Xlistview刷新
Posted 总有奸臣想害朕
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1、在自己的项目中按以往的方法写listview、grilview的布局、适配器、以及界面显示内容 2、在项目中引入第三方类库(这里以listview为例) 3、建议为该类库单独建立一个包。 4、导入如图所示的类到自己的项目中:
5、导入如图所示的类到自己的项目中,注:标号1必倒, 标号2,当我们是listview时为pullableListView; 当我们是gridview时为pullablegridview,以此类推
6、导入drawable下的内容:
7、导入anim下的文件
8、导入values下的文件,注:需要将strings.xml下的除第一条外的文件复制到自己的string.xml文件中
9、导入layout下的最后两个文件
10、至此需要导入的类库完毕,打开报错的代码,进行改正(change、更改R包); 11、修改xml中的文件,如图
12、mainactivty的java代码中的修改
public class MainActivity extends Activity {
int page = 1;
private PullableListView lv;
private Base ba;
private List<Mydata> list = new ArrayList<Mydata>();
private String url = "http://api.expoon.com/AppNews/getNewsList/type/1/p/";
// 创建handler对象
Handler h = new Handler() {
@Override
public void handleMessage(Message msg) {
String result = msg.obj.toString();
Gson g = new Gson();
MySupper ms = g.fromJson(result, MySupper.class);
ArrayList<Mydata> data = ms.getData();
if (page==1) {
list.clear();
}
Log.e("111111111111", "11111111111111111111111111111");
list.addAll(data);
update();
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 设置隐藏标题
requestWindowFeature(Window.FEATURE_NO_TITLE);
// 加载xml文件
setContentView(R.layout.activity_main);
PullToRefreshLayout layout = (PullToRefreshLayout) findViewById(R.id.layout);
lv = (PullableListView) findViewById(R.id.list);
setJson();
layout.setOnRefreshListener(new OnRefreshListener() {
@Override
public void onRefresh(final PullToRefreshLayout pullToRefreshLayout) {
h.postDelayed(new Runnable() {
@Override
public void run() {
page = 1;
setJson();
// 千万别忘了告诉控件刷新完毕了哦!
pullToRefreshLayout
.refreshFinish(PullToRefreshLayout.SUCCEED);
}
}, 1000);
}
@Override
public void onLoadMore(final PullToRefreshLayout pullToRefreshLayout) {
h.postDelayed(new Runnable() {
@Override
public void run() {
page++;
setJson();
// 千万别忘了告诉控件加载完毕了哦!
pullToRefreshLayout
.loadmoreFinish(PullToRefreshLayout.SUCCEED);
}
}, 1000);
}
});
}
public void setJson() {
new Thread() {
public void run() {
try {
String string = MyHttpGet.getjson(url, page);
Message message = h.obtainMessage();
message.obj = string;
h.sendMessage(message);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();
}
// 创建更新适配器的方法
public void update() {
// 判断ba是否为空
if (ba == null) {
ba = new Base(MainActivity.this, list);
// 为lv添加适配器
lv.setAdapter(ba);
} else {
// 刷新适配器
ba.UpDataAdapter(list);
}
}
}
13、适配器要写刷新适配器的方法
//定义更新适配器的方法
public void UpDataAdapter(List<Mydata> list){
this.list=list;
this.notifyDataSetChanged();
}
14、如果页面是用fragment填充的viewpager,则在viewpager页面加载布局前写一个判断,以防止fragmen被销毁而导致的数据加载不出来:
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// 填充布局
if (v==null) {
v = View.inflate(getActivity(), R.layout.tuijian, null);
layout = (PullToRefreshLayout) v
.findViewById(R.id.layout);
}
ViewGroup mParent = (ViewGroup) v.getParent();
if(mParent!=null){
mParent.removeView(v);
}
lv = (PullableListView) v.findViewById(R.id.listview);
Pullable.java;
,直接沾
package com.jingchen.pulltorefresh.pullableview; public interface Pullable { /** * 判断是否可以下拉,如果不需要下拉功能可以直接return false * * @return true如果可以下拉否则返回false */ boolean canPullDown(); /** * 判断是否可以上拉,如果不需要上拉功能可以直接return false * * @return true如果可以上拉否则返回false */ boolean canPullUp(); }
PullableListView.java
,直接沾
package com.jingchen.pulltorefresh.pullableview;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.ListView;
public class PullableListView extends ListView implements Pullable
{
public PullableListView(Context context)
{
super(context);
}
