如何删除AlertDialog中的分隔符

Question

我正在使用android.support.v7.app.AlertDialog.However，我无法删除divider.Can有人告诉我如何删除它？谢谢。

这是我的风格：

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="alertDialogTheme">@style/AppTheme.Dialog.Alert</item>
</style>

<style name="AppTheme.Dialog.Alert" parent="Theme.AppCompat.Light.Dialog.Alert">
    <item name="colorAccent">@color/colorAccent</item>
</style>

这是我的代码：

AlertDialog.Builder builder = new AlertDialog.Builder(mSettingsView.getBaseActivity());
builder.setTitle("Ringtone");
builder.setSingleChoiceItems(list, -1, listener1);
builder.setPositiveButton("OK", listener2);
builder.setNegativeButton("Cancel", listener3);
builder.show();

Answer 1

AlertDialog分隔符在棒棒糖前和棒棒糖设备中是不同的。我发现，在前棒棒糖（预材料设计）设备中，分隔色为灰色。所以它是可见的。但对于材料设计（棒棒糖）设备，分隔器颜色是透明的，因此它看起来不可见/存在。

要在所有设备上显示分隔线，请明确地将颜色设置为灰色或任何其他颜色。

AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

AlertDialog alertDialog = builder.create();

ListView listView = alertDialog.getListView();

listView.setDivider(new ColorDrawable(Color.GRAY));

listView.setDividerHeight(1);

alertDialog.show();

Answer 2

你在android.support.v4.app.DialogFragment中使用AlertDialog吗？我总是这样使用它，我从来没有在你的屏幕上得到分隔符：

import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;

public class MyDialogFragment extends DialogFragment {

    public static MyDialogFragment newInstance(){
        return new MyDialogFragment;
    }

    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        // Get the layout inflater
        LayoutInflater inflater = getActivity().getLayoutInflater();
        // Inflate my custom layout
        View layout = inflater.inflate(R.layout.my_custom_layout, null);
        // Initialize my layout components
        ...
        // Build dialog
        builder.setTitle("TITLE")
            .setView(layout)
            .setPositiveButton("OK", listener)
            .setNegativeButton("Cancel", listener);
        return builder.create();
    }
}