Locking to Portrait on app launching rotates from Landscape to Portrait (iOS)









up vote
1
down vote

favorite












I want to lock the orientation of the first screen of the app to portrait. In some screens, I need landscape orientation. I am using the react-native-orientation plugin. But when I launch the application, I see landscape orientation for a while and then quickly rotating to portrait orientation. The next screens are ok.



Here is my code:



componentDidMount() 
 Orientation.lockToPortrait();



Is it possible to solve this performance issue?






ios react-native







share|improve this question























  • do you want to disable the landscape orientation for all screens in your app?
    – Nino9612
    yesterday










  • @Nino9612 No, in some screens I need landscape orientation.
    – Vladimír
    yesterday










  • hmm okay. For which platforms are you developing?
    – Nino9612
    yesterday










  • @Nino9612 For iOS and Android. But this problem is only in iOS.
    – Vladimír
    yesterday











  • Have you tried Orientation.lockToPortrait() outside of component lifecycle method may be at app.js?
    – Prasun
    yesterday














up vote
1
down vote

favorite












I want to lock the orientation of the first screen of the app to portrait. In some screens, I need landscape orientation. I am using the react-native-orientation plugin. But when I launch the application, I see landscape orientation for a while and then quickly rotating to portrait orientation. The next screens are ok.



Here is my code:



componentDidMount() 
 Orientation.lockToPortrait();



Is it possible to solve this performance issue?






ios react-native







share|improve this question























  • do you want to disable the landscape orientation for all screens in your app?
    – Nino9612
    yesterday










  • @Nino9612 No, in some screens I need landscape orientation.
    – Vladimír
    yesterday










  • hmm okay. For which platforms are you developing?
    – Nino9612
    yesterday










  • @Nino9612 For iOS and Android. But this problem is only in iOS.
    – Vladimír
    yesterday











  • Have you tried Orientation.lockToPortrait() outside of component lifecycle method may be at app.js?
    – Prasun
    yesterday












up vote
1
down vote

favorite









up vote
1
down vote

favorite











I want to lock the orientation of the first screen of the app to portrait. In some screens, I need landscape orientation. I am using the react-native-orientation plugin. But when I launch the application, I see landscape orientation for a while and then quickly rotating to portrait orientation. The next screens are ok.



Here is my code:



componentDidMount() 
 Orientation.lockToPortrait();



Is it possible to solve this performance issue?






ios react-native







share|improve this question















I want to lock the orientation of the first screen of the app to portrait. In some screens, I need landscape orientation. I am using the react-native-orientation plugin. But when I launch the application, I see landscape orientation for a while and then quickly rotating to portrait orientation. The next screens are ok.



Here is my code:



componentDidMount() 
 Orientation.lockToPortrait();



Is it possible to solve this performance issue?






ios react-native




ios react-native






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 17 hours ago









Hannes

2,70822941




2,70822941










asked yesterday









Vladimír

10110




10110











  • do you want to disable the landscape orientation for all screens in your app?
    – Nino9612
    yesterday










  • @Nino9612 No, in some screens I need landscape orientation.
    – Vladimír
    yesterday










  • hmm okay. For which platforms are you developing?
    – Nino9612
    yesterday










  • @Nino9612 For iOS and Android. But this problem is only in iOS.
    – Vladimír
    yesterday











  • Have you tried Orientation.lockToPortrait() outside of component lifecycle method may be at app.js?
    – Prasun
    yesterday
















  • do you want to disable the landscape orientation for all screens in your app?
    – Nino9612
    yesterday










  • @Nino9612 No, in some screens I need landscape orientation.
    – Vladimír
    yesterday










  • hmm okay. For which platforms are you developing?
    – Nino9612
    yesterday










  • @Nino9612 For iOS and Android. But this problem is only in iOS.
    – Vladimír
    yesterday











  • Have you tried Orientation.lockToPortrait() outside of component lifecycle method may be at app.js?
    – Prasun
    yesterday















do you want to disable the landscape orientation for all screens in your app?
– Nino9612
yesterday




do you want to disable the landscape orientation for all screens in your app?
– Nino9612
yesterday












@Nino9612 No, in some screens I need landscape orientation.
– Vladimír
yesterday




@Nino9612 No, in some screens I need landscape orientation.
– Vladimír
yesterday












hmm okay. For which platforms are you developing?
– Nino9612
yesterday




hmm okay. For which platforms are you developing?
– Nino9612
yesterday












@Nino9612 For iOS and Android. But this problem is only in iOS.
– Vladimír
yesterday





@Nino9612 For iOS and Android. But this problem is only in iOS.
– Vladimír
yesterday













Have you tried Orientation.lockToPortrait() outside of component lifecycle method may be at app.js?
– Prasun
yesterday




