如何将字符串转换为图像 - Android Studio

Question

我有以下文本，是从我们公司的供应商处以字符串形式获得的。我需要使用 android studio 将其显示为图像。请任何人指导。提前致谢。

"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"

Answer 1

我解决了我需要的问题。如果对某人有帮助，请编写以下代码，谢谢。

   Bitmap bm = StringToBitMap(GetString);
   MyPhoto.setImageBitmap(bm);   //MyPhoto is image control.
}

public Bitmap StringToBitMap(String encodedString) {
    try {
        byte[] encodeByte = Base64.decode(encodedString, Base64.DEFAULT);
        Bitmap bitmap = BitmapFactory.decodeByteArray(encodeByte, 0, encodeByte.length);
        return bitmap;
    } catch (Exception e) {
        e.getMessage();
        return null;
    }
}

Answer 2

假设您将图像以字符串形式存储在 Arraylist 或数据库中 R.drawable.bucket。

然后您可以使用以下方法从字符串中检索图像：

Field declaredField;
declaredField = R.drawable.class.getDeclaredField( mTrafficSignalList.get(i)
    .getImagePath()
    .split("\.")[2]);
MyViewHolder.image_traffic_sign_textview.setImageResource(declaredField.getInt(declaredField));

如何将字符串转换为图像 - Android Studio

How To Convert String Into Image - Android Studio

base64

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