RuntimeException 找不到布局 XML 資源

Question

我嘗試為我的 android 應用程序實現加載屏幕。 我的應用程序在許多設備上都運行良好。 我設法將它安裝在幾台設備上，但只有一台。 在一部手機上，當我嘗試啟動應用程序時，它會立即崩潰。 我是通過 APK 安裝應用程序還是直接使用 android studio 安裝應用程序都沒有關系。

這是錯誤消息：

10-19 16:18:35.088 19315-19315/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.jp.einkaufszettellisten, PID: 19315
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.jp.einkaufszettellisten/com.jp.einkaufszettellisten.Activities.Ladebildschirm}: android.content.res.Resources$NotFoundException: File res/drawable/splash_background.xml from drawable resource ID #0x7f070095
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2518)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2580)
        at android.app.ActivityThread.access$1200(ActivityThread.java:162)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1440)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5678)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
     Caused by: android.content.res.Resources$NotFoundException: File res/drawable/splash_background.xml from drawable resource ID #0x7f070095
        at android.content.res.Resources.loadDrawableForCookie(Resources.java:2841)
        at android.content.res.Resources.loadDrawable(Resources.java:2710)
        at android.content.res.Resources.getDrawable(Resources.java:862)
        at android.content.Context.getDrawable(Context.java:458)
        at androidx.core.content.ContextCompat.getDrawable(ContextCompat.java:454)
        at androidx.appcompat.widget.ResourceManagerInternal.getDrawable(ResourceManagerInternal.java:144)
        at androidx.appcompat.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:411)
        at androidx.appcompat.widget.TintTypedArray.getDrawableIfKnown(TintTypedArray.java:86)
        at androidx.appcompat.app.AppCompatDelegateImpl.attachToWindow(AppCompatDelegateImpl.java:647)
        at androidx.appcompat.app.AppCompatDelegateImpl.ensureWindow(AppCompatDelegateImpl.java:623)
        at androidx.appcompat.app.AppCompatDelegateImpl.onCreate(AppCompatDelegateImpl.java:350)
        at androidx.appcompat.app.AppCompatActivity.onCreate(AppCompatActivity.java:105)
        at com.jp.einkaufszettellisten.Activities.Ladebildschirm.onCreate(Ladebildschirm.java:20)
        at android.app.Activity.performCreate(Activity.java:6324)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2471)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2580) 
        at android.app.ActivityThread.access$1200(ActivityThread.java:162) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1440) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:148) 
        at android.app.ActivityThread.main(ActivityThread.java:5678) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
     Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #9: <bitmap> requires a valid 'src' attribute
        at android.graphics.drawable.BitmapDrawable.updateStateFromTypedArray(BitmapDrawable.java:764)
        at android.graphics.drawable.BitmapDrawable.inflate(BitmapDrawable.java:724)
        at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1215)
        at android.graphics.drawable.LayerDrawable.inflateLayers(LayerDrawable.java:254)
        at android.graphics.drawable.LayerDrawable.inflate(LayerDrawable.java:164)
        at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1215)
        at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1124)
        at android.content.res.Resources.loadDrawableForCookie(Resources.java:2818)
        at android.content.res.Resources.loadDrawable(Resources.java:2710) 
        at android.content.res.Resources.getDrawable(Resources.java:862) 
        at android.content.Context.getDrawable(Context.java:458) 
        at androidx.core.content.ContextCompat.getDrawable(ContextCompat.java:454) 
        at androidx.appcompat.widget.ResourceManagerInternal.getDrawable(ResourceManagerInternal.java:144) 
        at androidx.appcompat.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:411) 
        at androidx.appcompat.widget.TintTypedArray.getDrawableIfKnown(TintTypedArray.java:86) 
        at androidx.appcompat.app.AppCompatDelegateImpl.attachToWindow(AppCompatDelegateImpl.java:647) 
        at androidx.appcompat.app.AppCompatDelegateImpl.ensureWindow(AppCompatDelegateImpl.java:623) 
        at androidx.appcompat.app.AppCompatDelegateImpl.onCreate(AppCompatDelegateImpl.java:350) 
        at androidx.appcompat.app.AppCompatActivity.onCreate(AppCompatActivity.java:105) 
        at com.jp.einkaufszettellisten.Activities.Ladebildschirm.onCreate(Ladebildschirm.java:20) 
        at android.app.Activity.performCreate(Activity.java:6324) 
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2471) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2580) 
        at android.app.ActivityThread.access$1200(ActivityThread.java:162) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1440) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:148) 
        at android.app.ActivityThread.main(ActivityThread.java:5678) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

清單中的活動

<activity
            android:name=".Activities.Ladebildschirm"
            android:label="@string/app_name"
            android:theme="@style/SplashTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

崩潰的 class

package com.jp.einkaufszettellisten.Activities;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.app.AppCompatDelegate;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;

public class Ladebildschirm extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        startActivity(new Intent(Ladebildschirm.this, MainActivity.class));
        finish();
    }
}

啟動背景xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:opacity="opaque">
    <!-- The background color, preferably the same as your normal theme -->
    <item android:drawable="@color/backgroundLight"/>
    <!-- Your product logo - 144dp color version of your app icon -->
    <item>
        <bitmap
            android:gravity="center"
            app:srcCompat="@drawable/ic_launcher"
            android:src="@drawable/ic_launcher"/>
    </item>
</layer-list>

樣式資源文件

<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">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="SplashTheme">
        <item name="android:windowBackground">@drawable/splash_background</item>
    </style>

    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />

    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

</resources>

build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.jp.einkaufszettellisten"
        minSdkVersion 21
        targetSdkVersion 28
        versionCode 2
        versionName '2.0.0'
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'com.google.android.material:material:1.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta2'
    implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation 'com.github.yukuku:ambilwarna:2.0.1'
}

我正在嘗試安裝該應用程序的手機正在運行 Android 6.0.1。

我還注意到我的工作區中有兩個 res 文件夾（一個標記為已生成）。 生成的文件夾是空的。 我不知道這是否與我的問題有關。

Answer 1

更改您的 Splash 背景 XML 文件，如下所示：

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:opacity="opaque">
    <!-- The background color, preferably the same as your normal theme -->
    <item android:drawable="@color/backgroundLight"/>
    <!-- Your product logo - 144dp color version of your app icon -->
    <item
         android:gravity="center"
         android:drawable="@drawable/ic_launcher" />
</layer-list>

Answer 2

我找到了問題的答案。

問題是我只在 v24 文件夾中創建了我的可繪制資源。 這導致舊 api 版本出現“找不到資源”錯誤，該版本僅使用非 v24 文件夾中的資源。

希望這對犯同樣錯誤的其他人有所幫助。