我的应用程序在屏幕旋转时丢失了一些数据，因此我无法动态显示操作栏项目。
实际上在屏幕旋转中，第一次调用onCreate()然后调用OnSuccess()和OnCreateOptionsMenu()并正确显示操作栏项目。但是下一次轮换它在OnCreateOptionsMmenu()之前调用了OnSuccess()。
我在OnSuccess()中定义了OnCreateOptionsMenu()中使用的变量，因此我无法动态显示actionbarItem。
我已经定义了onRestoreInstanceState()和onSaveInstanceState(），但这些内容的调用时间晚于OnCreateOptionMenu()。
我已将ActionbarSherlock用于此项目。如果有人能够提供线索，那将是非常感激的。
这是我的代码
public class EventDisplayActivity extends BaseActivity {
private ZEvent zEventObject;
private String mLastUpdatedUserID;
private String mUpdateFlag;
private ZEvent mEventData;
private ZVenue mVenueData;
private ZAddress mAddressData;
private ZUpdates mUpdateData;
private ZRiders mRiderData;
MenuItem decline_item;
MenuItem edit_item ;
MenuItem accept_item;
MenuItem rider_item;
MenuItem updates_item;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_event_display);
setTitle("Event View");
vip = new ViewInfoProcessor();
//set UpNavigation ;
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getSupportMenuInflater().inflate(R.menu.event_display, menu);
decline_item = menu.findItem(R.id.decline_item); // for decline
edit_item = menu.findItem(R.id.edit_item); // for edit
accept_item = menu.findItem(R.id.accept_item); // Accept not visible
rider_item = menu.findItem(R.id.view_artist_rider); // view artist rider
updates_item = menu.findItem(R.id.view_all_updates); // view all updates
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int itemId = item.getItemId();
if(itemId == R.id.edit_item){
Bundle b = new Bundle();
Intent intent = new Intent(this, EventEditActivity.class);
intent.putExtra("usage_info","event_view");
intent.putExtra("request_from","event_view");
intent.putExtras(b);
intent.putExtra("EVENT_PARCEL", mEventData);
intent.putExtra("VENUE_PARCEL", mVenueData);
intent.putExtra("ADDRESS_PARCEL", mAddressData);
startActivity(intent);
return true;
}
return false; //return super.onOptionsItemSelected(item);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
if(mEventStatus.equals("Inquiry")){
boolean expired = vip.isExpiredDecider(mEventDate);
if(expired){
decline_item.setVisible(false); // for decline
edit_item.setVisible(false); // for edit
accept_item.setVisible(false); // Accept not visible
rider_item.setVisible(false); // view artist rider
updates_item.setVisible(false); // view all updates
}else{
decline_item.setVisible(true); // for decline
edit_item.setVisible(true); // for edit
accept_item.setVisible(false);
if (mRiderId != null) {
rider_item.setVisible(true); // view artist rider
} else {
rider_item.setVisible(false); // view artist rider
}
Log.i(">>>>","flag"+ mUpdateFlag);
//here I used the mUpdateFlag varible value
if(mUpdateFlag != null){
if(mUpdateFlag.equals("1") && (!mLastUpdatedUserID.equals(mLoggedUserId))){
updates_item.setVisible(true); // view all updates
}else{
updates_item.setVisible(false); // Not view all updates
}
}else{
updates_item.setVisible(false); //view all updates
}
}
}// end
return super.onPrepareOptionsMenu(menu);
};
AsyncHttpResponseHandler eventResponse = new AsyncHttpResponseHandler() {
public void onSuccess(int arg0, String arg1) {
System.out.println("onSuccess() in Event Dispaly" );
try {
JSONArray proposalArray = new JSONObject(arg1).getJSONArray("proposal");
JSONArray riderArray = new JSONObject(arg1).getJSONArray("rider");
