Android13 控制设置界面 双栏显示或单栏显示

Android 13 设置界面会判断当前屏幕的大小,如果是大屏,则为双栏显示!

./packages/apps/Settings/src/com/android/settings/homepage/SettingsHomepageActivity.java

      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          mIsEmbeddingActivityEnabled = ActivityEmbeddingUtils.isEmbeddingActivityEnabled(this);//这里来进行判断
          if (mIsEmbeddingActivityEnabled) {
              final UserManager um = getSystemService(UserManager.class);
              final UserInfo userInfo = um.getUserInfo(getUser().getIdentifier());
              if (userInfo.isManagedProfile()) {
                  final Intent intent = new Intent(getIntent())
                          .setClass(this, DeepLinkHomepageActivityInternal.class)
                          .addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT)
                          .putExtra(EXTRA_USER_HANDLE, getUser());
                  intent.removeFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                  startActivityAsUser(intent, um.getPrimaryUser().getUserHandle());
                  finish();
                  return;
              }
          }
  
          setupEdgeToEdge();
          setContentView(R.layout.settings_homepage_container);
          ...
          
          
/packages/apps/Settings/src/com/android/settings/activityembedding/ActivityEmbeddingUtils.java
/** Whether to support embedding activity feature. */
public static boolean isEmbeddingActivityEnabled(Context context) {
    //update text
    final boolean isFlagEnabled = false;//FeatureFlagUtils.isEnabled(context,FeatureFlagUtils.SETTINGS_SUPPORT_LARGE_SCREEN);
    final boolean isSplitSupported = SplitController.getInstance().isSplitSupported();
  
    Log.d(TAG, "isFlagEnabled = " + isFlagEnabled);
    Log.d(TAG, "isSplitSupported = " + isSplitSupported);
  
    return isFlagEnabled && isSplitSupported;
}

//当isFlagEnabled和isSplitSupported都为true时为双栏显示,反之则单栏,&&表示可以只修改其中一个为false就ok了