getBitmap: FileNotFoundException: 文件:/storage/emulated/0/DCIM/camera/IMG_20191029_101624.jpg (没有这样的文件或目录) (Android)

Question

当我单击 gridview 图像并按下上传按钮将图像上传到 firebase 时，应用程序崩溃了。发生崩溃是因为在上传之前将文件转换为位图。我也已授予权限并允许该应用程序访问内存（读写）。

清单：

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

代码：

fun getBitmap(imgUrl: String): Bitmap?
{
    Log.d("check location", "Parameter: $imgUrl")
    val imageFile = File(imgUrl)
    Log.d("check lcoation", "File: ${imageFile.toString()}")
    var fis: FileInputStream? = null
    var bitmap: Bitmap? = null

    try
    {
        fis = FileInputStream(imageFile)
        bitmap = BitmapFactory.decodeStream(fis)
    }
    catch (e: FileNotFoundException)
    {
        Log.e(TAG, "getBitmap: FileNotFoundException: ${e.message}")
    }
    finally
    {
        try
        {
            fis!!.close()
        }
        catch (e: IOException)
        {
            Log.e(TAG, "getBitmap: FileNotFoundException: ${e.message}")
        }

    }

    return bitmap
}

日志：

2019-10-30 /com.example.__ D/check location: Parameter: file:///storage/emulated/0/DCIM/camera/IMG_20191029_101626.jpg
2019-10-30 /com.example.__ D/check lcoation: File: file:/storage/emulated/0/DCIM/camera/IMG_20191029_101626.jpg

错误：

E/ImageManager: getBitmap: FileNotFoundException: file:/storage/emulated/0/DCIM/camera/IMG_20191029_101626.jpg (No such file or directory)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.__, PID: 15275
    kotlin.KotlinNullPointerException
        at com.example.__.utils.ImageManagerKt.getBitmap(ImageManager.kt:32)
        at com.example.__.data.FirebaseUserPhoto.uploadNewPhoto(FirebaseUserPhoto.kt:35)
        at com.example.__.viewModel.NextViewModel.uploadNewPhoto(NextViewModel.kt:48)
        at com.example.__.ui.share.NextFragment$onCreateView.onClick(NextFragment.kt:59)
        at android.view.View.performClick(View.java:5610)
        at android.view.View$PerformClick.run(View.java:22265)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6077)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)

Answer 1

您在 val imageFile = File(imgUrl) 中的 imgUrl 以 file:// 开头。

删除它，因为 File() 不需要以 file:// 开头的路径。

getBitmap: FileNotFoundException: 文件:/storage/emulated/0/DCIM/camera/IMG_20191029_101624.jpg (没有这样的文件或目录) (Android)

getBitmap: FileNotFoundException: file:/storage/emulated/0/DCIM/camera/IMG_20191029_101624.jpg (No such file or directory) (Android)

android

kotlin

kotlin-android-extensions