使用Glide加载的图片保存到相册,保存gif到相册

项目中保存图片到相册这个功能很简单，但是如果有gif就相对难一些，需要判断是否是gif,本文将该功能做相应记录

String imagePath=null;
      Drawable drawable = mImageView.getDrawable();

//判断图片类型
      if (drawable instanceof GifDrawable){
          imagePath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/"+System.currentTimeMillis()+".gif";
      }else {
          imagePath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/"+System.currentTimeMillis()+".png";
      }
      /**
       * 拷贝到指定路径 保存图片和动态图
       */
      final String finalImagePath = imagePath;
      new Thread(new Runnable() {
         @Override
         public void run() {
            //java.lang.IllegalArgumentException: YOu must call this method on a background thread
            //必须在子线程中进行
            String path =   getImagePath(mImageUrl);
            copyFile(path, finalImagePath);
            System.out.println("保存地址；"+ finalImagePath);
            Intent intentBroadcast = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
            File file = new File(finalImagePath);
            intentBroadcast.setData(Uri.fromFile(file));
            activity.sendBroadcast(intentBroadcast);

         }
      }).start();

/**
 * Glide 获得图片缓存路径
 */
private String getImagePath(String imgUrl) {
   String path = null;
   FutureTarget<File> future = Glide.with(this)
         .load(imgUrl)
         .downloadOnly(Target.SIZE_ORIGINAL,Target.SIZE_ORIGINAL);
   try {
      File cacheFile = future.get();
      path = cacheFile.getAbsolutePath();
   } catch (InterruptedException | ExecutionException e) {
      e.printStackTrace();
   }
   return path;
}

public void copyFile(String oldPath, final String newPath) {
   try {
      int bytesum = 0;
      int byteread = 0;
      File oldfile = new File(oldPath);
      if (oldfile.exists()) { //文件存在时
         InputStream inStream = new FileInputStream(oldPath); //读入原文件
         FileOutputStream fs = new FileOutputStream(newPath);
         byte[] buffer = new byte[1444];
         int length;
         while ( (byteread = inStream.read(buffer)) != -1) {
            bytesum += byteread; //字节数 文件大小
            System.out.println(bytesum);
            fs.write(buffer, 0, byteread);
         }


         inStream.close();
      }
      new Handler(Looper.getMainLooper()).post(new Runnable() {
         @Override
         public void run() {
            ToastUtils.showShortToast(activity,"以保存至"+newPath);
         }
      });
   }
   catch (Exception e) {
      e.printStackTrace();

   }

}

别忘了添加权限

<uses-permission android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />