如何设置AlertDialog项目高度？

Question

目前在Android 4.3设备上.我正在使用这里提供的优秀答案我能够减少AlertDialog单个项目的字体大小:

<style name="AlertDialogTheme" parent="android:Theme.Dialog">
    <item name="android:textSize">13sp</item>
</style>

对话框本身构建为:

ContextThemeWrapper cw = new ContextThemeWrapper( this, R.style.AlertDialogTheme );
AlertDialog.Builder builder = new AlertDialog.Builder(cw);

但是,问题是项目的个别高度仍然保持不变 - 实际上,当您在对话框中滚动时,会显示第五个元素:

我尝试设置dividerHeight但只是增加了间距.我也把layout_margin财产设置为0dp没有成功.

此对话框的正确样式定义是什么,以减少标签之间的空间？

请注意,我不想再使用视图构建整个对话框.我想保留现有的AlertDialog.

Answer 1

这是一个棘手的解决方案 - 覆盖in 的getView方法并ListView以编程方式AlertDialog更改TextView样式属性:

ContextThemeWrapper cw = new ContextThemeWrapper(MainActivity.this, R.style.AlertDialogTheme);
AlertDialog.Builder builder = new AlertDialog.Builder(cw);

AlertDialog dialog = builder.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(DialogInterface dialogInterface) {
        ListView listView = ((AlertDialog) dialogInterface).getListView();
        final ListAdapter originalAdapter = listView.getAdapter();

        listView.setAdapter(new ListAdapter() {
            @Override
            public int getCount() {
                return originalAdapter.getCount();
            }

            @Override
            public Object getItem(int id) {
                return originalAdapter.getItem(id);
            }

            @Override
            public long getItemId(int id) {
                return originalAdapter.getItemId(id);
            }

            @Override
            public int getItemViewType(int id) {
                return originalAdapter.getItemViewType(id);
            }

            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                View view = originalAdapter.getView(position, convertView, parent);
                TextView textView = (TextView) view;
                //textView.setTextSize(16); set text size programmatically if needed
                textView.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, 32 /* this is item height */));
                return view;
            }

            @Override
            public int getViewTypeCount() {
                return originalAdapter.getViewTypeCount();
            }

            @Override
            public boolean hasStableIds() {
                return originalAdapter.hasStableIds();
            }

            @Override
            public boolean isEmpty() {
                return originalAdapter.isEmpty();
            }

            @Override
            public void registerDataSetObserver(DataSetObserver observer) {
                originalAdapter.registerDataSetObserver(observer);

            }

            @Override
            public void unregisterDataSetObserver(DataSetObserver observer) {
                originalAdapter.unregisterDataSetObserver(observer);

            }

            @Override
            public boolean areAllItemsEnabled() {
                return originalAdapter.areAllItemsEnabled();
            }

            @Override
            public boolean isEnabled(int position) {
                return originalAdapter.isEnabled(position);
            }

        });
    }
});

dialog.show();