Uri.parse读取raw资源

本文介绍如何构建指向特定视频资源的URI,使用android.resource方案并结合应用包名及资源ID完成路径构造。

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// Construct a URI that points to the video resource that we want to play
Uri videoUri = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.vid_bigbuckbunny);

转载于:https://www.cnblogs.com/yongfengnice/p/9177706.html

<template> <view class="content"> <button @click="selectFile()">打开安卓文件管理器</button> <view> <text>单选URL</text> {{ filePath }} </view> <view><text>多选</text></view> <view v-for="(item, index) in fileList">{{ item }}</view> </view> </template> <script> export default { data() { return { filePath: '', fileList: [] }; }, onLoad() {}, methods: { selectFile() { let that = this; let main = plus.android.runtimeMainActivity(); let Intent = plus.android.importClass('android.content.Intent'); let intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType('*/*'); intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true); //关键!多选参数 intent.addCategory(Intent.CATEGORY_OPENABLE); main.startActivityForResult(intent, 200); // 获取回调 main.onActivityResult = function(requestCode, resultCode, data) { let Activity = plus.android.importClass('android.app.Activity'); let ContentUris = plus.android.importClass('android.content.ContentUris'); let Cursor = plus.android.importClass('android.database.Cursor'); let Uri = plus.android.importClass('android.net.Uri'); let Build = plus.android.importClass('android.os.Build'); let Environment = plus.android.importClass('android.os.Environment'); let DocumentsContract = plus.android.importClass('android.provider.DocumentsContract'); // 给系统导入 contentResolver let contentResolver = main.getContentResolver(); plus.android.importClass(contentResolver); // 返回路径 let path = ''; if (resultCode == Activity.RESULT_OK) { if (data.getData() != null) { let uri = data.getData(); //this 当前mainClass实例 path = getPath(this, uri); that.filePath = path; } else { try { let ClipData = plus.android.importClass('android.content.ClipData'); let clipData = new ClipData(); clipData = data.getClipData(); if (clipData != null) { for (let i = 0; i < clipData.getItemCount(); i++) { let item = clipData.getItemAt(i); let uri = item.getUri(); let url = getPath(this, uri); that.fileList.push(url); } } } catch (e) { console.log(e); } } console.log(path); } else { console.log(path); } function getPath(context, uri) { try { let isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider //一些三方的文件浏览器会进入到这个方法中,例如ES //QQ文件管理器不在此列 if (isExternalStorageDocument(uri)) { let docId = DocumentsContract.getDocumentId(uri); let split = docId.split(':'); let type = split[0]; // 如果是手机内部存储 if ('primary' == type.toLowerCase()) { return Environment.getExternalStorageDirectory() + '/' + split[1]; } else { return '/storage/' + type + '/' + split[1]; } } // DownloadsProvider else if (isDownloadsDocument(uri)) { let id = DocumentsContract.getDocumentId(uri); if (id.indexOf('raw:') > -1) { id = id.replace('raw:', ''); } // 不同系统获取的id开头可能不一样,在这后面便是真实的地址 if (id.substring(0, 5) == 'msf:') { return id.substring(5, id.length); } let contentUri = ContentUris.withAppendedId(Uri.parse('content://downloads/public_downloads'), ContentUris.parseId(uri)); return getDataColumn(context, contentUri, null, null); } // MediaProvider else if (isMediaDocument(uri)) { let MediaStore = plus.android.importClass('android.provider.MediaStore'); let docId = DocumentsContract.getDocumentId(uri); let split = docId.split(':'); let type = split[0]; let contentUri = null; if ('image' == type.toLowerCase()) { contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } else if ('video' == type.toLowerCase()) { contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; } else if ('audio' == type.toLowerCase()) { contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; } let selection = '_id=?'; let selectionArgs = [split[1]]; return getDataColumn(context, contentUri, selection, selectionArgs); } } // MediaStore (and