Android Wear DayNight Theme AppCompat

Question

我正在尝试在我的 Android Wear 应用程序上使用 AppCompat DayNight 主题，但它不起作用，我的 Activity 需要环境模式，所以我像这样扩展 WearableActivity :

public class BaseActivity extends WearableActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setAmbientEnabled();
        ....
    }

}

我的主题是这样的：

<style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@color/colorBackground</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:textColorPrimary">@color/textColorPrimary</item>
    </style>

但没有任何效果，主题根本没有改变...我在我的移动应用程序中使用相同的主题并且它有效，唯一的区别是我的 activity extend AppCompatActivity .

有没有办法让它适用于 Android Wear 应用程序？

Answer 1

我通过将此添加到我的 WearableActivity（copy/paste 来自 AppCompatActivity）设法使其适用于我的用例（强制白天或晚上）：

public class BaseActivity extends WearableActivity implements AppCompatCallback {
    private AppCompatDelegate delegate;
    private int themeId = 0;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {

        final AppCompatDelegate delegate = getDelegate();
        delegate.installViewFactory();
        delegate.onCreate(savedInstanceState);
        if (delegate.applyDayNight() && themeId != 0) {
            // If DayNight has been applied, we need to re-apply the theme for
            // the changes to take effect. On API 23+, we should bypass
            // setTheme(), which will no-op if the theme ID is identical to the
            // current theme ID.
            if (Build.VERSION.SDK_INT >= 23) {
                onApplyThemeResource(getTheme(), themeId, false);
            } else {
                setTheme(themeId);
            }
        }
        super.onCreate(savedInstanceState);
    }

    @Override
    public void setTheme(@StyleRes final int resid) {
        super.setTheme(resid);
        // Keep hold of the theme id so that we can re-set it later if needed
        themeId = resid;
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        getDelegate().onSaveInstanceState(outState);
    }

    /**
     * @return The {@link AppCompatDelegate} being used by this Activity.
     */
    @NonNull
    public AppCompatDelegate getDelegate() {
        if (delegate == null) {
            delegate = AppCompatDelegate.create(this, this);
        }
        return delegate;
    }

    @Override
    public void onSupportActionModeStarted(ActionMode mode) {

    }

    @Override
    public void onSupportActionModeFinished(ActionMode mode) {

    }

    @Nullable
    @Override
    public ActionMode onWindowStartingSupportActionMode(ActionMode.Callback callback) {
        return null;
    }
}

现在我可以使用了 AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES/NO);

Android Wear DayNight Theme AppCompat

Android Wear DayNight Theme AppCompat

android

wear-os

android-appcompat

android-theme