我一直在研究短信应用程序.直到昨天,当我将Nexus 4更新为

Android 4.4,KitKat时,一切顺利.诸如将SMS标记为已读/未读以及删除线程中的所有消息等功能已停止工作.为什么会这样？它适用于其他三星设备(不运行KitKat).

这是我将邮件标记为已读或未读的代码：

public static void markRead(final Context context, final Uri uri,

final int read) {

Log.d(TAG, "markRead(" + uri + "," + read + ")");

if (uri == null) {

return;

}

String[] sel = Message.SELECTION_UNREAD;

if (read == 0) {

sel = Message.SELECTION_READ;

}

final ContentResolver cr = context.getContentResolver();

final ContentValues cv = new ContentValues();

cv.put(Message.PROJECTION[Message.INDEX_READ], read);

try {

cr.update(uri, cv, Message.SELECTION_READ_UNREAD, sel);

} catch (IllegalArgumentException e) {

Log.e(TAG, "failed update", e);

Toast.makeText(context, e.getMessage(), Toast.LENGTH_LONG).show();

}

}

要删除线程中的所有消息,我使用：

public static void deleteMessages(final Context context, final Uri uri,

final int title, final int message, final Activity activity) {

Log.i(TAG, "deleteMessages(..," + uri + " ,..)");

final Builder builder = new Builder(context);

builder.setTitle(title);

builder.setMessage(message);

builder.setNegativeButton(android.R.string.no, null);

builder.setPositiveButton(android.R.string.yes,

new DialogInterface.OnClickListener() {

@Override

public void onClick(final DialogInterface dialog,

final int which) {

final int ret = context.getContentResolver().delete(

uri, null, null);

Log.d(TAG, "deleted: " + ret);

if (activity != null && !activity.isFinishing()) {

activity.finish();

}

if (ret > 0) {

Conversation.flushCache();

Message.flushCache();

SmsReceiver.updateNewMessageNotification(context,

null);

// adapter.notifyDataSetChanged();

}

try {

testFromFragment(context);

} catch (Exception e) {

e.printStackTrace();

}

}

});

builder.show();

}