伴随ListView、RecyclerView、ScrollView滚动滑入滑出小图标--第三方开源--FloatingActionButton

FloatingActionButton在github上的项目主页是：https://github.com/makovkastar/FloatingActionButton

它的依赖包NineOldAndroids在github上的项目主页是：https://github.com/JakeWharton/NineOldAndroids

（导包的时候注意要把android-support-v7-appcompat作为它的一个Library，不要重复了NineOldAndroids的引用）

测试代码：

activity_main.xml：

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     xmlns:fab="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="com.zzw.testfloatingactionbutton.MainActivity" >

     <ListView
         android:id="@+id/listView"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />

     <com.melnykov.fab.FloatingActionButton
         android:id="@+id/fab"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
         android:layout_alignParentRight="true"
         android:layout_margin="16dip"
         android:src="@drawable/ic_launcher"
         fab:fab_shadow="true"
         fab:fab_type="normal" />

 </RelativeLayout>

MainActivity.java：

 package com.zzw.testfloatingactionbutton;

 import com.melnykov.fab.FloatingActionButton;

 import android.app.Activity;
 import android.os.Bundle;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.Toast;

 public class MainActivity extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         String[] data=new String[100];
         for(int i=0;i<data.length;i++){
             data[i]="ZZW1994"+i;
         }  

         ListView listView=(ListView) findViewById(R.id.listView);  

         ArrayAdapter adapter=new ArrayAdapter(this,android.R.layout.simple_list_item_1,data);
         listView.setAdapter(adapter);  

         //附着在ListView，跟随ListView滚动滑入滑出
         FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
         fab.attachToListView(listView);
         fab.setColorPressed(0xffb71c1c); 

         fab.setOnClickListener(new OnClickListener() {

             @Override
             public void onClick(View v) {
                 Toast.makeText(getApplicationContext(), "hello", 0).show();

             }
         });
     }

 }