doc 文件需要在文件名中显示 doc 徽标，如 whatsapp

Question

我尝试在我的聊天应用程序（如 whatsapp）中与其他人共享文档文件。这里我想在文件名附近显示文件类型标志我们是什么类型的文件 shared.if 它是 pdf 文件 pdf 标志，如果是 doc 文件需要在文件名附近显示 doc 标志。我怎样才能动态地做。有任何默认模块

Answer 1

我遇到过这个问题，这是我的解决方法：

从文件 URI 检测 MIME 类型

public static String getMimeType(Context context, Uri uri) {
        String mimeType;
        if (uri.getScheme().equals(ContentResolver.SCHEME_CONTENT)) {
            ContentResolver cr = context.getApplicationContext().getContentResolver();
            mimeType = cr.getType(uri);
        } else {
            String fileExtension = MimeTypeMap.getFileExtensionFromUrl(uri
                    .toString());
            mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(
                    fileExtension.toLowerCase());
        }
        return mimeType;
}

在您的应用中定义支持的 MIME 类型

public final class MIMEType {
    public static final String IMAGE = "image/*";
    public static final String TEXT_PLAIN = "text/plain";
    public static final String APPLICATION_PDF = "application/pdf";
    public static final String APPLICATION_FLASH = "application/x-shockwave-flash";
    public static final String APPLICATION_OCTET_STREAM = "application/octet-stream";
    public static final String APPLICATION_DOC = "application/msword";
    public static final String APPLICATION_DOCX = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
    public static final String APPLICATION_XLS = "application/vnd.ms-excel";
    public static final String APPLICATION_XLSX = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
    public static final String APPLICATION_PPT = "application/vnd.ms-powerpoint";
    public static final String APPLICATION_PPTX = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
}

写一个方法从MIME类型中获取图标（标志）资源

private int getIconResourceBasedOnMimeType(String mimeType) {
    switch (mimeType) {
        case MIMEType.TEXT_PLAIN:
            return R.drawable.ic_text_blue;
        case MIMEType.APPLICATION_PDF:
            return R.drawable.ic_pdf_blue;
        case MIMEType.APPLICATION_FLASH:
            return R.drawable.ic_swf_blue;
        case MIMEType.APPLICATION_DOC:
        case MIMEType.APPLICATION_DOCX:
            return R.drawable.ic_word_blue;
        case MIMEType.APPLICATION_XLS:
        case MIMEType.APPLICATION_XLSX:
            return R.drawable.ic_excel_blue;
        case MIMEType.APPLICATION_PPT:
        case MIMEType.APPLICATION_PPTX:
            return R.drawable.ic_pp_blue;
        case MIMEType.APPLICATION_OCTET_STREAM:
        default:
            return R.drawable.ic_binary_blue;
    }
}

希望对您有所帮助！

doc 文件需要在文件名中显示 doc 徽标，如 whatsapp

doc file need to display doc logo near file name like whatsapp

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