NewFromFD失败nativeDe codeFileDescriptor - Android 4.4系统 [英] NewFromFD failed in nativeDecodeFileDescriptor - Android 4.4
问题描述
我已经使用的Android示例项目ContactsList（<一href="http://developer.android.com/shareables/training/ContactsList.zip">http://developer.android.com/shareables/training/ContactsList.zip)作为一个例子来拓展人脉活动在我的应用程序。 它完美地工作在所有的Android版本，但在Android 4.4系统不会被加载联系人图片，我得到了以下错误：
I have used Android sample project ContactsList (http://developer.android.com/shareables/training/ContactsList.zip) as an example to develop contacts Activity in my app. It is working perfectly on all Android versions, but in Android 4.4 the contact images are not being loaded and I get the following error:
NewFromFD failed in nativeDecodeFileDescriptor
这发生时正在执行此方法：
This happens while this method is being executed:
BitmapFactory.decodeFileDescriptor(fileDescriptor, null, options);
和它总是返回null。
and it always returns null.
要获得文件描述符本身我用这个方法：
To get the fileDescriptor itself I use this method:
private Bitmap loadContactPhotoThumbnail(String photoData, int imageSize) {
if (!isAdded() || getActivity() == null) {
return null;
}
AssetFileDescriptor afd = null;
try {
Uri thumbUri;
if (Utils.hasHoneycomb()) {
thumbUri = Uri.parse(photoData);
Log.d("imageloader", photoData);
} else {
final Uri contactUri = Uri.withAppendedPath(Contacts.CONTENT_URI,photoData);
thumbUri = Uri.withAppendedPath(contactUri, Photo.CONTENT_DIRECTORY);
}
afd = getActivity().getContentResolver().openAssetFileDescriptor(thumbUri, "r");
Log.d("imageloader", afd.toString());
FileDescriptor fileDescriptor = null;
try{
fileDescriptor = afd.getFileDescriptor();
Log.d("imageloader", fileDescriptor.toString());
} catch (NullPointerException e){
e.printStackTrace();
}
if (fileDescriptor != null) {
return ImageLoader.decodeSampledBitmapFromDescriptor(
fileDescriptor, imageSize, imageSize);
}
} catch (FileNotFoundException e) {
if (BuildConfig.DEBUG) {
Log.d(TAG, "Contact photo thumbnail not found for contact " + photoData
+ ": " + e.toString());
}
} finally {
if (afd != null) {
try {
afd.close();
} catch (IOException e) {
}
}
}
return null;
}
和 photoData 是 Contacts.PHOTO_THUMBNAIL_URI 摘自 ContactsContract .Contacts.CONTENT_URI
and the photoData is the Contacts.PHOTO_THUMBNAIL_URI taken from ContactsContract.Contacts.CONTENT_URI.
这里是所提到的code日志输出的某一部分：
And here is some part of log output of the mentioned code:
12-09 21:15:04.683: D/ImageCache(12531): Memory cache created (size = 6554)
12-09 21:15:05.024: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.024: D/imageloader(12531): content://com.android.contacts/contacts/296/photo
12-09 21:15:05.034: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[54]} start=0 len=-1}
12-09 21:15:05.034: D/imageloader(12531): FileDescriptor[54]
12-09 21:15:05.044: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.044: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.054: D/imageloader(12531): content://com.android.contacts/contacts/300/photo
12-09 21:15:05.064: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[54]} start=0 len=-1}
12-09 21:15:05.064: D/imageloader(12531): FileDescriptor[54]
12-09 21:15:05.074: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.084: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.084: D/imageloader(12531): content://com.android.contacts/contacts/318/photo
12-09 21:15:05.114: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[54]} start=0 len=-1}
12-09 21:15:05.114: D/imageloader(12531): FileDescriptor[54]
12-09 21:15:05.114: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.114: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.114: D/imageloader(12531): content://com.android.contacts/contacts/319/photo
12-09 21:15:05.124: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[54]} start=0 len=-1}
12-09 21:15:05.124: D/imageloader(12531): FileDescriptor[54]
12-09 21:15:05.124: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.124: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.124: D/imageloader(12531): content://com.android.contacts/contacts/320/photo
12-09 21:15:05.144: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[54]} start=0 len=-1}
12-09 21:15:05.144: D/imageloader(12531): FileDescriptor[54]
12-09 21:15:05.144: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.144: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.144: D/imageloader(12531): content://com.android.contacts/contacts/302/photo
12-09 21:15:05.154: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[55]} start=0 len=-1}
12-09 21:15:05.154: D/imageloader(12531): FileDescriptor[55]
12-09 21:15:05.154: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.164: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.164: D/imageloader(12531): content://com.android.contacts/contacts/301/photo
12-09 21:15:05.164: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[55]} start=0 len=-1}
12-09 21:15:05.164: D/imageloader(12531): FileDescriptor[55]
12-09 21:15:05.174: D/ImageLoader(12531): doInBackground - finished work
12-09 21:15:05.174: D/ImageLoader(12531): doInBackground - starting work
12-09 21:15:05.174: D/imageloader(12531): content://com.android.contacts/contacts/304/photo
12-09 21:15:05.184: D/imageloader(12531): {AssetFileDescriptor: {ParcelFileDescriptor: FileDescriptor[55]} start=0 len=-1}
12-09 21:15:05.184: D/imageloader(12531): FileDescriptor[55]
12-09 21:15:05.184: D/ImageLoader(12531): doInBackground - finished work
任何人可以帮助我解决这个问题，好吗？
Can anybody help me with this problem, please?
推荐答案
我有同样的问题，虽然我不知道什么是我发现了一个解决方案，它适用于奇巧和功放的问题;软糖（4.2.2）。所有你需要做的就是打开文件作为的InputStream ，而不是 AssetFileDescriptor 。我用这个code：
I had the same problem, and although I do not know what is the problem I found a solution, which works on KitKat & JellyBean (4.2.2). All you have to do is opening the file as an InputStream instead of a AssetFileDescriptor. I used this code:
private Bitmap loadContactPhotoThumbnail(String photoData) {
InputStream is = null;
try {
Uri thumbUri;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
thumbUri = Uri.parse(photoData);
} else {
final Uri contactUri = Uri.withAppendedPath(
Contacts.CONTENT_URI, photoData);
thumbUri = Uri.withAppendedPath(contactUri, Contacts.Photo.CONTENT_DIRECTORY);
}
is = getContentResolver().openInputStream(thumbUri);
if (is != null) {
return BitmapFactory.decodeStream(is);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
这是相同的code，你可以找到在<一个href="http://developer.android.com/training/contacts-provider/display-contact-badge.html#SetURIThumbnail">Display联系挂件，唯一的修改是，它使用的InputStream 。
It's the same code that you can find at Display contact badge, the only modification is that it uses InputStream.
这篇关于NewFromFD失败nativeDe codeFileDescriptor - Android 4.4系统的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
