如何在中央Android上的RatingBar [英] How to center a RatingBar in Android

问题描述

我创建一个自定义的RatingBar在这里给出的堆栈溢出教程的一个描述和它的寻找伟大，问题是与图像的定心。这里是我得到了什么：

I have created a custom RatingBar as described in one of the tutorials given here on stack-overflow and it's looking great, the problem is with the centering of the image. here is what I've got:

正如你可以看到的TextView在的LinearLayout垂直居中，但的RatingBar是在它的顶部。下面是这个形象我的XML code：

As you can see the TextView is centered vertically in the LinearLayout, but the RatingBar is at the top of it. Here is my xml code of this image:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/scrollView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentTop="true"
    android:foregroundGravity="center" >

    <LinearLayout
        android:layout_width="320dp"
        android:layout_height="match_parent"
        android:gravity="center" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView" />

        <RatingBar
            android:id="@+id/ratingBar1"
            style="@style/starsRatingBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:numStars="5"
            android:rating="2.3"
            android:stepSize="1" />

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="right"
            android:src="@drawable/ic_launcher" />

    </LinearLayout>

</ScrollView>

下面是造型的code：

Here is the code of the styling:

<style name="starsRatingBar" parent="@android:style/Widget.RatingBar">
        <item name="android:progressDrawable">@drawable/star_ratingbar_full</item>
        <item name="android:minHeight">36dip</item>
        <item name="android:maxHeight">36dip</item>
    </style>

在的RatingBar任何想法，将apprisiated！

Any ideas in the RatingBar would be apprisiated!

感谢

推荐答案

好吧，我想我已经知道了。

Ok, I think I've got it.

问题的关键是滚动型：它会自动使事情变得紧凑，除非你明确告诉它，否则。在滚动视图，设置

The key issue is the ScrollView: it automatically makes things compact, unless you specifically tell it otherwise. In the scroll view, set

android:fillViewport="true"

要使其使用的可用空间。

to make it use the space available.

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