H5跟安卓APP 手机打开的效果图：

Vue页面：

<template><view class="content"><button @click="uploadFiles">点击上传</button></view>
</template><script>export default {data() {return {}},methods: {//h5、微信小程序、app上传文件uploadFiles() {//#ifdef H5uni.chooseFile({count: 1,extension: ['.doc,.xlsx,.docx'],success: res => {uni.showLoading({title: '导入中...',mask: true});uni.uploadFile({url: this.$BASE_URL + 'api/uploads/upload',file: res.tempFiles[0],name: 'file',success: (res) => {},});}});//#endif// #ifdef MP-WEIXINuni.chooseMessageFile({count: 1, //默认100success: res => {uni.showLoading({title: '导入中...',mask: true});uni.uploadFile({url: this.$BASE_URL + 'api/uploads/upload',filePath: res.tempFiles[0].path,name: 'file',success: (res) => {},});}});//#endif// #ifdef APP-VUE//在这里导入打开安卓app本地文件选择器的封装方法this.$common.androidChooseFile(res => {var tempFiles = res;uni.uploadFile({url: this.$BASE_URL + 'api/uploads/upload',filePath: tempFiles,name: 'file',success: (res) => {}});},'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')// #endif},},}
</script><style scoped></style>

封装的公共方法库utils/common.js: 

var common = {}
//安卓本地文件选择器
common.androidChooseFile = (callback, acceptType) => {var CODE_REQUEST = 1000;var main = plus.android.runtimeMainActivity();if (plus.os.name == 'Android') {var Intent = plus.android.importClass('android.content.Intent');var intent = new Intent(Intent.ACTION_GET_CONTENT);intent.addCategory(Intent.CATEGORY_OPENABLE);if (acceptType) {intent.setType(acceptType);} else {intent.setType("*/*");}main.onActivityResult = (requestCode, resultCode, data) => {if (requestCode == CODE_REQUEST) {const uri = data.getData();plus.android.importClass(uri);const Build = plus.android.importClass('android.os.Build');const isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;const DocumentsContract = plus.android.importClass('android.provider.DocumentsContract');if (isKitKat && DocumentsContract.isDocumentUri(main, uri)) {if ("com.android.externalstorage.documents" == uri.getAuthority()) {console.log("6666");var docId = DocumentsContract.getDocumentId(uri);var split = docId.split(":");var type = split[0];if ("primary" == type) {var Environment = plus.android.importClass('android.os.Environment');callback(Environment.getExternalStorageDirectory() + "/" + split[1]);} else {var System = plus.android.importClass('java.lang.System');var sdPath = System.getenv("SECONDARY_STORAGE");if (sdPath) {callback(sdPath + "/" + split[1]);}}} else if ("com.android.providers.downloads.documents" == uri.getAuthority()) {var id = DocumentsContract.getDocumentId(uri);var ContentUris = plus.android.importClass('android.content.ContentUris');var contentUri = ContentUris.withAppendedId(//    Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));Uri.parse("content://downloads/public_downloads"), id);callback(getDataColumn(main, contentUri, null, null));} else if ("com.android.providers.media.documents" == uri.getAuthority()) {var docId = DocumentsContract.getDocumentId(uri);var split = docId.split(":");console.log(split);var type = split[0];console.log(type);var MediaStore = plus.android.importClass('android.provider.MediaStore');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;} else {contentUri = MediaStore.Files.getContentUri("external");}console.log(contentUri);var selection = "_id=?";var selectionArgs = new Array();selectionArgs[0] = split[1];callback(getDataColumn(main, contentUri, selection, selectionArgs));}} else if ("content" == uri.getScheme()) {callback(getDataColumn(main, uri, null, null));} else if ("file" == uri.getScheme()) {callback(uri.getPath());}}}main.startActivityForResult(intent, CODE_REQUEST);}function getDataColumn(main, uri, selection, selectionArgs) {plus.android.importClass(main.getContentResolver());let cursor = main.getContentResolver().query(uri, ['_data'], selection, selectionArgs,null);plus.android.importClass(cursor);if (cursor != null && cursor.moveToFirst()) {var column_index = cursor.getColumnIndexOrThrow('_data');var result = cursor.getString(column_index)cursor.close();return result;}return null;}
}
export default common