Android發送郵件

Android調用系統（或第三方軟件）發送郵件

/**
     * 郵件發送
     * @param emailPaths 接收者郵箱
     * */
    fun sendEmail(emailPaths: Array<String>) {
        /**
         * 不帶附件帶地址
         * */
        /*val intentEmail = Intent(Intent.ACTION_SENDTO)
        val title = "不動產申請書"
        val emailContent = "pdf文件地址：${MyApplication.getSharedpreferences().getString("applicationBookDpfUrl","")}"
        intentEmail.data = Uri.parse("mailto:$emailpath")
        intentEmail.putExtra(Intent.EXTRA_SUBJECT, title)
        intentEmail.putExtra(Intent.EXTRA_TEXT, emailContent)
        startActivity(Intent.createChooser(intentEmail, "請選擇郵件發送軟件"))*/

        /**
         * 帶附件
         * */
        val intentEmail = Intent(Intent.ACTION_SEND)
        //郵件發送類型：帶附件(pdf)的郵件
        intentEmail.type = "application/pdf"
        /*
            {後綴名，MIME類型}
            {".3gp", "video/3gpp"},
            {".apk", "application/vnd.android.package-archive"},
            {".asf", "video/x-ms-asf"},
            {".avi", "video/x-msvideo"},
            {".bin", "application/octet-stream"},
            {".bmp", "image/bmp"},
            {".c", "text/plain"},
            {".class", "application/octet-stream"},
            {".conf", "text/plain"},
            {".cpp", "text/plain"},
            {".doc", "application/msword"},
            {".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
            {".xls", "application/vnd.ms-excel"},
            {".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
            {".exe", "application/octet-stream"},
            {".gif", "image/gif"},
            {".gtar", "application/x-gtar"},
            {".gz", "application/x-gzip"},
            {".h", "text/plain"},
            {".htm", "text/html"},
            {".html", "text/html"},
            {".jar", "application/java-archive"},
            {".java", "text/plain"},
            {".jpeg", "image/jpeg"},
            {".jpg", "image/jpeg"},
            {".js", "application/x-javascript"},
            {".log", "text/plain"},
            {".m3u", "audio/x-mpegurl"},
            {".m4a", "audio/mp4a-latm"},
            {".m4b", "audio/mp4a-latm"},
            {".m4p", "audio/mp4a-latm"},
            {".m4u", "video/vnd.mpegurl"},
            {".m4v", "video/x-m4v"},
            {".mov", "video/quicktime"},
            {".mp2", "audio/x-mpeg"},
            {".mp3", "audio/x-mpeg"},
            {".mp4", "video/mp4"},
            {".mpc", "application/vnd.mpohun.certificate"},
            {".mpe", "video/mpeg"},
            {".mpeg", "video/mpeg"},
            {".mpg", "video/mpeg"},
            {".mpg4", "video/mp4"},
            {".mpga", "audio/mpeg"},
            {".msg", "application/vnd.ms-outlook"},
            {".ogg", "audio/ogg"},
            {".pdf", "application/pdf"},
            {".png", "image/png"},
            {".pps", "application/vnd.ms-powerpoint"},
            {".ppt", "application/vnd.ms-powerpoint"},
            {".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
            {".prop", "text/plain"},
            {".rc", "text/plain"},
            {".rmvb", "audio/x-pn-realaudio"},
            {".rtf", "application/rtf"},
            {".sh", "text/plain"},
            {".tar", "application/x-tar"},
            {".tgz", "application/x-compressed"},
            {".txt", "text/plain"},
            {".wav", "audio/x-wav"},
            {".wma", "audio/x-ms-wma"},
            {".wmv", "audio/x-ms-wmv"},
            {".wps", "application/vnd.ms-works"},
            {".xml", "text/plain"},
            {".z", "application/x-compress"},
            {".zip", "application/x-zip-compressed"},
         */
        val title = "不動產申請書"
        val emailContent = "pdf文件："
        //前提文件存在 (本例path在之前已經創建過的)
        val path = SDCardUtils.getSDCardPathByEnvironment() + "/ConvenienceProperty/applicationBook.pdf"
        //收件人
        intentEmail.putExtra(Intent.EXTRA_EMAIL,emailPaths)
        //標題
        intentEmail.putExtra(Intent.EXTRA_SUBJECT, title)
        //主文內容
        intentEmail.putExtra(Intent.EXTRA_TEXT, emailContent)
        //7.0 URI 獲取
        val uri = if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
            Uri.fromFile(File(path))
        } else {
            FileProvider.getUriForFile(this, "${BuildConfig.APPLICATION_ID}.fileProvider", File(path))
        }
        intentEmail.putExtra(Intent.EXTRA_STREAM, uri)

        startActivity(Intent.createChooser(intentEmail, "請選擇郵件發送軟件"))

    }