android - Textview 不会随着 android 3d 旋转木马中选择的改变而改变

Question

我正在尝试在我的 Android 应用程序中使用 Android 3D Carousel (codeproject.com/Articles/146145/Android-3D-Carousel)。在演示中， Activity 顶部有一个 TextView ，其中文本随着 3D 旋转木马中选择的变化而变化。这是 Activity 中使用的 main.xml 的 xml。

  <com.carouseldemo.controls.Carousel
        android:id="@+id/carousel"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:animationDuration="200"
        pj:Items="@array/entries"
        pj:Names="@array/names"
        pj:SelectedItem="0"
        pj:UseReflection="true" />


<TextView
    android:id="@+id/selected_item"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_weight="0.8"
    android:background="#1E1921"
    android:text="text"
    android:textColor="#FFF"
    android:textStyle="normal" />

数组“@array/entries”和“@array/names”均包含 6 个项目。问题是当我尝试增加编号时。在这些数组中的项目中， Activity 中的 TextView (selected_item) 随着轮播中项目的选择而改变数据停止变化。它只显示第一项。下面是 TextView 的代码:-

 carousel.setOnItemSelectedListener(new OnItemSelectedListener(){

        public void onItemSelected(CarouselAdapter<?> parent, View view,
                int position, long id) {

            final TextView txt = (TextView)(findViewById(R.id.selected_item));

            switch(position){
            case 0:
                txt.setText("The cat (Felis catus), also known as the domestic cat or housecat to distinguish it from other felids and felines, is a small, usually furry, domesticated, carnivorous mammal that is valued by humans for its companionship and for its ability to hunt vermin and household pests. Cats have been associated with humans for at least 9,500 years, and are currently the most popular pet in the world. Owing to their close association with humans, cats are now found almost everywhere in the world.");
                break;
            case 1:
                txt.setText("The hippopotamus (Hippopotamus amphibius), or hippo, from the ancient Greek for \"river horse\" (ἱπποπόταμος), is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae (the other is the Pygmy Hippopotamus.) After the elephant, the hippopotamus is the third largest land mammal and the heaviest extant artiodactyl.");
                break;
            case 2:
                txt.setText("A monkey is a primate, either an Old World monkey or a New World monkey. There are about 260 known living species of monkey. Many are arboreal, although there are species that live primarily on the ground, such as baboons. Monkeys are generally considered to be intelligent. Unlike apes, monkeys usually have tails. Tailless monkeys may be called \"apes\", incorrectly according to modern usage; thus the tailless Barbary macaque is called the \"Barbary ape\".");
                break;
            case 3:
                txt.setText("A mouse (plural: mice) is a small mammal belonging to the order of rodents. The best known mouse species is the common house mouse (Mus musculus). It is also a popular pet. In some places, certain kinds of field mice are also common. This rodent is eaten by large birds such as hawks and eagles. They are known to invade homes for food and occasionally shelter.");
                break;
            case 4:
                txt.setText("The giant panda, or panda (Ailuropoda melanoleuca, literally meaning \"black and white cat-foot\") is a bear native to central-western and south western China.[4] It is easily recognized by its large, distinctive black patches around the eyes, over the ears, and across its round body. Though it belongs to the order Carnivora, the panda's diet is 99% bamboo.");
                break;
            case 5:
                txt.setText("Rabbits (or, colloquially, bunnies) are small mammals in the family Leporidae of the order Lagomorpha, found in several parts of the world. There are eight different genera in the family classified as rabbits, including the European rabbit (Oryctolagus cuniculus), cottontail rabbits (genus Sylvilagus; 13 species), and the Amami rabbit (Pentalagus furnessi, an endangered species on Amami Ōshima, Japan)");
                break;
            }

        }

        public void onNothingSelected(CarouselAdapter<?> parent) {
        }

    }
    );

以及条目和名称数组的 xml:-

<resources xmlns:android="http://schemas.android.com/apk/res/android">
<array name="entries">
    <item>@drawable/cat</item>      
    <item>@drawable/hippo</item>        
    <item>@drawable/monkey</item>       
    <item>@drawable/mouse</item>
    <item>@drawable/panda</item>        
    <item>@drawable/rabbit</item>                       
</array>    
<array name="names">
    <item>The cat</item>
    <item>The hippo</item>
    <item>The monkey</item>
    <item>The mouse</item>
    <item>The panda</item>
    <item>The rabbit</item>
</array>

请帮忙。

Answer 1

在这里找到解决方案:-

在 Carousel.java 中:-

将“if (angle != 0.0f)”更改为“if (Math.abs(angle) > 4)”

http://code.google.com/p/android-carousel-demo/issues/detail?id=1