Activity Reloads When Orientation Changes In Android

When my main activity starts after the splash screen it parses 4 big XML files. This takes a few seconds and I'm able to hide this in the time the splash screen shows at startup. B

Solution 1:

add this code in your android manifest file in every activity node if you're targeting API level 12 or less.

android:configChanges="orientation|keyboardHidden"

For level 13 and onwards you also have to include "screensize", i.e.:

    android:configChanges="orientation|keyboardHidden|screenSize"

now paste this code in your every activity's java classes.

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    // Checks the orientation of the screen
    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
        Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
    } else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
        Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
    }
    // Checks whether a hardware keyboard is available
    if (newConfig.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_NO) {
        Toast.makeText(this, "keyboard visible", Toast.LENGTH_SHORT).show();
    } else if (newConfig.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) {
        Toast.makeText(this, "keyboard hidden", Toast.LENGTH_SHORT).show();
    }
}

Solution 2:

You could prevent this by adding android:configChanges="orientation" to your activity in AndroidManifest file.