Programmatically Lock into Portrait Mode for Certain Operations

Programmatically lock into portrait mode for certain operations

Try this:

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
//Do your operation
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);

Workaround to lock portrait orientation in a relative layout?

You can define orinetation in AndroidManifest.xml

<activity android:name=".NameOfTheActivity"
    android:screenOrientation="portrait"/>

Flutter: How to set and lock screen orientation on-demand

First import the services package:

import 'package:flutter/services.dart';

This will give you access to the SystemChrome class, which "Controls specific aspects of the operating system's graphical interface and how it interacts with the application."

When you load the Widget, do something like this:

@override
void initState(){
  super.initState();
  SystemChrome.setPreferredOrientations([
      DeviceOrientation.landscapeRight,
      DeviceOrientation.landscapeLeft,
  ]);
}

then when I leave the page, put it back to normal like this:

@override
dispose(){
  SystemChrome.setPreferredOrientations([
    DeviceOrientation.landscapeRight,
    DeviceOrientation.landscapeLeft,
    DeviceOrientation.portraitUp,
    DeviceOrientation.portraitDown,
  ]);
  super.dispose();
}

How do I lock the sceen from rotating in a steroids.js - AppGyver mobile app

AppGyver employee here – I just wrote a quick device orientation guide about the issue. Hope this answers your question!

Method to programmatically switch between Landscape-Portrait for a single View on Android?

No: orientation is currently handled at the Activity level, not the View level. If you had a completely custom View you could CHOOSE to draw it in landscape yourself (landscape simply being longer side as the horizontal, shorter as the vertical) but with the MapView you don't get that option.

How to set portrait view for android application

To do it pro-grammatically in every activity.

@Override
    public void onCreate(Bundle savedInstanceState) {
          setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
}

How do I make it only landscape for tablets and only portrait for phones?

Here is my suggestion:
First try to determine the type of device using screen dimensions. You could refer to this post.
On the second step you can change the screen orientation using setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);. There is another post here.

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