androidlistview上拉刷新

㈠ android中怎么实现上拉刷新

这篇文章主要介绍了android实现listview下拉刷新和上拉刷新效果,Android的ListView上拉下拉刷新，原理都一样，在Touch事件中操作header/footer的paddingTop属性，需要的朋友可以参考下

java">{

privatestaticfinalStringTAG=PullToLoadListView.class.getSimpleName();

privatestaticfinalintSTATE_NON=0;
privatestaticfinalintSTATE_PULL_TO_REFRESH=1;
privatestaticfinalintSTATE_RELEASE_TO_REFRESH=2;
privatestaticfinalintSTATE_REFRESHING=3;

privateintstate;

privateintfirstVisibleItem;
privateintlastVisisibleItem;

privatefloatprevY=0;

privateViewheaderView;
privateViewfooterView;

//headerwidgets
;
;
privateTextViewheaderText;
;
;
//footerwidgets
;
privateTextViewfooterText;

privatebooleanheaderIsHanding=false;
privatebooleanfooterIsHanding=false;

privateintheaderHeight;
privateintfooterHeight;

;

;

;

publicPullToLoadListView(Contextcontext){
super(context);
init(context);
}

publicPullToLoadListView(Contextcontext,AttributeSetattrs){
super(context,attrs);
init(context);
}

privatevoidinit(Contextcontext){
state=STATE_NON;
firstVisibleItem=0;
lastVisisibleItem=0;

LayoutInflaterinflater=LayoutInflater.from(context);
headerView=inflater.inflate(R.layout.view_pull_header,null);
footerView=inflater.inflate(R.layout.view_pull_footer,null);

headerProgressBar=(ProgressBar)headerView.findViewById(R.id.progressbar);
headerImageArrow=(ImageView)headerView.findViewById(R.id.arrow);
headerText=(TextView)headerView.findViewById(R.id.text);
headerArrowAnim=newRotateAnimation(0,-180,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
headerArrowAnim.setDuration(300);
headerArrowAnim.setFillAfter(true);
headerArrowReverseAnim=newRotateAnimation(-180,0,Animation.RELATIVE_TO_SELF,0.5f,Animation.RELATIVE_TO_SELF,0.5f);
headerArrowReverseAnim.setDuration(300);
headerArrowReverseAnim.setFillAfter(true);

footerProgressBar=(ProgressBar)footerView.findViewById(R.id.progressbar);
footerText=(TextView)footerView.findViewById(R.id.text);

measureView(headerView);
measureView(footerView);
headerHeight=headerView.getMeasuredHeight();
footerHeight=footerView.getMeasuredHeight();
headerView.setPadding(0,-1*headerView.getMeasuredHeight(),0,0);
footerView.setPadding(0,-1*footerView.getMeasuredHeight(),0,0);
headerView.invalidate();
footerView.invalidate();
addHeaderView(headerView,null,false);
addFooterView(footerView,null,false);

super.setOnScrollListener(this);
}

privatevoidmeasureView(Viewview){
ViewGroup.LayoutParamslp=view.getLayoutParams();
if(lp==null){
lp=newViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);
}
intchildWidthSpec=ViewGroup.getChildMeasureSpec(0,0,lp.width);
intchildHeightSpec;
if(lp.height>0){
childHeightSpec=MeasureSpec.makeMeasureSpec(0,MeasureSpec.EXACTLY);
}else{
childHeightSpec=MeasureSpec.makeMeasureSpec(0,MeasureSpec.UNSPECIFIED);
}
view.measure(childWidthSpec,childHeightSpec);
}

privatevoidresetHeader(){
//headerView.setPadding(0,-1*headerHeight,0,0);
resetAnim=newResetAnimation(headerView,headerHeight,headerView.getPaddingTop());
resetAnim.start();
}

privatevoidresetFooter(){
resetAnim=newResetAnimation(footerView,footerHeight,footerView.getPaddingTop());
resetAnim.start();
}

(intstate){
if(this.state==state){
return;
}
intprevState=this.state;
this.state=state;

switch(state){
caseSTATE_NON:
headerProgressBar.setVisibility(View.INVISIBLE);
headerImageArrow.setVisibility(View.VISIBLE);
headerImageArrow.clearAnimation();
headerText.setText("PullDownToRefresh");
break;
caseSTATE_PULL_TO_REFRESH:
headerProgressBar.setVisibility(View.INVISIBLE);
headerImageArrow.setVisibility(View.VISIBLE);
headerText.setText("PullDownToRefresh");
if(prevState==STATE_RELEASE_TO_REFRESH){
headerImageArrow.startAnimation(headerArrowReverseAnim);
}else{
headerImageArrow.clearAnimation();
}
break;
caseSTATE_RELEASE_TO_REFRESH:
headerProgressBar.setVisibility(View.INVISIBLE);
headerImageArrow.setVisibility(View.VISIBLE);
headerImageArrow.startAnimation(headerArrowAnim);
headerText.setText("ReleaseToRefresh");
break;
caseSTATE_REFRESHING:
headerProgressBar.setVisibility(View.VISIBLE);
headerImageArrow.setVisibility(View.INVISIBLE);
headerImageArrow.clearAnimation();
headerText.setText("Refreshing");
break;
default:
break;
}
}