Have you tried Orientation.lockToPortrait() outside of component lifecycle method may be at app.js?
– Prasun
yesterday












2 Answers
2






active

oldest

votes

















up vote
1
down vote













Add below code in your page where orientation lock is delayed:



componentWillMount()
 Orientation.lockToPortrait();
 Orientation.addOrientationListener(this._orientationDidChange);


_orientationDidChange(orientation) 
 Orientation.lockToPortrait(); 


componentWillUnmount() 
 // remove listener
 Orientation.removeOrientationListener(this._orientationDidChange);






share|improve this answer




















  • It didn't help.
    – Vladimír
    14 hours ago

















up vote
0
down vote













react-native-orientation no longer seems maintained.



I encourage you to use react-native-orientation-locker which also provides Orientation.lockToPortrait()






share|improve this answer






















  • Result is the same as with react-native-orientation.
    – Vladimír
    yesterday










  • what is your device ? what is your OS version number ?
    – Julien Malige
    23 hours ago










  • My device is iPhone SE. iOS 12.0.1.
    – Vladimír
    23 hours ago










Your Answer






StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













 

draft saved


draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53222179%2flocking-to-portrait-on-app-launching-rotates-from-landscape-to-portrait-ios%23new-answer', 'question_page');

);

Post as a guest

















2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
1
down vote













Add below code in your page where orientation lock is delayed:



componentWillMount()
 Orientation.lockToPortrait();
 Orientation.addOrientationListener(this._orientationDidChange);


_orientationDidChange(orientation) 
 Orientation.lockToPortrait(); 


componentWillUnmount() 
 // remove listener
 Orientation.removeOrientationListener(this._orientationDidChange);






share|improve this answer




















  • It didn't help.
    – Vladimír
    14 hours ago














up vote
1
down vote













Add below code in your page where orientation lock is delayed:



componentWillMount()
 Orientation.lockToPortrait();
 Orientation.addOrientationListener(this._orientationDidChange);


_orientationDidChange(orientation) 
 Orientation.lockToPortrait(); 


componentWillUnmount() 
 // remove listener
 Orientation.removeOrientationListener(this._orientationDidChange);






share|improve this answer




















  • It didn't help.
    – Vladimír
    14 hours ago












up vote
1
down vote










up vote
1
down vote









Add below code in your page where orientation lock is delayed:



componentWillMount()
 Orientation.lockToPortrait();
 Orientation.addOrientationListener(this._orientationDidChange);


_orientationDidChange(orientation) 
 Orientation.lockToPortrait(); 


componentWillUnmount() 
 // remove listener
 Orientation.removeOrientationListener(this._orientationDidChange);






share|improve this answer












Add below code in your page where orientation lock is delayed:



componentWillMount()
 Orientation.lockToPortrait();
 Orientation.addOrientationListener(this._orientationDidChange);


_orientationDidChange(orientation) 
 Orientation.lockToPortrait(); 


componentWillUnmount() 
 // remove listener
 Orientation.removeOrientationListener(this._orientationDidChange);







share|improve this answer












share|improve this answer



share|improve this answer










answered 18 hours ago









Sandy

1,3821520




1,3821520











  • It didn't help.
    – Vladimír
    14 hours ago
















  • It didn't help.
    – Vladimír
    14 hours ago















It didn't help.
– Vladimír
14 hours ago




It didn't help.
– Vladimír
14 hours ago












up vote
0
down vote













react-native-orientation no longer seems maintained.



I encourage you to use react-native-orientation-locker which also provides Orientation.lockToPortrait()






share|improve this answer






















  • Result is the same as with react-native-orientation.
    – Vladimír
    yesterday










  • what is your device ? what is your OS version number ?
    – Julien Malige
    23 hours ago










  • My device is iPhone SE. iOS 12.0.1.
    – Vladimír
    23 hours ago














up vote
0
down vote













react-native-orientation no longer seems maintained.



I encourage you to use react-native-orientation-locker which also provides Orientation.lockToPortrait()






share|improve this answer






















  • Result is the same as with react-native-orientation.
    – Vladimír
    yesterday










  • what is your device ? what is your OS version number ?
    – Julien Malige
    23 hours ago










  • My device is iPhone SE. iOS 12.0.1.
    – Vladimír
    23 hours ago












up vote
0
down vote










up vote
0
down vote









react-native-orientation no longer seems maintained.



I encourage you to use react-native-orientation-locker which also provides Orientation.lockToPortrait()






share|improve this answer














react-native-orientation no longer seems maintained.



