Question

我当前正在创建一个内置的IOS应用程序的android版本。我需要能够访问AWS服务，并且我的凭证有问题。

快速设置凭据的方法是导入“ awsconfiguration.json”文件，然后编写以下代码：

let credentialsProvider = AWSStaticCredentialsProvider(accessKey:"MY_ACCESS_KEY", secretKey:"MY_KEY")
       let configuration = AWSServiceConfiguration(
           region: AWSRegionType.USWest2,
           credentialsProvider: credentialsProvider)
       AWSServiceManager.default().defaultServiceConfiguration = configuration

我尝试了以下有关AWS的文档中的内容，但无法弄清缺少的内容。我得到了json文件并将其粘贴到/ res / raw文件夹中，并试图从MainActivity中调用以下代码。

https://docs.aws.amazon.com/aws-mobile/latest/developerguide/how-to-android-sdk-setup.html

https://discuss.kotlinlang.org/t/kotlin-aws-credentials/8399

https://docs.aws.amazon.com/aws-mobile/latest/developerguide/getting-started.html

我在IDE（Android Studio）中没有任何错误。但是，当我启动该应用程序时，它立即崩溃，并且我从logcat中收到以下错误：

2018-07-25 14：20：10.476 22581-22581 /？ D / AWSMobileClient：获取认知身份。 2018-07-25 14：20：10.481 22581-22581 /？ D / AndroidRuntime：关闭VM 2018-07-25 14：20：10.484 22581-22581 /？ E / AndroidRuntime：致命异常：main 流程：com.mammothvr.checkarafragments，PID：22581 java.lang.NoClassDefFoundError：无法解决以下问题：Lorg / apache / commons / logging / LogFactory; 在com.amazonaws.util.VersionInfoUtils。（VersionInfoUtils.java:41）在com.amazonaws.util.VersionInfoUtils.getUserAgent（VersionInfoUtils.java:77）在com.amazonaws.ClientConfiguration。（ClientConfiguration.java:43）在com.amazonaws.mobile.auth.core.IdentityManager。（IdentityManager.java:212）在com.amazonaws.mobile.client.AWSMobileClient.fetchCognitoIdentity（AWSMobileClient.java:280）在com.amazonaws.mobile.client.AWSMobileClient.initializeWithBuilder（AWSMobileClient.java:186）在com.amazonaws.mobile.client.AWSMobileClient.access $ 100（AWSMobileClient.java:74）在com.amazonaws.mobile.client.AWSMobileClient $ InitializeBuilder.execute（AWSMobileClient.java:446）在com.mammothvr.checkarafragments.MainActivity.onCreate（MainActivity.kt：60）在android.app.Activity.performCreate（Activity.java:7136）在android.app.Activity.performCreate（Activity.java:7127）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1271）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2893）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:3048）在android.app.servertransaction.LaunchActivityItem.execute（LaunchActivityItem.java:78）在android.app.servertransaction.TransactionExecutor.executeCallbacks（TransactionExecutor.java:108）在android.app.servertransaction.TransactionExecutor.execute（TransactionExecutor.java:68）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1808）在android.os.Handler.dispatchMessage（Handler.java:106）在android.os.Looper.loop（Looper.java:193）在android.app.ActivityThread.main（ActivityThread.java:6669）在java.lang.reflect.Method.invoke（本机方法）在com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run（RuntimeInit.java:493）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:858） 2018-07-25 14：20：10.485 22581-22581 /？ E / AndroidRuntime：由以下原因引起： java.lang.ClassNotFoundException：找不到类路径上的“ org.apache.commons.logging.LogFactory”：DexPathList [[zip文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/base.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_dependencies_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_resources_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_0_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_1_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_2_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_3_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_4_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_5_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_6_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_7_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_8_apk.apk”，压缩文件 “ /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_9_apk.apk"]，nativeLibraryDirectories=[/data/app/com.mammothvr.checkarafragments-T8bCup9/W6KQQPP /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/base.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_dependencies_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_resources_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_0_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_1_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_2_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_3_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_4_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_5_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_6_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_7_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_8_apk.apk!/lib/arm64-v8a， /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_slice_9_apk.apk!/lib/arm64-v8a， / system / lib64]] 在dalvik.system.BaseDexClassLoader.findClass（BaseDexClassLoader.java:134）在java.lang.ClassLoader.loadClass（ClassLoader.java:379）在java.lang.ClassLoader.loadClass（ClassLoader.java:312） ...另外24个禁止：java.io.IOException：找不到用于dex位置的原始dex文件 /data/app/com.mammothvr.checkarafragments-T8bCup9H6KQ50PJscwADAQ==/split_lib_resources_apk.apk 在dalvik.system.DexFile.openDexFileNative（本机方法）在dalvik.system.DexFile.openDexFile（DexFile.java:354）在dalvik.system.DexFile。（DexFile.java:101）在dalvik.system.DexFile。（DexFile.java:75）在dalvik.system.DexPathList.loadDexFile（DexPathList.java:394）在dalvik.system.DexPathList.makeDexElements（DexPathList.java:354）在dalvik.system.DexPathList。（DexPathList.java:164）在dalvik.system.BaseDexClassLoader。（BaseDexClassLoader.java:74）在dalvik.system.BaseDexClassLoader。（BaseDexClassLoader.java:65）在dalvik.system.PathClassLoader。（PathClassLoader.java:64） 2018-07-25 14：20：10.485 22581-22581 /？ E / AndroidRuntime：位于 com.android.internal.os.ClassLoaderFactory.createClassLoader（ClassLoaderFactory.java:73）在com.android.internal.os.ClassLoaderFactory.createClassLoader（ClassLoaderFactory.java:88）在android.app.ApplicationLoaders.getClassLoader（ApplicationLoaders.java:74）在android.app.ApplicationLoaders.getClassLoader（ApplicationLoaders.java:40）在android.app.LoadedApk.createOrUpdateClassLoaderLocked（LoadedApk.java:727）在android.app.LoadedApk.getClassLoader（LoadedApk.java:810）在android.app.LoadedApk.getResources（LoadedApk.java:1032）在android.app.ContextImpl.createAppContext（ContextImpl.java:2345）在android.app.ActivityThread.handleBindApplication（ActivityThread.java:5749）在android.app.ActivityThread.access $ 1100（ActivityThread.java:199）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1650） ...还有6个