JSONArray updatesArray = new JSONObject(arg1).getJSONArray("updates");
JSONArray agreementArray = new JSONObject(arg1).getJSONArray("agreement_details");
JSONArray ratingsArray = new JSONObject(arg1).getJSONArray("rating_details");
mEventData = new ZEvent(proposalArray.getJSONObject(0));
mVenueData = new ZVenue(proposalArray.getJSONObject(0));
mAddressData = new ZAddress(proposalArray.getJSONObject(0));
if(!updatesArray.isNull(0)){
mUpdateData = new ZUpdates(updatesArray.getJSONObject(0));
}
if(!riderArray.isNull(0)){
mRiderData = new ZRiders(riderArray.getJSONObject(0));
}
if(mRiderData != null){
mRiderId = mRiderData.getRiderID();
String mRiderText = mRiderData.getRiderText();
String mRiderStatus = mRiderData.getRiderStatus();
}
if(mUpdateData != null){
mUpdateFlag = mUpdateData.getUpdateFlag();
Log.i("define 1st time:::","flag"+mUpdateFlag);
mLastUpdatedUserID = mUpdateData.getLastUpdatedUserID();
}
defineViews(mEventData, mVenueData, mAddressData, mRiderData, mUpdateData);
} catch (JSONException e) {
e.printStackTrace();
}
};
public void onFailure(Throwable arg0) {
};
};
@Override
protected void onInit(ModelBase... data) {
System.out.println("onInit() called in EDA");
SharedPreferences sessionkey = getApplicationContext().getSharedPreferences("session_detail", Context.MODE_PRIVATE);
session_token = sessionkey.getString("session", "");
mLoggedUserType = sessionkey.getString("user_type", "");
mLoggedUserId = sessionkey.getString("user_id", "");
Intent i = getIntent();
Bundle extras = i.getExtras();
zEventObject = extras.getParcelable("EVENT_ITEM");
mProposalId = zEventObject.getProposalID();
mEventStatus = zEventObject.getProposalStatus();
mEventDate = zEventObject.getEventDate();
mAgreedPromoterUserId = zEventObject.getAgreedPromoterUserID();
mAgreedBAUserId = zEventObject.getAgreedAgentUserID();
zEventObject.getLastUpdatedByUserID();
params = new RequestParams();
params.put("token", session_token);
params.put("proposal_id", mProposalId);
Log.i("PRPOPOSAL ID",""+mProposalId +""+ session_token);
mApiClient.getView(eventViewURL, params, eventResponse);
}
private void defineViews(ZEvent eItem, ZVenue vItem, ZAddress aItem, ZRiders rItem, ZUpdates uItem){
// here goes UIs
}
}// End DefineView
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelable("EVENT_ITEM", zEventObject);
outState.putParcelable("UPDATE_ITEM", mUpdateData);
System.out.println("onSaveInstanceState()");
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
zEventObject = savedInstanceState.getParcelable("EVENT_ITEM");
mUpdateData = savedInstanceState.getParcelable("UPDATE_ITEM");
if(mUpdateData != null){
mUpdateFlag = mUpdateData.getUpdateFlag();
Log.i("define 2st time:::","flag"+mUpdateFlag);
mLastUpdatedUserID = mUpdateData.getLastUpdatedUserID();
}
System.out.println("onRestoreInstanceState()");
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
setContentView(R.layout.activity_event_display);
}
}
实际上在屏幕旋转中，第一次调用onCreate()然后调用OnSuccess()和OnCreateOptionsMenu()并正确显示操作栏项目。但是下一次轮换它在OnCreateOptionsMmenu()之前调用了OnSuccess()。
答案 0 :(得分：0)
您是否尝试过清单中的以下代码..
<activity
android:name=".YourActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" android:windowSoftInputMode="adjustPan"/>
答案 1 :(得分：0)
当您的屏幕旋转以便oncreate方法再次调用stooping时，我们使用它 清单文件中的android：configChanges =“orientation | screenSize”。