// we want a self defined behavior for the back button
@Override
public void onBackPressed() {
// exit fullscreen mode if it is enabled and action bar is disabled or the back stack is empty
if (mIitcWebView.isInFullscreen() && mBackStack.isEmpty()) {
mIitcWebView.toggleFullscreen();
return;
}
// close drawer if opened
if (mNavigationHelper.isDrawerOpened()) {
mNavigationHelper.closeDrawers();
return;
}
// kill all open iitc dialogs
if (!mDialogStack.isEmpty()) {
final String id = mDialogStack.pop();
mIitcWebView.loadUrl(
"javascript: "
+ "var selector = $(window.DIALOGS['"
+ id
+ "']); "
+ "selector.dialog('close'); "
+ "selector.remove();");
return;
}
// Pop last item from backstack and pretend the relevant menu item was clicked
if (!mBackStack.isEmpty()) {
backStackPop();
mBackButtonPressed = true;
return;
}
if (mBackButtonPressed || !mSharedPrefs.getBoolean("pref_press_twice_to_exit", false)) {
super.onBackPressed();
} else {
mBackButtonPressed = true;
Toast.makeText(this, "Press twice to exit", Toast.LENGTH_SHORT).show();
// reset back button after 2 seconds
new Handler()
.postDelayed(
new Runnable() {
@Override
public void run() {
mBackButtonPressed = false;
}
},
2000);
}
}
@Override
public boolean onPrepareOptionsMenu(final Menu menu) {
boolean visible = false;
if (mNavigationHelper != null) visible = !mNavigationHelper.isDrawerOpened();
if (mIsLoading) visible = false;
for (int i = 0; i < menu.size(); i++) {
final MenuItem item = menu.getItem(i);
final boolean enabled = mAdvancedMenu.contains(item.getTitle());
switch (item.getItemId()) {
case R.id.action_settings:
item.setVisible(true);
break;
case R.id.locate:
item.setVisible(enabled && visible);
item.setEnabled(!mIsLoading);
item.setIcon(
mUserLocation.isFollowing()
? R.drawable.ic_action_location_follow
: R.drawable.ic_action_location_found);
break;
case R.id.menu_debug:
item.setVisible(enabled);
item.setChecked(mDebugging);
break;
default:
item.setVisible(enabled && visible);
}
}
return super.onPrepareOptionsMenu(menu);
}
