d.接下来就是主页面的代码了
package com.example.toolbox.upFloat.activity;
import java.util.ArrayList;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.example.toolbox.R;
import com.example.toolbox.upFloat.PullToRefreshBase;
import com.example.toolbox.upFloat.PullToRefreshBase.OnRefreshListener2;
import com.example.toolbox.upFloat.PullToRefreshListView;
/**
*
*
* @author sunyoujun
*
*/
public class UpFloatFirstActivity extends ActionBarActivity implements OnClickListener {
public static final int TYPE_TAB_1 = 1;
public static final int TYPE_TBA_2 = 2;
private int tab2Pos = 0;
private int tab2OffsetY = 0;
private int tab1Pos = 0;
private int tab1OffsetY = 0;
private ArrayList<String> item = new ArrayList<String>();
private ArrayList<String> item1 = new ArrayList<String>();
private ArrayList<String> item2 = new ArrayList<String>();
protected PullToRefreshListView listView;
private LinearLayout titleView;
private LayoutInflater infater;
private LinearLayout titleTab;
private LinearLayout titleFloatTab;
private TextView latestTv;
private TextView latestFloatTv;
private TextView hotTv;
private TextView hotFloatTv;
private int currentType = TYPE_TAB_1;
private ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.up_float_first_activity);
findViews();
setViewsListener();
updateTabSelectState();
initData();
initListView();
}
private void findViews() {
listView = (PullToRefreshListView) findViewById(R.id.up_float_listview);
titleFloatTab = (LinearLayout) findViewById(R.id.up_float_tab_root);
latestFloatTv = (TextView) titleFloatTab.findViewById(R.id.up_float_tab2);
hotFloatTv = (TextView) titleFloatTab.findViewById(R.id.up_fload_tab1);
infater = LayoutInflater.from(this);
titleView = (LinearLayout) infater.inflate(R.layout.up_float_common_layout, null);
titleTab = (LinearLayout) infater.inflate(R.layout.up_float_tab_layout, null);
latestTv = (TextView) titleTab.findViewById(R.id.up_float_tab2);
hotTv = (TextView) titleTab.findViewById(R.id.up_fload_tab1);
}
private void setViewsListener() {
latestTv.setOnClickListener(this);
hotTv.setOnClickListener(this);
latestFloatTv.setOnClickListener(this);
hotFloatTv.setOnClickListener(this);
updateTabSelectState();
}
/**
* 更新tab栏选中状态
*/
private void updateTabSelectState() {
boolean isTab1 = (currentType == TYPE_TAB_1);
hotTv.setSelected(isTab1);
hotFloatTv.setSelected(isTab1);
latestTv.setSelected(!isTab1);
latestFloatTv.setSelected(!isTab1);
}
private void initData() {
for (int i = 1; i <= 50; i++) {
item1.add("tab1-- item ---" + i);
item2.add("tab2-- item ---" + i);
}
}
private void initListView() {
setListViewListener();
listViewAddHeader();
listViewLoadData();
}
private void setListViewListener() {
listView.setOnRefreshListener(new OnRefreshListener2<ListView>() {
@Override
public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
// loadNews();
}
@Override
public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
// loadOlds();
}
});
listView.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (firstVisibleItem < 2) {// 悬浮tab出现时机，listview含有三个header
titleFloatTab.setVisibility(View.GONE);
} else
titleFloatTab.setVisibility(View.VISIBLE);
;
}
});
}
private void listViewAddHeader() {
listView.getRefreshableView().addHeaderView(titleView);
listView.getRefreshableView().addHeaderView(titleTab);
}
protected void listViewLoadData() {
item.clear();
item.addAll(item1);
adapter = new ArrayAdapter<String>(this, R.layout.list_item, android.R.id.text1, item);
listView.setAdapter(adapter);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.up_fload_tab1:
switchTabtList(true);
break;
case R.id.up_float_tab2:
switchTabtList(false);
break;
default:
break;
}
}
private void switchTabtList(boolean isTab1) {
if (isTab1) {
if (currentType == TYPE_TAB_1) {
return;// 说明点击的是相同的活动列表，不用改变
} else {// tab2 switch tab1
tab2Pos = listView.getRefreshableView().getFirstVisiblePosition();
tab2OffsetY = getOffsetY();
currentType = TYPE_TAB_1;
item2.clear();
item2.addAll(item);
item.clear();
item.addAll(item1);
}
} else {
if (currentType == TYPE_TBA_2) {
return;
} else {// tab1 switch tab2
tab1Pos = listView.getRefreshableView().getFirstVisiblePosition();
tab1OffsetY = getOffsetY();
currentType = TYPE_TBA_2;
item1.clear();
item1.addAll(item);
item.clear();
item.addAll(item2);
}
}
updateTabSelectState();
relocationLastPos();
}
private int getOffsetY(){
View view = listView.getRefreshableView().getChildAt(0);
return view != null ? view.getTop() : 0;
}
/**
* 重新定位到上次的位置
*/
private void relocationLastPos() {
if (adapter != null) {
adapter.notifyDataSetChanged();
}
if (currentType == TYPE_TAB_1) {
listView.post(new Runnable() {
@Override
public void run() {
listView.getRefreshableView().setSelectionFromTop(tab1Pos, tab1OffsetY);
}
});
} else {
listView.post(new Runnable() {
@Override
public void run() {
listView.getRefreshableView().setSelectionFromTop(tab2Pos, tab2OffsetY);
}
});
}
}
}
