安卓开发 好用的第三方文件、文件夹选择器框架

android {
buildscript {
        repositories {
            maven { url 'https://jitpack.io' }
        }
    }
    allprojects {
        repositories {
            maven { url 'https://jitpack.io' }
        }
    }
}
dependencies{
//实现Android 文件、文件夹选择器，支持多选
implementation 'com.github.ns3chz:Picker:1.0.2'
// 权限请求框架：https://github.com/getActivity/XXPermissions
implementation 'com.github.getActivity:XXPermissions:12.3'
}

权限检查

//检测权限
XXPermissions.with(this)
    .permission(Permission.MANAGE_EXTERNAL_STORAGE)
    .request { permissions, _ ->
        Toast.makeText(
            this@MainActivity,
            permissions.toString(),
            Toast.LENGTH_SHORT
        ).show()
    }

//路径
binding.buttonPath.setOnClickListener {
    FilePicker
        .build(this, 1)
        //设置初始打开的目录，默认为sdcard
        .setOpenFile(File("sdcard/DCIM/"))
        //设置选择文件还是文件夹，默认为文件
        .setPickFileType(FilePickerUiParams.PickType.FOLDER)
        //设置为单选，setMultiPick为设置多选，不可设置多选文件夹
        .setSinglePick(object : FilePicker.OnSinglePickListener() {
            override fun pick(file: File) {
                path.value = file.absolutePath
                val edit = sharedPreferences.edit()
                edit.putString(getString(R.string.sp_image_path), path.value)
                edit.apply()
            }

        })
        //打开选择界面
        .open()
}

添加回调

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    //会自动去集合中找到对应的组件、请求码做返回
    FilePicker.onActivityResult(this, requestCode, resultCode, data)
}