一个方便扩展的下拉刷新和上拉加载的库，支持xml中配置全局默认的HeaderView和FooterView，提供拖动回调监听，获取滚动距离后方便扩展各种加载效果
支持覆盖的默认配置：
- strings
<string name="lib_ptr_state_pull_to_refresh_header">下拉刷新</string>
<string name="lib_ptr_state_pull_to_refresh_footer">上拉加载</string>
<string name="lib_ptr_state_release_to_refresh_header">松开刷新</string>
<string name="lib_ptr_state_release_to_refresh_footer">松开加载</string>
<string name="lib_ptr_state_refreshing_header">刷新中...</string>
<string name="lib_ptr_state_refreshing_footer">加载中...</string>
<string name="lib_ptr_state_refreshing_success_header">刷新成功</string>
<string name="lib_ptr_state_refreshing_success_footer">加载成功</string>
<string name="lib_ptr_state_refreshing_failure_header">刷新失败</string>
<string name="lib_ptr_state_refreshing_failure_footer">加载失败</string>
<!-- 指定全局HeaderView类的全名 -->
<string name="lib_ptr_header_class"></string>
<!-- 指定全局FooterView类的全名 -->
<string name="lib_ptr_footer_class"></string>- colors
<!-- 默认的加载view中提示文字的颜色 -->
<color name="lib_ptr_text_loading_info">#888888</color>- dimens
<!-- 默认的加载view中提示文字的大小 -->
<dimen name="lib_ptr_text_loading_info">13sp</dimen>
demo中实现了简单的自定义效果
- 自定义加载view中根据状态变化设置不同的图片
@Override
public void onStateChanged(PullToRefreshView.State newState, PullToRefreshView.State oldState, PullToRefreshView view)
{
switch (newState)
{
case RESET:
case PULL_TO_REFRESH:
case FINISH:
getImageView().setImageResource(R.drawable.ic_pull_refresh_normal);
break;
case RELEASE_TO_REFRESH:
getImageView().setImageResource(R.drawable.ic_pull_refresh_ready);
break;
case REFRESHING:
getImageView().setImageResource(R.drawable.ic_pull_refresh_refreshing);
SDViewUtil.startAnimationDrawable(getImageView().getDrawable());
break;
}
}- 给FPullToRefreshView对象设置加载view
view_pull.setHeaderView(new CustomPullToRefreshLoadingView(this)); //自定义HeaderView
view_pull.setFooterView(new CustomPullToRefreshLoadingView(this)); //自定义FooterView在xml中只能给FPullToRefreshView添加一个child
child可以是RecyclerView,ListView,ScrollView等...
<com.sd.lib.pulltorefresh.FPullToRefreshView
android:id="@+id/view_pull"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--RecyclerView,ListView,ScrollView...-->
</com.sd.lib.pulltorefresh.FPullToRefreshView>view_pull.setDebug(true); //设置调试模式，会打印log
view_pull.setMode(PullToRefreshView.Mode.PULL_BOTH); //刷新模式，详细模式见源码
view_pull.setOverLayMode(false); //设置LoadingView是覆盖模式，还是拖拽模式，默认拖拽模式
view_pull.startRefreshingFromHeader(); //触发下拉刷新，此方法不受模式限制
view_pull.startRefreshingFromFooter(); //触发上拉加载，此方法不受模式限制
view_pull.stopRefreshing(); //停止刷新或者加载
view_pull.stopRefreshingWithResult(true); //停止刷新，刷新结果成功
view_pull.stopRefreshingWithResult(false); //停止刷新，刷新结果失败
view_pull.setComsumeScrollPercent(0.5f); //设置拖动距离消耗比例[0-1]，让拖动具有阻尼感，默认0.5f
view_pull.setDurationShowRefreshResult(600); //设置显示刷新结果的时长，默认600毫秒
view_pull.getScrollDistance(); //获得滚动的距离
view_pull.getDirection(); //获得滚动的方向，FROM_HEADER，FROM_FOOTER，NONE
view_pull.setHeaderView(new CustomPullToRefreshLoadingView(this)); //自定义HeaderView
view_pull.setFooterView(new CustomPullToRefreshLoadingView(this)); //自定义FooterView
view_pull.setOnRefreshCallback(new PullToRefreshView.OnRefreshCallback() //设置触发刷新回调
{
@Override
public void onRefreshingFromHeader(final PullToRefreshView view)
{
//头部刷新回调
}
@Override
public void onRefreshingFromFooter(final PullToRefreshView view)
{
//底部加载回调
}
});
//设置状态变化回调
view_pull.setOnStateChangeCallback(new PullToRefreshView.OnStateChangeCallback()
{
@Override
public void onStateChanged(PullToRefreshView.State newState, PullToRefreshView.State oldState, PullToRefreshView view)
{
//自定义的加载view继承库中的加载view基类后也可以收到此事件，可以根据状态展示不同的ui
}
});
