android.view.Window#setCallback ( )源码实例Demo

Dialog(@NonNull Context context, @StyleRes int themeResId, boolean createContextThemeWrapper) {
    if (createContextThemeWrapper) {
        if (themeResId == ResourceId.ID_NULL) {
            final TypedValue outValue = new TypedValue();
            context.getTheme().resolveAttribute(R.attr.dialogTheme, outValue, true);
            themeResId = outValue.resourceId;
        }
        mContext = new ContextThemeWrapper(context, themeResId);
    } else {
        mContext = context;
    }

    mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);

    final Window w = new PhoneWindow(mContext);
    mWindow = w;
    w.setCallback(this);
    w.setOnWindowDismissedCallback(this);
    w.setOnWindowSwipeDismissedCallback(() -> {
        if (mCancelable) {
            cancel();
        }
    });
    w.setWindowManager(mWindowManager, null, null);
    w.setGravity(Gravity.CENTER);

    mListenersHandler = new ListenersHandler(this);
}
 

public static void attach(@NonNull Activity activity) {
    if (activity instanceof AppCompatActivity) {
        LayoutInflaterCompat.setFactory(activity.getLayoutInflater(),
                new RobotoInflater(((AppCompatActivity) activity).getDelegate(), activity.getWindow()));
    } else {
        final Window window = activity.getWindow();
        final Window.Callback callback = window.getCallback();
        LayoutInflaterCompat.setFactory(activity.getLayoutInflater(),
                new RobotoInflater(AppCompatDelegate.create(activity, StubAppCompatCallback.INSTANCE), window));
        window.setCallback(callback);
    }
}
 

@Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
    Window window = activity.getWindow();
    Window.Callback callback= window.getCallback();
    window.setCallback(new MonitorCallback(activity,callback));
}