Android调用系统应用打开各种类型文件

1.建立匹配表

//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"},
{"",        "*/*"}
};

2.根据路径打开文件

/**
* 根据路径打开文件
* @param context 上下文
* @param path 文件路径
*/
public static void openFileByPath(Context context,String path) {
if(context==null||path==null)
return;
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//设置intent的Action属性
intent.setAction(Intent.ACTION_VIEW);
//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 {
//设置intent的data和Type属性
intent.setDataAndType(Uri.fromFile(new File(path)), type);
//跳转
context.startActivity(intent);
} catch (Exception e) { //当系统没有携带文件打开软件，提示
ShowToastUtil.showToast(context,"无法打开该格式文件!");
e.printStackTrace();
}
}

3.结果

①当系统打不开该格式文件

②当系统应用可以打开文件