Android RatingBar显示超过5星

Question

I want to show a rating bar via an alert dialog in my android app. The problem I am facing is that depending upon the width of the screen, the ratingbar shows more than 5 stars(upto 10) in landscape mode and the function setNumStars() has no effect. There are posts already dealing with this issue but they deal with a ratingbar whose laout is defined statically while I am creating it dynamically. How to solve this problem?

public class MainActivity extends Activity {
private Button launchButton;
//Rating dialog
 private AlertDialog.Builder rater;
 private RatingBar ratingBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    launchButton =(Button)findViewById(R.id.ratingButton);
    launchButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            //Here the alert dialog will be launched
            showRatingDialog();
        }
    });

      //Setting up rating dialog
        rater = new AlertDialog.Builder(this);

        rater.setTitle("This is the rating dialog");


}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}
public void showRatingDialog()
{
  ratingBar = (RatingBar)findViewById(R.id.ratingStars);
      rater.setNegativeButton("Abbrechen", null);
      rater.setView(ratingBar);
      rater.show();

}
}

I have tried using static layout for the ratingbar but when I do this and try to display the ratingbar via an alert dialog, no stars are shown. Here is the layout file for rating bar:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<RatingBar
        android:id="@+id/ratingStars"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="5"
        android:stepSize="1"
        />

</LinearLayout>

Answer 1

setting the width of the RatingBar to "wrap content" solves the whole issue. According to the documentation:

Sets the number of stars to show. In order for these to be shown properly, it is recommended the layout width of this widget be wrap content.

Answer 2

设置android:numStars="5"和android:layout_width="wrap_content"

Answer 3

Try to set max value for your RatingBar Like Below

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/active_bg" >

    <RatingBar
            android:id="@+id/rating"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            style="?android:attr/ratingBarStyleSmall"
            android:numStars="5"
            android:stepSize="0.1"
            android:isIndicator="true" />

</RelativeLayout>

create an xml file in your layout file and set this as the content

Change your showDialog function like this

LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.***your_xml_name***));
editor.setView(layout);
editor.show();

Answer 4

keep parent of rating bar as linear layout and keep nothing else in that linear layout, that worked for me

This blog shows the clear picture of solution