general) else if ('content' == uri.getScheme().toLowerCase()) { if (isGooglePhotosUri(uri)) { return uri.getLastPathSegment(); } else if (isQQMediaDocument(uri)) { let paths = uri.getPath(); let Environment = plus.android.importClass('android.os.Environment'); let fileDir = Environment.getExternalStorageDirectory(); let files = plus.android.importClass('java.io.File'); let file = new files(fileDir, paths.substring('/QQBrowser'.length, paths.length)); return file.getPath(); } return getDataColumn(context, uri, null, null); } // File else if ('file' == uri.getScheme().toLowerCase()) { return uri.getPath(); } return null; } catch (e) { console.log(e); return null; } } // 通过uri 查找出绝对路径 function getDataColumn(context, uri, selection, selectionArgs) { try { let MediaStore = plus.android.importClass('android.provider.MediaStore'); let cursor = null; let column = MediaStore.MediaColumns.DATA; let projection = [column]; cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); if (cursor != null && cursor.moveToFirst()) { let column_index = cursor.getColumnIndexOrThrow(column); return cursor.getString(column_index); } } catch (e) { console.log(e); return null; } } function isExternalStorageDocument(uri) { return 'com.android.externalstorage.documents' == uri.getAuthority() ? true : false; } function isDownloadsDocument(uri) { return 'com.android.providers.downloads.documents' == uri.getAuthority() ? true : false; } function isMediaDocument(uri) { return 'com.android.providers.media.documents' == uri.getAuthority() ? true : false; } /** * 使用第三方qq文件管理器打开 * * @param uri * @return */ function isQQMediaDocument(uri) { return 'com.tencent.mtt.fileprovider' == uri.getAuthority() ? true : false; } /** * @param uri The Uri to check. * @return Whether the Uri authority is Google Photos. */ function isGooglePhotosUri(uri) { return 'com.google.android.apps.photos.content' == uri.getAuthority() ? true : false; } }; } } }; </script> <style></style> 我现在需要读取选择的.bin文件,并且读到里边的内容和文件的大小,并可以将文件里边的二进制文件打印出来,手机app实现,请参考以下两个路径下中的方法进行更改https://www.html5plus.org/doc/zh_cn/io.html文件和https://www.html5plus.org/doc/zh_cn/android.html文件
05-14
<template> <view class="content"> <button @click="selectFile()">打开安卓文件管理器</button> <view> <text>单选URL</text> {{ filePath }} </view> <view><text>多选</text></view> <view v-for="(item, index) in fileList">{{ item }}</view> </view> </template> <script> export default { data() { return { filePath: '', fileList: [] }; }, onLoad() {}, methods: { selectFile() { let that = this; let main = plus.android.runtimeMainActivity(); let Intent = plus.android.importClass('android.content.Intent'); let intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType('*/*'); intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true); //关键!多选参数 intent.addCategory(Intent.CATEGORY_OPENABLE); main.startActivityForResult(intent, 200); // 获取回调 main.onActivityResult = function(requestCode, resultCode, data) { let Activity = plus.android.importClass('android.app.Activity'); let ContentUris = plus.android.importClass('android.content.ContentUris'); let Cursor = plus.android.importClass('android.database.Cursor'); let Uri = plus.android.importClass('android.net.Uri'); let Build = plus.android.importClass('android.os.Build'); let Environment = plus.android.importClass('android.os.Environment'); let DocumentsContract = plus.android.importClass('android.provider.DocumentsContract'); // 给系统导入 contentResolver let contentResolver = main.getContentResolver(); plus.android.importClass(contentResolver); // 返回路径 let path = ''; if (resultCode == Activity.RESULT_OK) { if (data.getData() != null) { let uri = data.getData(); //this 当前mainClass实例 path = getPath(this, uri); that.filePath = path; } else { try { let ClipData = plus.android.importClass('android.content.ClipData'); let clipData = new ClipData(); clipData = data.getClipData(); if (clipData != null) { for (let i = 0; i < clipData.getItemCount(); i++) { let item = clipData.getItemAt(i); let uri = item.getUri(); let url = getPath(this, uri); that.fileList.push(url); } } } catch (e) { console.log(e); } } console.log(path); } else { console.log(path); } function getPath(context, uri) { try { let isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider //一些三方的文件浏览器会进入到这个方法中,例如ES //QQ文件管理器不在此列 if (isExternalStorageDocument(uri)) { let docId = DocumentsContract.getDocumentId(uri); let split = docId.split(':'); let type = split[0]; // 如果是手机内部存储 if ('primary' == type.toLowerCase()) { return Environment.getExternalStorageDirectory() + '/' + split[1]; } else { return '/storage/' + type + '/' + split[1]; } } // DownloadsProvider else if (isDownloadsDocument(uri)) { let id = DocumentsContract.getDocumentId(uri); if (id.indexOf('raw:') > -1) { id = id.replace('raw:', ''); } // 不同系统获取的id开头可能不一样,在这后面便是真实的地址 if (id.substring(0, 5) == 'msf:') { return id.substring(5, id.length); } let contentUri = ContentUris.withAppendedId(Uri.parse( 'content://downloads/public_downloads'), ContentUris.parseId(uri)); return getDataColumn(context, contentUri, null, null); } // MediaProvider else if (isMediaDocument(uri)) { let MediaStore = plus.android.importClass('android.provider.MediaStore'); let docId = DocumentsContract.getDocumentId(uri); let split = docId.split(':'); let type = split[0]; let contentUri = null; if ('image' == type.toLowerCase()) { contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } else if ('video' == type.toLowerCase()) { contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; } else if ('audio' == type.toLowerCase()) { contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; } let selection = '_id=?'; let selectionArgs = [split[1]]; return getDataColumn(context, contentUri, selection, selectionArgs); } } // MediaStore (and general) else if ('content' == uri.getScheme().toLowerCase()) { if (isGooglePhotosUri(uri)) { return uri.getLastPathSegment(); } else if (isQQMediaDocument(uri)) { let paths = uri.getPath(); let Environment = plus.android.importClass('android.os.Environment'); let fileDir = Environment.getExternalStorageDirectory(); let files = plus.android.importClass('java.io.File'); let file = new files(fileDir, paths.substring('/QQBrowser'.length, paths.length)); return file.getPath(); } return getDataColumn(context, uri, null, null); } // File else if ('file' == uri.getScheme().toLowerCase()) { return uri.getPath(); } return null; } catch (e) { console.log(e); return null; } } // 通过uri 查找出绝对路径 function getDataColumn(context, uri, selection, selectionArgs) { try { let MediaStore = plus.android.importClass('android.provider.MediaStore'); let cursor = null; let column = MediaStore.MediaColumns.DATA; let projection = [column]; cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); if (cursor != null && cursor.moveToFirst()) { let column_index = cursor.getColumnIndexOrThrow(column); return cursor.getString(column_index); } } catch (e) { console.log(e); return null; } } function isExternalStorageDocument(uri) { return 'com.android.externalstorage.documents' == uri.getAuthority() ? true : false; } function isDownloadsDocument(uri) { return 'com.android.providers.downloads.documents' == uri.getAuthority() ? true : false; } function isMediaDocument(uri) { return 'com.android.providers.media.documents' == uri.getAuthority() ? true : false; } /** * 使用第三方qq文件管理器打开 * * @param uri * @return */ function isQQMediaDocument(uri) { return 'com.tencent.mtt.fileprovider' == uri.getAuthority() ? true : false; } /** * @param uri The Uri to check. * @return Whether the Uri authority is Google Photos. */ function isGooglePhotosUri(uri) { return 'com.google.android.apps.photos.content' == uri.getAuthority() ? true : false; } }; } } }; </script> <style></style> 只能获取到路径,但是获取部到文件的内容和文件的大小,请参考以下两个路径下的方法进行更改https://www.html5plus.org/doc/zh_cn/io.html文件和https://www.html5plus.org/doc/zh_cn/android.html文件进行实现
最新发布
05-14
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