Question

我是android中的Instant app的新手，并在以下链接中供参考： https://codelabs.developers.google.com/codelabs/android-instant-apps/#6

可安装的apk和具有单一功能的即时应用程序正常运行。

但是当我尝试运行多功能即时应用程序时，它会崩溃（从上面的链接开始执行步骤7）。

崩溃报告：

 E: FATAL EXCEPTION: main
    Process: com.bhaveshdesai.topekaapk, PID: 17609
    java.lang.IncompatibleClassChangeError: Structural change of android.support.v4.app.Fragment is hazardous (/data/app/com.bhaveshdesai.topekaapk-PhiyPZ303gxpikP7GugKyA==/oat/x86/split_topekaui.odex at compile time, /data/app/com.bhaveshdesai.topekaapk-PhiyPZ303gxpikP7GugKyA==/oat/x86/base.odex at runtime): Virtual method count off: 111 vs 150
    Landroid/support/v4/app/Fragment; (Compile time):
    Static fields:
     I ACTIVITY_CREATED
     I CREATED
     I INITIALIZING
     I RESUMED
     I STARTED
     I STOPPED
     .....

功能Gradle文件：

apply plugin: 'com.android.feature'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    dataBinding {
        enabled true
    }

    defaultConfig {
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation project(':topeka-base')
}

应用程序Gradle文件：

/*
 * Copyright 2015 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

//apply plugin: 'com.android.application'
apply plugin: 'com.android.feature'
android {
    baseFeature = true

    compileSdkVersion 26
    buildToolsVersion "26.0.0"

    dataBinding {
        enabled = true
    }

    defaultConfig {
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
    }

    buildTypes {
        release {
            minifyEnabled false
        }
    }

    packagingOptions {
        exclude 'LICENSE.txt'
    }
}

ext {
    supportLibVersion = "25.4.0"
    espressoVersion = "2.2.2"
    androidTestVersion = "0.5"
    hamcrestVersion = "1.3"
    junitVersion = "4.12"
}

dependencies {
    api "com.android.support:appcompat-v7:${supportLibVersion}"
    api "com.android.support:cardview-v7:${supportLibVersion}"
    api "com.android.support:design:${supportLibVersion}"
    api "com.android.support:recyclerview-v7:${supportLibVersion}"
    api "com.android.support.test.espresso:espresso-idling-resource:${espressoVersion}"
    testApi "junit:junit:${junitVersion}"

    androidTestApi("com.android.support.test.espresso:espresso-core:${espressoVersion}") {
        exclude module: "espresso-idling-resource"
        exclude group: "com.android.support"
    }
    androidTestApi("com.android.support.test.espresso:espresso-contrib:${espressoVersion}") {
        exclude module: "espresso-core"
        exclude module: "recyclerview-v7"
        exclude group: "com.android.support"
    }
    androidTestApi("com.android.support.test:rules:${androidTestVersion}") {
        exclude group: "com.android.support"
    }

    androidTestApi("com.android.support.test:runner:${androidTestVersion}") {
        exclude group: "com.android.support"
    }

    androidTestApi "org.hamcrest:hamcrest-core:${hamcrestVersion}"

    feature project(":topekaui")
    application project(":topekaapk")
}

请帮我解决这个崩溃。

Answer 1

经过这么多尝试后我发现了问题。

问题是由于使用android.support.v4.app.Fragment

将android.support.v4.app.Fragment改为android.app.Fragment之后。

Answer 2

当您对库进行不兼容的二进制更改并且不重新编译客户端代码时，通常会发生

IncompatibleClassChangeError。请参阅What causes java.lang.IncompatibleClassChangeError?（但这可能不是您问题的真正原因）

你在什么步骤之后得到了崩溃？

但是，我现在看到的是，您的功能gradle文件具有以下依赖项implementation project(':topeka-base')，而它应该包含api project(':topeka-base')。（假设你的功能gradle = topeka-ui gradle）

托皮卡-UI /的build.gradle

将所有预先生成的依赖项替换为   以下依赖：
dependencies {
    api project(':topeka-base')
}

请仔细检查codelab说明，确保您没有错过任何步骤。

多功能即时应用程序崩溃问题

2 个答案: