如何在Spinner中保持沉浸模式? [英] How do I maintain the Immersive Mode in Spinner?

问题描述

我使用沉浸式粘滞模式隐藏导航栏和操作栏:

I use immersive-sticky mode to hide the navigation bar and action bar:

@TargetApi(19)
private void setImmersiveMode() {
    if (Build.VERSION.SDK_INT >= 19) {
        View decorView = getWindow().getDecorView();
        int uiOptions = getImmersiveUiOptions(decorView);
        decorView.setSystemUiVisibility(uiOptions);
        ActionBar actionBar = getActionBar();
        if (null!=actionBar) {
            actionBar.hide();
        }
    }
}

触摸Spinner时，将显示navigationBar并禁用沉浸模式.

When a Spinner is touched, the navigationBar is shown and immersive mode is disabled.

此解决方案适用于对话框:

dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
dialog.show();
dialog.getWindow().getDecorView().setSystemUiVisibility(
context.getWindow().getDecorView().getSystemUiVisibility());
dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);

但是Spinner没有我可以覆盖的show()方法.

But Spinner doesn't have show() method that I could overwrite.

如何防止触摸微调框时显示系统UI?

How can I prevent System UI from showing when a Spinner is touched?

编辑:此问题与隐藏导航栏(BackButton，HomeButton和LatestTasksButton)有关.我已经在使用FLAG_FULLSCREEN

Edit: this question is about keeping the Navigation Bar hidden (BackButton, HomeButton and RecentTasksButton). I'm already using FLAG_FULLSCREEN

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);   

推荐答案

我知道这已经太晚了，但是我终于找到了解决方法此处:

I know this is super late, but I finally found a solution to this here:

只需在微调器上调用它，然后再使用它:

Just call this on your spinner before using it:

import android.widget.PopupWindow
import android.widget.Spinner

fun Spinner.avoidDropdownFocus() {
    try {
        val isAppCompat = this is androidx.appcompat.widget.AppCompatSpinner
        val spinnerClass = if (isAppCompat) androidx.appcompat.widget.AppCompatSpinner::class.java else Spinner::class.java
        val popupWindowClass = if (isAppCompat) androidx.appcompat.widget.ListPopupWindow::class.java else android.widget.ListPopupWindow::class.java

        val listPopup = spinnerClass
                .getDeclaredField("mPopup")
                .apply { isAccessible = true }
                .get(this)
        if (popupWindowClass.isInstance(listPopup)) {
            val popup = popupWindowClass
                    .getDeclaredField("mPopup")
                    .apply { isAccessible = true }
                    .get(listPopup)
            if (popup is PopupWindow) {
                popup.isFocusable = false
            }
        }
    } catch (e: Exception) {
        e.printStackTrace()
    }
}

这篇关于如何在Spinner中保持沉浸模式?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！