uniapp安卓plus原生选择系统文件

uniapp安卓plus原生选择系统文件

效果：


组件代码：

<template xlang="wxml" minapp="mpvue">
<view>
</view>
</template>
<script>
export default {
name: 'file-manager',
props: {

},
data() {
return {
isAppPlus: process.env.UNI_PLATFORM === 'app-plus',
}
},
methods: {
_openFile(count, callback) {

if (this.isAppPlus) {
if (plus.os.name.toLowerCase() != 'android') {
uni.showModal({
title: '提示',
content: '仅支持Android平台',
success: function(res) {}
});
return false
}
let that = this
// java 代码来自 
let main = plus.android.runtimeMainActivity()
let Intent = plus.android.importClass('android.content.Intent')
// 
let fileIntent = new Intent(Intent.ACTION_GET_CONTENT)
//fileIntent.setType(“image/*”);//选择图片
//fileIntent.setType(“audio/*”); //选择音频
//fileIntent.setType(“video/*”); //选择视频 （mp4 3gp 是android支持的视频格式）
//fileIntent.setType(“video/*;image/*”);//同时选择视频和图片
fileIntent.setType('*/*'); //无类型限制
fileIntent.addCategory(Intent.CATEGORY_OPENABLE);
fileIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
main.startActivityForResult(fileIntent, count || 1);
// 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 ClipData = plus.android.importClass("android.content.ClipData");
let Environment = plus.android.importClass("android.os.Environment");
let DocumentsContract = plus.android.importClass("android.provider.DocumentsContract");
let MediaStore = plus.android.importClass("android.provider.MediaStore");
// 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()
if ("file" == uri.getScheme().toLowerCase()) { //使用第三方应用打开
path = uri.getPath();
// return;
}
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) { //4.4以后
path = getPath(this, uri);
} else { //4.4以下下系统调用方法
path = getRealPathFromURI(uri)
}
// 回调
callback && callback([path])
} else {
let clipData = data.getClipData();
if (clipData != null) {
let paths = []
for (let i = 0; i < clipData.getItemCount(); i++) {
let item = clipData.getItemAt(i);
let uri = item.getUri();
if ("file" == uri.getScheme().toLowerCase()) { //使用第三方应用打开
paths.push(uri.getPath())
return;
}
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) { //4.4以后
paths.push(getPath(this, uri))
} else { //4.4以下下系统调用方法
paths.push(getRealPathFromURI(uri))
}
}
callback && callback(paths)
}
}
that.$emit('result', path)
}
// 4.4 以上 从Uri 获取文件绝对路径
function getPath(context, uri) {
let isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
let scheme = uri.getScheme().toLowerCase()
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
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);
let split = id.split(":");
return split[1]
// console.log(id)
// let contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), id);
// return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
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" == scheme) {
return getDataColumn(context, uri, null, null);
}
// File
else if ("file" == scheme) {
return uri.getPath();
}
}
// 4.4 以下 获取 绝对路径
function getRealPathFromURI(uri) {
let res = null
let proj = [MediaStore.Images.Media.DATA]
let cursor = contentResolver.query(uri, proj, null, null, null);
if (null != cursor && cursor.moveToFirst()) {
;
let column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
res = cursor.getString(column_index);
cursor.close();
}
return res;
}
// 通过uri 查找出绝对路径
function getDataColumn(context, uri, selection, selectionArgs) {
let cursor = null;
let column = "_data";
let projection = [column];
// let contentResolver = context.getContentResolver()
// plus.android.importClass(contentResolver);
cursor = contentResolver.query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
let column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
}

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
}
}
} else {
uni.showModal({
title: '提示',
content: '仅支持Android平台',
success: function(res) {

}
})
}
}
}
}
</script>

使用：

// 使用示例这里只放了部分关键代码
<fileManager ref="fileManagerRef" @result="fileResult" />

import fileManager from '@/components/fileManager.vue';

components: {
nkSelectFile,
fileManager,
},

// 导入
importFileChooseFile() {
this.$refs.fileManagerRef._openFile(1, (path) => {
console.log('文件选择path:', path);
});
},

原文地址：https://blog.csdn.net/qq_61950936/article/details/140605040

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