Android--ListView滚动条样式
当ListView的记录超过4页时才会显示滑块
package com.example.test; import java.lang.reflect.Field; import android.app.Activity; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.BaseAdapter; import android.widget.ListView; import android.widget.TextView; public class TestList extends Activity { ListView lv; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.list); lv = (ListView) findViewById(R.id.listView1); lv.setAdapter(new ListAdapter()); try { Field f = AbsListView.class.getDeclaredField("mFastScroller"); f.setAccessible(true); Object o = f.get(lv); f = f.getType().getDeclaredField("mThumbDrawable"); f.setAccessible(true); Drawable drawable = (Drawable) f.get(o); drawable = getResources().getDrawable(R.drawable.ic_launcher); f.set(o, drawable); } catch (Exception e) { throw new RuntimeException(e); } } public class ListAdapter extends BaseAdapter { public int getCount() { return 200; } public Object getItem(int position) { return null; } public long getItemId(int position) { return 0; } public View getView(int position, View convertView, ViewGroup parent) { TextView tv = new TextView(TestList.this); tv.setTextSize(30); tv.setText("aaaaa" + position); return tv; } } }
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ListView android:id="@+id/listView1" android:layout_width="match_parent" android:layout_height="wrap_content" android:fastScrollEnabled="true" > </ListView> </LinearLayout>