How do I change the orientation of my activity on android?

09/02/2019 Off By admin

How do I change the orientation of my activity on android?

If you want to manually handle orientation changes in your app you must declare the “orientation” , “screenSize” , and “screenLayout” values in the android:configChanges attributes. You can declare multiple configuration values in the attribute by separating them with a pipe | character.

How do you change the orientation of an activity?

Yes, you can set the screen orientation programatically anytime you want using: setRequestedOrientation(ActivityInfo. SCREEN_ORIENTATION_LANDSCAPE); setRequestedOrientation(ActivityInfo. SCREEN_ORIENTATION_PORTRAIT);

How do I stop android from restarting activity when changing orientations?

If you want the activity to not restart during screen orientation change, you can use the below AndroidManifest. xml. Please note the activity android:configChanges=”orientation|screenSize” attribute. This attribute makes the activity not restart when change screen orientation.

Why an activity is destroyed and recreated when you rotate your screen?

Background. When you rotate your device and the screen changes orientation, Android usually destroys your application’s existing Activities and Fragments and recreates them. Android does this so that your application can reload resources based on the new configuration.

How does ViewModel handle orientation change in android?

Android ViewModel recreated on screen rotation

  1. Activity is started and ViewModel instance is created.
  2. Activity is put to background.
  3. Device screen is rotated.
  4. Activity is put back to foreground.
  5. ViewModel’s onCleared method is called and new object is created.

How do I change the default orientation on android?

How to Set the Orientation on Your Android’s Display

  1. Open the Settings app.
  2. Choose Display.
  3. Choose Device Rotation. If necessary, tap the chevron by the Advanced item to locate the Device Rotation item.
  4. Select an option.

How do you change orientation when retaining data?

Another most common solution to dealing with orientation changes by setting the android:configChanges flag on your Activity in AndroidManifest. xml. Using this attribute your Activities won’t be recreated and all your views and data will still be there after orientation change.

How can we cope with screen orientation changes?

What are configuration changes in Android?

Configuration changes in Android refer to a set of system-level events that can strong affect application and UI behavior. These include such changes as: Orientation change (e.g., portrait to landscape); Screen size/depth change (e.g., HDMI hot-plug, orientation on newer API levels);

How does ViewModel survive screen rotation?

How do I change my default screen orientation?