这是我的MainActivity Kotlin代码：

package com.mammothvr.checkarafragments

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import android.view.View
import android.widget.Toast
import androidx.fragment.app.Fragment
import androidx.fragment.app.FragmentTransaction
import com.amazonaws.auth.AWSCredentials
import com.amazonaws.auth.AWSCredentialsProvider
import com.amazonaws.auth.BasicAWSCredentials
import com.amazonaws.mobile.auth.core.IdentityHandler
import com.amazonaws.mobile.auth.core.IdentityManager
import kotlinx.android.synthetic.main.activity_main.*
import com.amazonaws.mobile.client.AWSMobileClient;
import com.amazonaws.mobile.client.AWSMobileClient.InitializeBuilder
import com.amazonaws.mobile.config.AWSConfiguration
import androidx.core.app.CoreComponentFactory


class MainActivity : AppCompatActivity() {

    companion object {

        //AWS singleton link to mobile client
        private val TAG: String = this::class.java.simpleName
        // Used to load the 'native-lib' library on application startup.
        init {
            System.loadLibrary("native-lib")
        }
    }

    private var credentialsProvider: AWSCredentialsProvider? = null
    private var awsConfiguration: AWSConfiguration? = null


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        AWSMobileClient.getInstance().initialize(this) {

           // val credentials: AWSCredentials = BasicAWSCredentials("MY_ACCESS_KEY", "MY_KEY")

            credentialsProvider = AWSMobileClient.getInstance().credentialsProvider
            awsConfiguration = AWSMobileClient.getInstance().configuration

            IdentityManager.getDefaultIdentityManager().getUserID(object : IdentityHandler {
                override fun handleError(exception: Exception?) {
                    Log.e(TAG, "Retrieving identity: ${exception?.message}")
                }

                override fun onIdentityId(identityId: String?) {
                    Log.d(TAG, "Identity = $identityId")
                    val cachedIdentityId = IdentityManager.getDefaultIdentityManager().cachedUserID
                    // Do something with the identity here
                }
            })
        }.execute()

        hideSystemUI()

        val fragment = LoginFragment.newInstance()
        replaceFragment(fragment)

    }

    private fun replaceFragment(fragment: Fragment){
        val fragmentTransaction = supportFragmentManager.beginTransaction()
        fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE).replace(R.id.fragmentContainer, fragment).commit()
    }



    private fun hideSystemUI() {

        val decorView = window.decorView
        decorView?.systemUiVisibility = (View.SYSTEM_UI_FLAG_IMMERSIVE
                // Set the content to appear under the system bars so that the
                // content doesn't resize when the system bars hide and show.
                or View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                // Hide the nav bar and status bar
                or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                or View.SYSTEM_UI_FLAG_FULLSCREEN)
    }

    external fun stringFromJNI(): String
}

这是我的成绩依赖性：

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.0-alpha3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha3'
    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    implementation 'pub.devrel:easypermissions:1.1.3'
    implementation 'com.android.support:design:27.1.1'

    implementation ('com.amazonaws:aws-android-sdk-s3:2.6.+') { transitive = true }
    implementation ('com.amazonaws:aws-android-sdk-rekognition:2.6.+') { transitive = true }
    implementation ('com.amazonaws:aws-android-sdk-cognitoauth:2.6.+@aar') { transitive = true }
    implementation ('com.amazonaws:aws-android-sdk-cognitoidentityprovider:2.6.+') { transitive = true }
    implementation ('com.amazonaws:aws-android-sdk-mobile-client:2.6.+@aar') { transitive = true }
    implementation ('com.amazonaws:aws-android-sdk-cognitoauth:2.6.+@aar') { transitive = true }


    // Cognito UserPools for SignIn
    implementation 'com.android.support:support-v4:26.+'
    implementation ('com.amazonaws:aws-android-sdk-auth-userpools:2.6.+@aar') { transitive = true }

    // Sign in UI Library
    implementation 'com.android.support:appcompat-v7:26.+'
    implementation ('com.amazonaws:aws-android-sdk-auth-ui:2.6.+@aar') { transitive = true }

}

这是我的第一个Android项目，主要来自c＃/ swift背景。任何帮助将不胜感激。

Answer 1

找不到类org.apache.commons.logging.LogFactory。您需要将commons-logging添加到依赖项。

在Kotlin中设置AWS凭证时出错

1 个答案: