Android通过第三方软件打开Word、Excel、PPT、PDF等文档 |
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近期公司有个需求，PDF格式需要在应用内打开浏览，Word、Excel要求不高直接用第三方软件打开即可，找了两种解决办法。 第一， 全部在应用内打开，可接入腾讯的TBS（没有做尝试），可参考链接接入TBS文章 第二，PDF可使用AndroidPdfViewer在应用内下载打开即可，Word、Excel下载后直接跳转至第三方软件打开 我选择了第二种办法，以后有空再尝试第一种解决办法吧。 以上两种办法都需要先下载文件再打开浏览，下载的解决方案这里就不描述了，网上很多，我使用的是廖子尧的第三方框架OkDownload，廖子尧GitHub可以学习一下，个人感觉还是挺好用的。 这里主要想记录下打开方式以及要注意的点： android 7.0 新增私有目录访问权限，Google 官方说明：为了提高私有文件的安全性，面向 Android 7.0 或更高版本的应用私有目录被限制访问 (0700)。此设置可防止私有文件的元数据泄漏。 所以这里在访问下载的文件存储路径时，也需要动态判断系统版本添加文件读取权限，使用FileProvider获取路径，否则会触发 FileUriExposedException异常 下面列举了三种打开文件类型的写法： private void openFileIntent(String path, String type) { if (!StringUtils.isNullOrWhiteSpace(path)) { Intent intent = new Intent("android.intent.action.VIEW"); intent.addCategory("android.intent.category.DEFAULT"); Uri uri; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { uri = FileProvider.getUriForFile(getActivity(), getApplicationContext().getPackageName() + ".provider", new File(path)); intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//给目标文件临时授权，必需添加 } else { uri = Uri.fromFile(new File(path)); } intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); try { if (StringUtils.isEqual(type, "doc")) { intent.setDataAndType(uri, "application/msword"); this.startActivity(intent); this.finish(); } else if (StringUtils.isEqual(type, "xls")) { intent.setDataAndType(uri, "application/vnd.ms-excel"); this.startActivity(intent); this.finish(); } else if (StringUtils.isEqual(type, "ppt")) { intent.setDataAndType(uri, "application/vnd.ms-powerpoint"); this.startActivity(intent); this.finish(); } } catch (Exception e) { MessageUtils.showCusToast(getActivity(), "没有找到打开该文件的应用程序"); finish(); } } }再记录下setDataAndType设置所对应的值： private final String[][] MIME_MapTable = { //{后缀名，MIME类型} {".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"}, {"", "*/*"} };
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