1

我用过

compileSdkVersion 23
buildToolsVersion "23.0.3"

defaultConfig {
    minSdkVersion 14
    targetSdkVersion 23
    ...
    multiDexEnabled true
}

dependencies {
    compile 'com.android.support:multidex:1.0.1'
    ...
}

app-级build.gradle

<manifest package="com.example"
...
    <application
        android:name=".AppContext"
        ...
    >
>

manifest很长一段时间内因为我的应用程序肯定引用了超过 64K 的方法。现在我已将其更改为Android Studio 3.3.2multidex下的新 SDK 和 lib

compileSdkVersion 27
buildToolsVersion "27.0.3"


defaultConfig {
    minSdkVersion 14
    targetSdkVersion 27
    ...
    multiDexEnabled true
}

dependencies {
    compile 'com.android.support:multidex:1.0.3'
    ...
}

在所有可用的 Android 4.X 设备上安装时,应用程序已经开始崩溃。大多数崩溃都有如下堆栈跟踪:

java.lang.RuntimeException:
at android.app.ActivityThread.installProvider (ActivityThread.java:5236)
at android.app.ActivityThread.installContentProviders (ActivityThread.java:4828)
at android.app.ActivityThread.handleBindApplication (ActivityThread.java:4711)
at android.app.ActivityThread.access$1600 (ActivityThread.java:175)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1368)
at android.os.Handler.dispatchMessage (Handler.java:102)
at android.os.Looper.loop (Looper.java:146)
at android.app.ActivityThread.main (ActivityThread.java:5602)
at java.lang.reflect.Method.invokeNative (Native Method)
at java.lang.reflect.Method.invoke (Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1099)
at dalvik.system.NativeStart.main (Native Method)
Caused by: java.lang.ClassNotFoundException:
at dalvik.system.BaseDexClassLoader.findClass (BaseDexClassLoader.java:67)
at java.lang.ClassLoader.loadClass (ClassLoader.java:497)
at java.lang.ClassLoader.loadClass (ClassLoader.java:457)
at android.app.ActivityThread.installProvider (ActivityThread.java:5221)

我发现解决问题的唯一方法是排除

//    compile 'com.android.support:multidex:1.0.3'

app水平build.gradle和变化

public class AppContext extends Application {
...}

public class AppContext extends MultiDexApplication {
...}

是bugbuild tools 27.x.x还是什么!?

4

2 回答 2

1

你可以试试这个方法

1) 删除

multiDexEnabled 真

来自应用程序 gradle 并且只添加

实现'com.android.support:multidex:1.0.3'

到您的应用程序依赖项

像这样

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
android {
compileSdkVersion 27
defaultConfig {
    applicationId "com.heizolscout.itclanbd.heizolscout"
    minSdkVersion 18
    targetSdkVersion 27
    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 fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support:multidex:1.0.3'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
implementation 'com.android.support:support-v4:27.1.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
于 2019-03-18T05:18:58.677 回答
1

我在我的一个应用程序中遇到了同样的问题。使用像这样扩展的应用程序MultiDexApplication

public class AppContext extends MultiDexApplication {

  ...

}

并使用这样的 multidex 依赖项:

compile 'com.android.support:multidex:1.0.3'

没用。

我通过MultiDex.install在应用程序类中使用来解决它。像这样的东西:

import android.support.multidex.MultiDex;

public class AppContext extends Application {

   ...

   @Override
   protected void attachBaseContext(Context base) {
     super.attachBaseContext(base);
     MultiDex.install(this);
   }
}
于 2019-03-18T05:45:04.907 回答