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社区首页 >问答首页 >imageSwitcher和内存错误

问imageSwitcher和内存错误
EN

Stack Overflow用户
提问于 2011-03-03 03:35:38
回答 1查看 3.3K关注 0票数 6

我使用非常简单的代码来显示存储为可绘图的图像库。所有图像的大小小于200 in，分辨率为1024x576像素。

我的代码在我测试过的4台设备上运行良好，而且对我的大多数用户来说也是如此。但是他们中的一些人仍然会遇到著名的vm预算内存问题。

他是我的准则：

在我的活动的onCreate()方法中：

代码语言：javascript
复制
// set Factory for Image Switcher
imageSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher);
imageSwitcher.setFactory(new MyImageSwitcherFactory());

工厂级：

代码语言：javascript
复制
private class MyImageSwitcherFactory implements ViewFactory {
public View makeView() {
    ImageView imageView = new ImageView(Main.this);
    imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
    imageView.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
    return imageView;
}
}

以及显示图像的代码：

代码语言：javascript
复制
try {
    // this is internal image loaded from drawables
    imageSwitcher.setImageResource(images.get(imageNumber - 1).imageResourceID);

} catch (Exception e) {
    // no image will be shown
}

错误发生在一些手机上(在下载中占很小的百分比)，在尝试/捕捉块中，有些手机的活动甚至根本无法启动。

我读过关于回收位图和内存泄漏问题的文章，但是我的活动是以单头模式运行的，而不是在更改方向时重新创建的，所以它总是相同的活动。我也不直接使用位图。

我能以某种方式改进我的代码以消除这个错误吗？

第一类错误：

代码语言：javascript
复制
java.lang.OutOfMemoryError: bitmap size exceeds VM budget
    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:464)
    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:340)
    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
    at android.content.res.Resources.loadDrawable(Resources.java:1705)
    at android.content.res.Resources.getDrawable(Resources.java:580)
    at android.widget.ImageView.resolveUri(ImageView.java:548)
    at android.widget.ImageView.setImageResource(ImageView.java:270)
    at android.widget.ImageSwitcher.setImageResource(ImageSwitcher.java:41)
    at com.mobilebabytoys.animalsoundsfree.Main.showNextImage(Main.java:356)
    at com.mobilebabytoys.animalsoundsfree.Main.access$0(Main.java:284)
    at com.mobilebabytoys.animalsoundsfree.Main$MyGestureDetector.onFling(Main.java:861)
    at android.view.GestureDetector.onTouchEvent(GestureDetector.java:517)
    at com.mobilebabytoys.animalsoundsfree.Main$8.onTouch(Main.java:218)
    at android.view.View.dispatchTouchEvent(View.java:3705)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:874)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:924)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:924)
    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1695)
    at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1116)
    at android.app.Activity.dispatchTouchEvent(Activity.java:2068)
    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1679)
    at android.view.ViewRoot.handleMessage(ViewRoot.java:1697)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4568)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    at dalvik.system.NativeStart.main(Native Method)

