使用 MediaStore 存储图像会导致特定三星设备上的应用程序崩溃

Question

我已经为这个问题苦苦挣扎了一段时间，不幸的是其他答案没有给我任何线索。

我的应用程序允许用户拍照并存储在本地。大多数设备一切正常，但是我在 特定的三星设备上遇到崩溃运行 Android 9 (API 28).

设备示例为：
三星 SM-G955F
三星 SM-G973F

下面是我用来存储图片的方法：

fun saveMedia(context: Context, uri: Uri) {

    val values = ContentValues().apply {
        put(MediaStore.Images.Media.DISPLAY_NAME, IMAGE_PREFIX + Date().toString(DATE_FORMAT) + ".$FILE_EXTENSION")
        put(MediaStore.Images.Media.MIME_TYPE, MIME_TYPE)
        put(MediaStore.Images.Media.DATE_ADDED, System.currentTimeMillis())

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_PICTURES)
            put(MediaStore.Images.Media.IS_PENDING, 1)
        } else {
            @Suppress("deprecation")
            put(MediaStore.Images.Media.DATA, uri.toString())
        }
    }

    val imageCollection = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        MediaStore.Images.Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
    } else {
        MediaStore.Images.Media.EXTERNAL_CONTENT_URI
    }
    //Crashes here
    val newImageUri = context.contentResolver.insert(imageCollection, values)

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {

        if (newImageUri == null) {
            Log.e(TAG, "unable to insert image: " + values.get(MediaStore.Images.Media.DISPLAY_NAME))
            throw IOException("Failed to create new MediaStore record: "
                    + values.get(MediaStore.Images.Media.DISPLAY_NAME))
        }

        val bitmapSource = ImageDecoder.createSource(context.applicationContext.contentResolver, uri)
        val bitmap = ImageDecoder.decodeBitmap(bitmapSource)

        context.contentResolver.openOutputStream(newImageUri).use { out ->
            bitmap.compress(BITMAP_COMPRESS_FORMAT, 90, out)
        }

        values.clear()
        values.put(MediaStore.Images.Media.IS_PENDING, 0)
        context.contentResolver.update(newImageUri, values, null, null)
    }

    load(context)
    cameraFile = null
}

在这些特定设备上，应用程序在 context.contentResolver.insert(imageCollection, values) 时崩溃作为附加信息，saveMedia 方法将其作为 uri 接收：content://media/external/images/media

这是错误

02-07 00:48:05.666: E/AndroidRuntime(18495):FATAL EXCEPTION: main Process: 
02-07 00:48:05.666: E/AndroidRuntime(18495):com.myapp.myapp, PID: 3773 java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=196677, result=-1, data=Intent { (has extras) }} to activity {com.myapp.myapp/com.myapp.ui.MainActivity}: 
02-07 00:48:05.666: E/AndroidRuntime(18495):java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase(java.util.Locale)' on a null object reference 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.ActivityThread.deliverResults(ActivityThread.java:4604) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.ActivityThread.handleSendResult(ActivityThread.java:4646) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:49) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1947) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.os.Handler.dispatchMessage(Handler.java:106) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.os.Looper.loop(Looper.java:214) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.ActivityThread.main(ActivityThread.java:7032) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at java.lang.reflect.Method.invoke(Native Method) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965) 
02-07 00:48:05.666: E/AndroidRuntime(18495):Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase(java.util.Locale)' on a null object reference 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.os.Parcel.createException(Parcel.java:1972) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.os.Parcel.readException(Parcel.java:1934) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.content.ContentProviderProxy.insert(ContentProviderNative.java:476) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.content.ContentResolver.insert(ContentResolver.java:1594) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at com.myapp.ui.tabs.progress.ProgressViewModel.saveMedia(ProgressViewModel.kt:97) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at com.myapp.ui.tabs.progress.ProgressFragment.onActivityResult(ProgressFragment.kt:185) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at androidx.fragment.app.FragmentActivity.onActivityResult(FragmentActivity.java:170) 
02-07 00:48:05.666: E/AndroidRuntime(18495): at android.app.Activity.dispatchActivityResult(Activity.java:7759)

我找不到它尝试应用的位置 toLowerCase() 也找不到什么对象为空。我错过了什么吗？

非常感谢任何提示谢谢

Answer 1

我最终通过更改这一行解决了这个问题

 put(MediaStore.Images.Media.DATA, uri.toString())

至此

 put(MediaStore.Images.Media.DATA, uri.path)

然后使用以下区分特定 Android 版本的图像加载图像

fun loadPicture(uri: Uri, date: Date) {

  val request = Glide.with(this@ProgressFragment)

  val builder = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
      request.load(uri)
  } else {
      request.load(File(uri.path!!))
  }

  builder.centerCrop().into(picture)

  pictureDate.text = date.toString(getString(R.string.fragment_progress_date))
}

使用 MediaStore 存储图像会导致特定三星设备上的应用程序崩溃

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