版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/houjunkang363/article/details/76645546
在网上搜了很多答案,基本上都是复制粘贴,不是这里缺了,就是那里漏了。用了我提供的方法,如果不能保存成功,你来找我!!我写的方法解决了各种蛋疼的兼容性问题,只用传context和bitmap进来就OK了!
public static void saveImageToGallery(Context context, Bitmap bmp) { // 首先保存图片 File appDir = new File(Environment.getExternalStorageDirectory(), "QRCode"); if (!appDir.exists()) { appDir.mkdir(); } String fileName = System.currentTimeMillis() + ".jpg"; File file = new File(appDir, fileName); try { FileOutputStream fos = new FileOutputStream(file); bmp.compress(Bitmap.CompressFormat.JPEG, 100, fos); fos.flush(); fos.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } // 其次把文件插入到系统图库 try { MediaStore.Images.Media.insertImage(context.getContentResolver(), file.getAbsolutePath(), fileName, null); } catch (FileNotFoundException e) { e.printStackTrace(); } // 最后通知图库更新 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // 判断SDK版本是不是4.4或者高于4.4 String[] paths = new String[]{file.getAbsolutePath()}; MediaScannerConnection.scanFile(context, paths, null, null); } else { final Intent intent; if (file.isDirectory()) { intent = new Intent(Intent.ACTION_MEDIA_MOUNTED); intent.setClassName("com.android.providers.media", "com.android.providers.media.MediaScannerReceiver"); intent.setData(Uri.fromFile(Environment.getExternalStorageDirectory())); } else { intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); intent.setData(Uri.fromFile(file)); } context.sendBroadcast(intent); } }