blocks|key|1128267|text|安装SD卡时，系统会扫描SD卡，以查找任何新的映像(和其他)文件。如果以编程方式添加文件，则可以使用此类：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1128268|http://developer.android.com/reference/android/media/MediaScannerConnection.html|offset|length|1128269|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|28|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

The system scans the SD card when it is mounted to find any new image (and other) files. If you are programmatically adding a file, then you can use this class:

<a href="http://developer.android.com/reference/android/media/MediaScannerConnection.html" rel="noreferrer">http://developer.android.com/reference/android/media/MediaScannerConnection.html</a>

blocks|key|1343753|text|一个更简单的解决方案是使用静态的方便方法scanFile()|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1343754|File+imageFile+=+...
MediaScannerConnection.scanFile(this,+new+String[]+{+imageFile.getPath()+},+new+String[]+{+"image/jpeg"+},+null);|code-block|syntax|javascript|1343755|其中this是您的活动(或任何上下文)，只有当您使用非标准文件扩展名并且null用于可选回调时，mime类型才是必需的(对于如此简单的情况，我们不需要)。|style|CODE|1343756|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/media/MediaScannerConnection.html#scanFile%2528android.content.Context,%2520java.lang.String%255B%255D,%2520java.lang.String%255B%255D,%2520android.media.MediaScannerConnection.OnScanCompletedListener%2529^0|K|A|0|0|0|2|4|10|4|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@$A|10|B|11|K|L]|$A|12|B|13|K|L]]|9|@]|C|$]]|$1|M|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

A simpler solution is to use the static convenience method <a href="http://developer.android.com/reference/android/media/MediaScannerConnection.html#scanFile%28android.content.Context,%20java.lang.String%5B%5D,%20java.lang.String%5B%5D,%20android.media.MediaScannerConnection.OnScanCompletedListener%29">scanFile()</a>:

<pre><code>File imageFile = ...
MediaScannerConnection.scanFile(this, new String[] { imageFile.getPath() }, new String[] { "image/jpeg" }, null);
</code></pre>

where <code>this</code> is your activity (or whatever context), the mime-type is only necessary if you are using non-standard file extensions and the <code>null</code> is for the optional callback (which we don't need for such a simple case).

blocks|key|1343525|text|我对原问题和其他可能有这个问题的人的回答是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1343526|我也遇到了同样的问题，我的应用程序中保存到SD卡中的图像没有立即显示在他们的图库中。经过一些搜索，我发现在我的'save+to+sdcard‘代码后面插入了这行代码，它解决了这个问题：|1343527|sendBroadcast(new+Intent(Intent.ACTION_MEDIA_MOUNTED,+Uri.parse("file://"%2B+Environment.getExternalStorageDirectory())));|code-block|syntax|javascript|1343528|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

My answer to the original question and to anyone else that may have this problem:

I was having this same problem, images in my app that people saved to the SD card were not showing up in their Gallery immediately. After some searching I found this one line of code inserted after my 'save to sdcard' code that fixed the problem:

<pre><code>sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
</code></pre>

blocks|key|1343565|text|您还可以按意图将图像添加到媒体库中，请查看示例代码以了解如何完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1343566|ContentValues+image+=+new+ContentValues();

image.put(Images.Media.TITLE,+imageTitle);
image.put(Images.Media.DISPLAY_NAME,+imageDisplayName);
image.put(Images.Media.DESCRIPTION,+imageDescription);
image.put(Images.Media.DATE_ADDED,+dateTaken);
image.put(Images.Media.DATE_TAKEN,+dateTaken);
image.put(Images.Media.DATE_MODIFIED,+dateTaken);
image.put(Images.Media.MIME_TYPE,+"image/png");
image.put(Images.Media.ORIENTATION,+0);

+File+parent+=+imageFile.getParentFile();
+String+path+=+parent.toString().toLowerCase();
+String+name+=+parent.getName().toLowerCase();
+image.put(Images.ImageColumns.BUCKET_ID,+path.hashCode());
+image.put(Images.ImageColumns.BUCKET_DISPLAY_NAME,+name);
+image.put(Images.Media.SIZE,+imageFile.length());

+image.put(Images.Media.DATA,+imageFile.getAbsolutePath());

+Uri+result+=+context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,+image);|code-block|syntax|javascript|1343567|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can also add an Image to the Media Gallery by intent, have a look at the example code to see how it is done: 

