如何使用 Glide 从本地存储加载图像

How to load image from local storage using Glide

我想从图片目录加载到 imageView 一张图片。使用此代码我总是会出错,但是文件存在。

这是一个非常原始的例子。更大的项目需要它,但我想让它尽可能简单。

build.gradle(模块 - 代码的唯一重要部分):

android {
    compileSdk 32

    defaultConfig {
        minSdk 28
        targetSdk 32
        versionCode 1

dependencies {
 implementation "com.github.bumptech.glide:glide:4.13.0"
}

glide 4.13.0应该是最新版本

AndroidActivity.xml(仅重要部分):

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

    <application
        android:requestLegacyExternalStorage="true"
        android:usesCleartextTraffic="true"

MainActivity.kt

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE), 999) // to get permission read from external storage
  
        val image1: ImageView = findViewById(R.id.imageView)
        val file = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString()).list()?.get(0)

        Glide.with(this)
            .asBitmap()
            .load(file)
            .into(image1)
}

当我调试我的代码时,我看到变量 file 存在并且它的名称是 IMG_20220317_085955.jpg

错误信息:

java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
     call GlideException#logRootCauses(String) for more detail
          Cause (1 of 1): class java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
I/Glide: Root cause (1 of 3)
    java.io.FileNotFoundException: /IMG_20220317_085955.jpg: open failed: ENOENT (No such file or directory)
        at libcore.io.IoBridge.open(IoBridge.java:492)

为了获得我使用的完整路径

 val file = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString() + "/" + Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).list()
            ?.get(0)
            .toString()

Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) 将生成路径 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).list()?.get(0) 获取第一张图像(如果存在)