我在嵌套片段中实现了上下文操作模式栏。这个片段是视图分页器的一部分,视图分页器也是一个片段和导航抽屉的一部分。
我的问题:如果片段不再集中,我想关闭上下文操作模式栏。因此,如果我在视图寻呼机中滑动,操作模式栏应该关闭。但是如果我使用onPause()
嵌套片段的方法,则不会直接调用该方法。通常它会等到我向前滑动两到三下......这里有一些图片:
在第二张图片中,您可以看到操作模式栏仍然存在。所以我的问题是:如果我离开片段,我应该在哪个方法中调用我的actionModeBar.finish()
方法,直接关闭动作模式栏?
也许片段的代码可以帮助您:
public class EditorFragment extends Fragment {
private static final String KEY_POSITION="position";
ListView listView;
private boolean isMultipleList = false;
private ActionMode acMode;
private int counterChecked = 0;
private ActionMode.Callback modeCallBack = new ActionMode.Callback() {
public boolean onPrepareActionMode(ActionMode mode, Menu menu){
return false;
}
public void onDestroyActionMode(ActionMode mode) {
listView.clearChoices();
for (int i = 0; i < listView.getChildCount(); i++)
listView.setItemChecked(i, false);
listView.post(new Runnable() {
@Override
public void run() {
listView.setChoiceMode(ListView.CHOICE_MODE_NONE);
}
});
isMultipleList = false;
counterChecked = 0;
mode = null;
}
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
mode.setTitle("1 Aufgabe");
mode.getMenuInflater().inflate(R.menu.actionmode, menu);
return true;
}
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.actionmode_delete:
int choiceCount = listView.getCount();
SparseBooleanArray spBoolArray = listView.getCheckedItemPositions();
DBAufgaben db = new DBAufgaben(MainActivity.getMContext());
db.open();
for (int i = 0; i < choiceCount; i++) {
if(spBoolArray.get(i)){
db.deletContact(listView.getItemIdAtPosition(i));
}
}
Cursor cursor = db.getAllRecords();
AdapterEingang adapterE = new AdapterEingang(MainActivity.getMContext(), cursor, 0);
listView.setAdapter(adapterE);
db.close();
mode.finish();
break;
case R.id.actionmode_cancel:
mode.finish();
break;
}
return false;
}
};
//......//
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = null;
int position = getArguments().getInt(KEY_POSITION, -1);
switch(position){
case 0:
rootView = inflater.inflate(R.layout.pager_list, null);
listView = (ListView) rootView.findViewById(R.id.pager_list);
Context context = MainActivity.getMContext();
DBAufgaben db = new DBAufgaben(context);
db.open();
Cursor cursor = db.getAllRecords();
AdapterEingang adapterE = new AdapterEingang(context, cursor, 0);
listView.setAdapter(adapterE);
db.close();
listView.setOnItemLongClickListener(new OnItemLongClickListener(){
@Override
public boolean onItemLongClick(AdapterView<?> adapterView, View view,
int position, long id) {
if(!isMultipleList){
acMode = MainActivity.getInstance().startActionMode(modeCallBack);
listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView.setItemChecked(position, true);
isMultipleList = true;
counterChecked++;
setNewTitle();
} else {
listView.setItemChecked(position, true);
counterChecked++;
setNewTitle();
}
return true;
}
});
listView.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position,
long id) {
Log.d(getTag(), "Datensatz: "+String.valueOf(id));
if(isMultipleList){
if(listView.isItemChecked(position)){
listView.setItemChecked(position, true);
counterChecked++;
setNewTitle();
} else {
listView.setItemChecked(position, false);
counterChecked--;
setNewTitle();
}
}
}
});
break;
default:
rootView = inflater.inflate(R.layout.frag_dummy, null);
TextView txt = (TextView) rootView.findViewById(R.id.dummy_txt);
txt.setText(String.valueOf(position));
break;
}
return(rootView);
}
public void setNewTitle(){
if(counterChecked == 1){
acMode.setTitle(counterChecked+" Aufgabe");
} else {
acMode.setTitle(counterChecked+" Aufgaben");
}
}
@Override
public void onPause(){
super.onPause();
if(isMultipleList){
acMode.finish();
}
}
}