问题
I keep getting this error when I run my app. The app will compile fine and once I start interacting with it (ImageSlider) sometimes it breaks and comes up with that message.
LogCat
02-18 12:25:05.426: E/AndroidRuntime(4545): FATAL EXCEPTION: main
02-18 12:25:05.426: E/AndroidRuntime(4545): java.lang.OutOfMemoryError
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:493)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:299)
02-18 12:25:05.426: E/AndroidRuntime(4545): at com.oneplc.viessmannapp.imageslider.adapter.FullScreenImageAdapter.instantiateItem(FullScreenImageAdapter.java:59)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:832)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.support.v4.view.ViewPager.populate(ViewPager.java:1016)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.support.v4.view.ViewPager.populate(ViewPager.java:914)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.support.v4.view.ViewPager$3.run(ViewPager.java:244)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.support.v4.view.ViewPager.completeScroll(ViewPager.java:1761)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:1894)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1629)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1684)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1684)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1684)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1684)
02-18 12:25:05.426: E/AndroidRuntime(4545): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1917)
02-18 12:25:05.426: E/AndroidRuntime(4545): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1371)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.app.Activity.dispatchTouchEvent(Activity.java:2364)
02-18 12:25:05.426: E/AndroidRuntime(4545): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1865)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.View.dispatchPointerEvent(View.java:5721)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:2890)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2466)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewRootImpl.processInputEvents(ViewRootImpl.java:845)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2475)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.os.Handler.dispatchMessage(Handler.java:99)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.os.Looper.loop(Looper.java:137)
02-18 12:25:05.426: E/AndroidRuntime(4545): at android.app.ActivityThread.main(ActivityThread.java:4424)
02-18 12:25:05.426: E/AndroidRuntime(4545): at java.lang.reflect.Method.invokeNative(Native Method)
02-18 12:25:05.426: E/AndroidRuntime(4545): at java.lang.reflect.Method.invoke(Method.java:511)
02-18 12:25:05.426: E/AndroidRuntime(4545): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
02-18 12:25:05.426: E/AndroidRuntime(4545): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
02-18 12:25:05.426: E/AndroidRuntime(4545): at dalvik.system.NativeStart.main(Native Method)
THE CLASS RESPONSIBLE / FullScreenImageAdapter.java at line : 59
public class FullScreenImageAdapter extends PagerAdapter {
private Activity _activity;
private ArrayList<String> _imagePaths;
private LayoutInflater inflater;
// constructor
public FullScreenImageAdapter(Activity activity,
ArrayList<String> imagePaths) {
this._activity = activity;
this._imagePaths = imagePaths;
}
@Override
public int getCount() {
return this._imagePaths.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((RelativeLayout) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
TouchImageView imgDisplay;
Button btnClose;
inflater = (LayoutInflater) _activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View viewLayout = inflater.inflate(R.layout.layout_fullscreen_image, container,
false);
imgDisplay = (TouchImageView) viewLayout.findViewById(R.id.imgDisplay);
btnClose = (Button) viewLayout.findViewById(R.id.btnClose);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap bitmap = BitmapFactory.decodeFile(_imagePaths.get(position), options);
imgDisplay.setImageBitmap(bitmap);
// close button click event
btnClose.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
_activity.finish();
}
});
((ViewPager) container).addView(viewLayout);
return viewLayout;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((RelativeLayout) object);
}
}
COMMENTS
I saw some other threads but they where not helpfull, or at least not implementable on my case.
Any idea how can I tacle this issue?
回答1:
If Google docs didn't help (and they have some neat techniques), as a last resort you can try adding
android:largeHeap="true" to the <application> tag in the AndroidManifest.xml. But really, last resort.
回答2:
You should look at this article on android dev site http://developer.android.com/training/displaying-bitmaps/index.html . You should load bitmap asynchronously, because you are decoding file and its expensive operation and you should also first load bitmap size and than scale it to real size of imageview
回答3:
you should use this......
@Override
public Object instantiateItem(ViewGroup container, int position) {
final TouchImageView imgDisplay;
inflater = (LayoutInflater) _activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View viewLayout = inflater.inflate(
R.layout.layout_fullscreen_image, container, false);
imgDisplay = (TouchImageView) viewLayout
.findViewById(R.id.imgDisplay);
final ProgressBar spinner = (ProgressBar) viewLayout
.findViewById(R.id.loading);
// btnShare = (Button) viewLayout.findViewById(R.id.btnShare);
imageLoader.displayImage(_imagePaths.get(position).get("url"),
imgDisplay, options, new ImageLoadingListener() {
@Override
public void onLoadingStarted() {
spinner.setVisibility(View.VISIBLE);
}
@Override
public void onLoadingFailed(FailReason failReason) {
String message = null;
switch (failReason) {
case IO_ERROR:
message = "Input/Output error";
break;
case OUT_OF_MEMORY:
message = "Out Of Memory error";
break;
case UNKNOWN:
message = "Unknown error";
break;
}
Toast.makeText(FullScreenViewActivity.this,
message, Toast.LENGTH_SHORT).show();
spinner.setVisibility(View.GONE);
imgDisplay
.setImageResource(android.R.drawable.ic_delete);
}
@Override
public void onLoadingComplete(Bitmap loadedImage) {
spinner.setVisibility(View.GONE);
Animation anim = AnimationUtils
.loadAnimation(FullScreenViewActivity.this,
R.anim.fade_in);
imgDisplay.setAnimation(anim);
anim.start();
}
@Override
public void onLoadingCancelled() {
// Do nothing
}
});
((ViewPager) container).addView(viewLayout, 0);
return viewLayout;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((FrameLayout) object);
}
}
Add this code on onCreate() method..
private DisplayImageOptions options;
options = new DisplayImageOptions.Builder()
.showImageForEmptyUri(R.drawable.ic_launcher).cacheOnDisc()
.imageScaleType(ImageScaleType.IN_SAMPLE_INT).build();
Add universal-image-loader-1.6.1-with-src.jar jar file to your libs folder.
UPDATE:
private DisplayImageOptions options;
public FullScreenImageAdapter(Activity activity,
ArrayList<String> imagePaths) {
this._activity = activity;
this._imagePaths = imagePaths;
options = new DisplayImageOptions.Builder()
.showImageForEmptyUri(R.drawable.ic_launcher).cacheOnDisc()
.imageScaleType(ImageScaleType.IN_SAMPLE_INT).build();
}
回答4:
if anyone trying to get images from sqlite and getting outOfMemory error try following :
cursor = adapter.getAllrecords(); //get your table records in cursor
//moving to the current position in cursor
cursor.moveToPosition(position);
byte [] image = cursor.getBlob(cursor.getColumnIndex("image"));
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
bitmapImage = BitmapFactory.decodeByteArray(image, 0, image.length, options);
imageView.setImageBitmap(decodeSampledBitmapFromResource(80, 80));//pass height and
//width as per your requirement
public int calculateInSampleSize( BitmapFactory.Options options, int reqWidth, int
reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
&& (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
public Bitmap decodeSampledBitmapFromResource(int reqWidth, int reqHeight) {
// First decode with inJustDecodeBounds=true
to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeByteArray(image, 0, image.length, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
return BitmapFactory.decodeByteArray(image, 0, image.length, options);
}
this code worked for me..however according to developer guideliness we should handle image related task using AsyncTask...we should not run it on UI thread.
来源：https://stackoverflow.com/questions/21854072/fatal-exception-main-java-lang-outofmemoryerror-at-android-graphics-bitmapfacto