of: Lokhttp3/internal/Platform
- NoClassDefFoundError:Failed resolution of: Landroid/support/v4/animation/AnimatorCompatHelper
- java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support4/animation/AnimatorCompatHelp
- Gradle sync failed: Cause: com.android.build.gradle.api.BaseVariant.getOutputs()Ljava/util/List
- Gradle sync failed: Cause: com.android.build.gradle.api.BaseVariant.getOutputs()Ljava/util/List
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