谷歌+分享意图不能访问图像 [英] Share Intent of Google+ can not access image

问题描述

我打电话的意图，共享图像。这与大多数供应商，但与Google+的。 Google+的开启活动后没有图像，并显示土司你只能发布存储在您的设备上的照片。同时

i am calling an intent to share an image. this works with most providers, BUT with Google+. Google+ opens the post activity without the image and displays the toast "You can only post photos stored on your device." at the same time.

    File f = storeImage(image); // f = /data/data/com.myapp/files/1333070776978.jpg
    Uri uri = Uri.fromFile(f);

    Intent share = new Intent(Intent.ACTION_SEND);
    share.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 
    share.setType("image/jpeg");
    share.putExtra(Intent.EXTRA_STREAM, uri);
    share.putExtra(Intent.EXTRA_TITLE,"Share that title");
    share.putExtra(Intent.EXTRA_SUBJECT,"Share that subject");
    share.putExtra(Intent.EXTRA_TEXT,"Check that out...");
    share.putExtra("sms_body", "sms body");
    startActivity(Intent.createChooser(share, "Share Image"));

我保存的图片

i save the image with

    Context.openFileOutput(fileName, Context.MODE_WORLD_READABLE);

我的理解是，通过设置FLAG_GRANT_READ_URI_PERMISSION，我给Google+的具体访问该文件。

my understanding was that by setting FLAG_GRANT_READ_URI_PERMISSION, i give Google+ specific access to this file.

它工作时，我的图像存储到MediaStore，但我其实不想杂波的用户图片库。

it works when i store the image into the MediaStore, but i actually don't wanna clutter the users image gallery.

    ContentValues values = new ContentValues(2);
    values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
    values.put(MediaStore.Images.Media.DATA, f.getAbsolutePath());
    Uri uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

任何建议是pciated AP $ P $

any advice is appreciated

西蒙

推荐答案

的Google+不能访问文件：// 尤里斯从另一个应用程序的私有文件夹。而 FLAG_GRANT_READ_URI_PERMISSION 并没有在这种情况下工作，因为它仅适用于URI的数据的意图的一部分，而不是额外的。

Google+ cannot access file:// Uris from the private folder of another application. And the FLAG_GRANT_READ_URI_PERMISSION doesn't work in this case because it's only for Uris in the "data" part of an Intent, but not for extras.

一个常用的解决方法是将它（通过 MediaStore ）添加到库中，但它没有必要这么做。在这种情况下，正确的解决方案是使用一个<一href="http://developer.android.com/reference/android/support/v4/content/FileProvider.html"><$c$c>FileProvider:

One common workaround is to add it to the gallery (via the MediaStore) but it's not necessary to do so. The correct solution in this case is to use a FileProvider:

FileProvider ContentProvider的是一个特殊的子类，它有利于   文件安全共享同一个应用程序创建一个关联   内容：// 的URI的文件，而不是一个文件：/// 乌里

FileProvider is a special subclass of ContentProvider that facilitates secure sharing of files associated with an app by creating a content:// Uri for a file instead of a file:/// Uri.

在AndroidManifest.xml中下面的第一名

First place the following in your AndroidManifest.xml

<provider
    android:name="android.support.v4.content.FileProvider"
    android:authorities="com.myapp.testshare.fileprovider"
    android:grantUriPermissions="true"
    android:exported="false">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/filepaths" />
</provider>

然后在此文件资源\ XML \ filepaths.xml ：

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <files-path name="shared_images" path="shared_images/" />
</paths>

然后，共享图像文件时，请确保它在上面（即 shared_images 在 getFilesDir（））和建立的意图如下：

Then, to share an image file, make sure it's in the path specified above (i.e. shared_images under getFilesDir()) and build the intent as follows:

File file = getImageFileToShare();
Uri fileUri = FileProvider.getUriForFile(this, "com.myapp.testshare.fileprovider", file);

Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra(Intent.EXTRA_STREAM, fileUri);
intent.setType("image/png");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

startActivity(intent);

（请务必在 getUriForFile（）方法中指定的权威之一清单匹配）。

(Make sure the authority specified in the getUriForFile() method matches the one in the manifest).

这将产生一个内容：// 的URI（如内容：//com.myapp.testshare.fileprovider/shared_images/img1.png 的Google+应用将能够访问，并因此包括在后）。

This will produce a content:// Uri (like content://com.myapp.testshare.fileprovider/shared_images/img1.png that the Google+ app will be able to access, and thus include in the post).

这篇关于谷歌+分享意图不能访问图像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！