Question

我通过膨胀以下XML创建了AlertDialog：

    LayoutInflater li = LayoutInflater.from(this);
    View dialogView = li.inflate(R.layout.activity_list_logs, null);
    ListView list = (ListView) dialogView.findViewById(R.id.listDates);

显示alertDialog的完整代码是：

private void showLogs(final List<Absentees> abs) {
    LayoutInflater li = LayoutInflater.from(this);
    View dialogView = li.inflate(R.layout.activity_list_logs, null);
    ListView list = (ListView) dialogView.findViewById(R.id.listDates);
    list.setAdapter(new CustomAdapterTagAbsentees(this,abs));
    list.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapter, View view,int position, long id) {
                Absentees a =(Absentees)adapter.getItemAtPosition(position);
                try
                {
                    showLogDetails(a);
                }
                catch(Exception e)
                {
                    show_popup(e+"");
                }
            }   

        });
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
    alertDialogBuilder.setView(dialogView);
    alertDialogBuilder.setTitle("Attendance Details:");
    alertDialogBuilder.setMessage("Day : ");
    alertDialogBuilder
        .setCancelable(true)
        .setPositiveButton("Dismiss",
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int id) {
                dialog.cancel();
            }
        });
  AlertDialog alertDialog = alertDialogBuilder.create();
  alertDialog.show();
}

使用的布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
>
<ListView 
    android:id="@+id/listDates"
    android:layout_width="match_parent" 
    android:layout_height="0dp" 
    android:layout_weight="1"
    android:textSize="20sp"     
    />
</LinearLayout>

关于我的问题：

如果List足够小以适应屏幕，我可以看到“Dismiss”按钮（PositiveButton）。 See the Normal Image

否则如果List太大，我看不到“Dismiss”按钮

Please see the bottom side!!

请帮助我!!，我试图在布局本身内部添加一个按钮，它显示正确，但我想知道为什么这种显示positiveButton的默认方式根本不显示

Answer 1

使用RelativeLayout而不是Linear。将按钮设置为layout_alignParentBottom =＆＃34; true＆＃34;。将listview放到layout_above =＆＃34;按钮＆＃34;的id。这将强制按钮到屏幕底部，并在绘制列表视图之前为它们保留空间。否则列表视图会贪婪并且会占用所需的所有空间。

Answer 2

这是我的问题的最终解决方案，感谢@blackbelt的建议

 private void showLogs(final List<Absentees> abs) {
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
    final ListAdapter adapter = new CustomAdapterTagAbsentees(this,abs);
    alertDialogBuilder.setAdapter(adapter, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int item) {
            showLogs(abs);
            Absentees a =(Absentees) adapter.getItem(item);
            showLogDetails(a);
        }
    });

    alertDialogBuilder.setTitle("Attendance Details:");
    //alertDialogBuilder.setMessage("Day : XXXX");
    alertDialogBuilder
        .setCancelable(false)
        .setPositiveButton("Dismiss",
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int id) {
                dialog.cancel();
            }
        });
  AlertDialog alertDialog = alertDialogBuilder.create();
  alertDialog.show();
}

我必须发表评论/删除

 alertDialogBuilder.setMessage("Day : XXXX ");

成功实施，不知道为什么!!

无法在充气视图中查看按钮

2 个答案: