/**     * Glide 加載圖片保存到本地     *     * imgUrl 圖片地址     * imgName 圖片名稱     */    Glide.with(context).load(imgUrl).asBitmap().toBytes().into(new SimpleTarget<byte[]>() {      @Override      public void onResourceReady(byte[] bytes, GlideAnimation<? super byte[]> glideAnimation) {        try {          savaBitmap(imgName, bytes);        } catch (Exception e) {          e.printStackTrace();        }      }    });// 保存圖片到手機指定目錄  public void savaBitmap(String imgName, byte[] bytes) {    if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {      String filePath = null;      FileOutputStream fos = null;      try {        filePath = Environment.getExternalStorageDirectory().getCanonicalPath() + "/MyImg";        File imgDir = new File(filePath);        if (!imgDir.exists()) {          imgDir.mkdirs();        }        imgName = filePath + "/" + imgName;        fos = new FileOutputStream(imgName);        fos.write(bytes);        Toast.makeText(context, "圖片已保存到" + filePath, Toast.LENGTH_SHORT).show();      } catch (IOException e) {        e.printStackTrace();      } finally {        try {          if (fos != null) {            fos.close();          }        } catch (IOException e) {          e.printStackTrace();        }      }    } else {      Toast.makeText(context, "請檢查SD卡是否可用", Toast.LENGTH_SHORT).show();    }  }

Glide.with(context).load(imgUrl)        .listener(new RequestListener<String, GlideDrawable>() {          @Override          public boolean onException(Exception e, String model,                        Target<GlideDrawable> target,                        boolean isFirstResource) {            // 可替換成進度條            Toast.makeText(context, "圖片加載失敗", Toast.LENGTH_SHORT).show();            return false;          }          @Override          public boolean onResourceReady(GlideDrawable resource, String model,                          Target<GlideDrawable> target,                          boolean isFromMemoryCache,                          boolean isFirstResource) {            // 圖片加載完成，取消進度條            Toast.makeText(context, "圖片加載成功", Toast.LENGTH_SHORT).show();            return false;          }        }).error(R.mipmap.ic_launcher_round)        .diskCacheStrategy(DiskCacheStrategy.ALL)        .into(imageView);