我使用非常简单的代码来显示存储为drawables的图像库。所有图像的尺寸均小于200kb，分辨率为1024x576像素。
我的代码在我测试过的4台设备上以及我的大多数用户中运行良好。但是他们中的一些人一直在着名的vm预算记忆问题。
他是我的代码：
在我的活动的onCreate（）方法中：
// set Factory for Image Switcher
imageSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher);
imageSwitcher.setFactory(new MyImageSwitcherFactory());
工厂类：
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;
}
}
以及显示图片的代码：
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，而某些手机活动根本无法启动。
我读过有关回收位图和内存泄漏问题的内容，但我的活动是在单一模式下运行而不是在方向更改时重新创建，因此它始终是相同的活动。我也不直接使用位图。
我可以以某种方式改进我的代码以摆脱这个错误吗？
第一种错误：
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)
第二种错误：
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：
<?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>
答案 0 :(得分：5)
关于位图错误：
您应该考虑对位图进行下采样并在内存中创建它们之前调整它们的大小。看看以下帖子Handling Large Bitmaps
第二个错误是因为运行时无法从Layout XML创建视图层次结构。您在布局中使用自定义视图吗？
编辑：您的布局XML看起来正确，现在您已经发布了整个转储，对我来说唯一的问题是Bitmap的大小。我仍然认为你必须对图像进行下采样。
图片的格式是什么;解压缩为Bitmap时，1024 x 576 JPEG图像可能太大。