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!
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./packages/apps/Settings/src/com/android/settings/homepage/SettingsHomepageActivity.java@Overrideprotected 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 textfinal 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
