lcshx/xlhratingbar

Generic custom Ratingbar, fully specified by user size, number, style

you can custom star style

How to use

add the library as dependency

Add the library as dependency to your build.gradle file.

dependencies {
	//other dependencies...
	compile 'com.xingliuhua:xlhratingbar_lib:2.1'
}

implement interface

implement IRatingViewand to custom your star UI.of course,you can see SimpleRatingView

public interface IRatingView {
    /**
     * get image resource state by posi and state
     *
     * @param posi
     * @param state
     * @return
     */
    int getStateRes(int posi, int state);

    /**
     * @param rating
     * @param numStars
     * @param position from 0
     * @return
     */
    int getCurrentState(float rating, int numStars, int position);

    /**
     * get a ImageView,you can set LinearLayout.LayoutParams for your ImageView
     *
     * @param context
     * @param posi    from 0
     * @return
     */
    ImageView getRatingView(Context context,int numStars, int posi);

    /**
     * not selected
     */
    public static final int STATE_NONE = 0;
    /**
     * select half
     */
    public static final int STATE_HALF = 1;
    /**
     * selected
     */
    public static final int STATE_FULL = 2;

}

SimpleRatingView:

public class SimpleRatingView implements IRatingView {

    @Override
    public int getStateRes(int posi, int state) {
        int id = R.drawable.ic_star_border_red_400_36dp;
        switch (state) {
            case STATE_NONE:
                id = R.drawable.ic_star_border_red_400_36dp;
                break;
            case STATE_HALF:
                id = R.drawable.ic_star_half_red_400_36dp;
                break;
            case STATE_FULL:
                id = R.drawable.ic_star_red_400_36dp;
                break;
            default:
                break;
        }
        return id;
    }

    @Override
    public int getCurrentState(float rating, int numStars, int position) {
        position++;
        float dis = position - rating;
        if (dis <= 0) {
            return STATE_FULL;
        }
        if (dis == 0.5) {
            return STATE_HALF;
        }
        if (dis > 0.5) {
            return STATE_NONE;
        }
        return 0;
    }


    @Override
    public ImageView getRatingView(Context context, int numStars, int posi) {
        ImageView imageView = new ImageView(context);
        return imageView;
    }
}

use XLHRatingBar in xml

<com.example.xlhratingbar_lib.XLHRatingBar
		xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        app:numStars="5"
        app:rating="5"
        app:ratingViewClass="com.example.xlhratingbar.SimpleRatingView"
        />

you can set star num ,rating and ratingView class name

set view

you can set rating view by code or xml set view by code:

 xlhRatingBar.setRatingView(new SimpleRatingView5());

other:

 xlhRatingBar.setNumStars(7);
 xlhRatingBar.setRating(5);
 xlhRatingBar.setOnRatingChangeListener(new XLHRatingBar.OnRatingChangeListener() {
            @Override
            public void onChange(float rating, int numStars) {
                Toast.makeText(getApplicationContext(), "rating:" + rating, Toast.LENGTH_SHORT).show();
            }
 });
findViewById(R.id.btn_get_rating).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "rating:" + xlhRatingBar.getRating(), Toast.LENGTH_SHORT).show();
            }
});