FileProvider:发送文件时没有数据
我已经配置了一个FileProvider,我试图发送文件,但处理意图的外部应用程序(Google Drive等)会抛出一个错误,表明该意图中不包含任何数据。我在这里错过了什么?FileProvider:发送文件时没有数据
File backupPath = new File(getContext().getFilesDir(), "backups"); File backupFile = new File(backupPath, clickedBackup.getFilename());
Uri contentUri = getUriForFile(getContext(), "com.test.app.fileprovider", backupFile);
// create new Intent
Intent intent = new Intent(Intent.ACTION_SEND);
// set flag to give temporary permission to external app to use your FileProvider
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setDataAndType(
contentUri,
getContext().getContentResolver().getType(contentUri));
// validate that the device can open your File!
PackageManager pm = getActivity().getPackageManager();
if (intent.resolveActivity(pm) != null) {
startActivity(intent);
}
logcat中显示以下内容:
12-18 12:47:55.554 1698 2490 I ActivityManager: START u0 {act=android.intent.action.SEND dat=content://com.test.app.fileprovider/backups/20171918_121910.bak typ=application/octet-stream flg=0x3000001 cmp=com.google.android.apps.docs/.shareitem.UploadMenuActivity} from uid 10079
内容URI对我来说很好,但由于某种原因,它不工作。有任何想法吗?
这里是提供者路径。
<paths> <files-path name="backups" path="backups/" />
</paths>
最后,提供者声明。
<provider android:name="android.support.v4.content.FileProvider"
android:authorities="com.test.app.fileprovider"
android:grantUriPermissions="true"
android:exported="false">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/exposed_filepaths" />
</provider>
UPDATE:logcat中也显示出其可能是或不是关键问题就在这里
12-18 13:21:23.739 4818 6764 E DataSourceHelper: Uploading single file but neither EXTRA_STREAM nor EXTRA_TEXT is specified. 12-18 13:21:23.790 1431 1483 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 8298496
12-18 13:21:23.796 1431 1483 I chatty : uid=1000(system) HwBinder:1431_1 identical 1 line
12-18 13:21:23.807 1431 1483 D gralloc_ranchu: gralloc_alloc: Creating ashmem region of size 8298496
12-18 13:21:23.824 4818 4818 E UploadMenuActivity: No files requested to be uploaded: android.intent.action.SEND
EDIT 2如下:添加这使得它工作得很好:
intent.putExtra(Intent.EXTRA_STREAM, contentUri);
回答:
变化:
intent.setDataAndType(contentUri, getContext().getContentResolver().getType(contentUri));
到:
intent.setType(contentUri, "application/octet-stream"); intent.putExtra(Intent.EXTRA_STREAM, contentUri);
ACTION_SEND
使用EXTRA_STREAM
—不是Uri
方面的的—用于通过Uri
发送。而且由于您知道MIME类型,因此使用IPC调用通过ContentResolver
派生它是没有意义的。
回答:
我认为你必须设置缺少的类型。尝试添加如下:
intent.setType("image/*|application/pdf|audio/*");
更多详情,请访问https://developer.android.com/training/sharing/send.html
以上是 FileProvider:发送文件时没有数据 的全部内容, 来源链接: utcz.com/qa/263102.html