情况：我即将使用managequery代码但不推荐使用它，所以我决定使用getContentResolver().query。
但我总是在这一行中收到错误：
Cursor thumbCursor = getContentResolver().query(uri, thumbColumns, MediaStore.Video.Thumbnails.VIDEO_ID + "=" + id, null, null);
08-18 04:17:49.373 20629-20629/com.chill.leoj.burp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.chill.leoj.burp, PID: 20629
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.chill.leoj.burp/com.chill.leoj.burp.Videos}: android.database.sqlite.SQLiteException: no such column: video_id (code 1): , while compiling: SELECT _data, video_id FROM files WHERE (video_id=347888)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2348)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2410)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1313)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5345)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102)
Caused by: android.database.sqlite.SQLiteException: no such column: video_id (code 1): , while compiling: SELECT _data, video_id FROM files WHERE (video_id=347888)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:224)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:180)
at android.content.ContentProviderProxy.query(ContentProviderNative.java:447)
at android.content.ContentResolver.query(ContentResolver.java:478)
at android.content.ContentResolver.query(ContentResolver.java:422)
at com.chill.leoj.burp.Videos.onCreate(Videos.java:150)
at android.app.Activity.performCreate(Activity.java:6012)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2292)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2410)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1313)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5345)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:947)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:742)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102)
这就是我在我的应用中使用它的方式：
Uri uri = MediaStore.Files.getContentUri("external");
String[] thumbColumns = { MediaStore.Video.Thumbnails.DATA,
MediaStore.Video.Thumbnails.VIDEO_ID };
String[] mediaColumns = { MediaStore.Video.Media._ID,
MediaStore.Video.Media.DATA, MediaStore.Video.Media.TITLE,
MediaStore.Video.Media.MIME_TYPE };
Cursor cursor = getContentResolver().query(uri,
mediaColumns, null, null, null);
if (cursor.moveToFirst()) {
do {
VideoViewInfo newVVI = new VideoViewInfo();
int id = cursor.getInt(cursor.getColumnIndex(MediaStore.Video.Media._ID));
Cursor thumbCursor = getContentResolver().query(uri, thumbColumns, MediaStore.Video.Thumbnails.VIDEO_ID
+ "=" + id, null, null);
if (thumbCursor.moveToFirst()) {
newVVI.thumbPath = thumbCursor.getString(thumbCursor.getColumnIndex(MediaStore.Video.Thumbnails.DATA));
Log.v("", newVVI.thumbPath);
}
newVVI.filePath = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA));
newVVI.title = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.TITLE));
newVVI.mimeType = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.MIME_TYPE));
videoRows.add(newVVI);
} while (cursor.moveToNext());
cursor.close();
videoAdapter = new VideoGalleryAdapter(Videos.this, videoRows);
}
有人可以指出我做错了什么，如果可能的话，如何解决这个问题。非常感谢你提前。
答案 0 :(得分：1)
您不应在内容Uri中搜索一般文件（MediaStore.Files.getContentUri("external")）中的视频，而应搜索内容Uri for Video Uri uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;，这样就可以了。