Android Studio中Kotlin应用闪退原因及解决方案

问题：

在Android Studio中用Kotlin开发，安装后，启动是APP闪退了，日志如下： ---------------------------- PROCESS STARTED (20357) for package com.example.activitylifecycletest ---------------------------- 2024-08-13 18:03:27.603 20357-20377 HwActivityThreadImpl com.example.activitylifecycletest I before connect app.socketName:c73de58a-5183-41ed-a5f1-34f830a18725 2024-08-13 18:03:27.606 20357-20378 ActivityThread com.example.activitylifecycletest I Init compatible state: true 2024-08-13 18:03:27.607 20357-20378 HwFramewor...rtsFactory com.example.activitylifecycletest D HwFrameworkSecurityPartsFactory in. 2024-08-13 18:03:27.607 20357-20378 HwFramewor...rtsFactory com.example.activitylifecycletest I add HwFrameworkSecurityPartsFactory to memory. 2024-08-13 18:03:27.607 20357-20378 BehaviorCollectManager com.example.activitylifecycletest D hook process for AI virus second 2024-08-13 18:03:27.609 20357-20378 BehaviorCollectManager com.example.activitylifecycletest I bindAnalyzerService: huawei.android.security.IAppBehaviorDataAnalyzer$Stub$Proxy@260ba2c pid:20357 2024-08-13 18:03:27.634 20357-20357 ApplicationLoaders com.example.activitylifecycletest D createClassLoader zip: /data/app/com.example.activitylifecycletest-9Py_U4qoIkgdgyCgflox6g==/base.apk librarySearchPath: /data/app/com.example.activitylifecycletest-9Py_U4qoIkgdgyCgflox6g==/lib/arm64 libraryPermittedPath: /data/user/0/com.example.activitylifecycletest parent: java.lang.BootClassLoader@bf0bbd1 targetSdkVersion: 34 isBundled: false classLoaderName: null sharedLibraries: null 2024-08-13 18:03:27.779 20357-20357 tylifecycletes com.example.activitylifecycletest I HwMultiThreadDexLoader location /data/app/com.example.activitylifecycletest-9Py_U4qoIkgdgyCgflox6g==/base.apk start threadNum=3 2024-08-13 18:03:27.801 20357-20377 HwActivityThreadImpl com.example.activitylifecycletest E connect Error. 2024-08-13 18:03:27.802 20357-20377 HwActivityThreadImpl com.example.activitylifecycletest W closeStream error. 2024-08-13 18:03:27.802 20357-20377 HwActivityThreadImpl com.example.activitylifecycletest I connectContinuePreload end mPreloadStatus 3 2024-08-13 18:03:27.803 20357-20377 RtgSchedEvent com.example.activitylifecycletest I mRtgVideoEnable:false 2024-08-13 18:03:27.875 20357-20378 HwApiCacheMangerEx com.example.activitylifecycletest I apicache path=/storage/emulated/0 state=mounted key=com.example.activitylifecycletest#10510#256 2024-08-13 18:03:27.875 20357-20378 HwApiCacheMangerEx com.example.activitylifecycletest I need clear apicache,because volumes changed,oldCnt=0 newCnt=1 2024-08-13 18:03:27.876 20357-20378 HwApiCacheMangerEx com.example.activitylifecycletest I apicache path=/storage/emulated/0 state=mounted key=com.example.activitylifecycletest#10510#0 2024-08-13 18:03:27.876 20357-20378 HwApiCacheMangerEx com.example.activitylifecycletest I need clear apicache,because volumes changed,oldCnt=1 newCnt=1 2024-08-13 18:03:27.878 20357-20378 AwareBitmapCacher com.example.activitylifecycletest I init processName:com.example.activitylifecycletest pid=20357 uid=10510 2024-08-13 18:03:27.879 20357-20401 AwareLog com.example.activitylifecycletest E AtomicFileUtils: readFileLines file not exist: android.util.AtomicFile@354d18 2024-08-13 18:03:27.890 20357-20357 HwTypeface com.example.activitylifecycletest I updateFont: scale=1.0 2024-08-13 18:03:27.890 20357-20357 SystemFonts com.example.activitylifecycletest D areFontsVariable: script=Hant 2024-08-13 18:03:27.890 20357-20357 ActivityThread com.example.activitylifecycletest I finishPreloaded preloadStatus 3 2024-08-13 18:03:27.891 20357-20357 ActivityThread com.example.activitylifecycletest I finishPreloaded end preloadStatus 3 2024-08-13 18:03:27.891 20357-20357 RmeSchedManager com.example.activitylifecycletest I init Rme, version is: v1.0 2024-08-13 18:03:27.891 20357-20357 RmeSchedManager com.example.activitylifecycletest I init Rme, version is: v1.0 2024-08-13 18:03:27.903 20357-20357 OpenGLRenderer com.example.activitylifecycletest D disableOutlineDraw is true 2024-08-13 18:03:27.904 20357-20403 OpenGLRenderer com.example.activitylifecycletest I RenderThread: progress name = [com.example.activitylifecycletest], viewCornerType = 0 2024-08-13 18:03:27.905 20357-20405 iGraphics com.example.activitylifecycletest I [0020080c] pn: com.example.activitylifecycletest, p: 20357 2024-08-13 18:03:27.905 20357-20405 iGraphics com.example.activitylifecycletest I [0030080c] no spt app: com.example.activitylifecycletest 2024-08-13 18:03:27.938 20357-20357 AppCompatDelegate com.example.activitylifecycletest D Checking for metadata for AppLocalesMetadataHolderService : Service not found 2024-08-13 18:03:27.950 20357-20357 ActivityThread com.example.activitylifecycletest V callActivityOnCreate 2024-08-13 18:03:27.966 20357-20357 MainActivity信息 com.example.activitylifecycletest D onCreate 2024-08-13 18:03:27.975 20357-20357 DecorView[] com.example.activitylifecycletest I pkgName:com.example.activitylifecycletest old windowMode:0 new windoMode:1, isFixedSize:false 2024-08-13 18:03:27.982 20357-20357 BlockMonitor com.example.activitylifecycletest I dispatchingThrewException In MainThread 2024-08-13 18:03:27.982 20357-20357 AndroidRuntime com.example.activitylifecycletest D Shutting down VM 2024-08-13 18:03:27.982 20357-20357 QarthLog com.example.activitylifecycletest I [PatchStore] createDisableExceptionQarthFile 2024-08-13 18:03:27.982 20357-20357 QarthLog com.example.activitylifecycletest I [PatchStore] create disable file for com.example.activitylifecycletest uid is 10510 2024-08-13 18:03:27.983 20357-20357 AndroidRuntime com.example.activitylifecycletest E FATAL EXCEPTION: main Process: com.example.activitylifecycletest, PID: 20357 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.activitylifecycletest/com.example.activitylifecycletest.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4071) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4258) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:91) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:103) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2624) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:219) at android.app.ActivityThread.main(ActivityThread.java:8679) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109) Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor(AppCompatDelegateImpl.java:926) at androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor(AppCompatDelegateImpl.java:889) at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:772) at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:197) at com.example.activitylifecycletest.MainActivity.onCreate(MainActivity.kt:17) at android.app.Activity.performCreate(Activity.java:8214) at android.app.Activity.performCreate(Activity.java:8202) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1320) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4044) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4258) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:91) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:103) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2624) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:219) at android.app.ActivityThread.main(ActivityThread.java:8679) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109) 2024-08-13 18:03:27.988 20357-20357 Process com.example.activitylifecycletest I Sending signal. PID: 20357 SIG: 9 ---------------------------- PROCESS ENDED (20357) for package com.example.activitylifecycletest ---------------------------- 2024-08-13 18:03:28.101 1678-2805 WindowManager system_server E win=Window{6d7c9ad u0 Splash Screen com.example.activitylifecycletest EXITING} destroySurfaces: appStopped=false win.mWindowRemovalAllowed=true win.mRemoveOnExit=true

