遍历目录中所有文件,遍历指定目录，获取当前目录下所有文件，并通过页面展示文件列表。

let path = getContext(this).filesDir

let fd1 = fileio.openSync(path + '/testFile_01', 0o102, 0o640); 
let fd2 = fileio.openSync(path + '/testFile_02', 0o102, 0o640); 
fileio.mkdirSync(path + '/testDir_01', 0o775) 
fileio.mkdirSync(path + '/testDir_02', 0o775)

let dir = fileio.opendirSync(path)

// 读取下一个目录项 
let dirent = dir.readSync() 
while (dirent) { 
let name = dirent.name 
this.pathList.push(name) 
dirent = dir.readSync() 
}

if (this.pathList.length > 0) { 
List() { 
ForEach(this.pathList, (path) => { 
ListItem() { 
Column() { 
Row() { 
Text(path) 
.fontSize(20) 
}.height(30) 
}.width("100%") 
} 
}) 
} 
}

import fileio from '@ohos.fileio'; 
import prompt from '@ohos.prompt'; 
  
  
@Entry 
@Component 
struct DirPage { 
@State message: string = 'Hello World' 
@State pathList: Array<string> = [] 
  
  
build() { 
Row() { 
Column({ space: 8 }) { 
Button(`创建文件`) 
.fontSize(30) 
.onClick(() => { 
let path = getContext(this).filesDir 
let fd1 = fileio.openSync(path + '/testFile_01', 0o102, 0o640); 
let fd2 = fileio.openSync(path + '/testFile_02', 0o102, 0o640); 
fileio.close(fd1) 
fileio.close(fd2) 
prompt.showToast({message:`创建文件成功`}) 
}) 
Button(`创建目录`) 
.fontSize(30) 
.onClick(() => { 
let path = getContext(this).filesDir 
fileio.mkdirSync(path + '/testDir_01', 0o775) 
fileio.mkdirSync(path + '/testDir_02', 0o775) 
prompt.showToast({message:`创建目录成功`}) 
}) 
Button(`获取所有文件`) 
.fontSize(30) 
.onClick(() => { 
let path = getContext(this).filesDir 
// 打开目录 
let dir = fileio.opendirSync(path) 
  
  
// 读取下一个目录项 
let dirent = dir.readSync() 
while (dirent) { 
let name = dirent.name 
  
  
this.pathList.push(name) 
dirent = dir.readSync() 
} 
dir.close() 
prompt.showToast({message:`获取所有文件成功`}) 
}) 
if (this.pathList.length > 0) { 
List() { 
ForEach(this.pathList, (path) => { 
ListItem() { 
Column() { 
Row() { 
Text(path) 
.fontSize(20) 
}.height(30) 
}.width("100%") 
} 
}) 
} 
} 
} 
.width('100%') 
} 
.height('100%') 
} 
}