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我有一个用于我的列表视图的自定义适配器，它填充了我放入数据的自定义 rowItem 类的 ArrayList。

rowItem.getImage()将返回此字节数组：我已将长字符串放在此byte[]变量中getBytes()

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现在我有这个代码：

    byte[] imageData = rowItem.getImage();
    Drawable logoDrawable = null;
    if (imageData != null) {
        Bitmap logoBitmap = BitmapFactory.decodeByteArray(imageData, 0,
                imageData.length);
        logoDrawable = new BitmapDrawable(context.getResources(), logoBitmap);
    }
    holder.imageView.setImageDrawable(logoDrawable);

但它不会显示图像，如果我从可绘制地图中设置图像，它将显示出来，以便重新调整图像视图。

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2 回答 2

1

数据看起来像 base64 编码的二进制数据。Base64.decode()它首先将解码后的数据传递给BitmapFactory.

于 2013-10-02T09:35:43.053 回答
1

您显示的不是字节数组 - 它是文本，看起来非常像 base64 数据。

您应该首先尝试将其从 base64 解码为“原始”字节：

byte[] imageData = Base64.decode(rowItem.getImage(), Base64.DEFAULT);

...或修复您rowItem从哪里来为您执行 base64 解码。

于 2013-10-02T09:35:47.677 回答