我创建了一个获取视频的功能
private val projectionVideo = arrayOf(
MediaStore.Video.Media._ID, //ID
MediaStore.Video.Media.DISPLAY_NAME, //NAME
MediaStore.Video.Media.DATA, //PATH TO CONTENT
MediaStore.Video.Media.DATE_TAKEN, //DATE
MediaStore.Video.Media.DURATION,
MediaStore.Video.Media.SIZE
)
private fun queryVideos(cr: ContentResolver): Cursor? =
cr.query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
projectionVideo, null, null,
MediaStore.Video.Media.DATE_TAKEN + " $SORT_ORDER"
)
使用Java
public static Uri getContentUri(String volumeName) {
return Uri.parse(CONTENT_AUTHORITY_SLASH + volumeName +
"/video/media");
}
/**
* The content:// style URI for the internal storage.
*/
public static final Uri INTERNAL_CONTENT_URI =
getContentUri("internal");
/**
* The content:// style URI for the "primary" external storage
* volume.
*/
public static final Uri EXTERNAL_CONTENT_URI =
getContentUri("external");
[问题是,该视频不会以任何路径显示任何视频,例如'DCIM','WhatsApp视频'等。我使用自己的应用创建的每个视频都会正确插入,这与默认相机应用创建的视频不同,除非我先打开它们。
private val videoProjection = arrayOf(
MediaStore.Video.Media._ID,
MediaStore.Video.Media.DATA,
MediaStore.Video.Media.DURATION,
MediaStore.Video.Media.MIME_TYPE,
MediaStore.Video.Media.SIZE,
MediaStore.Video.Media.DATE_ADDED)
context.contentResolver.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
videoProjection,
null,
null,
"${MediaStore.Video.Media.DATE_ADDED} DESC"
)?.use { cursor ->
while (cursor.moveToNext()) {
//read video attr from cursor
cursor.getLong(cursor.getColumnIndexOrThrow(videoProjection[0])) // read video id
cursor.getString(cursor.getColumnIndexOrThrow(videoProjection[1])) // read video path
// and .....
}
}