我在查詢MediaStore.Images.Media.EXTERNAL_CONTENT_URI
並且查詢正常工作。我能夠從具有恆定的,例如每列獲取數據:MediaStore get Image高度/寬度
currentImage.ImageUrl = imagecursor.getString(imagecursor.getColumnIndex(MediaStore.Images.Media.DATA));
currentImage.Lat = imagecursor.getString(imagecursor.getColumnIndex(MediaStore.Images.Media.LATITUDE));
currentImage.Long = imagecursor.getString(imagecursor.getColumnIndex(MediaStore.Images.Media.LONGITUDE));
寬度/高度列沒有固定(無MediaStore.Images.Media.WIDTH
),所以我試圖用imagecursor.getLong(imagecursor.getColumnIndex("width"));
訪問它們。
試圖使用getLong,getString,getInt ...什麼都沒有 - 總是同樣的崩潰。
這裏的堆棧:
02-22 19:38:26.242: E/AndroidRuntime(1607): FATAL EXCEPTION: main
02-22 19:38:26.242: E/AndroidRuntime(1607): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.intent.action.MEDIA_SCANNER_FINISHED dat=file:///mnt/sdcard flg=0x10 } in co[email protected]415b26c0
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:737)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.os.Handler.handleCallback(Handler.java:605)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.os.Handler.dispatchMessage(Handler.java:92)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.os.Looper.loop(Looper.java:137)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.app.ActivityThread.main(ActivityThread.java:4424)
02-22 19:38:26.242: E/AndroidRuntime(1607): at java.lang.reflect.Method.invokeNative(Native Method)
02-22 19:38:26.242: E/AndroidRuntime(1607): at java.lang.reflect.Method.invoke(Method.java:511)
02-22 19:38:26.242: E/AndroidRuntime(1607): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
02-22 19:38:26.242: E/AndroidRuntime(1607): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
02-22 19:38:26.242: E/AndroidRuntime(1607): at dalvik.system.NativeStart.main(Native Method)
02-22 19:38:26.242: E/AndroidRuntime(1607): Caused by: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it.
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.database.CursorWindow.nativeGetLong(Native Method)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.database.CursorWindow.getLong(CursorWindow.java:515)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.database.CursorWindow.getInt(CursorWindow.java:582)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.database.AbstractWindowedCursor.getInt(AbstractWindowedCursor.java:69)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.database.CursorWrapper.getInt(CursorWrapper.java:102)
02-22 19:38:26.242: E/AndroidRuntime(1607): at com.Activity.android.chat.service.ChatService.getUserImages(ChatService.java:251)
02-22 19:38:26.242: E/AndroidRuntime(1607): at com.Activity.android.chat.service.ChatService.access$1(ChatService.java:209)
02-22 19:38:26.242: E/AndroidRuntime(1607): at com.Activity.android.chat.service.ChatService$ChatServiceReceiver.onReceive(ChatService.java:204)
02-22 19:38:26.242: E/AndroidRuntime(1607): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:728)
02-22 19:38:26.242: E/AndroidRuntime(1607): ... 9 more
將不勝感激任何幫助,這......不知道我還有什麼可以試試。
謝謝!
我有同樣的問題,並使用此代碼。但它給錯誤:「沒有這樣的列:寬度」...你能幫我嗎? – 2012-03-17 13:16:51
@Farid Ala當然!我認爲「寬度」和「高度」列僅適用於Android 3.0及更高版本,所以如果您嘗試在較低的Android版本上訪問它們,它會給您「沒有這樣的列」錯誤。您可以通過使用Root Explorer - > Data - > Data - > com.android.providers.media - > databases - > external.db - > images打開mediaStore數據庫來檢查是否有這些列。 – 2012-03-17 16:23:55
感謝您的回覆。你是對的,它只適用於Android 3.0+。那麼,我如何才能在Android 3.0上獲取圖片大小?我需要使用Samir的解決方案嗎?如你所說,這有點貴。我很困惑。 – 2012-03-18 08:28:46