关于android:Android从Uri获取视频图片的真实地址

Android因为各个版本的差别，加上对文件权限治理的一直降级，如何获取图片视频地址变得越来越简单，上面是一个工具类，能够方便快捷的获取图片视频的实在地址。

import android.content.ContentUrisimport android.content.Contextimport android.database.Cursorimport android.net.Uriimport android.os.Buildimport android.os.Environmentimport android.provider.DocumentsContractimport android.provider.MediaStoreclass URIPathHelper {    fun getPath(context: Context, uri: Uri): String? {        val isKitKatorAbove = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT        // DocumentProvider        if (isKitKatorAbove && DocumentsContract.isDocumentUri(context, uri)) {            // ExternalStorageProvider            if (isExternalStorageDocument(uri)) {                val docId = DocumentsContract.getDocumentId(uri)                val split = docId.split(":".toRegex()).toTypedArray()                val type = split[0]                if ("primary".equals(type, ignoreCase = true)) {                    return Environment.getExternalStorageDirectory().toString() + "/" + split[1]                }            } else if (isDownloadsDocument(uri)) {                val id = DocumentsContract.getDocumentId(uri)                val contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), java.lang.Long.valueOf(id))                return getDataColumn(context, contentUri, null, null)            } else if (isMediaDocument(uri)) {                val docId = DocumentsContract.getDocumentId(uri)                val split = docId.split(":".toRegex()).toTypedArray()                val type = split[0]                var contentUri: Uri? = null                if ("image" == type) {                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI                } else if ("video" == type) {                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI                } else if ("audio" == type) {                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI                }                val selection = "_id=?"                val selectionArgs = arrayOf(split[1])                return getDataColumn(context, contentUri, selection, selectionArgs)            }        } else if ("content".equals(uri.scheme, ignoreCase = true)) {            return getDataColumn(context, uri, null, null)        } else if ("file".equals(uri.scheme, ignoreCase = true)) {            return uri.path        }        return null    }    fun getDataColumn(context: Context, uri: Uri?, selection: String?, selectionArgs: Array<String>?): String? {        var cursor: Cursor? = null        val column = "_data"        val projection = arrayOf(column)        try {            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,null)            if (cursor != null && cursor.moveToFirst()) {                val column_index: Int = cursor.getColumnIndexOrThrow(column)                return cursor.getString(column_index)            }        } finally {            if (cursor != null) cursor.close()        }        return null    }    fun isExternalStorageDocument(uri: Uri): Boolean {        return "com.android.externalstorage.documents" == uri.authority    }    fun isDownloadsDocument(uri: Uri): Boolean {        return "com.android.providers.downloads.documents" == uri.authority    }    fun isMediaDocument(uri: Uri): Boolean {        return "com.android.providers.media.documents" == uri.authority    }}

目前在我的项目中应用失常，有异样能够在评论说进去