一、报错信息

Android 分区存储 , 将 图片文件 保存到 Movies 目录下报错 :

2021-05-18 14:31:50.691 1341-5448/com.google.android.providers.media.module E/DatabaseUtils: Writing exception to parcel
    java.lang.IllegalArgumentException: Primary directory Movies not allowed for content://media/external/images/media; allowed directories are [DCIM, Pictures]
        at com.android.providers.media.MediaProvider.ensureFileColumns(MediaProvider.java:2682)
        at com.android.providers.media.MediaProvider.ensureUniqueFileColumns(MediaProvider.java:2347)
        at com.android.providers.media.MediaProvider.insertFile(MediaProvider.java:2957)
        at com.android.providers.media.MediaProvider.insertInternal(MediaProvider.java:3361)
        at com.android.providers.media.MediaProvider.insert(MediaProvider.java:3208)
        at android.content.ContentProvider$Transport.insert(ContentProvider.java:336)
        at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:167)
        at android.os.Binder.execTransactInternal(Binder.java:1154)
        at android.os.Binder.execTransact(Binder.java:1123)
2021-05-18 14:31:50.695 6361-6361/kim.hsl.file E/AndroidRuntime: FATAL EXCEPTION: main
    Process: kim.hsl.file, PID: 6361
    java.lang.RuntimeException: Unable to start activity ComponentInfo{kim.hsl.file/kim.hsl.file.MainActivity}: java.lang.IllegalArgumentException: Primary directory Movies not allowed for content://media/external/images/media; allowed directories are [DCIM, Pictures]
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
     Caused by: java.lang.IllegalArgumentException: Primary directory Movies not allowed for content://media/external/images/media; allowed directories are [DCIM, Pictures]
        at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:172)
        at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:142)
        at android.content.ContentProviderProxy.insert(ContentProviderNative.java:549)
        at android.content.ContentResolver.insert(ContentResolver.java:2149)
        at android.content.ContentResolver.insert(ContentResolver.java:2111)
        at kim.hsl.file.MainActivity.createImageFile(MainActivity.kt:116)
        at kim.hsl.file.MainActivity.doSomethingWithPermissions(MainActivity.kt:41)
        at kim.hsl.file.MainActivity.onCreate(MainActivity.kt:24)
        at android.app.Activity.performCreate(Activity.java:8000)
        at android.app.Activity.performCreate(Activity.java:7984)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:223) 
        at android.app.ActivityThread.main(ActivityThread.java:7656) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 
2021-05-18 14:31:50.797 321-321/? E/Layer: [Surface(name=Task=44)/@0x35761af - animation-leash#0] No local sync point found
2021-05-18 14:31:50.797 321-321/? E/Layer: [Surface(name=Task=1)/@0xe9c7852 - animation-leash#0] No local sync point found

  

 

  
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二、解决方案

在 Android $11$ 之后 , 不能使用 File 进行文件操作 , 需要使用 MediaStore 进行文件操作 ,

MediaStore 的如下内部类 Files , Images , Downloads , Audio , Video , 负责相应目录的文件操作 , 分别对应外置存储中的 Document , Pictures , Download , Music , Movies 目录 ;

对应格式的文件 , 只能放在特定的目录中 ;

文件存储类型限制 : 文件一旦放错位置 , 就会抛异常 ;

• 专门存储 图片文件 的目录 Pictures , 只能存放图片 , 不能存放其它类型文件 ,

• 专门存储 视频文件 的目录 Movies , 只能存视频文件 ;

• 专门存储音频文件的目录 Music , 只能存储音频文件 ;

• 专门存储文档文件的目录 Document , 只能存储文档相关文件 ;

• Download 目录可以放置任何类型的文件 ;

文章来源: hanshuliang.blog.csdn.net，作者：韩曙亮，版权归原作者所有，如需转载，请联系作者。

原文链接：hanshuliang.blog.csdn.net/article/details/116988321