I encourage you to use react-native-orientation-locker which also provides Orientation.lockToPortrait()







share|improve this answer














share|improve this answer



share|improve this answer








edited yesterday

























answered yesterday









Julien Malige

840723




840723











  • Result is the same as with react-native-orientation.
    – Vladimír
    yesterday










  • what is your device ? what is your OS version number ?
    – Julien Malige
    23 hours ago










  • My device is iPhone SE. iOS 12.0.1.
    – Vladimír
    23 hours ago
















  • Result is the same as with react-native-orientation.
    – Vladimír
    yesterday










  • what is your device ? what is your OS version number ?
    – Julien Malige
    23 hours ago










  • My device is iPhone SE. iOS 12.0.1.
    – Vladimír
    23 hours ago















Result is the same as with react-native-orientation.
– Vladimír
yesterday




Result is the same as with react-native-orientation.
– Vladimír
yesterday












what is your device ? what is your OS version number ?
– Julien Malige
23 hours ago




what is your device ? what is your OS version number ?
– Julien Malige
23 hours ago












My device is iPhone SE. iOS 12.0.1.
– Vladimír
23 hours ago




My device is iPhone SE. iOS 12.0.1.
– Vladimír
23 hours ago

















 

draft saved


draft discarded















































 


draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53222179%2flocking-to-portrait-on-app-launching-rotates-from-landscape-to-portrait-ios%23new-answer', 'question_page');

);

Post as a guest

































































-

這個網誌中的熱門文章

Is there any way to eliminate the singular point to solve this integral by hand or by approximations?

圖片
Clash Royale CLAN TAG #URR8PPP up vote 0 down vote favorite 1 $$int_0^1 (1+(x^-p-1)^1-p)^frac1pdx, pin mathbbR, pge 1$$ I find that $x=0,1$ are singular points(discontinuous points of this integral), is there a way to eliminate those singular points to make sure that this integral can be calculated by hand or by Taylor approximations. In either cases, what are those steps of calculating the integral? calculus real-analysis analysis approximation share | cite | improve this question edited Sep 11 at 5:07 asked Sep 11 at 4:48 Mclalalala 126 8 1 What is $p$? Please give more information to make it complete. – xbh Sep 11 at 5:02 @xbh already fixed it, thanks for reminding. – Mclalalala Sep 11 at 5:10 Seems that $0$ is not singular here… [I might compute wrong] – xbh Sep 11 at 5:30 @xbh can you show me how to get the close formula for the integral above? – Mclalalala Sep 11 at 5:33
閱讀完整內容

Why am i infinitely getting the same tweet with the Twitter Search API?

圖片
up vote 0 down vote favorite My code workes perfectly for other queries, but for one query I am infinitely getting the same tweet. I can't understand what the problem is. API call: query='Allergic asthma OR Nonallergic asthma OR Occupational asthma OR EIB OR Exercise-induced bronchoconstriction OR Nocturnal asthma OR Cough-variant asthma' new_tweets = api.search(q=searchQuery, count=100, since_id=since_id, lang='en',tweet_mode='extended') if not new_tweets: print("No more tweets found") break for tweet in new_tweets: if True: print(jsonpickle.encode(tweet._json, unpicklable=False)) my_file = open('searchTweets.txt','a') my_file.write(jsonpickle.encode(tweet._json, unpicklable=False)+'n') my_file.close() else: continue Output in file: https://pastebin.com/JmRCsTeE These are the JSONs of the same Tweet. Other queries that work: Breast cancer OR Prostate cancer OR Colon cancer OR Lung cancer Type 2 dia
閱讀完整內容

Solve: $(3xy-2ay^2)dx+(x^2-2axy)dy=0$

圖片
Clash Royale CLAN TAG #URR8PPP up vote 0 down vote favorite Solve: $(3xy-2ay^2)dx+(x^2-2axy)dy=0$ The given differential equation is not exact. The given differential equation is homogeneous. Therefore, $I.F=frac1Mx+Ny$ $=frac1(3xy-2ay^2)x+(x^2-2axy)y$ $=frac1xy(4x-4ay)$ With Integrating Factor of this form (ugly value), it is difficult to compute further integration, that is involved in solving the equation. So, can we not solve the equation using the rule: If in the differential eqn $Mdx+Ndy=0$, provided $ Mx+Ny ne 0$, andM and N ar eboth homogeneous then $I.F=frac1Mx+Ny$ differential-equations share | cite | improve this question edited Aug 8 at 9:19 asked Aug 8 at 9:13 Soumee 626 2 13 put $y=vx,$ ............. – Magneto Aug 8 at 9:44 add a comment  |  up vote 0 down vote favorite Solve: $(3xy-2ay^2)dx+(x^2-2axy)dy=0$ The given differential equation is not exact. The given differential eq
閱讀完整內容