定制Android ListView 快速滚动的滚动条-fast scroll bar thumb

1.方法一：

private void initScrollBar() {

try {

Field f = AbsListView.class.getDeclaredField("mFastScroller");

f.setAccessible(true);

Object o = f.get(mListView);

f = f.getType().getDeclaredField("mThumbDrawable");

f.setAccessible(true);

Drawable drawable = (Drawable) f.get(o);

drawable = getResources().getDrawable(R.drawable.music_slider);

f.set(o, drawable);

} catch (Exception e) {

e.printStackTrace();

}

}</pre>
方法二：
在style.xml中定义主题


 <style name="audiotheme" parent="android:Theme">
        <item name="android:fastScrollTrackDrawable">@drawable/music_scroll_slider_background</item>
        <item name="android:fastScrollThumbDrawable">@drawable/music_slider</item>
    </style>


在AndroidManifest.xml中应用


<application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/audiotheme" >