捕获RatingBar单击

时间:2012-11-23 20:56:27

标签: android android-layout ratingbar

我似乎在抓住我的评级栏点击时出现问题。评级栏显示正常,并具有默认值。唯一的问题是我无法更改任何值或未启用。我尝试了很多不同的东西(例如在布局中启用,完全用java构建)。他们似乎没有任何影响。这是我最新的评级栏的化身。我必须做一些stooopid才能捕捉到点击。

Java代码:

  RatingBar showRatingBar = (RatingBar) findViewById(R.id.showRatingBar);
    showRatingBar.setEnabled(true);
    showRatingBar.setClickable(true);
    showRatingBar.setRating(0);
    showRatingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener(){
        @Override
        public void onRatingChanged(RatingBar ratingBar, float rating,
                boolean fromUser) {
            System.out.println("showRating.buildRatingBar:  " +rating);
            ratingBar.setRating(rating);

        }});
    showRatingBar.refreshDrawableState();

布局:

         <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/showQualityLabel"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:text="@string/show_rating_label"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:textColor="#E6E6E6"
            android:textSize="12sp" />

        <RatingBar
            android:id="@+id/showRatingBar"
            style="?android:attr/ratingBarStyleSmall"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:max="5"
            android:numStars="5"
            android:rating="0"
            android:stepSize="1"/>
    </LinearLayout>

提前谢谢。

克雷格

1 个答案:

答案 0 :(得分:32)

setOnClickListener()不起作用是RatingBar重写onTouchEvent()并且永远不让View处理它,所以从不调用View#performClick()(它会调用OnClickListener)。

派生自RatingBar并覆盖onTouchEvent()

ratingBar.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_UP) {
                     float touchPositionX = event.getX();
                     float width = ratingBar.getWidth();
                     float starsf = (touchPositionX / width) * 5.0f;
                     int stars = (int)starsf + 1;
                     ratingBar.setRating(stars);

                     Toast.makeText(MainActivity.this, String.valueOf("test"), Toast.LENGTH_SHORT).show();                   
                     v.setPressed(false);
                }
                if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    v.setPressed(true);
                }

                if (event.getAction() == MotionEvent.ACTION_CANCEL) {
                    v.setPressed(false);
                }




                return true;
            }});