public PullableListView(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public PullableListView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
}
@Override
public boolean canPullDown()
{
if (getCount() == 0)
{
// 没有item的时候也可以下拉刷新
return true;
} else if (getFirstVisiblePosition() == 0
&& getChildAt(0).getTop() >= 0)
{
// 滑到ListView的顶部了
return true;
} else
return false;
}
@Override
public boolean canPullUp()
{
if (getCount() == 0)
{
// 没有item的时候也可以上拉加载
return true;
} else if (getLastVisiblePosition() == (getCount() - 1))
{
// 滑到底部了
if (getChildAt(getLastVisiblePosition() - getFirstVisiblePosition()) != null
&& getChildAt(
getLastVisiblePosition()
- getFirstVisiblePosition()).getBottom() <= getMeasuredHeight())
return true;
}
return false;
}
}
PullToRefreshLayout.java ,直接沾
package com.jingchen.pulltorefresh; import java.util.Timer; import java.util.TimerTask; import android.app.Activity; import android.content.Context; import android.os.AsyncTask; import android.os.Handler; import android.os.Message; import android.util.AttributeSet; import android.util.Log; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.animation.AnimationUtils; import android.view.animation.LinearInterpolator; import android.view.animation.RotateAnimation; import android.widget.RelativeLayout; import android.widget.TextView; import com.jingchen.pulltorefresh.pullableview.Pullable; /** * 自定义的布局,用来管理三个子控件,其中一个是下拉头,一个是包含内容的pullableView(可以是实现Pullable接口的的任何View), * 还有一个上拉头,更多详解见博客http://blog.csdn.net/zhongkejingwang/article/details/38868463 * * @author 陈靖 */ public class PullToRefreshLayout extends RelativeLayout { public static final String TAG = "PullToRefreshLayout"; // 初始状态 public static final int INIT = 0; // 释放刷新 public static final int RELEASE_TO_REFRESH = 1; // 正在刷新 public static final int REFRESHING = 2; // 释放加载 public static final int RELEASE_TO_LOAD = 3; // 正在加载 public static final int LOADING = 4; // 操作完毕 public static final int DONE = 5; // 当前状态 private int state = INIT; // 刷新回调接口 private OnRefreshListener mListener; // 刷新成功 public static final int SUCCEED = 0; // 刷新失败 public static final int FAIL = 1; // 按下Y坐标,上一个事件点Y坐标 private float downY, lastY; // 下拉的距离。注意:pullDownY和pullUpY不可能同时不为0 public float pullDownY = 0; // 上拉的距离 private float pullUpY = 0; // 释放刷新的距离 private float refreshDist = 200; // 释放加载的距离 private float loadmoreDist = 200; private MyTimer timer; // 回滚速度 public float MOVE_SPEED = 8; // 第一次执行布局 private boolean isLayout = false; // 在刷新过程中滑动操作 private boolean isTouch = false; // 手指滑动距离与下拉头的滑动距离比,中间会随正切函数变化 private float radio = 2; // 下拉箭头的转180°动画 private RotateAnimation rotateAnimation; // 均匀旋转动画 private RotateAnimation refreshingAnimation; // 下拉头 private View refreshView; // 下拉的箭头 private View pullView; // 正在刷新的图标 private View refreshingView; // 刷新结果图标 private View refreshStateImageView; // 刷新结果:成功或失败 private TextView refreshStateTextView; // 上拉头 private View loadmoreView; // 上拉的箭头 private View pullUpView; // 正在加载的图标 private View loadingView; // 加载结果图标 private View loadStateImageView; // 加载结果:成功或失败 private TextView loadStateTextView; // 实现了Pullable接口的View private View pullableView; // 过滤多点触碰 private int mEvents; // 这两个变量用来控制pull的方向,如果不加控制,当情况满足可上拉又可下拉时没法下拉 private boolean canPullDown = true; private boolean canPullUp = true; private Context mContext; /** * 执行自动回滚的handler */ Handler updateHandler = new Handler() { @Override public void handleMessage(Message msg) { // 回弹速度随下拉距离moveDeltaY增大而增大 MOVE_SPEED = (float) (8 + 5 * Math.tan(Math.PI / 2 / getMeasuredHeight() * (pullDownY + Math.abs(pullUpY)))); if (!isTouch) { // 正在刷新,且没有往上推的话则悬停,显示"正在刷新..." if (state == REFRESHING && pullDownY <= refreshDist) { pullDownY = refreshDist; timer.cancel(); } else if (state == LOADING && -pullUpY <= loadmoreDist) { pullUpY = -loadmoreDist; timer.cancel(); } } if (pullDownY > 0) pullDownY -= MOVE_SPEED; else if (pullUpY < 0) pullUpY += MOVE_SPEED; if (pullDownY < 0) { // 已完成回弹 pullDownY = 0; pullView.clearAnimation(); // 隐藏下拉头时有可能还在刷新,只有当前状态不是正在刷新时才改变状态 if (state != REFRESHING && state != LOADING) changeState(INIT); timer.cancel(); requestLayout(); } if (pullUpY > 0) { // 已完成回弹 pullUpY = 0; pullUpView.clearAnimation(); // 隐藏上拉头时有可能还在刷新,只有当前状态不是正在刷新时才改变状态 if (state != REFRESHING && state != LOADING) changeState(INIT); timer.cancel(); requestLayout(); } Log.d("handle", "handle"); // 刷新布局,会自动调用onLayout requestLayout(); // 没有拖拉或者回弹完成 if (pullDownY + Math.abs(pullUpY) == 0) timer.cancel(); } }; public void setOnRefreshListener(OnRefreshListener listener) { mListener = listener; } public PullToRefreshLayout(Context context) { super(context); initView(context); } public PullToRefreshLayout(Context context, AttributeSet attrs) { super(context, attrs); initView(context); } public PullToRefreshLayout(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); initView(context); } private void initView(Context context) { mContext = context; timer = new MyTimer(updateHandler); rotateAnimation = (RotateAnimation) AnimationUtils.loadAnimation( context, R.anim.reverse_anim); refreshingAnimation = (RotateAnimation) AnimationUtils.loadAnimation( context, R.anim.rotating); // 添加匀速转动动画 LinearInterpolator lir = new LinearInterpolator(); rotateAnimation.setInterpolator(lir); refreshingAnimation.setInterpolator(lir); } private void hide() { timer.schedule(5); } /** * 完成刷新操作,显示刷新结果。注意:刷新完成后一定要调用这个方法 */ /** * @param refreshResult * PullToRefreshLayout.SUCCEED代表成功,PullToRefreshLayout.FAIL代表失败 */ public void refreshFinish(int refreshResult) { refreshingView.clearAnimation(); refreshingView.setVisibility(View.GONE); switch (refreshResult) { case SUCCEED: // 刷新成功 refreshStateImageView.setVisibility(View.VISIBLE); refreshStateTextView.setText(R.string.refresh_succeed); refreshStateImageView .setBackgroundResource(R.drawable.refresh_succeed); break; case FAIL: default: // 刷新失败 refreshStateImageView.setVisibility(View.VISIBLE); refreshStateTextView.setText(R.string.refresh_fail); refreshStateImageView .setBackgroundResource(R.drawable.refresh_failed); break; } if (pullDownY > 0) { // 刷新结果停留1秒 new Handler() { @Override public void handleMessage(Message msg) { changeState(DONE); hide(); } }.sendEmptyMessageDelayed(0, 1000); } else { changeState(DONE); hide(); } } /** * 加载完毕,显示加载结果。注意:加载完成后一定要调用这个方法 * * @param refreshResult * PullToRefreshLayout.SUCCEED代表成功,PullToRefreshLayout.FAIL代表失败 */ public void loadmoreFinish(int refreshResult) { loadingView.clearAnimation(); loadingView.setVisibility(View.GONE); switch (refreshResult) { case SUCCEED: // 加载成功 loadStateImageView.setVisibility(View.VISIBLE); loadStateTextView.setText(R.string.load_succeed); loadStateImageView.setBackgroundResource(R.drawable.load_succeed); break; case FAIL: default: // 加载失败 loadStateImageView.setVisibility(View.VISIBLE); loadStateTextView.setText(R.string.load_fail); loadStateImageView.setBackgroundResource(R.drawable.load_failed); break; } if (pullUpY < 0) { // 刷新结果停留1秒 new Handler() { @Override public void handleMessage(Message msg) { changeState(DONE); hide(); } }.sendEmptyMessageDelayed(0, 1000); } else { changeState(DONE); hide(); } } private void changeState(int to) { state = to; switch (state) { case INIT: // 下拉布局初始状态 refreshStateImageView.setVisibility(View.GONE); refreshStateTextView.setText(R.string.pull_to_refresh); pullView.clearAnimation(); pullView.setVisibility(View.VISIBLE); // 上拉布局初始状态 loadStateImageView.setVisibility(View.GONE); loadStateTextView.setText(R.string.pullup_to_load); pullUpView.clearAnimation(); pullUpView.setVisibility(View.VISIBLE); break; case RELEASE_TO_REFRESH: // 释放刷新状态 refreshStateTextView.setText(R.string.release_to_refresh); pullView.startAnimation(rotateAnimation); break; case REFRESHING: // 正在刷新状态 pullView.clearAnimation(); refreshingView.setVisibility(View.VISIBLE); pullView.setVisibility(View.INVISIBLE); refreshingView.startAnimation(refreshingAnimation); refreshStateTextView.setText(R.string.refreshing); break; case RELEASE_TO_LOAD: // 释放加载状态 loadStateTextView.setText(R.string.release_to_load); pullUpView.startAnimation(rotateAnimation); break; case LOADING: // 正在加载状态 pullUpView.clearAnimation(); loadingView.setVisibility(View.VISIBLE); pullUpView.setVisibility(View.INVISIBLE); loadingView.startAnimation(refreshingAnimation); loadStateTextView.setText(R.string.loading); break; case DONE: // 刷新或加载完毕,啥都不做 break; } } /** * 不限制上拉或下拉 */ private void releasePull() { canPullDown = true; canPullUp = true; } /* * (非 Javadoc)由父控件决定是否分发事件,防止事件冲突 * * @see android.view.ViewGroup#dispatchTouchEvent(android.view.MotionEvent) */ @Override public boolean dispatchTouchEvent(MotionEvent ev) { switch (ev.getActionMasked()) { case MotionEvent.ACTION_DOWN: downY = ev.getY(); lastY = downY; timer.cancel(); mEvents = 0; releasePull(); break; case MotionEvent.ACTION_POINTER_DOWN: case MotionEvent.ACTION_POINTER_UP: // 过滤多点触碰 mEvents = -1; break; case MotionEvent.ACTION_MOVE: if (mEvents == 0) { if (pullDownY > 0 || (((Pullable) pullableView).canPullDown() && canPullDown && state != LOADING)) { // 可以下拉,正在加载时不能下拉 // 对实际滑动距离做缩小,造成用力拉的感觉 pullDownY = pullDownY + (ev.getY() - lastY) / radio; if (pullDownY < 0) { pullDownY = 0; canPullDown = false; canPullUp = true; } if (pullDownY > getMeasuredHeight()) pullDownY = getMeasuredHeight(); if (state == REFRESHING) { // 正在刷新的时候触摸移动 isTouch = true; } } else if (pullUpY < 0 || (((Pullable) pullableView).canPullUp() && canPullUp && state != REFRESHING)) { // 可以上拉,正在刷新时不能上拉 pullUpY = pullUpY + (ev.getY() - lastY) / radio; if (pullUpY > 0) { pullUpY = 0; canPullDown = true; canPullUp = false; } if (pullUpY < -getMeasuredHeight()) pullUpY = -getMeasuredHeight(); if (state == LOADING) { // 正在加载的时候触摸移动 isTouch = true; } } else releasePull(); } else mEvents = 0; lastY = ev.getY(); // 根据下拉距离改变比例 radio = (float) (2 + 2 * Math.tan(Math.PI / 2 / getMeasuredHeight() * (pullDownY + Math.abs(pullUpY)))); if (pullDownY > 0 || pullUpY < 0) requestLayout(); if (pullDownY > 0) { if (pullDownY <= refreshDist && (state == RELEASE_TO_REFRESH || state == DONE)) { // 如果下拉距离没达到刷新的距离且当前状态是释放刷新,改变状态为下拉刷新 changeState(INIT); } if (pullDownY >= refreshDist && state == INIT) { // 如果下拉距离达到刷新的距离且当前状态是初始状态刷新,改变状态为释放刷新 changeState(RELEASE_TO_REFRESH); } } else if (pullUpY < 0) { // 下面是判断上拉加载的,同上,注意pullUpY是负值 if (-pullUpY <= loadmoreDist && (state == RELEASE_TO_LOAD || state == DONE)) { changeState(INIT); } // 上拉操作 if (-pullUpY >= loadmoreDist && state == INIT) { changeState(RELEASE_TO_LOAD); } } // 因为刷新和加载操作不能同时进行,所以pullDownY和pullUpY不会同时不为0,因此这里用(pullDownY + // Math.abs(pullUpY))就可以不对当前状态作区分了 if ((pullDownY + Math.abs(pullUpY)) > 8) { // 防止下拉过程中误触发长按事件和点击事件 ev.setAction(MotionEvent.ACTION_CANCEL); } break; case MotionEvent.ACTION_UP: if (pullDownY > refreshDist || -pullUpY > loadmoreDist) // 正在刷新时往下拉(正在加载时往上拉),释放后下拉头(上拉头)不隐藏 { isTouch = false; } if (state == RELEASE_TO_REFRESH) { changeState(REFRESHING); // 刷新操作 if (mListener != null) mListener.onRefresh(this); } else if (state == RELEASE_TO_LOAD) { changeState(LOADING); // 加载操作 if (mListener != null) mListener.onLoadMore(this); } hide(); default: break; } // 事件分发交给父类 super.dispatchTouchEvent(ev); return true; } /** * @author chenjing 自动模拟手指滑动的task * */ private class AutoRefreshAndLoadTask extends AsyncTask<Integer, Float, String> { @Override protected String doInBackground(Integer... params) { while (pullDownY < 4 / 3 * refreshDist) { pullDownY += MOVE_SPEED; publishProgress(pullDownY); try { Thread.sleep(params[0]); } catch (InterruptedException e) { e.printStackTrace(); } } return null; } @Override protected void onPostExecute(String result) { changeState(REFRESHING); // 刷新操作 if (mListener != null) mListener.onRefresh(PullToRefreshLayout.this); hide(); } @Override protected void onProgressUpdate(Float... values) { if (pullDownY > refreshDist) changeState(RELEASE_TO_REFRESH); requestLayout(); } } /** * 自动刷新 */ public void autoRefresh() { AutoRefreshAndLoadTask task = new AutoRefreshAndLoadTask(); task.execute(20); } /** * 自动加载 */ public void autoLoad() { pullUpY = -loadmoreDist; requestLayout(); changeState(LOADING); // 加载操作 if (mListener != null) mListener.onLoadMore(this); } private void initView() { // 初始化下拉布局 pullView = refreshView.findViewById(R.id.pull_icon); refreshStateTextView = (TextView) refreshView .findViewById(R.id.state_tv); refreshingView = refreshView.findViewById(R.id.refreshing_icon); refreshStateImageView = refreshView.findViewById(R.id.state_iv); // 初始化上拉布局 pullUpView = loadmoreView.findViewById(R.id.pullup_icon); loadStateTextView = (TextView) loadmoreView .findViewById(R.id.loadstate_tv); loadingView = loadmoreView.findViewById(R.id.loading_icon); loadStateImageView = loadmoreView.findViewById(R.id.loadstate_iv); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { Log.d("Test", "Test"); if (!isLayout) { // 这里是第一次进来的时候做一些初始化 refreshView = getChildAt(0); pullableView = getChildAt(1); loadmoreView = getChildAt(2); isLayout = true; initView(); refreshDist = ((ViewGroup) refreshView).getChildAt(0) .getMeasuredHeight(); loadmoreDist = ((ViewGroup) loadmoreView).getChildAt(0) .getMeasuredHeight(); } // 改变子控件的布局,这里直接用(pullDownY + pullUpY)作为偏移量,这样就可以不对当前状态作区分 refreshView.layout(0, (int) (pullDownY + pullUpY) - refreshView.getMeasuredHeight(), refreshView.getMeasuredWidth(), (int) (pullDownY + pullUpY)); pullableView.layout(0, (int) (pullDownY + pullUpY), pullableView.getMeasuredWidth(), (int) (pullDownY + pullUpY) + pullableView.getMeasuredHeight()); loadmoreView.layout(0, (int) (pullDownY + pullUpY) + pullableView.getMeasuredHeight(), loadmoreView.getMeasuredWidth(), (int) (pullDownY + pullUpY) + pullableView.getMeasuredHeight() + loadmoreView.getMeasuredHeight()); } class MyTimer { private Handler handler; private Timer timer; private MyTask mTask; public MyTimer(Handler handler) { this.handler = handler; timer = new Timer(); } public void schedule(long period) { if (mTask != null) { mTask.cancel(); mTask = null; } mTask = new MyTask(handler); timer.schedule(mTask, 0, period); } public void cancel() { if (mTask != null) { mTask.cancel(); mTask = null; } } class MyTask extends TimerTask { private Handler handler; public MyTask(Handler handler) { this.handler = handler; } @Override public void run() { handler.obtainMessage().sendToTarget(); } } } /** * 刷新加载回调接口 * * @author chenjing * */ public interface OnRefreshListener { /** * 刷新操作 */ void onRefresh(PullToRefreshLayout pullToRefreshLayout); /** * 加载操作 */ void onLoadMore(PullToRefreshLayout pullToRefreshLayout); } }
