【移動應用開發(fā)技術(shù)】android如何使用PullToRefresh框架實現(xiàn)ListView下拉刷新上拉加載更多

【移動應用開發(fā)技術(shù)】android如何使用PullToRefresh框架實現(xiàn)ListView下拉刷新上拉加載更多

/upload/information/20200623/125/125180.gif/upload/information/20200623/125/125181.png<LinearLayout

xmlns:android="/apk/res/android"

xmlns:tools="/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

<!--

我們添加了一個屬性：ptr:ptrMode="both"

，意思：上拉和下拉都支持。

可選值為：disabled（禁用下拉刷新），pullFromStart（僅支持下拉刷新），

pullFromEnd（僅支持上拉刷新），both（二者都支持），manualOnly（只允許手動觸發(fā)）

-->

<!--

ptr:ptrAnimationStyle="rotate"

FlipLoadingLayout為iOS風格的箭頭顛倒的刷新動畫

ptr:ptrAnimationStyle="flip"

RotateLoadingLayout為android風格的圖片旋轉(zhuǎn)動畫

-->

<com.ptrflv.www.pulltorefreshlistview.PullToRefreshListView

xmlns:ptr="/apk/res-auto"

android:id="@+id/pull_to_refresh_listview"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

ptr:ptrMode="both"

ptr:ptrAnimationStyle="flip"

/>

</LinearLayout><?xml

version="1.0"

encoding="utf-8"?>

<resources>

<!--

上拉刷新

-->

<!--

…代表三個點

...

-->

<string

name="pull_to_refresh_pull_label">向下拉刷新…</string>

<string

name="pull_to_refresh_release_label">松開更新…</string>

<string

name="pull_to_refresh_refreshing_label">正在加載…</string>

<!--

下拉加載更多

-->

<string

name="pull_to_refresh_from_bottom_pull_label">向下拉加載更多…</string>

<string

name="pull_to_refresh_from_bottom_release_label">松開加載更多…</string>

<string

name="pull_to_refresh_from_bottom_refreshing_label">正在加載…</string>

</resources>public

class

MainActivity

extends

Activity

{

private

PullToRefreshListView

pullToRefreshListView;

//adapter的數(shù)據(jù)源

private

List<String>

numList=new

ArrayList<String>();

private

ArrayAdapter<String>

arrayAdapter;

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

pullToRefreshListView=(PullToRefreshListView)

findViewById(R.id.pull_to_refresh_listview);

//初始化數(shù)據(jù)

for(int

x=0;x<18;x++){

numList.add(""+x);

}

arrayAdapter

=

new

ArrayAdapter<String>(this,

R.layout.item_listview,R.id.textview,numList);

pullToRefreshListView.setAdapter(arrayAdapter);

//設(shè)定刷新監(jiān)聽

pullToRefreshListView.setOnRefreshListener(new

OnRefreshListener<ListView>()

{

@Override

public

void

onRefresh(PullToRefreshBase<ListView>

refreshView)

{

String

label

=

DateUtils.formatDateTime(getApplicationContext(),

System.currentTimeMillis(),

DateUtils.FORMAT_SHOW_TIME

|

DateUtils.FORMAT_SHOW_DATE

|

DateUtils.FORMAT_ABBREV_ALL);

//

顯示最后更新的時間

refreshView.getLoadingLayoutProxy()

.setLastUpdatedLabel(label);

//代表下拉刷新

if(refreshView.getHeaderLayout().isShown()){

new

Thread(){

public

void

run()

{

try

{

sleep(1000);

handler.sendEmptyMessage(99);

}

catch

(InterruptedException

e)

{

e.printStackTrace();

}

};

}.start();

}

//代表下拉刷新

if(refreshView.getFooterLayout().isShown()){

new

Thread(){

public

void

run()

{

try

{

sleep(1000);

handler.sendEmptyMessage(98);

}

catch

(InterruptedException

e)

{

e.printStackTrace();

}

};

}.start();

}

}

});

}

private

Handler

handler=new

Handler(){

public

void

handleMessage(android.os.Message

msg)

{

if(msg.what==99){

numList.add(0,

"英雄聯(lián)盟");

arrayAdapter.notifyDataSetChanged();

//關(guān)閉刷新的動畫

pullToRefreshListView.onRefreshComplete();

}