android添加图片到本地，无法即使刷新的解决方法

使用如下方法刷新

filePath - 图片完整路径

if(hasKitkat()){            MediaScannerConnection.scanFile(activity,            new String[] { outDir.getAbsolutePath() }, new String[]{ "image/*" },            new MediaScannerConnection.OnScanCompletedListener() {            public void onScanCompleted(String path, Uri uri) {            activity.sendBroadcast(new Intent(android.hardware.Camera.ACTION_NEW_PICTURE, uri));            activity.sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri));            }            });            scanPhotos(outFile.getAbsolutePath(), activity); // 实际起作用的方法            }else{            activity.sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));            }

public static void scanPhotos(String filePath, Context context) {        Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);        Uri uri = Uri.fromFile(new File(filePath));        intent.setData(uri);        context.sendBroadcast(intent);    }

public static boolean hasKitkat() {        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;    }

参考：

http://stackoverflow.com/questions/4646913/android-how-to-use-mediascannerconnection-scanfile/5814533#5814533

http://www.apkbus.com/android-124798-1-1.html

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