//设置view位置变化回调
view_pull.setOnViewPositionChangeCallback(new PullToRefreshView.OnViewPositionChangeCallback()
{
@Override
public void onViewPositionChanged(PullToRefreshView view)
{
//自定义的加载view继承库中的加载view基类后也可以收到此事件，可以根据状态和滚动距离自定义各种加载ui
}
});public interface PullToRefreshView
{
/**
* 默认的拖动距离消耗比例
*/
float DEFAULT_COMSUME_SCROLL_PERCENT = 0.5f;
/**
* 默认的显示刷新结果的时长（毫秒）
*/
int DEFAULT_DURATION_SHOW_REFRESH_RESULT = 600;
/**
* 设置刷新模式
*
* @param mode
*/
void setMode(Mode mode);
/**
* 设置刷新回调
*
* @param onRefreshCallback
*/
void setOnRefreshCallback(OnRefreshCallback onRefreshCallback);
/**
* 设置状态变化回调
*
* @param onStateChangeCallback
*/
void setOnStateChangeCallback(OnStateChangeCallback onStateChangeCallback);
/**
* 设置view位置变化回调
*
* @param onViewPositionChangeCallback
*/
void setOnViewPositionChangeCallback(OnViewPositionChangeCallback onViewPositionChangeCallback);
/**
* 设置可以触发拖动的条件，设置后当view内部满足拖动，并且此对象也满足条件后才可以触发拖动
*
* @param pullCondition
*/
void setPullCondition(PullCondition pullCondition);
/**
* 设置HeaderView和FooterView是否是覆盖的模式（默认false）
*
* @param overLayMode
*/
void setOverLayMode(boolean overLayMode);
/**
* 是否是覆盖的模式
*
* @return
*/
boolean isOverLayMode();
/**
* 设置拖动的时候要消耗的拖动距离比例，默认{@link #DEFAULT_COMSUME_SCROLL_PERCENT}
*
* @param comsumeScrollPercent [0-1]
*/
void setComsumeScrollPercent(float comsumeScrollPercent);
/**
* 设置显示刷新结果的时长，默认{@link #DEFAULT_DURATION_SHOW_REFRESH_RESULT}
*
* @param durationShowRefreshResult
*/
void setDurationShowRefreshResult(int durationShowRefreshResult);
/**
* 设置HeaderView处处于刷新状态
*/
void startRefreshingFromHeader();
/**
* 设置Foot而View处处于刷新状态
*/
void startRefreshingFromFooter();
/**
* 停止刷新
*/
void stopRefreshing();
/**
* 停止刷新并展示刷新结果，当状态处于刷新中的时候此方法调用才有效
*
* @param success true-刷新成功，false-刷新失败
*/
void stopRefreshingWithResult(boolean success);
/**
* 是否处于刷新中
*
* @return
*/
boolean isRefreshing();
/**
* 返回当前的状态
*
* @return
*/
State getState();
/**
* 返回当前的刷新模式
*
* @return
*/
Mode getMode();
/**
* 返回HeaderView
*
* @return
*/
LoadingView getHeaderView();
/**
* 设置HeaderView
*
* @param headerView
*/
void setHeaderView(LoadingView headerView);
/**
* 返回FooterView
*
* @return
*/
LoadingView getFooterView();
/**
* 设置FooterView
*
* @param footerView
*/
void setFooterView(LoadingView footerView);
/**
* 返回要支持刷新的view
*
* @return
*/
View getRefreshView();
/**
* 返回当前拖动方向
*
* @return
*/
Direction getDirection();
/**
* 返回滚动的距离
*
* @return
*/
int getScrollDistance();
enum State
{
/**
* 重置
*/
RESET,
/**
* 下拉刷新
*/
PULL_TO_REFRESH,
/**
* 松开刷新
*/
RELEASE_TO_REFRESH,
/**
* 刷新中
*/
REFRESHING,
/**
* 刷新结果，成功
*/
REFRESHING_SUCCESS,
/**
* 刷新结果，失败
*/
REFRESHING_FAILURE,
/**
* 刷新完成
*/
FINISH,
}
enum Direction
{
NONE,
FROM_HEADER,
FROM_FOOTER,
}
enum Mode
{
/**
* 支持上下拉
*/
PULL_BOTH,
/**
* 只支持下拉
*/
PULL_FROM_HEADER,
/**
* 只支持上拉
*/
PULL_FROM_FOOTER,
/**
* 不支持上下拉
*/
PULL_DISABLE,
}
interface OnStateChangeCallback
{
/**
* 状态变化回调
*
* @param newState
* @param oldState
* @param view
*/
void onStateChanged(State newState, State oldState, PullToRefreshView view);
}
interface OnRefreshCallback
{
/**
* 下拉触发刷新回调
*
* @param view
*/
void onRefreshingFromHeader(PullToRefreshView view);
/**
* 上拉触发刷新回调
*
* @param view
*/
void onRefreshingFromFooter(PullToRefreshView view);
}
interface OnViewPositionChangeCallback
{
/**
* view位置变化回调
*
* @param view
*/
void onViewPositionChanged(PullToRefreshView view);
}
interface PullCondition
{
/**
* 是否可以从Header处触发拖动
*
* @param view
* @return
*/
boolean canPullFromHeader(PullToRefreshView view);
/**
* 是否可以从Footer处触发拖动
*
* @param view
* @return
*/
boolean canPullFromFooter(PullToRefreshView view);
}
}