请分析原因，并修复源代码。

答案：

根据日志信息，应用程序在启动时崩溃，主要原因是 MainActivity 没有使用 Theme.AppCompat 主题或其子类。具体的错误信息如下：

java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.

这个错误通常是由于在 AndroidManifest.xml 中没有为 MainActivity 指定合适的主题，或者在代码中没有正确设置主题。

解决方法

检查 AndroidManifest.xml 文件

确保在 AndroidManifest.xml 文件中为 MainActivity 指定了一个 Theme.AppCompat 主题或其子类。通常情况下，你可以使用 Theme.AppCompat.Light.DarkActionBar 或其他自定义的 AppCompat 主题。

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity"
        android:theme="@style/AppTheme.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

检查 styles.xml 文件

确保在 res/values/styles.xml 文件中定义了一个继承自 Theme.AppCompat 的主题。例如：

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="AppTheme.NoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

检查 MainActivity 的 onCreate 方法

确保在 MainActivity 的 onCreate 方法中没有覆盖主题设置。通常情况下，你不需要在代码中显式设置主题，但如果你有特殊需求，可以在 onCreate 方法中设置主题。

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        // Ensure the theme is set before calling super.onCreate
        setTheme(R.style.AppTheme_NoActionBar)
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

完整示例

以下是一个完整的示例，展示了如何在 AndroidManifest.xml 和 styles.xml 中正确设置主题，以及 MainActivity 的 onCreate 方法。

AndroidManifest.xml:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.activitylifecycletest">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

res/values/styles.xml:

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="AppTheme.NoActionBar" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

MainActivity.kt:

package com.example.activitylifecycletest

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        // Ensure the theme is set before calling super.onCreate
        setTheme(R.style.AppTheme_NoActionBar)
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

通过以上修改，应该可以解决应用程序启动时的崩溃问题。

Android Studio中Kotlin应用闪退原因及解决方案

使用 GPT-4o 回答，作者 GPT4oMini.app

解决方法

完整示例