java.lang.SecurityException:权限拒绝:不允许仅在 KitKat 上发送广播 android.intent.action.MEDIA_MOUNTED [英] java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.intent.action.MEDIA_MOUNTED on KitKat only

问题描述

我正在使用 DownloadManager 从我们的服务器下载图像，并将文件放在 externalFilesDir 中.

I am using the DownloadManager to download images off our server and I am placing the files in the externalFilesDir.

我发送了一个广播意图，因为我不希望这些下载的图像出现在图库中.

I am send out a broadcast intent because I don't want these downloaded images to appear in the gallery.

sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + context.getExternalFilesDir(null))));

我之前只在我的 Galaxy S3 Jelly Bean 4.3 上测试过它并且它可以工作，但是当我在 KitKat 4.4 上测试它时它使应用程序崩溃.

I only tested this on my Galaxy S3 Jelly Bean 4.3 prior and it was working, but when I tested it on KitKat 4.4 it crashes the app.

有没有更好的方法让从 DownloadManager 下载的文件不出现在手机图库中?

堆栈跟踪

06-05 17:34:41.940: E/AndroidRuntime(15410): FATAL EXCEPTION: main
06-05 17:34:41.940: E/AndroidRuntime(15410): Process: com.walintukai.lfdate, PID: 15410
06-05 17:34:41.940: E/AndroidRuntime(15410): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.intent.action.DOWNLOAD_COMPLETE flg=0x10 pkg=com.walintukai.lfdate (has extras) } in com.walintukai.lfdate.SocketIOService$1@42359f40
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:778)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.os.Handler.handleCallback(Handler.java:733)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.os.Handler.dispatchMessage(Handler.java:95)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.os.Looper.loop(Looper.java:136)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.app.ActivityThread.main(ActivityThread.java:5057)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at java.lang.reflect.Method.invokeNative(Native Method)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at java.lang.reflect.Method.invoke(Method.java:515)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at dalvik.system.NativeStart.main(Native Method)
06-05 17:34:41.940: E/AndroidRuntime(15410): Caused by: java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.intent.action.MEDIA_MOUNTED from pid=15410, uid=10135
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.os.Parcel.readException(Parcel.java:1465)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.os.Parcel.readException(Parcel.java:1419)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.app.ActivityManagerProxy.broadcastIntent(ActivityManagerNative.java:2390)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.app.ContextImpl.sendBroadcast(ContextImpl.java:1127)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.content.ContextWrapper.sendBroadcast(ContextWrapper.java:365)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at com.walintukai.lfdate.SocketIOService$1.onReceive(SocketIOService.java:111)
06-05 17:34:41.940: E/AndroidRuntime(15410):    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:768)
06-05 17:34:41.940: E/AndroidRuntime(15410):    ... 9 more

推荐答案

看来 google 正试图阻止 KITKAT 出现这种情况.
查看 core/rest/AndroidManifest.xml 您会注意到广播 android.intent.action.MEDIA_MOUNTED 现在受到保护.这意味着它是一个只有系统可以发送的广播.

It seems that google is trying to prevent this from KITKAT.
Looking at core/rest/AndroidManifest.xml you will notice that broadcast android.intent.action.MEDIA_MOUNTED is protected now. Which means it is a broadcast that only the system can send.

<protected-broadcast android:name="android.intent.action.MEDIA_MOUNTED" />

以下内容适用于所有版本:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
    final Intent scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
    final Uri contentUri = Uri.fromFile(outputFile); 
    scanIntent.setData(contentUri);
    sendBroadcast(scanIntent);
} else {
    final Intent intent = new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory()));
    sendBroadcast(intent);
}

<小时>

如果上述方法不起作用，请尝试以下操作:

---

If the above is not working try the following:

根据此帖子，您需要另一种方法来修复它.
就像使用 MediaScannerConnection 或 ACTION_MEDIA_SCANNER_SCAN_FILE.

According to this post you need another way to fix it.
Like using MediaScannerConnection or ACTION_MEDIA_SCANNER_SCAN_FILE.

MediaScannerConnection.scanFile(this, new String[] {

file.getAbsolutePath()},

null, new MediaScannerConnection.OnScanCompletedListener() {

public void onScanCompleted(String path, Uri uri)

{


}

});

这篇关于java.lang.SecurityException:权限拒绝:不允许仅在 KitKat 上发送广播 android.intent.action.MEDIA_MOUNTED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！