Question

我尝试为我的android应用实现加载屏幕。我的应用程序在许多设备上都能正常运行。我设法将其安装在多台设备上，但只有一台。当我尝试启动手机时，该应用程序在一部手机上立即崩溃。不管我是通过APK还是直接通过android studio安装该应用。

这是错误消息：

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)

清单中的活动

<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>

速成班

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();
    }
}

启动背景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>

样式资源文件

<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'
}

我要安装该应用的电话运行的是Android 6.0.1。

我还注意到我的工作区中有两个res文件夹（一个标记为已生成）。生成的文件夹为空。我不知道这是否与我的问题有关。

Answer 1

对Splash背景XML文件进行如下更改：

<?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

我找到了问题的答案。

问题是我仅在v24文件夹中创建了可绘制资源。这会导致旧版api版本上出现“未找到资源”错误，该版本仅使用not v24文件夹中的资源。

希望这对其他犯同样错误的人有所帮助。

RuntimeException找不到布局XML资源

2 个答案: