Java 如何在片段中使用setMenuVisibility?
我有一个滑动选项卡式布局,有七个片段。我正在另一个活动中保存我的事件,并在片段中从数据库检索数据并创建视图 现在,当我在addevent活动中保存数据并完成该活动并返回fragment时,事件并没有被创建。我正在使用setMenuVisibility函数来显示此事件。但当我调试时,setMenuVisibility在我从活动返回时从未运行 这里怎么了?当我从活动返回时,如何在片段上显示事件 片段代码:Java 如何在片段中使用setMenuVisibility?,java,android,android-fragments,android-activity,Java,Android,Android Fragments,Android Activity,我有一个滑动选项卡式布局,有七个片段。我正在另一个活动中保存我的事件,并在片段中从数据库检索数据并创建视图 现在,当我在addevent活动中保存数据并完成该活动并返回fragment时,事件并没有被创建。我正在使用setMenuVisibility函数来显示此事件。但当我调试时,setMenuVisibility在我从活动返回时从未运行 这里怎么了?当我从活动返回时,如何在片段上显示事件 片段代码: public class Mon extends Fragment { privat
public class Mon extends Fragment {
private FrameLayout fab;
private EventTableHelper mDb;
private Intent i;
private ViewGroup dayplanView;
private int minutesFrom,minutesTo;
private List<EventData> events;
private List<View> list;
private EventData e;
private LayoutInflater inflater;
public boolean editMode;
private RelativeLayout container;
RelativeLayout parent;
View eventView;
private boolean mCheckFragment;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
inflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_mon, container, false);
list = new ArrayList<View>();
dayplanView = (ViewGroup) view.findViewById(R.id.hoursRelativeLayout);
showEvents();
mCheckFragment = true;
return view;
}
private void createEvent(LayoutInflater inflater, ViewGroup dayplanView, int fromMinutes, int toMinutes, String title,String location,final int id) {
eventView = inflater.inflate(R.layout.event_view, dayplanView, false);
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) eventView.getLayoutParams();
container = (RelativeLayout) eventView.findViewById(R.id.container);
TextView tvTitle = (TextView) eventView.findViewById(R.id.textViewTitle);
list.add(eventView);
if (tvTitle.getParent() != null)
((ViewGroup) tvTitle.getParent()).removeView(tvTitle);
if(location.equals(""))
{
tvTitle.setText("Event : " + title);
}
else
{
tvTitle.setText("Event : " + title + " (At : " + location +")");
}
int distance = (toMinutes - fromMinutes);
layoutParams.topMargin = dpToPixels(fromMinutes + 9);
layoutParams.height = dpToPixels(distance);
eventView.setLayoutParams(layoutParams);
dayplanView.addView(eventView);
container.addView(tvTitle);
eventView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
i = new Intent(getActivity(), AddEventActivity.class);
editMode = true;
i.putExtra("EditMode", editMode);
i.putExtra("id", id);
startActivityForResult(i, 1);
}
});
}
@Override
public void setMenuVisibility(final boolean visible) {
super.setMenuVisibility(visible);
if (visible) {
if(mCheckFragment) {
removeView();
showEvents();
Toast.makeText(getActivity(), "Monday", Toast.LENGTH_SHORT).show();
}
// ...
}
}
public void showEvents()
{
mDb = new EventTableHelper(getActivity());
events = mDb.getAllEvents("Mon");
for (EventData eventData : events) {
int id = eventData.getId();
String datefrom = eventData.getFromDate();
if (datefrom != null) {
String[] times = datefrom.substring(11, 16).split(":");
minutesFrom = Integer.parseInt(times[0]) * 60 + Integer.parseInt(times[1]);
}
String title = eventData.getTitle();
String location = eventData.getLocation();
String dateTo = eventData.getToDate();
if (dateTo != null) {
//times = dateTo.substring(11,16).split(":");
String[] times1 = dateTo.substring(11, 16).split(":");
minutesTo = Integer.parseInt(times1[0]) * 60 + Integer.parseInt(times1[1]);
}
createEvent(inflater, dayplanView, minutesFrom, minutesTo, title, location, id);
id++;
}
}
public void removeView()
{
for(int i=0; i<list.size(); i++)
{
View view = (View)list.get(i);
dayplanView.removeView(view);
}
}
private int dpToPixels(int dp) {
return (int) (dp * getResources().getDisplayMetrics().density);
}
}
公共类Mon扩展片段{
私有框架布局晶圆厂;
私人助理mDb;
私人意图一;
私有视图组dayplanView;
私有int minutesFrom,minutesTo;
私人列表活动;
私人名单;
私有事件数据e;
私人充气机;
公共布尔编辑模式;
私有相对论容器;
相对年轻父母;
查看事件视图;
私有布尔mCheckFragment;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
充气器=(LayoutInflater)getActivity().getSystemService(Context.LAYOUT\u充气器\u SERVICE);
}
@凌驾
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
视图=充气机。充气(R.layout.fragment\u mon,容器,false);
列表=新的ArrayList();
dayplanView=(ViewGroup)view.findViewById(R.id.hoursRelativeLayout);
showEvents();
mCheckFragment=true;
返回视图;
}
private void createEvent(Layoutin Flater inflater、视图组dayplanView、int fromMinutes、int toMinutes、字符串标题、字符串位置、最终int id){
事件视图=充气机。充气(R.layout.event\u视图,dayplanView,false);
RelativeLayout.LayoutParams LayoutParams=(RelativeLayout.LayoutParams)eventView.getLayoutParams();
container=(RelativeLayout)eventView.findViewById(R.id.container);
TextView tvTitle=(TextView)eventView.findViewById(R.id.textViewTitle);
list.add(eventView);
if(tvTitle.getParent()!=null)
((ViewGroup)tvTitle.getParent()).removeView(tvTitle);
if(位置等于(“”)
{
tvTitle.setText(“事件:+title”);
}
其他的
{
tvTitle.setText(“事件:+title+”(在:+location+));
}
int距离=(toMinutes-fromMinutes);
layoutParams.topMargin=dpToPixels(从分钟+9开始);
layoutParams.height=dpToPixels(距离);
setLayoutParams(layoutParams);
dayplanView.addView(事件视图);
container.addView(tvTitle);
eventView.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
i=新意图(getActivity(),AddEventActivity.class);
editMode=true;
i、 putExtra(“编辑模式”,编辑模式);
i、 putExtra(“id”,id);
startActivityForResult(i,1);
}
});
}
@凌驾
public void setMenuVisibility(最终布尔值可见){
超级设置可视性(可见);
如果(可见){
if(mCheckFragment){
removeView();
showEvents();
Toast.makeText(getActivity(),“Monday”,Toast.LENGTH_SHORT.show();
}
// ...
}
}
公共活动
{
mDb=新的EventTableHelper(getActivity());
事件=mDb.getAllEvents(“Mon”);
for(EventData事件数据:事件){
int id=eventData.getId();
字符串datefrom=eventData.getFromDate();
if(datefrom!=null){
String[]times=datefrom.substring(11,16).split(“:”);
minutesFrom=Integer.parseInt(乘以[0])*60+Integer.parseInt(乘以[1]);
}
字符串title=eventData.getTitle();
字符串位置=eventData.getLocation();
字符串dateTo=eventData.getToDate();
if(dateTo!=null){
//times=dateTo.substring(11,16).split(“:”);
字符串[]times1=dateTo.substring(11,16).split(“:”);
minutesTo=Integer.parseInt(times1[0])*60+Integer.parseInt(times1[1]);
}
createEvent(充气机、dayplanView、minutesFrom、minutesTo、标题、位置、id);
id++;
}
}
public void removeView()
{
对于(int i=0;i