how to stop activity recreation on screen orientation?

Question

how i can stop the restarting or recalling of on create() on screen orientation ,i want to stop the recreation of activity on screen orientation. thanks in advance please te

Answer 1

Up to API 13 there was a new value to the configChanges attribute, screenSize

So if you're using large screens make sure to add screenSize in your configChanges attribute:

    android:configChanges="orientation|keyboardHidden|screenSize"

Answer 2

This is happening because when screen orientation rotates the Activity gets re-started. In this case you can add configChanges attribute in your tag in the AndroidManifest file to stop the re-creation of the Activity.

<activity android:name=".Activity_name"
          android:configChanges="orientation|keyboardHidden">

By, this also it won't stop though the orientation changes.

@Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        if(newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE){
            setContentView(R.layout.login_landscape);
        }
        else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
            setContentView(R.layout.login);         
        }
    }

Answer 3

In your AndroidManifest.xml file, in the activity add

android:configChanges="keyboardHidden|orientation"

Example as below:

 <activity android:name=".YourActivity" android:label="@string/app_name" android:configChanges="keyboardHidden|orientation">

Answer 4

Two ways for this:

Either you can set android:configChanges="keyboardHidden|orientation" in Manifest file to avoid recreation of activity.

Or Make the changes you want to apply on changing the orientation inside the overrided method

@Override

public void onConfigurationChanged(Configuration newConfig) {

            // Perform the actions

    super.onConfigurationChanged(newConfig);

}

Answer 5

Not the best, but maybe the easiest solution is to add

android:configChanges="keyboardHidden|orientation" 

to youractivity in your manifest so it looks like

<activity android:name="com.your.activity"
      android:configChanges="keyboardHidden|orientation"/>

Answer 6

There are a more full list of parameters for prevent activity recreations (in Manifest.xml):

<activity 
    android:name = ".MyActivity" 
    android:configChanges = "orientation|keyboard|keyboardHidden|screenLayout|screenSize">
</activity>