<pre><code>ContentValues image = new ContentValues();

image.put(Images.Media.TITLE, imageTitle);
image.put(Images.Media.DISPLAY_NAME, imageDisplayName);
image.put(Images.Media.DESCRIPTION, imageDescription);
image.put(Images.Media.DATE_ADDED, dateTaken);
image.put(Images.Media.DATE_TAKEN, dateTaken);
image.put(Images.Media.DATE_MODIFIED, dateTaken);
image.put(Images.Media.MIME_TYPE, "image/png");
image.put(Images.Media.ORIENTATION, 0);

 File parent = imageFile.getParentFile();
 String path = parent.toString().toLowerCase();
 String name = parent.getName().toLowerCase();
 image.put(Images.ImageColumns.BUCKET_ID, path.hashCode());
 image.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, name);
 image.put(Images.Media.SIZE, imageFile.length());

 image.put(Images.Media.DATA, imageFile.getAbsolutePath());

 Uri result = context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, image);
</code></pre>

blocks|key|1343795|text|包括Android+KITKAT在内的图库更新|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1343796|if+(Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.KITKAT)
{
++++++++Intent+mediaScanIntent+=+new+Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
++++++++File+f+=+new+File("file://"%2B+Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES));
++++++++Uri+contentUri+=+Uri.fromFile(f);
++++++++mediaScanIntent.setData(contentUri);
++++++++this.sendBroadcast(mediaScanIntent);
}
else
{
++++++++sendBroadcast(new+Intent(Intent.ACTION_MEDIA_MOUNTED,+Uri.parse("file://"+%2B+Environment.getExternalStorageDirectory())));
}|code-block|syntax|javascript|1343797|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Gallery refresh including Android KITKAT

<pre><code>if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.KITKAT)
{
 Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
 File f = new File("file://"+ Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES));
 Uri contentUri = Uri.fromFile(f);
 mediaScanIntent.setData(contentUri);
 this.sendBroadcast(mediaScanIntent);
}
else
{
 sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));
}
</code></pre>

blocks|key|1128319|text|下面是MediaScannerConnection的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1128320|MyMediaConnectorClient+client+=+new+MyMediaConnectorClient(newfile);
MediaScannerConnection+scanner+=+new+MediaScannerConnection(context,+client);
client.setScanner(scanner);
scanner.connect();|code-block|syntax|javascript|1128321|newfile是新文件/已保存文件的file对象。|1128322|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here is the code for the MediaScannerConnection:

<pre><code>MyMediaConnectorClient client = new MyMediaConnectorClient(newfile);
MediaScannerConnection scanner = new MediaScannerConnection(context, client);
client.setScanner(scanner);
scanner.connect();
</code></pre>

newfile is the File object of your new/saved file.

blocks|key|1128427|text|模拟器中有一个应用程序，上面写着-‘Dev+Tools’|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1128428|单击该按钮并选择“Media+Scanning”..所有的图像都会被扫描|1128429|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

there is an app in the emulator that says - ' Dev Tools' 

click on that and select ' Media Scanning'.. all the images ll get scanned

blocks|key|1128456|text|让您的activity实现'MediaScannerConnectionClient‘并将其添加到您的activity中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1128457|private+void+startScan()+
{+
++++if(conn!=null)+conn.disconnect();++
++++conn+=+new+MediaScannerConnection(YourActivity.this,YourActivity.this);+
++++conn.connect();+
}+

@Override+
public+void+onMediaScannerConnected()+{+
++++try{
++++++++conn.scanFile(yourImagePath,+"image/*");
+++++++}+catch+(java.lang.IllegalStateException+e){
+++++++}
}

@Override+
public+void+onScanCompleted(String+path,+Uri+uri)+{+
++++conn.disconnect();+
}+|code-block|syntax|javascript|1128458|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Let your activity implement 'MediaScannerConnectionClient'
and add this to your activity:

<pre><code>private void startScan() 
{ 
 if(conn!=null) conn.disconnect(); 
 conn = new MediaScannerConnection(YourActivity.this,YourActivity.this); 
 conn.connect(); 
} 

@Override 
public void onMediaScannerConnected() { 
 try{
 conn.scanFile(yourImagePath, "image/*");
 } catch (java.lang.IllegalStateException e){
 }
}

