Android调用WPS第三方App打开PDF文档，一直停留在首页，提示正在加载文档类型

小灰灰 2022-04-15 00:16 853阅读 0赞

Android 7.0 以后对Uri的访问进行了限制，需要在manifest项目清单文件里面添加 provider，具体怎么写这个就不说了。

解决此问题只需添加以下代码即可：

intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

意思就是在程序中动态的grant URI权限给Action接收者。

/**
         * 获取打开文档意图
         *
         * @param file
         * @return
         */
        public static Intent getFileIntent(Activity activity, File file) {
            Uri uri = Uri.fromFile(file);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                //通过FileProvider创建一个content类型的Uri
                uri = FileProvider.getUriForFile(activity, "com.ss.fileprovider", file);
            }
            String type = getMIMEType(file);
            //优先使用WPS打开
            //检测是否安装了wps软件，没有安装选择默认打开, 动态的grant URI权限
            Intent intent = new Intent();
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            intent.setAction(android.content.Intent.ACTION_VIEW);
            intent.setDataAndType(uri, type);
            if (SystemUtil.isInstall(activity, "cn.wps.moffice_eng")) {
                intent.setClassName("cn.wps.moffice_eng",
                        "cn.wps.moffice.documentmanager.PreStartActivity2");
                //intent.setData(uri);
            } else {
                intent.addCategory("android.intent.category.DEFAULT");
            }
            return intent;
        }

参考代码：

//建立一个文件类型与文件后缀名的匹配表
        private static final String[][] MATCH_ARRAY={
                //{后缀名，    文件类型}
                {".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"},
                {".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"},
                {".prop",    "text/plain"},
                {".rar",    "application/x-rar-compressed"},
                {".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/zip"},
                {"",        "*/*"}
        };
    
        /**
         * 根据路径打开文件
         * @param context 上下文
         * @param path 文件路径
         */
        private static void openFileByPath(Context context,String path) {
            if(context==null||path==null)
                return;
            Intent intent = new Intent();
            //设置intent的Action属性
            intent.setAction(Intent.ACTION_VIEW);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    
            //文件的类型
            String type = "";
            for(int i =0;i<MATCH_ARRAY.length;i++){
                //判断文件的格式
                if(path.toString().contains(MATCH_ARRAY[i][0].toString())){
                    type = MATCH_ARRAY[i][1];
                    break;
                }
            }
            try {
                File out = new File(path);
                Uri fileURI;
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                    fileURI = FileProvider.getUriForFile(context,
                            "com.lonelypluto.test.provider",
                            out);
                }else{
                    fileURI = Uri.fromFile(out);
                }
                //设置intent的data和Type属性
                intent.setDataAndType(fileURI, type);
                //跳转
                context.startActivity(intent);
            } catch (Exception e) { //当系统没有携带文件打开软件，提示
                Toast.makeText(this,"无法打开该格式文件",Toast.LENGTH_SHORT).show();
                e.printStackTrace();
            }
        }

完！！！