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java - 方向改变时出现 InflateException

转载 作者：行者123 更新时间：2023-12-02 03:45:06 27 4
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每当我更改屏幕方向时，我的应用程序都会崩溃并出现以下异常。我相信这与 ImageViews 导致模拟器内存​​不足有关，但我无法理解堆栈跟踪。

在 ProfileActivity.java(我想允许改变方向)中，我尝试像这样保存和恢复 ImageView 的实例，但它似乎不起作用:

@Override protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_beer_profile);

    if(savedInstanceState != null){
        ratingImages = (List<ImageView>) savedInstanceState.getSerializable("ratingImages");
    } 
}

@Override protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putSerializable("ratingImages", (Serializable) ratingImages);
}

@Override public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

}

但是，我收到以下运行时异常:

04-01 17:34:29.836 25455-25455/com.myapp.myapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.myapp.myapp, PID: 25455
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myapp.myapp/com.myapp.myapp.ProfileActivity}: android.view.InflateException: Binary XML file line #269: Binary XML file line #269: Error inflating class <unknown>
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4077)
  at android.app.ActivityThread.-wrap15(ActivityThread.java)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1350)
  at android.os.Handler.dispatchMessage(Handler.java:102)
  at android.os.Looper.loop(Looper.java:148)
  at android.app.ActivityThread.main(ActivityThread.java:5417)
  at java.lang.reflect.Method.invoke(Native Method)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #269: Binary XML file line #269: Error inflating class <unknown>
  at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
  at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)
  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
  at com.myapp.myapp.ProfileActivity.onCreate(ProfileActivity.java:46)
  at android.app.Activity.performCreate(Activity.java:6237)
  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4077) 
  at android.app.ActivityThread.-wrap15(ActivityThread.java) 
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1350) 
  at android.os.Handler.dispatchMessage(Handler.java:102) 
  at android.os.Looper.loop(Looper.java:148) 
  at android.app.ActivityThread.main(ActivityThread.java:5417) 
  at java.lang.reflect.Method.invoke(Native Method) 
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: android.view.InflateException: Binary XML file line #269: Error inflating class <unknown>
  at android.view.LayoutInflater.createView(LayoutInflater.java:645)
  at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58)
  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:694)
  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762)
  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:835)
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838)
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838)
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838)
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798)
  at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
  at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257) 
  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109) 
  at com.myapp.myapp.ProfileActivity.onCreate(ProfileActivity.java:46) 
  at android.app.Activity.performCreate(Activity.java:6237) 
  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4077) 
  at android.app.ActivityThread.-wrap15(ActivityThread.java) 
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1350) 
  at android.os.Handler.dispatchMessage(Handler.java:102) 
  at android.os.Looper.loop(Looper.java:148) 
  at android.app.ActivityThread.main(ActivityThread.java:5417) 
  at java.lang.reflect.Method.invoke(Native Method) 
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: java.lang.reflect.InvocationTargetException
  at java.lang.reflect.Constructor.newInstance(Native Method)
  at android.view.LayoutInflater.createView(LayoutInflater.java:619)
  at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58) 
  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:694) 
  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762) 
  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:835) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:515) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257) 
  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109) 
  at com.myapp.myapp.ProfileActivity.onCreate(ProfileActivity.java:46) 
  at android.app.Activity.performCreate(Activity.java:6237) 
  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4077) 
  at android.app.ActivityThread.-wrap15(ActivityThread.java) 
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1350) 
  at android.os.Handler.dispatchMessage(Handler.java:102) 
  at android.os.Looper.loop(Looper.java:148) 
  at android.app.ActivityThread.main(ActivityThread.java:5417) 
  at java.lang.reflect.Method.invoke(Native Method) 
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: java.lang.OutOfMemoryError: Failed to allocate a 4284912 byte allocation with 2835528 free bytes and 2MB until OOM
  at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
  at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
  at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:609)
  at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444)
  at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1080)
  at android.content.res.Resources.loadDrawableForCookie(Resources.java:2635)
  at android.content.res.Resources.loadDrawable(Resources.java:2540)
  at android.content.res.TypedArray.getDrawable(TypedArray.java:870)
  at android.widget.ImageView.<init>(ImageView.java:152)
  at android.widget.ImageView.<init>(ImageView.java:140)
  at android.widget.ImageView.<init>(ImageView.java:136)
  at java.lang.reflect.Constructor.newInstance(Native Method) 
  at android.view.LayoutInflater.createView(LayoutInflater.java:619) 
  at com.android.internal.policy.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:58) 
  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:694) 
  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:762) 
  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:835) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.rInflate(LayoutInflater.java:838) 
  at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:798) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:515) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
  at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257) 
  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109) 
  at com.myapp.myapp.ProfileActivity.onCreate(ProfileActivity.java:46) 
  at android.app.Activity.performCreate(Activity.java:6237) 
  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4077) 
  at android.app.ActivityThread.-wrap15(ActivityThread.java) 
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1350) 
  at android.os.Handler.dispatchMessage(Handler.java:102) 
  at android.os.Looper.loop(Looper.java:148) 
  at android.app.ActivityThread.main(ActivityThread.java:5417) 
  at java.lang.reflect.Method.invoke(Native Method) 
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

编辑:我在物理设备上尝试过此操作，并且它没有崩溃。但是，我仍然想知道如何最好地避免模拟器中出现此问题。我想，模拟器上的内存不足可能意味着我在方向更改时无法正确处理 ImageView。

如有任何帮助，我们将不胜感激。谢谢!

最佳答案

I believe it has something to do with the ImageViews causing the emulator to run out of memory

更准确地说，您放入 ImageView 小部件中的图像是导致崩溃的直接原因。

but I'm having trouble understanding the stack trace.

无论您在 com.myapp.myapp.ProfileActivity 中展开什么布局，其 onCreate() 方法(第 46 行)都有一个 ImageView 指向一个可绘制资源，加载时解码时需要 4284912 字节。这相当于 1035 像素 x 1035 像素的图像。

这相当大。

此外，您没有足够大的空闲内存块来容纳它。部分原因是您已经消耗了大量内存，因为总体上只有 2MB 的可用堆空间，更不用说在单个 block 中了。

I try to save and restore the instances of my ImageViews like this

这是不可能的。

从战术上来说，看一下布局，找到 ImageView 小部件，找到哪些小部件具有非常大的图像，然后停止使用这些非常大的图像。您可能还希望确认正在使用的资源目录，并考虑为较低密度的屏幕使用较低分辨率版本的图像。

从策略上讲，您需要掌控内存消耗。您可以生成堆转储并使用 Android Studio(或其他地方)中的工具来查看堆中的内容以及占用了这么多空间的内容。不幸的是，Google 并没有费心去记录 Android Studio 中的堆分析工具，但是this bit of documentation涵盖内存管理的其他方面，并且this page覆盖内存监视器，向您显示堆使用情况的实时图表(以及您可以通过工具栏按钮触发堆转储的位置)。

关于java - 方向改变时出现 InflateException，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36367938/

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