问题
We've recently released our game onto Android Market but are suffering from a major issue. We are getting emails and bug reports from people all over the world that they aren't able to download our game.
Searching the web for people with similar issues we've found that some are experiencing similar problems, though they can't download any applications at all from the Market. The people we have been dealing with can download everything else except for our game. The people reporting issues have enough memory on their devices both internal and external.
Does anyone have any clue to what the problem can be?
Best Regards, Alex
Edit: Since the problem is download related we've been speculating in that its the Android Manifest file we've have.
What is the first thing that happens when a user downloads an application from Android Market? Because when we try downloading our product the download "starts" and then the error message "Download Unsuccessful" flashes over the bar.
Our product is a paid application and the transaction is successful but then when the user tries to download it they get the error.
It seems as if the error started occurring after we submitted our first updated, though minor and not any game changing I really don't understand how this can effect the Market behavior.
回答1:
It's 47MB! Here's what my Samsung Galaxy S says:
D/DownloadManager( 2973): download aborted - not enough free space in internal storage
D/vending ( 6634): [174] DownloadManagerBroadcastReceiver.handleDownloadCompletedAction(): Got a download completed intent.
I/vending ( 6634): [174] DownloadManagerBroadcastReceiver.startNextDownload(): Found Paused URI null
I/vending ( 6634): [174] DownloadManagerBroadcastReceiver.startNextDownload(): No more paused downloads.
I/vending ( 6634): [174] DownloadManagerBroadcastReceiver.getDownloadStatus(): Unexpected status from download - 498
W/vending ( 6634): [174] DownloadManagerBroadcastReceiver.handleDownloadCompletedAction(): Couldn't find pathname for completed download URI
: content://downloads/download/188 -- assuming the download failed.
D/vending ( 6634): [174] LocalAssetDatabase.notifyListener(): 9122500792911627655 / DOWNLOAD_FAILED
E/DataRouter( 2577): [*] Received suspend/ resume event but DUN is not up so neglect
Not enough internal storage space, unsurprisingly.
What is your installLocation set to? Should be preferExternal (see http://developer.android.com/guide/topics/manifest/manifest-element.html#install)
ADDED LATER
Hoo boy, this sucks...
You can browse the source code for Android's download manager here: http://www.google.com/codesearch/p?hl=en#UMpkw0xvvPU/src/com/android/providers/downloads/Helpers.java
Extrapolating a bit you can do what it does to find out how much space is left in the download cache directory:
File base = Environment.getDownloadCacheDirectory();
long bytesAvailable = getAvailableBytes(base);
public static long getAvailableBytes(File root) {
StatFs stat = new StatFs(root.getPath());
// put a bit of margin (in case creating the file grows the system by a few blocks)
long availableBlocks = (long) stat.getAvailableBlocks() - 4;
return stat.getBlockSize() * availableBlocks;
}
My Samsung Galaxy S reports just 30MB is free in this cache, hence the problem. The phone's overall internal storage however is enormous... I have at least 1.5GB free.
Clearly there is some download cache limiting policy at work. Very annoying for you.
Free bytes in /cache for a few phones
Samsung Galaxy S : 30756KB
Nexus One: 94352KB
Orange San Francisco: 38988KB
回答2:
On March 5, 2012, Google announced a new policy of allowing up to two "expansion files" of up to 2 Gigabytes each. The APK is still limited to 50MB. Here is the announcement:
http://android-developers.blogspot.in/2012/03/android-apps-break-50mb-barrier.html
Since the downloads of such additional files occur separately from the download of your APK, it seems likely that you could solve your problem by moving a chunk of your APK into an expansion file so as to keep the APK size within the smallest download cache limits that you anticipate (e.g., 30MB).
来源：https://stackoverflow.com/questions/4850889/people-cant-download-our-specific-product-in-android-market