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imageSwitcher and memory errors

开发者 https://www.devze.com 2023-02-14 07:05 出处：网络
I am using very simple code to show gallery of images stored as drawables. All images are less than 200kb in size and 1024x576 pixels resolution.
相关专题：androidmemory

I am using very simple code to show gallery of images stored as drawables. All images are less than 200kb in size and 1024x576 pixels resolution.

my code works fine on 4 devices I tested and for the most of my users. But some of them keep getting famous vm budget memory issue.

he is my code:

in onCreate() method of my activity:

// set Factory for Image Switcher
imageSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher);
imageSwitcher.setFactory(new MyImageSwitcherFactory());

Factory class:

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;
}
}

and the code to show images:

try {
    // this is internal image loaded from drawables
    imageSwitcher.setImageResource(images.get(imageNumber - 1).imageResourceID);

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

error happens on some phones (very very small percent of downloads) in try/catch block and with some phones activity cannot even start at all.

I read about recycling bitmaps and memory leaks issues, but my activity is run in sigle-top mode and not recreated on orientation changes, so it is always the same activity. I also do not use bitmaps directly.

Can I improve my code somehow to get rid of this error?

first type of error:

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)

second type of error:

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开发者_JAVA百科.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)

my activity layout:

<?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>

About the Bitmap error:
You should consider down sampling your bitmap and resize them before creating them in memory. take a look at the following thread Handling Large Bitmaps

The second errors is cause the runtime is unable to create a view hierarchy from the Layout XML. Are you using a custom view in your layout?

Edit: your layout XML looks correct and now that you've posted entire dump, to me the only problem is size of the Bitmap. I still maintain that you will have to down sample the images.

What is the format of your images; a 1024 x 576 JPEG image could be too big when decompressed into Bitmap.

See if any of these discussions give any pointers: 1, 2, 3.

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