第二类错误：

代码语言：javascript
复制
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mobilebabytoys.animalsoundsfree/com.mobilebabytoys.animalsoundsfree.Main}: android.view.InflateException: Binary XML file line #15: Error inflating class <unknown>
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621)
    at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3812)
    at android.app.ActivityThread.access$2300(ActivityThread.java:126)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1936)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4595)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #15: Error inflating class <unknown>
    at android.view.LayoutInflater.createView(LayoutInflater.java:513)
    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
    at android.app.Activity.setContentView(Activity.java:1629)
    at com.mobilebabytoys.animalsoundsfree.Main.onCreate(Main.java:154)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544)
    ... 12 more
Caused by: java.lang.reflect.InvocationTargetException
    at android.widget.ImageButton.<init>(ImageButton.java:78)
    at java.lang.reflect.Constructor.constructNative(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
    at android.view.LayoutInflater.createView(LayoutInflater.java:500)
    ... 23 more
Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:464)
    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:340)
    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
    at android.content.res.Resources.loadDrawable(Resources.java:1705)
    at android.content.res.Resources.getDrawable(Resources.java:580)
    at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:160)
    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:788)
    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:729)
    at android.content.res.Resources.loadDrawable(Resources.java:1690)
    at android.content.res.TypedArray.getDrawable(TypedArray.java:548)
    at android.widget.ImageView.<init>(ImageView.java:115)
    at android.widget.ImageButton.<init>(ImageButton.java:82)
    ... 27 more
android.view.InflateException: Binary XML file line #15: Error inflating class <unknown>
    at android.view.LayoutInflater.createView(LayoutInflater.java:513)
    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
    at android.app.Activity.setContentView(Activity.java:1629)
    at com.mobilebabytoys.animalsoundsfree.Main.onCreate(Main.java:154)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621)
    at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3812)
    at android.app.ActivityThread.access$2300(ActivityThread.java:126)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1936)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4595)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
    at android.widget.ImageButton.<init>(ImageButton.java:78)
    at java.lang.reflect.Constructor.constructNative(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
    at android.view.LayoutInflater.createView(LayoutInflater.java:500)
    ... 23 more
Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:464)
    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:340)
    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
    at android.content.res.Resources.loadDrawable(Resources.java:1705)
    at android.content.res.Resources.getDrawable(Resources.java:580)
    at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:160)
    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:788)
    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:729)
    at android.content.res.Resources.loadDrawable(Resources.java:1690)
    at android.content.res.TypedArray.getDrawable(TypedArray.java:548)
    at android.widget.ImageView.<init>(ImageView.java:115)
    at android.widget.ImageButton.<init>(ImageButton.java:82)
    ... 27 more
java.lang.reflect.InvocationTargetException
    at android.widget.ImageButton.<init>(ImageButton.java:78)
    at java.lang.reflect.Constructor.constructNative(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
    at android.view.LayoutInflater.createView(LayoutInflater.java:500)
    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
    at android.app.Activity.setContentView(Activity.java:1629)
    at com.mobilebabytoys.animalsoundsfree.Main.onCreate(Main.java:154)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621)
    at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3812)
    at android.app.ActivityThread.access$2300(ActivityThread.java:126)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1936)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4595)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:464)
    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:340)
    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
    at android.content.res.Resources.loadDrawable(Resources.java:1705)
    at android.content.res.Resources.getDrawable(Resources.java:580)
    at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:160)
    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:788)
    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:729)
    at android.content.res.Resources.loadDrawable(Resources.java:1690)
    at android.content.res.TypedArray.getDrawable(TypedArray.java:548)
    at android.widget.ImageView.<init>(ImageView.java:115)
    at android.widget.ImageButton.<init>(ImageButton.java:82)
    ... 27 more
java.lang.OutOfMemoryError: bitmap size exceeds VM budget
    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:464)
    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:340)
    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
    at android.content.res.Resources.loadDrawable(Resources.java:1705)
    at android.content.res.Resources.getDrawable(Resources.java:580)
    at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:160)
    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:788)
    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:729)
    at android.content.res.Resources.loadDrawable(Resources.java:1690)
    at android.content.res.TypedArray.getDrawable(TypedArray.java:548)
    at android.widget.ImageView.<init>(ImageView.java:115)
    at android.widget.ImageButton.<init>(ImageButton.java:82)
    at android.widget.ImageButton.<init>(ImageButton.java:78)
    at java.lang.reflect.Constructor.constructNative(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
    at android.view.LayoutInflater.createView(LayoutInflater.java:500)
    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
    at android.app.Activity.setContentView(Activity.java:1629)
    at com.mobilebabytoys.animalsoundsfree.Main.onCreate(Main.java:154)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621)
    at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3812)
    at android.app.ActivityThread.access$2300(ActivityThread.java:126)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1936)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4595)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
    at dalvik.system.NativeStart.main(Native Method)

我的活动布局：

代码语言：javascript
复制
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/MainLayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:keepScreenOn="true">
    <ImageSwitcher
        android:keepScreenOn="true"
        android:id="@+id/ImageSwitcher"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">
    </ImageSwitcher>

</RelativeLayout>
android
image
memory
EN

回答 1

Stack Overflow用户

发布于 2011-03-03 03:41:26

关于位图错误：

在内存中创建位图之前，您应该考虑对位图进行采样并调整它们的大小。看看下面的线程处理大型位图

第二个错误是因为运行时无法从布局XML创建视图层次结构。您是否在布局中使用自定义视图？

编辑：您的布局XML看起来是正确的，现在您已经发布了整个转储，在我看来，唯一的问题是位图的大小。我仍然坚持认为，你将不得不降低样本图像。

图像的格式是什么；1024x576 JPEG图像解压缩到Bitmap时可能太大。

看看这些讨论是否给出了任何提示：1、2、3.。

票数 5
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/5176367

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