anima下的两个文件
reverse_anim.xml
<?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="100" android:fillAfter="true" android:fromDegrees="0" android:pivotX="50%" android:pivotY="50%" android:repeatCount="0" android:toDegrees="180" > </rotate>
rotating.xml
<?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1500" android:fillAfter="true" android:fromDegrees="0" android:pivotX="50%" android:pivotY="50%" android:repeatCount="-1" android:toDegrees="360" > </rotate>
load_more.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/loadmore_view" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/gray" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:paddingBottom="20dp" android:paddingTop="20dp" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" > <ImageView android:id="@+id/pullup_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="60dp" android:background="@drawable/pullup_icon_big" /> <ImageView android:id="@+id/loading_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="60dp" android:background="@drawable/loading" android:visibility="gone" /> <TextView android:id="@+id/loadstate_tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="@string/pullup_to_load" android:textColor="@color/black" android:textSize="16sp" /> <ImageView android:id="@+id/loadstate_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginRight="8dp" android:layout_toLeftOf="@id/loadstate_tv" android:visibility="gone" /> </RelativeLayout> </RelativeLayout> </RelativeLayout>
refresh_head.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/head_view" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/light_blue" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:paddingBottom="20dp" android:paddingTop="20dp" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" > <ImageView android:id="@+id/pull_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="60dp" android:background="@drawable/pull_icon_big" /> <ImageView android:id="@+id/refreshing_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="60dp" android:background="@drawable/refreshing" android:visibility="gone" /> <TextView android:id="@+id/state_tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="@string/pull_to_refresh" android:textColor="@color/white" android:textSize="16sp" /> <ImageView android:id="@+id/state_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginRight="8dp" android:layout_toLeftOf="@id/state_tv" android:visibility="gone" /> </RelativeLayout> </RelativeLayout> </RelativeLayout>
color.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="white">#FFFFFF</color> <color name="black">#000000</color> <color name="gray">#aaaaaa</color> <color name="light_blue">#6593cb</color> </resources>
Values 下的
<string name="app_name">ListView网络上拉下拉</string> <string name="hello_world">Hello world!</string> <string name="menu_settings">Settings</string> <string name="head">这里是HeadView</string> <string name="pull_to_refresh">下拉刷新</string> <string name="release_to_refresh">释放立即刷新</string> <string name="refreshing">正在刷新...</string> <string name="refresh_succeed">刷新成功</string> <string name="refresh_fail">刷新失败</string> <string name="pullup_to_load">上拉加载更多</string> <string name="release_to_load">释放立即加载</string> <string name="loading">正在加载...</string> <string name="load_succeed">加载成功</string> <string name="load_fail">加载失败</string>
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