@Override 
public void onScanCompleted(String path, Uri uri) { 
 conn.disconnect(); 
} 
</code></pre>

blocks|key|1343834|text|这对我很有用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1343835|File+file+=+.....+//+Save+file

context.sendBroadcast(new+Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,+Uri.fromFile(file)));|code-block|syntax|javascript|1343836|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

this work with me 

<pre><code>File file = ..... // Save file

context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(file)));
</code></pre>

blocks|key|1128594|text|+File+folderGIF+=+new+File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)+%2B+"/newgif2");++++//path+where+gif+will+be+stored
success+=+folderGIF.mkdir();++++//make+directory
+String+finalPath+=+folderGIF+%2B+"/test1.gif";++//path+of+file
.....
/*+changes+in+gallery+app+if+any+changes+in+done*/
+MediaScannerConnection.scanFile(this,
++++++++++++++++++++new+String[]{finalPath},+null,
++++++++++++++++++++new+MediaScannerConnection.OnScanCompletedListener()+{
++++++++++++++++++++++++public+void+onScanCompleted(String+path,+Uri+uri)+{
++++++++++++++++++++++++++++Log.i("ExternalStorage",+"Scanned+"+%2B+path+%2B+":");
++++++++++++++++++++++++++++Log.i("ExternalStorage",+"->+uri="+%2B+uri);
++++++++++++++++++++++++}
++++++++++++++++++++});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1128595|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> File folderGIF = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/newgif2"); //path where gif will be stored
success = folderGIF.mkdir(); //make directory
 String finalPath = folderGIF + "/test1.gif"; //path of file
.....
/* changes in gallery app if any changes in done*/
 MediaScannerConnection.scanFile(this,
 new String[]{finalPath}, null,
 new MediaScannerConnection.OnScanCompletedListener() {
 public void onScanCompleted(String path, Uri uri) {
 Log.i("ExternalStorage", "Scanned " + path + ":");
 Log.i("ExternalStorage", "-&gt; uri=" + uri);
 }
 });
</code></pre>

blocks|key|1343629|text|我的MyMediaConnectorClient代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1343630|public+class+MyMediaConnectorClient+implements+MediaScannerConnectionClient+{

++++String+_fisier;
++++MediaScannerConnection+MEDIA_SCANNER_CONNECTION;

++++public+MyMediaConnectorClient(String+nume)+{
++++++++_fisier+=+nume;
++++}

++++public+void+setScanner(MediaScannerConnection+msc){
++++++++MEDIA_SCANNER_CONNECTION+=+msc;
++++}

++++@Override
++++public+void+onMediaScannerConnected()+{
++++++++MEDIA_SCANNER_CONNECTION.scanFile(_fisier,+null);
++++}

++++@Override
++++public+void+onScanCompleted(String+path,+Uri+uri)+{
++++++++if(path.equals(_fisier))
++++++++++++MEDIA_SCANNER_CONNECTION.disconnect();
++++}
}|code-block|syntax|javascript|1343631|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

My code for MyMediaConnectorClient:

<pre><code>public class MyMediaConnectorClient implements MediaScannerConnectionClient {

 String _fisier;
 MediaScannerConnection MEDIA_SCANNER_CONNECTION;

 public MyMediaConnectorClient(String nume) {
 _fisier = nume;
 }

 public void setScanner(MediaScannerConnection msc){
 MEDIA_SCANNER_CONNECTION = msc;
 }

 @Override
 public void onMediaScannerConnected() {
 MEDIA_SCANNER_CONNECTION.scanFile(_fisier, null);
 }

 @Override
 public void onScanCompleted(String path, Uri uri) {
 if(path.equals(_fisier))
 MEDIA_SCANNER_CONNECTION.disconnect();
 }
}
</code></pre>

blocks|key|1128474|text|保存图像后使用此选项|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1128475|sendBroadcast(new+Intent(Intent.ACTION_MEDIA_MOUNTED,+Uri.parse("file://"%2B+Environment.getExternalStorageDirectory())));|code-block|syntax|javascript|1128476|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use this after saving the image

<pre><code>sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
</code></pre>

blocks|key|1343934|text|您需要为Gallery应用程序提供权限。只需长按主屏幕中的图库应用程序图标，然后点击屏幕顶部弹出的“应用程序信息”。执行此操作将显示图库应用程序设置。现在转到权限选项卡中，通过切换来启用存储和摄像头权限。现在转到你的原生图库应用程序，你会得到你保存的图像。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1343935|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You need to give permissions to the Gallery app.
Just long press the gallery app icon in the home screen and tap on 'APP INFO' that pops up at the top of the screen. Doing it will show the gallery app settings. Now go in Permissions tab and enable the storage, camera permissions by toggling it.
Now go to your native gallery app and you will get the your saved images.

