Question

我正在开发用户可以查看和评价产品的应用。因此，每当我点击ratingButton时，我会得到一个弹出窗口或AlertDialog，我可以在其中评定1-5颗星。然后用户应该保存或取消评级。但是，RatingBar似乎没有显示在AlertDialog中。下面的图像应该在对话框中显示星星。如何让RatingBar显示在AlertDialog中？

这是我到目前为止所做的。

ratingBtn的onClickListener

ratingBtn.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {
           AlertDialog.Builder builder = new AlertDialog.Builder(activity, R.style.AlertDialogStyle);
           builder .setTitle("Rate!");

            View rootView = inflater.inflate(rate_layout, container, false);

            final RatingBar ratingBar = (RatingBar) rootView.findViewById(R.id.ratingBar);

            ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
               @Override
               public void onRatingChanged(RatingBar ratingBar, float rating,
                                                    boolean fromUser) {
                   String value = String.valueOf(ratingBar.getRating()*2);
                   Toast.makeText(activity, " " + value, Toast.LENGTH_SHORT).show();
                        }
                    });

            builder.setPositiveButton("Save", new DialogInterface.OnClickListener() {
               @Override
               public void onClick(DialogInterface dialog, int which) {
                   Toast.makeText(activity, "Saved", Toast.LENGTH_SHORT).show();
               }
            });

            builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {

               @Override
               public void onClick(DialogInterface dialog, int which) {
                   dialog.dismiss();
               }
            });

            AlertDialog alert = builder.create();
            alert.getWindow().setLayout(600, 400);
            alert.show();
            }
          });

rate_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.test.Rate">

    <RatingBar
        android:id="@+id/ratingBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/rateMessage"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="52dp"
        android:theme="@style/RatingBar"/>

</RelativeLayout>

styles.xml

 <style name="AlertDialogStyle" parent="Theme.AppCompat.Light.Dialog.Alert">
        <item name="colorAccent">#626262</item>
        <item name="android:textColorPrimary">#616161</item>
        <item name="android:background">@color/white</item>
    </style>

Answer 1

您错过了builder.setView(rootView);

在此行之后添加此行

View rootView = inflater.inflate(rate_layout, container, false);

Answer 2

为什么使用评级栏的警告对话框。您可以在下面使用： ratingBar =（ratingBar）findViewById（R.id.ratingBar）; txtRatingValue =（TextView）findViewById（R.id.txtRatingValue）;

//if rating value is changed,
//display the current rating value in the result (textview) automatically
ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
    public void onRatingChanged(RatingBar ratingBar, float rating,
        boolean fromUser) {

        txtRatingValue.setText(String.valueOf(rating));

    }
});

Answer 3

然后你必须使用自定义警报对话框。

RatingBar不在AlertDialog中显示

3 个答案: