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我在一个选项卡内有一个列表视图,它第一次在另一个选项卡内显示,当我单击列表时,此警报正确显示。但是当我单击另一个列表而不更改选项卡时,它显示此错误

TouchEvent: ACTION_DOWN but pointers are already down.  Probably missing ACTION_UP from previous gesture.

我的警报看起来像这样

@Override
public boolean onCreateOptionsMenu(Menu menu) {

    //MenuInflater inflater = getMenuInflater();
    //inflater.inflate(R.menu.downloadmennu, menu);

//---------------------------------------------------------------------------------------------------------
    AlertDialog.Builder alertDialog = new AlertDialog.Builder(Question_Download.this.getParent().getParent());

    alertDialog.setTitle("Make your choice...");
    alertDialog.setMessage("What do you want to download?");
    alertDialog.setIcon(R.drawable.save_file_floppy);

    alertDialog.setPositiveButton("Mock Exam", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) 
        {
            downloadOptionSelected = DownloadOptions.MockExam;
            isMock = true;
            AppPreferenceStatus.setStudyDownload(CurContext,CourseMatIntent.MockExam);
            MockExamActivity(chapterPosition);
        }
    });

    alertDialog.setNeutralButton("Study Mats.", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) 
        {
            downloadOptionSelected = DownloadOptions.StudyMaterials;
            AppPreferenceStatus.setStudyDownload(CurContext,CourseMatIntent.StudyMaterials);
            StudyMatActivity(chapterPosition);
        }
    });

    alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) 
        {

        }
    });

    alertDialog.show();
   return true;
   //---------------------------------------------------------------------------------------------------------

}
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