在带有端点的Android应用程序中显示Google数据存储Blob图像

在带有端点的Android应用程序中显示Google数据存储Blob图像,android,google-app-engine,google-cloud-datastore,google-cloud-endpoints,Android,Google App Engine,Google Cloud Datastore,Google Cloud Endpoints,我不确定我这样做是否正确,所以我想征求社区的意见。我的模型是这样制作的: @Entity public class Info { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Key key; private Blob logo; public Info(Blob logo) { super(); this.logo =

我不确定我这样做是否正确,所以我想征求社区的意见。我的模型是这样制作的:

@Entity
public class Info {
      @Id
      @GeneratedValue(strategy = GenerationType.IDENTITY)
      private Key key;
      private Blob logo;

      public Info(Blob logo) {
        super();
        this.logo = logo;
    }

    public byte[] getLogo() {
        if (logo == null) {
            return null;
        }

        return logo.getBytes();
    }

    public void setLogo(byte[] bytes) {
        this.logo = new Blob(bytes);
    }  
}
info.setProperty("logo", new Blob(imageInByte));
我将水滴图像设置为:

@Entity
public class Info {
      @Id
      @GeneratedValue(strategy = GenerationType.IDENTITY)
      private Key key;
      private Blob logo;

      public Info(Blob logo) {
        super();
        this.logo = logo;
    }

    public byte[] getLogo() {
        if (logo == null) {
            return null;
        }

        return logo.getBytes();
    }

    public void setLogo(byte[] bytes) {
        this.logo = new Blob(bytes);
    }  
}
info.setProperty("logo", new Blob(imageInByte));
在生成客户端端点库之后,我的blob映像被定义为String,这对我来说很奇怪。我的客户端上的信息对象有以下方法:

@com.google.api.client.util.Key
private java.lang.String logo;

/**
   * @see #decodeLogo()
   * @return value or {@code null} for none
   */
  public java.lang.String getLogo() {
    return logo;
  }

  /**

   * @see #getLogo()
   * @return Base64 decoded value or {@code null} for none
   *
   * @since 1.14
   */
  public byte[] decodeLogo() {
    return com.google.api.client.util.Base64.decodeBase64(logo);
  }

  /**
   * @see #encodeLogo()
  public Info setLogo(java.lang.String logo) {
    this.logo = logo;
    return this;
  }

  /**

   * @see #setLogo()
   *
   * <p>
   * The value is encoded Base64 or {@code null} for none.
   * </p>
   *
   * @since 1.14
   */
  public Info encodeLogo(byte[] logo) {
    this.logo = com.google.api.client.util.Base64.encodeBase64URLSafeString(logo);
    return this;
  }
但我在LogCat中收到以下错误:

I/System.out(26730): resolveUri failed on bad bitmap uri: android.graphics.Bitmap@40fba0e0

我做错了什么?感谢您的建议:)

字符串是字节数组的base64编码。但是base64编码器
com.google.api.client.util.base64.encodeBase64URLSafeString()
似乎给出了错误的结果

我使用了另一个base64编码器,如中所示,操作成功

//byte[] Data ;

StringBuffer out = new StringBuffer();
out.append(Base64Coder.encode(Data, 0, Data.length));
note.setData(out.toString());