blocks|key|1128784|text|这也将解决你的问题，如果你的图片在画廊中没有显示，他们可能会在中间显示一个404类型的位图。请添加标签，在我的代码中与您的图像，因为必须有一些元数据，以便在画廊中显示图像。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1128785|++++++String+resultPath+=+getExternalFilesDir(Environment.DIRECTORY_PICTURES)%2B+
++++++getString(R.string.directory)+%2B+System.currentTimeMillis()+%2B+".jpg";

+++++++new+File(resultPath).getParentFile().mkdir();

++++++++try+{
++++++++++++OutputStream+fileOutputStream+=+new+FileOutputStream(resultPath);
++++++++++++savedBitmap.compress(CompressFormat.JPEG,+100,+fileOutputStream);
++++++++++++fileOutputStream.flush();
++++++++++++fileOutputStream.close();
++++++++}+catch+(IOException+e2)+{
++++++++++++e2.printStackTrace();
++++++++}
++++++++savedBitmap.recycle();

++++++++File+file+=+new+File(resultPath);
++++++++ContentValues+values+=+new+ContentValues();
++++++++values.put(MediaStore.Images.Media.TITLE,+"Photo");
++++++++values.put(MediaStore.Images.Media.DESCRIPTION,+"Edited");
++++++++values.put(MediaStore.Images.Media.MIME_TYPE,+"image/jpeg");
++++++++values.put(MediaStore.Images.Media.DATE_TAKEN,+System.currentTimeMillis+());
++++++++values.put(MediaStore.Images.Media.DATE_ADDED,+System.currentTimeMillis());
++++++++values.put(MediaStore.Images.ImageColumns.BUCKET_ID,+file.toString().toLowerCase(Locale.US).hashCode());
++++++++values.put(MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME,+file.getName().toLowerCase(Locale.US));
++++++++values.put("_data",+resultPath);

++++++++ContentResolver+cr+=+getContentResolver();
++++++++cr.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,+values);




++++++++return++resultPath;|code-block|syntax|javascript|1128786|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This will aslo solve your problem if your image in gallery are not showing instead they might showing a 404 type bitmap in midle.
please add a the tags that are in my code with your image because there must some meta data in order to show image in gallery.

<pre><code> String resultPath = getExternalFilesDir(Environment.DIRECTORY_PICTURES)+ 
 getString(R.string.directory) + System.currentTimeMillis() + ".jpg";

 new File(resultPath).getParentFile().mkdir();

 try {
 OutputStream fileOutputStream = new FileOutputStream(resultPath);
 savedBitmap.compress(CompressFormat.JPEG, 100, fileOutputStream);
 fileOutputStream.flush();
 fileOutputStream.close();
 } catch (IOException e2) {
 e2.printStackTrace();
 }
 savedBitmap.recycle();

 File file = new File(resultPath);
 ContentValues values = new ContentValues();
 values.put(MediaStore.Images.Media.TITLE, "Photo");
 values.put(MediaStore.Images.Media.DESCRIPTION, "Edited");
 values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
 values.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis ());
 values.put(MediaStore.Images.Media.DATE_ADDED, System.currentTimeMillis());
 values.put(MediaStore.Images.ImageColumns.BUCKET_ID, file.toString().toLowerCase(Locale.US).hashCode());
 values.put(MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME, file.getName().toLowerCase(Locale.US));
 values.put("_data", resultPath);

 ContentResolver cr = getContentResolver();
 cr.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);




 return resultPath;
</code></pre>

I save an image to the sdcard and it doesn't appear in the Gallery application until I pull off the sdcard and return it back.

Do you have any idea why is it so?

Seems like the Gallery application has some cache that isn't updated on file save...

Actually, I also want to open the just-saved image in Gallery application and have no success with that <a href="https://stackoverflow.com/questions/2169649/open-an-image-in-androids-built-in-gallery-app-programmatically">this</a> is my question about this issue.

Image, saved to sdcard, doesn't appear in Android's Gallery app

我将一张图像保存到SD卡中，直到我取下SD卡并将其放回时，它才会出现在Gallery应用程序中。你知道为什么会这样吗？似乎Gallery应用程序有一些在文件保存时不更新的缓存...实际上，我也想在Gallery应用程序中打开刚刚保存的图像，但没有成功关于这个问题，我的问题是。

问保存到SD卡的图片不会出现在Android的Gallery应用程序中
EN

回答 14

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问保存到SD卡的图片不会出现在Android的Gallery应用程序中EN

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问保存到SD卡的图片不会出现在Android的Gallery应用程序中
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