(intstate){
if(this.state==state){
return;
}
this.state=state;

switch(state){
caseSTATE_NON:
footerProgressBar.setVisibility(View.INVISIBLE);
footerText.setText("PullUpToRefresh");
break;
caseSTATE_PULL_TO_REFRESH:
footerProgressBar.setVisibility(View.INVISIBLE);
footerText.setText("PullUpToRefresh");
break;
caseSTATE_RELEASE_TO_REFRESH:
footerProgressBar.setVisibility(View.INVISIBLE);
footerText.setText("ReleaseToRefresh");
break;
caseSTATE_REFRESHING:
footerProgressBar.setVisibility(View.VISIBLE);
footerText.setText("Refreshing");
break;
default:
break;
}
}

@Override
publicvoidsetOnScrollListener(OnScrollListenerl){
this.onScrollListener=l;
}

(){
this.onLoadingListener=onLoadingListener;
}

publicvoidloadCompleted(){
if(headerIsHanding){
changeHeaderViewByState(STATE_NON);
resetHeader();
headerIsHanding=false;
}
if(footerIsHanding){
changeFooterViewByState(STATE_NON);
resetFooter();
footerIsHanding=false;
}
}

(MotionEventev){
headerIsHanding=true;
floattempY=ev.getRawY();
floatvector=tempY-prevY;
vector/=2;
prevY=tempY;
if(vector>0){
intnewPadding=(int)(headerView.getPaddingTop()+vector);
newPadding=Math.min(newPadding,headerHeight/2);
headerView.setPadding(0,newPadding,0,0);
if(state!=STATE_REFRESHING){
if(newPadding>0){
changeHeaderViewByState(STATE_RELEASE_TO_REFRESH);
}else{
changeHeaderViewByState(STATE_PULL_TO_REFRESH);
}
}
}else{
if(state==STATE_RELEASE_TO_REFRESH||state==STATE_PULL_TO_REFRESH){
intnewPadding=(int)(headerView.getPaddingTop()+vector);
newPadding=Math.max(newPadding,-1*headerHeight);
headerView.setPadding(0,newPadding,0,0);
if(newPadding<=-1*headerHeight){
changeHeaderViewByState(STATE_NON);
headerIsHanding=false;
}elseif(newPadding<=0){
changeHeaderViewByState(STATE_PULL_TO_REFRESH);
}else{

}
}
}
}

(MotionEventev){
footerIsHanding=true;
floattempY=ev.getRawY();
floatvector=tempY-prevY;
vector/=2;
prevY=tempY;
if(vector<0){
intnewPadding=(int)(footerView.getPaddingTop()-vector);
if(newPadding>0){
newPadding=0;
}
footerView.setPadding(0,newPadding,0,0);
if(state!=STATE_REFRESHING){
if(newPadding<0){
changeFooterViewByState(STATE_PULL_TO_REFRESH);
}else{
changeFooterViewByState(STATE_RELEASE_TO_REFRESH);
}
}
}else{
intnewPadding=(int)(footerView.getPaddingTop()-vector);
newPadding=Math.min(newPadding,footerHeight);
footerView.setPadding(0,newPadding,0,0);
if(newPadding<=-1*footerHeight){
changeFooterViewByState(STATE_NON);
footerIsHanding=false;
}elseif(newPadding<0){
changeFooterViewByState(STATE_PULL_TO_REFRESH);
}
}
}

㈡ android pulltorefresh scrollview下拉刷新上拉加载怎么区分

listView.setMode(PullToRefreshBase.Mode.BOTH);
listView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
@Override
public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
page = 1;
loadData();
}

@Override
public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
page++;
loadData();
}
});

首先要上下拉刷新功能先要设置刷新模式 为BOTH,
然后在设置监听事件，里面有重写的两个方法，一个是下拉的 一个是上啦的，
可以在里面写对应的 事件，比如 你上啦要干些啥，就在onPullUpToRefresh中写即可
手动打字比较类 ，凑合着看吧

㈢ android 怎样在fragment中给listview添加下拉刷新上拉加载

注意事项：
1、XListView因为添加了Header，会导致存储的数据+1，所以赋值时需要position-1。补充：当去掉HeaderView时，position不用-1。
2、提个建议：上拉加载更多，最好在onCreate()中就执行setAdapter，然后不论是空数据、还是有数据，只用更新适配器就行了。
一、XListView
1、下载
gitHub的地址。或者从这儿下。
2、用法
导入图中的me.maxwin.view包
提供了两个接口：
IXListViewListener：触发下拉刷新，上拉加载更多。实现此接口时，onLoadMore()用来上拉加载更多，onRefresh()用来下拉刷新。

㈣ android pulltorefreshlistview设置自动刷新后为什么是上拉加载更多

android 下拉刷机，上拉加载，异步分页加载的源代码已经上传。