android调用自带文件选择器获取指定文件，编写解析Uri获取文件绝对路径

标题有点长，不多说

Intent intent=new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("text/plain");
intent.addCategory(Intent.CATEGORY_OPENABLE);
startActivityForResult(intent,REC_REQUESTCODE);

其中“text/plain”是文件的后缀名所对应的MIME类型

当指定两种或两种以上指定文件类型格式是：

//intent.setType("video/*;image/*");//同时选择视频和图片

随手贴上常用的MIME类型

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

因为 managedQuery(uri, new String[]{“*”}, null, null, null);方法过时等等等原因，我决定自己解析Uri，在onActivityResult()进行解析操作

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode ==Activity.RESULT_OK&&requestCode==REC_REQUESTCODE){
Uri uri = data.getData();//得到uri，后面就是将uri转化成file的过程。
String string =uri.toString();
File file;
String a[]=new String[2];
//判断文件是否在sd卡中
if (string.indexOf(String.valueOf(Environment.getExternalStorageDirectory()))!=-1){
//对Uri进行切割
a = string.split(String.valueOf(Environment.getExternalStorageDirectory()));
//获取到file
file = new File(Environment.getExternalStorageDirectory(),a[1]);
}else if(string.indexOf(String.valueOf(Environment.getDataDirectory()))!=-1){ //判断文件是否在手机内存中
//对Uri进行切割
a =string.split(String.valueOf(Environment.getDataDirectory()));
//获取到file
file = new File(Environment.getDataDirectory(),a[1]);
}else{
//出现其他没有考虑到的情况
MyToast.makeshow(this,"文件路径解析失败！",Toast.LENGTH_SHORT);
return;
}
i(TAG, "onActivityResult" + file.getAbsolutePath());
}
}

好到。到此位置获取到了文件绝对路径，接下来的对文件的操作就自行发挥了。

我的博客网站：http://huyuxin.top/欢迎大家访问！评论！