BaseLoadDataForNetFragment

/** * Fragment 加载网络请求 */public abstract class BaseLoadDataForNetFragment extends Fragment { ???// 视图是否初始化完成 ???protected boolean isViewInitiated; ???// 界面是否可见 ???protected boolean isVisibleToUser; ???// 数据是否加载 ???protected boolean isDataInitiated; ???@Override ???public void onActivityCreated(Bundle savedInstanceState) { ???????super.onActivityCreated(savedInstanceState); ???????WLog.d("onActivityCreated"); ???????isViewInitiated = true; ???????prepareFetchData(); ???} ???@Override ???public void setUserVisibleHint(boolean isVisibleToUser) { ???????super.setUserVisibleHint(isVisibleToUser); ???????WLog.d("setUserVisibleHint:" + isVisibleToUser); ???????this.isVisibleToUser = isVisibleToUser; ???????prepareFetchData(); ???} ???private boolean prepareFetchData() { ???????WLog.d("prepareFetchData"); ???????return prepareFetchData(false); ???} ???/** ????* 设置true，可强制刷新界面 ????* ????* @param forceUpdate 是否强制刷新界面 ????* @return ????*/ ???protected boolean prepareFetchData(boolean forceUpdate) { ???????if (isVisibleToUser && isViewInitiated && (!isDataInitiated || forceUpdate)) { ???????????fetchDataForNet(); ???????????isDataInitiated = true; ???????????return true; ???????} ???????return false; ???} ???/** ????* 刷新数据，网络刷新数据 ????*/ ???public abstract void fetchDataForNet();